Re: [MBZ] 190D AC
Depends on the exact thermistor and application, but usually on the order of hundreds to thousands of ohms. Should vary with temp, too, quite a bit. I don't remember if they are positive or negative gradient, but either an open or a short is bad -- either it's reading infinitely hot or infinitely cold ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
Any idea what the values should be? On 9/13/2019 5:04 PM, Peter Frederick via Mercedes wrote: Check the resistance of the sensor, they are all thermistors. Also check for continuity. If you have access to a wiring diagram, you should be able to pull a connector on the PBCU and test the appropriate pins on the connector. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com --- This email has been checked for viruses by AVG. https://www.avg.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
Check the resistance of the sensor, they are all thermistors. Also check for continuity. If you have access to a wiring diagram, you should be able to pull a connector on the PBCU and test the appropriate pins on the connector. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
Well problem not solved. It is current 74 and when driving down the highway it after about 10 minutes the fog starts followed by snow flakes then freezing up. It literally feels like sitting in front of a deep freeze. Compressor still appears to not be cycling. Is there a way I can test the evap temp sensor? Maybe the wiring repair was not successful so maybe I can test it at the connector to see. Otherwise would it be something in the relay or the pbu that is not cycling the compressor? I suppose I can also recover the refrigerant and charge it again but I do not think that is the problem. If a low charge was causing it to freeze up the evap sensor should be cutting the compressor off I would think. Sent from my iPhone > On Sep 12, 2019, at 6:45 PM, Kaleb Striplin wrote: > > I don’t think so but it’s possible. I would think the compressor should cycle > though. Anyway I think I found the problem. I took everything apart to > replace a squeaky blower motor. I had repaired some wires back behind the > battery that were mouse damaged. I noticed the wiring to the evap temp sensor > were chewed on. I could not tell if they were completely chewed but looked > bad so I repaired it. I’m betting that was the problem but will know tomorrow > when I drive it to Tulsa. > > Sent from my iPhone > >> On Sep 12, 2019, at 6:41 PM, OK Don via Mercedes >> wrote: >> >> Isn't that a sign of not enough gas? >> >> On Thu, Sep 12, 2019 at 2:33 PM Kaleb Striplin via Mercedes < >> mercedes@okiebenz.com> wrote: >> >>> So I replaced the manifold hose assembly, new drier, converted to 134 and >>> pulled vacuum for 1 hour before charging. AC blow great, super cold. Once >>> you are driving it blows ice cubes, literally. So after about 15-20 minutes >>> the evaporator is basically freezing up. You will start getting fog blowing >>> out the vents followed by snow, then loss of airflow. If I put it in ec >>> mode for a few minutes it thaws out then is fine again. This issue seems to >>> be the compressor is constantly running, it does not cycle off and on. The >>> PBU that was in the car had a programa rebuilt sticker and the snow flake >>> button did not turn the compressor on at all but the top button did that is >>> supposed to be for dehumify and runs compressor constantly. The snow flake >>> button is supposed to be normal mode that cycles compressor. I swapped in a >>> different PBU and the compressor kicks on with the snow flake button but >>> stays running all the time. Could this be something in the PBu? Or the >>> kooks relay? Or maybe a sensor? These 201 systems are a little different >>> from other systems MB used. >>> >>> Sent from my iPhone >>> >>> ___ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> >> -- >> OK Don >> >> "Whenever you find yourself on the side of the majority, it is time to >> pause and reflect." Mark Twain >> >> "There are three kinds of men: The ones that learns by reading. The few who >> learn by observation. The rest of them have to pee on the electric fence >> for themselves." >> >> WILL ROGERS, *The Manly Wisdom of Will Rogers* >> 2013 F150, 18 mpg >> 2017 Subaru Legacy, 30 mpg >> 1957 C182A, 12 mpg - but at 150 mph! >> ___ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
A bad evaporator temp sensor is what I would have suggested. It's there to cut the compressor off when the evaporator is too cold, and those are your symptoms. Check to make sure the sensor is in the correct position, too. Don't know where it is on the W201, but on the W124 it's above the driver's foot, inside. Peter ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
