Re: [MBZ] Glow Plug Question

Dan did, and he has a intermittent dead one already. On a 60x, then only time I would replace all is if I rebuilt the engine or put on a new head. On a 60x, if you take off the intake, then yes, change all, keep the good for spares. Otherwise, change as needed. You probably had at least

Re: [MBZ] Glow Plug Question

<mercedes@okiebenz.com> To: Mercedes Discussion List <mercedes@okiebenz.com> Cc: Meade Dillon <dillonm...@gmail.com> Sent: Sunday, May 28, 2017 9:13 AM Subject: Re: [MBZ] Glow Plug Question #3 is in the process of going bad, and after you replace it the light will behave as nor

Re: [MBZ] Glow Plug Question

I'm sorry Dave I am afraid I can't do that. Sent from my iPhone > On May 29, 2017, at 8:48 AM, Floyd Thursby via Mercedes > wrote: > > It's a fault in the AE-35 unit. You need to get it out and do a bench test > then replace it to see if it actually fails. > > The

Re: [MBZ] Glow Plug Question

It's a fault in the AE-35 unit. You need to get it out and do a bench test then replace it to see if it actually fails. The glow plug light has never been known to have a fault, it is all human error. --FT On 5/28/17 9:13 AM, Meade Dillon via Mercedes wrote: #3 is in the process of going

Re: [MBZ] Glow Plug Question

You already answered your question. Change #3 GP. Dan--- via Mercedes May 28, 2017 at 8:00 AM So a while back I get a glow plug light while I'm driving down the road, after about a minute it goes out. As I understand the diagnostics of the GP relay, that

Re: [MBZ] Glow Plug Question

As far as I know the ones I replaced were all good. As a consideration of “while you’re there you might as well do this” when I replaced the injectors I pulled the intake manifold and took advantage of the accessibility to ream out the holes and replace all of the glow plugs. It’s more of a

Re: [MBZ] Glow Plug Question

Strange one I already failing. Did you have any good ones from when they were all replaced? I would have just used one of those. Sent from my iPhone > On May 28, 2017, at 8:41 AM, Dan Penoff via Mercedes > wrote: > > They were all replaced less than a year ago when I

Re: [MBZ] Glow Plug Question

That’s what the FAA does. They have a scheduled maintenance window for all of the lamps in a given facility, like a VOR, and they take it down, go in and replace everything, working or not. That’s why we have the best navigational infrastructure in the world. Those guys will lock out/tag out

Re: [MBZ] Glow Plug Question

They were all replaced less than a year ago when I did the injectors. -D > On May 28, 2017, at 9:06 AM, Kaleb C. Striplin via Mercedes > wrote: > > Unless it's not a car you are keeping you would generally replace all of them > at the same time, then keep any good

Re: [MBZ] Glow Plug Question

#3 is in the process of going bad, and after you replace it the light will behave as normal (until another plug also goes bad, thus the wisdom of Kaleb). At one of my last Navy duty stations, the building maintenance folks would replace all the fluorescent bulbs in a room at once, on a schedule

Re: [MBZ] Glow Plug Question

Unless it's not a car you are keeping you would generally replace all of them at the same time, then keep any good ones as spares. It could be it tests good when cold but is actually bad? Sent from my iPhone > On May 28, 2017, at 8:00 AM, Dan--- via Mercedes > wrote: >

[MBZ] Glow Plug Question

So a while back I get a glow plug light while I'm driving down the road, after about a minute it goes out. As I understand the diagnostics of the GP relay, that probably means I have an open GP. I test the GPs from the connector at the GP relay and find an open circuit on #3. OK, simple

Re: [MBZ] Glow Plug Question / Weirdness

I'm sure the issue will resurface. I'll snag a new glow plug on my next order from an aftermarket supplier. That way I'll have one handy when I feel the need for some serious car repair self abuse. -D Sent from my iPad > On Mar 22, 2017, at 8:31 AM, Meade Dillon via Mercedes >

Re: [MBZ] Glow Plug Question / Weirdness

The diagnostic circuit is not perfect, so it doesn't always tell you that there is a problem. The glow plug is still bad. - Max Charleston SC On Wed, Mar 22, 2017 at 6:28 AM, Dan Penoff via Mercedes < mercedes@okiebenz.com> wrote: > Worked normally this morning. Ambient around 60F,

Re: [MBZ] Glow Plug Question / Weirdness

Worked normally this morning. Ambient around 60F, took 25-30 seconds to glow, no glow lights on the 25 minute drive to work. Hmmm. -D > On Mar 22, 2017, at 5:23 AM, Dan Penoff via Mercedes > wrote: > > I did not and it does not have a fuse for the GP relay, only a

