Re: [MBZ] W108 heater blower motor - accessible through cowl vent channels?
Thanks Jaime, Dan, and Don for your responses. I'll take a crack at it. I guess I should have bought those W108 cowl filter inserts when they were on sale from the Classic Centre a couple of months ago! I'll be spending a few days on the W108 anyway; ordered a new fuel tank from the Classic Centre (that's a BIG box!) and will be swapping that in with new fuel lines, filter, sender, etc. Dan, you mentioned doing this proactively in a W115. Did you access the fan similarly, by removing the cowl grille? I also have a 115 that I'd like to treat before it fails. I REALLY hope that a gentle push and a generous serving of ATF will save the day, but I fear I'll be digging out the heater box etc instead. D. On Thu, Aug 4, 2022, OK Don wrote: On the W115, I opened up the front center speaker hole to get the blower motor out, I didn't cut the firewall. That was the second one. I followed the manual to replace the first one - took over twice as long. On Thu, Aug 4, 2022, Dan Penoff wrote: What Jaime said. > I?ve done it in a W114, and it?s nearly as bad as the W108. Not something > you want to start unless you?ve got a lot of time to spend on it. I have a > scar on the back of my right hand from when I did the W114. > One other thing is that if you can determine that the motor is still > working but seized or not turning well (there are bushings in it that > typically fail) you can take some of the white 3mm vacuum tubing, the stuff > that?s used throughout every vintage Mercedes engine compartment, and use > it like a straw to draw some ATF into it. Thread it down through the cowl > opening to the back of the motor and let the ATF flow out into the bushing. > It?s messy, but goes a long way to lube the bushing and keep the motor > turning. I?ve done this on every W114/W108 I?ve owned to make sure the fan > motor is lubed up. > -D > > On Aug 4, 2022, at 2:14 PM, Jaime Kopchinski via Mercedes < > mercedes@okiebenz.com> wrote: > > You can definitely reach the top of the blower to clear out debris and see > if it turns by removing the cowl. Its a bit of a reach, but its possible. > > Replacement requires removal of the heater box completely. Its not quite > as horrible as the internet makes it out to be, but it is a time consuming > job and care must be taken not to break too many things. > > Jaime > > > On Thu, Aug 4, 2022 at 2:06 PM David Bruckmann via Mercedes < > mercedes@okiebenz.com> wrote: > >> Good afternoon, >> >> My '72 280SEL 4.5 has a dead heater blower motor. It was set to "low" and >> when I started the car several months ago, electrical smoke emerged from >> the area above the motor that contains the filters. >> >> My question: I know that people literally cut through the firewall to >> replace the blower in a 115. Is the 108 as bad, or will I be able to >> actually reach the fan itself through the air intakes on the cowl to see > if >> it at least turns. I don't think I can REMOVE the motor that way, but it >> would be nice to see if I can at least check whether the fan is seized, >> maybe even put a few drops of ATF on the bearings. >> >> Here's a video (from quite a sensible man, in California, with numerous >> 108-oriented videos) covering the replacement of the cabin air filters >> under the cowl. In part of the video, he shows the insides of the cowl >> area. >> >> Here's the URL >> >> https://youtu.be/55U4y4KqmAE >> >> Thanks for any advice, >> >> D. ___ 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] W108 heater blower motor - accessible through cowl vent channels?
On the W115, I opened up the front center speaker hole to get the blower motor out, I didn't cut the firewall. That was the second one. I followed the manual to replace the first one - took over twice as long. On Thu, Aug 4, 2022 at 1:06 PM David Bruckmann via Mercedes < mercedes@okiebenz.com> wrote: > Good afternoon, > > My '72 280SEL 4.5 has a dead heater blower motor. It was set to "low" and > when I started the car several months ago, electrical smoke emerged from > the area above the motor that contains the filters. > > My question: I know that people literally cut through the firewall to > replace the blower in a 115. Is the 108 as bad, or will I be able to > actually reach the fan itself through the air intakes on the cowl to see if > it at least turns. I don't think I can REMOVE the motor that way, but it > would be nice to see if I can at least check whether the fan is seized, > maybe even put a few drops of ATF on the bearings. > > Here's a video (from quite a sensible man, in California, with numerous > 108-oriented videos) covering the replacement of the cabin air filters > under the cowl. In part of the video, he shows the insides of the cowl > area. > > Here's the URL > > https://youtu.be/55U4y4KqmAE > > Thanks for any advice, > > D. > ___ > 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 "Quality of life is inversely proportional to the amount of clothing you are wearing." "Whenever you find yourself on the side of the majority, it is time to pause and reflect." Mark Twain “Basic research is what I’m doing when I don’t know what I am doing.” Wernher Von Braun 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
Re: [MBZ] W108 heater blower motor - accessible through cowl vent channels?