I don’t think so but it’s possible. I would think the compressor should cycle though. Anyway I think I found the problem. I took everything apart to replace a squeaky blower motor. I had repaired some wires back behind the battery that were mouse damaged. I noticed the wiring to the evap temp sensor were chewed on. I could not tell if they were completely chewed but looked bad so I repaired it. I’m betting that was the problem but will know tomorrow when I drive it to Tulsa. Sent from my iPhone > On Sep 12, 2019, at 6:41 PM, OK Don via Mercedes > wrote: > > Isn't that a sign of not enough gas? > > On Thu, Sep 12, 2019 at 2:33 PM Kaleb Striplin via Mercedes < > mercedes@okiebenz.com> wrote: > >> So I replaced the manifold hose assembly, new drier, converted to 134 and >> pulled vacuum for 1 hour before charging. AC blow great, super cold. Once >> you are driving it blows ice cubes, literally. So after about 15-20 minutes >> the evaporator is basically freezing up. You will start getting fog blowing >> out the vents followed by snow, then loss of airflow. If I put it in ec >> mode for a few minutes it thaws out then is fine again. This issue seems to >> be the compressor is constantly running, it does not cycle off and on. The >> PBU that was in the car had a programa rebuilt sticker and the snow flake >> button did not turn the compressor on at all but the top button did that is >> supposed to be for dehumify and runs compressor constantly. The snow flake >> button is supposed to be normal mode that cycles compressor. I swapped in a >> different PBU and the compressor kicks on with the snow flake button but >> stays running all the time. Could this be something in the PBu? Or the >> kooks relay? Or maybe a sensor? These 201 systems are a little different >> from other systems MB used. >> >> Sent from my iPhone >> >> ___ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> >> > > -- > OK Don > > "Whenever you find yourself on the side of the majority, it is time to > pause and reflect." Mark Twain > > "There are three kinds of men: The ones that learns by reading. The few who > learn by observation. The rest of them have to pee on the electric fence > for themselves." > > WILL ROGERS, *The Manly Wisdom of Will Rogers* > 2013 F150, 18 mpg > 2017 Subaru Legacy, 30 mpg > 1957 C182A, 12 mpg - but at 150 mph! > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
Isn't that a sign of not enough gas? On Thu, Sep 12, 2019 at 2:33 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: > So I replaced the manifold hose assembly, new drier, converted to 134 and > pulled vacuum for 1 hour before charging. AC blow great, super cold. Once > you are driving it blows ice cubes, literally. So after about 15-20 minutes > the evaporator is basically freezing up. You will start getting fog blowing > out the vents followed by snow, then loss of airflow. If I put it in ec > mode for a few minutes it thaws out then is fine again. This issue seems to > be the compressor is constantly running, it does not cycle off and on. The > PBU that was in the car had a programa rebuilt sticker and the snow flake > button did not turn the compressor on at all but the top button did that is > supposed to be for dehumify and runs compressor constantly. The snow flake > button is supposed to be normal mode that cycles compressor. I swapped in a > different PBU and the compressor kicks on with the snow flake button but > stays running all the time. Could this be something in the PBu? Or the > kooks relay? Or maybe a sensor? These 201 systems are a little different > from other systems MB used. > > Sent from my iPhone > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- OK Don "Whenever you find yourself on the side of the majority, it is time to pause and reflect." Mark Twain "There are three kinds of men: The ones that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." WILL ROGERS, *The Manly Wisdom of Will Rogers* 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] 190D AC
So I replaced the manifold hose assembly, new drier, converted to 134 and pulled vacuum for 1 hour before charging. AC blow great, super cold. Once you are driving it blows ice cubes, literally. So after about 15-20 minutes the evaporator is basically freezing up. You will start getting fog blowing out the vents followed by snow, then loss of airflow. If I put it in ec mode for a few minutes it thaws out then is fine again. This issue seems to be the compressor is constantly running, it does not cycle off and on. The PBU that was in the car had a programa rebuilt sticker and the snow flake button did not turn the compressor on at all but the top button did that is supposed to be for dehumify and runs compressor constantly. The snow flake button is supposed to be normal mode that cycles compressor. I swapped in a different PBU and the compressor kicks on with the snow flake button but stays running all the time. Could this be something in the PBu? Or the kooks relay? Or maybe a sensor? These 201 systems are a little different from other systems MB used. Sent from my iPhone ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190d ac update
Most common leaks those compressors are the manifold o-rings and the shaft seal. Neither will improve with running. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190d ac update
Yea it does. I wonder if the compressor is really leaking and if so, if it’s from sitting and possible will stop leaking once the system starts being used again. Sent from my iPhone > On Jun 3, 2018, at 1:07 PM, Dan Penoff via Mercedes > wrote: > > It won’t work in shaft seals, understandably, but it will seal up leaking O > rings and porous hoses. > > Their criteria is that it has to hold 29” of Hg for a minimum of 30 minutes > to be small enough for it to seal. > > Sounds like your car meets that. > > -D > > >> On Jun 3, 2018, at 2:02 PM, Kaleb C. Striplin via Mercedes >> wrote: >> >> Will that stuff seal up o rings? Don’t think it will do anything for a >> leaking compressor will it? >> >> Sent from my iPhone >> >>> On Jun 3, 2018, at 12:56 PM, Dan Penoff via Mercedes >>> wrote: >>> >>> OK, then I would agree with your diagnosis. >>> >>> Throw a $30 can of ClipLight in it and see what it does. >>> >>> -D >>> On Jun 3, 2018, at 12:31 PM, Kaleb C. Striplin via Mercedes wrote: The valves were closed. Sent from my iPhone > On Jun 3, 2018, at 11:30 AM, Dan Penoff via Mercedes > wrote: > > Probably, but why didn’t you close the service valves to isolate the car > from the loop? I always do this whenever I check for a vacuum, as that > way I know my gauges and manifold aren’t the source. > > ? > > -D > > >> On Jun 3, 2018, at 12:22 PM, Kaleb C. Striplin via Mercedes >> wrote: >> >> After sitting since yesterday it has lost almost all the vacuum. Come of >> it could be the machine hoses maybe but I would say it is safe to say >> the car has leaks. >> >> Sent from my iPhone >> >> ___ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> >> > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >>> >>> ___ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >> >> >> ___ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190d ac update
It won’t work in shaft seals, understandably, but it will seal up leaking O rings and porous hoses. Their criteria is that it has to hold 29” of Hg for a minimum of 30 minutes to be small enough for it to seal. Sounds like your car meets that. -D > On Jun 3, 2018, at 2:02 PM, Kaleb C. Striplin via Mercedes > wrote: > > Will that stuff seal up o rings? Don’t think it will do anything for a > leaking compressor will it? > > Sent from my iPhone > >> On Jun 3, 2018, at 12:56 PM, Dan Penoff via Mercedes >> wrote: >> >> OK, then I would agree with your diagnosis. >> >> Throw a $30 can of ClipLight in it and see what it does. >> >> -D >> >>> On Jun 3, 2018, at 12:31 PM, Kaleb C. Striplin via Mercedes >>> wrote: >>> >>> The valves were closed. >>> >>> Sent from my iPhone >>> On Jun 3, 2018, at 11:30 AM, Dan Penoff via Mercedes wrote: Probably, but why didn’t you close the service valves to isolate the car from the loop? I always do this whenever I check for a vacuum, as that way I know my gauges and manifold aren’t the source. ? -D > On Jun 3, 2018, at 12:22 PM, Kaleb C. Striplin via Mercedes > wrote: > > After sitting since yesterday it has lost almost all the vacuum. Come of > it could be the machine hoses maybe but I would say it is safe to say the > car has leaks. > > Sent from my iPhone > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >>> >>> ___ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >> >> >> ___ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190d ac update
Will that stuff seal up o rings? Don’t think it will do anything for a leaking compressor will it? Sent from my iPhone > On Jun 3, 2018, at 12:56 PM, Dan Penoff via Mercedes > wrote: > > OK, then I would agree with your diagnosis. > > Throw a $30 can of ClipLight in it and see what it does. > > -D > >> On Jun 3, 2018, at 12:31 PM, Kaleb C. Striplin via Mercedes >> wrote: >> >> The valves were closed. >> >> Sent from my iPhone >> >>> On Jun 3, 2018, at 11:30 AM, Dan Penoff via Mercedes >>> wrote: >>> >>> Probably, but why didn’t you close the service valves to isolate the car >>> from the loop? I always do this whenever I check for a vacuum, as that way >>> I know my gauges and manifold aren’t the source. >>> >>> ? >>> >>> -D >>> >>> On Jun 3, 2018, at 12:22 PM, Kaleb C. Striplin via Mercedes wrote: After sitting since yesterday it has lost almost all the vacuum. Come of it could be the machine hoses maybe but I would say it is safe to say the car has leaks. Sent from my iPhone ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >>> >>> ___ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >> >> >> ___ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190d ac update
OK, then I would agree with your diagnosis. Throw a $30 can of ClipLight in it and see what it does. -D > On Jun 3, 2018, at 12:31 PM, Kaleb C. Striplin via Mercedes > wrote: > > The valves were closed. > > Sent from my iPhone > >> On Jun 3, 2018, at 11:30 AM, Dan Penoff via Mercedes >> wrote: >> >> Probably, but why didn’t you close the service valves to isolate the car >> from the loop? I always do this whenever I check for a vacuum, as that way >> I know my gauges and manifold aren’t the source. >> >> ? >> >> -D >> >> >>> On Jun 3, 2018, at 12:22 PM, Kaleb C. Striplin via Mercedes >>> wrote: >>> >>> After sitting since yesterday it has lost almost all the vacuum. Come of it >>> could be the machine hoses maybe but I would say it is safe to say the car >>> has leaks. >>> >>> Sent from my iPhone >>> >>> ___ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >>> >> >> >> ___ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190d ac update