What Jaime said. I’ve done it in a W114, and it’s nearly as bad as the W108. Not something you want to start unless you’ve got a lot of time to spend on it. I have a scar on the back of my right hand from when I did the W114. One other thing is that if you can determine that the motor is still working but seized or not turning well (there are bushings in it that typically fail) you can take some of the white 3mm vacuum tubing, the stuff that’s used throughout every vintage Mercedes engine compartment, and use it like a straw to draw some ATF into it. Thread it down through the cowl opening to the back of the motor and let the ATF flow out into the bushing. It’s messy, but goes a long way to lube the bushing and keep the motor turning. I’ve done this on every W114/W108 I’ve owned to make sure the fan motor is lubed up. -D > On Aug 4, 2022, at 2:14 PM, Jaime Kopchinski via Mercedes > wrote: > > You can definitely reach the top of the blower to clear out debris and see > if it turns by removing the cowl. Its a bit of a reach, but its possible. > > Replacement requires removal of the heater box completely. Its not quite > as horrible as the internet makes it out to be, but it is a time consuming > job and care must be taken not to break too many things. > > Jaime > > > On Thu, Aug 4, 2022 at 2:06 PM David Bruckmann via Mercedes < > mercedes@okiebenz.com> wrote: > >> Good afternoon, >> >> My '72 280SEL 4.5 has a dead heater blower motor. It was set to "low" and >> when I started the car several months ago, electrical smoke emerged from >> the area above the motor that contains the filters. >> >> My question: I know that people literally cut through the firewall to >> replace the blower in a 115. Is the 108 as bad, or will I be able to >> actually reach the fan itself through the air intakes on the cowl to see if >> it at least turns. I don't think I can REMOVE the motor that way, but it >> would be nice to see if I can at least check whether the fan is seized, >> maybe even put a few drops of ATF on the bearings. >> >> Here's a video (from quite a sensible man, in California, with numerous >> 108-oriented videos) covering the replacement of the cabin air filters >> under the cowl. In part of the video, he shows the insides of the cowl >> area. >> >> Here's the URL >> >> https://youtu.be/55U4y4KqmAE >> >> Thanks for any advice, >> >> D. >> ___ >> 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 >> >> > > -- > Jaime Kopchinski > http://www.jaimekop.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] W108 heater blower motor - accessible through cowl vent channels?
You can definitely reach the top of the blower to clear out debris and see if it turns by removing the cowl. Its a bit of a reach, but its possible. Replacement requires removal of the heater box completely. Its not quite as horrible as the internet makes it out to be, but it is a time consuming job and care must be taken not to break too many things. Jaime On Thu, Aug 4, 2022 at 2:06 PM David Bruckmann via Mercedes < mercedes@okiebenz.com> wrote: > Good afternoon, > > My '72 280SEL 4.5 has a dead heater blower motor. It was set to "low" and > when I started the car several months ago, electrical smoke emerged from > the area above the motor that contains the filters. > > My question: I know that people literally cut through the firewall to > replace the blower in a 115. Is the 108 as bad, or will I be able to > actually reach the fan itself through the air intakes on the cowl to see if > it at least turns. I don't think I can REMOVE the motor that way, but it > would be nice to see if I can at least check whether the fan is seized, > maybe even put a few drops of ATF on the bearings. > > Here's a video (from quite a sensible man, in California, with numerous > 108-oriented videos) covering the replacement of the cabin air filters > under the cowl. In part of the video, he shows the insides of the cowl > area. > > Here's the URL > > https://youtu.be/55U4y4KqmAE > > Thanks for any advice, > > D. > ___ > 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 > > -- Jaime Kopchinski http://www.jaimekop.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] W108 heater blower motor - accessible through cowl vent channels?
Good afternoon, My '72 280SEL 4.5 has a dead heater blower motor. It was set to "low" and when I started the car several months ago, electrical smoke emerged from the area above the motor that contains the filters. My question: I know that people literally cut through the firewall to replace the blower in a 115. Is the 108 as bad, or will I be able to actually reach the fan itself through the air intakes on the cowl to see if it at least turns. I don't think I can REMOVE the motor that way, but it would be nice to see if I can at least check whether the fan is seized, maybe even put a few drops of ATF on the bearings. Here's a video (from quite a sensible man, in California, with numerous 108-oriented videos) covering the replacement of the cabin air filters under the cowl. In part of the video, he shows the insides of the cowl area. Here's the URL https://youtu.be/55U4y4KqmAE Thanks for any advice, D. ___ 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