The valves were closed. Sent from my iPhone > On Jun 3, 2018, at 11:30 AM, Dan Penoff via Mercedes > wrote: > > Probably, but why didn’t you close the service valves to isolate the car from > the loop? I always do this whenever I check for a vacuum, as that way I know > my gauges and manifold aren’t the source. > > ? > > -D > > >> On Jun 3, 2018, at 12:22 PM, Kaleb C. Striplin via Mercedes >> wrote: >> >> After sitting since yesterday it has lost almost all the vacuum. Come of it >> could be the machine hoses maybe but I would say it is safe to say the car >> has leaks. >> >> Sent from my iPhone >> >> ___ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> >> > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190d ac update
Probably, but why didn’t you close the service valves to isolate the car from the loop? I always do this whenever I check for a vacuum, as that way I know my gauges and manifold aren’t the source. ? -D > On Jun 3, 2018, at 12:22 PM, Kaleb C. Striplin via Mercedes > wrote: > > After sitting since yesterday it has lost almost all the vacuum. Come of it > could be the machine hoses maybe but I would say it is safe to say the car > has leaks. > > Sent from my iPhone > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190d ac update
Time for the dye check / black light routine. Fix the leaks, keep the R12 system... it will "blow cold" much better. On Sun, Jun 3, 2018 at 9:22 AM, Kaleb C. Striplin via Mercedes < mercedes@okiebenz.com> wrote: > After sitting since yesterday it has lost almost all the vacuum. Come of > it could be the machine hoses maybe but I would say it is safe to say the > car has leaks. > > Sent from my iPhone > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] 190d ac update
After sitting since yesterday it has lost almost all the vacuum. Come of it could be the machine hoses maybe but I would say it is safe to say the car has leaks. Sent from my iPhone ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D ac, update
Good news on the 134, I suspect I'm going to go with it in my 190D in the spring. Its not hot enough around here to worry about. I've driven the car 3 summers with no ac at all... The blower switch on my car did the same thing a month ago. I took it apart and flipped the broken flipper over. I had to cut a notch in it but it works fine now... Fred gave me a replacement which I'll hold in reserve... -Curt Date: Sat, 27 Sep 2008 17:54:37 -0500 From: "Kaleb C. Striplin" <[EMAIL PROTECTED]> Subject: [MBZ] 190D ac, update To: mercedes Mailing List Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Well, 2 days later, AC is still working GREAT. Spent a little time today cleaning the car up, and will try and get to buffing it tomorrow. The damn blower switch locked up on me so I took it apart to try and figure it out. I see it has 3 little rocker things on a shaft that has a tab, which prevents the rocker things from going too far. If they break, it goes too far and the switch gets stuck. Well thats what happened. I just put this switch it also, the other one that was in there did the same thing. Dang. Guess I might have to order a new one. -- Kaleb C. Striplin/Claremore, OK 92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL, 87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D, 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D, 72 250C, 69 250, 66 220SEb http://www.okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D ac, update
blower switch locked up on me so I took it apart to try and figure it out. I see it has 3 little rocker things on a shaft that has a tab, which prevents the rocker things from going too far. If they break, it goes too far and the switch gets stuck. Well thats what happened. That's what always happens. It can be fixed, you drill for a pin and glue it in. (I bent a nail or something like that and glued the nail along its length to the plastic body. Been working for years now. -- Jim ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] 190D ac, update
Well, 2 days later, AC is still working GREAT. Spent a little time today cleaning the car up, and will try and get to buffing it tomorrow. The damn blower switch locked up on me so I took it apart to try and figure it out. I see it has 3 little rocker things on a shaft that has a tab, which prevents the rocker things from going too far. If they break, it goes too far and the switch gets stuck. Well thats what happened. I just put this switch it also, the other one that was in there did the same thing. Dang. Guess I might have to order a new one. -- Kaleb C. Striplin/Claremore, OK 92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL, 87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D, 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D, 72 250C, 69 250, 66 220SEb http://www.okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
I will have to check that out. Vacuum seems just fine to me. Probalby a sensor. As for the 134, when I had it going before the last leak, it cooled just fine with 134 even in a 90+ day. I did change out the expansion valve etc also. Tyler Backman wrote: > Have you checked all of the pins on your climate control with a > multimeter per the instructions on > http://userweb.windwireless.net/~jimc/mamerepairs.html? > Some of the instructions are wrong for later model 190Ds, but for > anything pre-87 I think they should be correct. > > Since your heater vale closes unless the dial is all the way to "min" > I would suspect one of the temperature sensors telling the control > unit it is colder than it actually is. Putting it all the way on "min" > overrides the temp sensor input, and shuts the heater off no matter > what. > > Have you checked the vacuum at the heater valve? My 190D was running > the heater valve open while running the AC because of a vacuum leak > which prevented it from closing all the way (full vacuum to the valve > shuts it off). I tested all of the electronics with a multimeter, and > they were all functioning correctly. Since I live near LA where I > basically never need heat, I ran a permanent vacuum line from the pump > to the heater valve, and now the AC works perfectly. If for some > reason it did get cold (which it won't- ever) I could just put it back > the way it was in 10 seconds. I'll probably fix it *properly* before I > drive up to visit family in the colder(er) pacific northwest. > > Why are you using R134a instead of R12? The stock AC systems on 190Ds > are weak enough as it is with R12, I doubt they would ever work well > with R134a, especially in hot/humid climates. My AC system works > really hard to keep the car cool with R12 I had to wire the dual > electric fans to run constantly on the condenser, and I shut off the > AC system when I am stopped in traffic because it stops blowing cold, > and the motor starts warming up. > > Sincerely, > Tyler William H Backman > 1987 190D Turbo Biodiesel > > On Sep 25, 2008, at 4:44 PM, Kaleb C. Striplin wrote: > >> Well, the AC saga continues. I had to have the manifold hoses >> rebuilt, >> installed them yesterday. Pulled a vacuum for 2 hours, then let it it >> sit all night and day till this evening, still holding vacuum at same >> level. Put a little 134 in it, sniffer did not see any leaks. Fully >> charged and it worked of course. Will see how long it holds. >> Before it >> leaked out overnight. That was when I found the leak in the front >> compressor seal. Or so I though. Replaced the compressor, same leak. >> Thats when I found the pinhole in the hose, right by the compressor. >> The other compressor probably was not leaking at all. >> >> I also noticed that after a while of running, the heater valve opens >> back up unless you have the dial all the way to min. Anybody know >> anything about these 201 climate controls? Wonder if its a sensor >> somewhere or the control unit. I also dont seem to get much air out >> of >> the side vents but do out the center just fine. >> -- >> Kaleb C. Striplin/Claremore, OK >> 92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL, >> 87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D, >> 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D, >> 76 300D, 72 250C, 69 250, 66 220SEb >> http://www.okiebenz.com >> > > > ___ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.169 / Virus Database: 270.7.3/1693 - Release Date: 9/26/2008 > 7:35 AM > -- Kaleb C. Striplin/Claremore, OK 92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL, 87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D, 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D, 72 250C, 69 250, 66 220SEb http://www.okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
Well, this thing opens all the way, and you get just about full out out the side vents, while getting cool or somewhat cool are out the center Jim Cathey wrote: >> I also noticed that after a while of running, the heater valve opens >> back up unless you have the dial all the way to min. Anybody know >> anything about these 201 climate controls? Wonder if its a sensor >> somewhere or the control unit. I also dont seem to get much air out of >> the side vents but do out the center just fine. > > They all open the heater up to a greater or lesser degree > if not on MIN, once the interior temperature has been determined > to be stabilized. > > -- Jim > > > ___ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.169 / Virus Database: 270.7.3/1691 - Release Date: 9/25/2008 > 7:23 PM > -- Kaleb C. Striplin/Claremore, OK 92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL, 87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D, 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D, 72 250C, 69 250, 66 220SEb http://www.okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
> instructions on http://userweb.windwireless.net/~jimc/mamerepairs.html? > Some of the instructions are wrong for later model 190Ds, but for > anything pre-87 I think they should be correct. Would love to have any corrections to add to it! -- Jim ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
Have you checked all of the pins on your climate control with a multimeter per the instructions on http://userweb.windwireless.net/~jimc/mamerepairs.html? Some of the instructions are wrong for later model 190Ds, but for anything pre-87 I think they should be correct. Since your heater vale closes unless the dial is all the way to "min" I would suspect one of the temperature sensors telling the control unit it is colder than it actually is. Putting it all the way on "min" overrides the temp sensor input, and shuts the heater off no matter what. Have you checked the vacuum at the heater valve? My 190D was running the heater valve open while running the AC because of a vacuum leak which prevented it from closing all the way (full vacuum to the valve shuts it off). I tested all of the electronics with a multimeter, and they were all functioning correctly. Since I live near LA where I basically never need heat, I ran a permanent vacuum line from the pump to the heater valve, and now the AC works perfectly. If for some reason it did get cold (which it won't- ever) I could just put it back the way it was in 10 seconds. I'll probably fix it *properly* before I drive up to visit family in the colder(er) pacific northwest. Why are you using R134a instead of R12? The stock AC systems on 190Ds are weak enough as it is with R12, I doubt they would ever work well with R134a, especially in hot/humid climates. My AC system works really hard to keep the car cool with R12 I had to wire the dual electric fans to run constantly on the condenser, and I shut off the AC system when I am stopped in traffic because it stops blowing cold, and the motor starts warming up. Sincerely, Tyler William H Backman 1987 190D Turbo Biodiesel On Sep 25, 2008, at 4:44 PM, Kaleb C. Striplin wrote: > Well, the AC saga continues. I had to have the manifold hoses > rebuilt, > installed them yesterday. Pulled a vacuum for 2 hours, then let it it > sit all night and day till this evening, still holding vacuum at same > level. Put a little 134 in it, sniffer did not see any leaks. Fully > charged and it worked of course. Will see how long it holds. > Before it > leaked out overnight. That was when I found the leak in the front > compressor seal. Or so I though. Replaced the compressor, same leak. > Thats when I found the pinhole in the hose, right by the compressor. > The other compressor probably was not leaking at all. > > I also noticed that after a while of running, the heater valve opens > back up unless you have the dial all the way to min. Anybody know > anything about these 201 climate controls? Wonder if its a sensor > somewhere or the control unit. I also dont seem to get much air out > of > the side vents but do out the center just fine. > -- > Kaleb C. Striplin/Claremore, OK > 92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL, > 87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D, > 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D, > 76 300D, 72 250C, 69 250, 66 220SEb > http://www.okiebenz.com > ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D AC
> I also noticed that after a while of running, the heater valve opens > back up unless you have the dial all the way to min. Anybody know > anything about these 201 climate controls? Wonder if its a sensor > somewhere or the control unit. I also dont seem to get much air out of > the side vents but do out the center just fine. They all open the heater up to a greater or lesser degree if not on MIN, once the interior temperature has been determined to be stabilized. -- Jim ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] 190D AC
Well, the AC saga continues. I had to have the manifold hoses rebuilt, installed them yesterday. Pulled a vacuum for 2 hours, then let it it sit all night and day till this evening, still holding vacuum at same level. Put a little 134 in it, sniffer did not see any leaks. Fully charged and it worked of course. Will see how long it holds. Before it leaked out overnight. That was when I found the leak in the front compressor seal. Or so I though. Replaced the compressor, same leak. Thats when I found the pinhole in the hose, right by the compressor. The other compressor probably was not leaking at all. I also noticed that after a while of running, the heater valve opens back up unless you have the dial all the way to min. Anybody know anything about these 201 climate controls? Wonder if its a sensor somewhere or the control unit. I also dont seem to get much air out of the side vents but do out the center just fine. -- Kaleb C. Striplin/Claremore, OK 92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL, 87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D, 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D, 72 250C, 69 250, 66 220SEb http://www.okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D ac
ahhh, ok, I see what I did wrong then. Jim Cathey wrote: >> Measure between wire and compressor case. I am not sure about the 190D >> but >> some compressors use case as ground and only one wire for clutch. Some >> compressors have a pressure switch for other wire or a sensor which >> detects >> if compressor is turning. > > Of the three wires on my 190D compressor, one is to the clutch > (returning via case ground), the other two are its tachometer. > All vitally important for the system as designed. > > -- Jim > > > ___ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > -- Kaleb C. Striplin/Claremore, OK 94 E420, 92 300SD, 92 300E 4Matic, 91 300D, 89 560SEL, 89 260E, 87 300SDL, 86 560SL, 85 380SE 5.0 Euro, 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D, 72 250C, 69 250, 66 220SEb http://www.okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D ac
> Measure between wire and compressor case. I am not sure about the 190D > but > some compressors use case as ground and only one wire for clutch. Some > compressors have a pressure switch for other wire or a sensor which > detects > if compressor is turning. Of the three wires on my 190D compressor, one is to the clutch (returning via case ground), the other two are its tachometer. All vitally important for the system as designed. -- Jim ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 190D ac
Measure between wire and compressor case. I am not sure about the 190D but some compressors use case as ground and only one wire for clutch. Some compressors have a pressure switch for other wire or a sensor which detects if compressor is turning. Trampas -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kaleb C. Striplin Sent: Sunday, June 22, 2008 9:09 PM To: mercedes Mailing List Subject: [MBZ] 190D ac OK, screwing around with the AC a little this evening on the 190D. Think I have some mice wiring issues still to work out on that. But, shouldnt applying positive power to the red wire and negative to one of the other 2 wires kick the clutch in when hooked directly to the compressor? Tried it on this one, would not kick in, tried it on one I have in my garage, same thing, tried it on another car that has a good compressor would not kick in either. Seems like I have run into this before, will not kick in when testing but installed on the car works. Wierd. Is there some other way to test the clutch with the compressor off the car? Measuring ohms across any of the pins mean anything? I tried that but showed open as far as I can tell. The compressor on the car is likely bad anyway because it doesnt seem to turn smooth at all. Also tried measuring resistance from the ac compressor plug whatever pin to the matching pin on the klima relay side. I got no resistance to I believe the blue/white wire, tried the red/black(maybe blue) wire on compressor end to the klima end and it showed open. Seem I have a problem there maybe. The other wire I couldnt get to show anything but open either. Need to check that further. Untaped all the wiring harness I spliced together before and I did miss one wire, but it doesnt appear to be for the compressor anyway. As far as I can trace the compressor wires they seem fine so Im not sure why Im showing open on some of the wires. -- Kaleb C. Striplin/Claremore, OK 94 E420, 92 300SD, 92 300E 4Matic, 91 300D, 89 560SEL, 89 260E, 87 300SDL, 86 560SL, 85 380SE 5.0 Euro, 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D, 72 250C, 69 250, 66 220SEb http://www.okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] 190D ac
OK, screwing around with the AC a little this evening on the 190D. Think I have some mice wiring issues still to work out on that. But, shouldnt applying positive power to the red wire and negative to one of the other 2 wires kick the clutch in when hooked directly to the compressor? Tried it on this one, would not kick in, tried it on one I have in my garage, same thing, tried it on another car that has a good compressor would not kick in either. Seems like I have run into this before, will not kick in when testing but installed on the car works. Wierd. Is there some other way to test the clutch with the compressor off the car? Measuring ohms across any of the pins mean anything? I tried that but showed open as far as I can tell. The compressor on the car is likely bad anyway because it doesnt seem to turn smooth at all. Also tried measuring resistance from the ac compressor plug whatever pin to the matching pin on the klima relay side. I got no resistance to I believe the blue/white wire, tried the red/black(maybe blue) wire on compressor end to the klima end and it showed open. Seem I have a problem there maybe. The other wire I couldnt get to show anything but open either. Need to check that further. Untaped all the wiring harness I spliced together before and I did miss one wire, but it doesnt appear to be for the compressor anyway. As far as I can trace the compressor wires they seem fine so Im not sure why Im showing open on some of the wires. -- Kaleb C. Striplin/Claremore, OK 94 E420, 92 300SD, 92 300E 4Matic, 91 300D, 89 560SEL, 89 260E, 87 300SDL, 86 560SL, 85 380SE 5.0 Euro, 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D, 76 300D, 72 250C, 69 250, 66 220SEb http://www.okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