Re: [MBZ] Glow Plug Question / Weirdness

I did not and it does not have a fuse for the GP relay, only a strip fuse for the ACC blower. Based on the initial diagnostics it sounds like the #3 glow plug has failed. The symptoms are pretty much what the manual describes - little or no glow plug light on startup, glow plug light coming

Re: [MBZ] Glow Plug Question / Weirdness

Did you swap out/in the GP relay and/or fuse (if it has them)? On Tue, Mar 21, 2017 at 10:32 PM, Curley McLain via Mercedes < mercedes@okiebenz.com> wrote: > Yeah, I bought one or 2 sets of Beru, but normally just use the Bosch. I > generally replace only one at a time because the MTBF is not

Re: [MBZ] Glow Plug Question / Weirdness

Yeah, I bought one or 2 sets of Beru, but normally just use the Bosch. I generally replace only one at a time because the MTBF is not a narrow band. Some last 20 years, some last 1. The exception in on an OM603 if I am going to take off the manifold and there are at least 2 bad on a car I

Re: [MBZ] Glow Plug Question / Weirdness

On the OM603 and earlier engines, I think Bosch are the best choice, that's what I just put in my '87 wagon. Beru is preferred for the OM606 engines because they seem to be made of sturdier stuff (they publish a maximum torque that can be applied when removing the plugs, haven't found that for

Re: [MBZ] Glow Plug Question / Weirdness

Didn't think the compressor was running with the high vent temperatures, so not KLIMA if you have compressor engaging. Did some of your refrigerant leak out? Maybe the car just wants some attention? - Max Charleston SC On Tue, Mar 21, 2017 at 7:29 PM, Dan Penoff via Mercedes <

Re: [MBZ] Glow Plug Question / Weirdness

Interesting about the Beru GPs, too. They’re tough to find and about 3x the cost of the Bosch. That’s what I’ll replace it with. The Bosch is about a year old, I replaced them last May. -D > On Mar 21, 2017, at 8:22 PM, Curley McLain via Mercedes > wrote: > > #3 is

Re: [MBZ] Glow Plug Question / Weirdness

#3 is not the worst. 1 and 6 are easiest. Dan Penoff via Mercedes March 21, 2017 at 7:04 PM Did a quick resistance check: 1 - 0.7 Ω 2 - 0.7 Ω 3 - 25 Ω 4 - 0.7 Ω 5 - 0.7 Ω 6 - 0.7 Ω So based on this I assume I have a bad #3 glow plug. Of course, as it’s

Re: [MBZ] Glow Plug Question / Weirdness

Did a quick resistance check: 1 - 0.7 Ω 2 - 0.7 Ω 3 - 25 Ω 4 - 0.7 Ω 5 - 0.7 Ω 6 - 0.7 Ω So based on this I assume I have a bad #3 glow plug. Of course, as it’s probably the most difficult one to get to… I may decide to live with this for a while, since cold weather starting isn’t an issue

Re: [MBZ] Glow Plug Question / Weirdness

And the tach is working. -D > On Mar 21, 2017, at 7:29 PM, Dan Penoff wrote: > > I wondered about the KLIMA, but since I’m getting compressor operation, what > else would it be affecting? > > Thanks, > > -D > >> On Mar 21, 2017, at 6:41 PM, Max Dillon via Mercedes

Re: [MBZ] Glow Plug Question / Weirdness

I put a set of Bosch GPs in it. Can I check resistances from the GP relay like you can on OM617s? Thanks, -D > On Mar 21, 2017, at 6:24 PM, Curley McLain via Mercedes > wrote: > > the GP light is an indication that you have GPs. They are not related to > mileage.

Re: [MBZ] Glow Plug Question / Weirdness

I wondered about the KLIMA, but since I’m getting compressor operation, what else would it be affecting? Thanks, -D > On Mar 21, 2017, at 6:41 PM, Max Dillon via Mercedes > wrote: > > Not related. HVAC sounds like KLIMA relay or push button unit. If your >

Re: [MBZ] Glow Plug Question / Weirdness

Not related. HVAC sounds like KLIMA relay or push button unit. If your tachometer also died, then the OVP relay would be suspect. -- Max Dillon Charleston SC '87 300TD '95 E300 On March 21, 2017 5:55:29 PM EDT, Dan Penoff via Mercedes wrote: >The 350SDL started acting

Re: [MBZ] Glow Plug Question / Weirdness

the GP light is an indication that you have GPs. They are not related to mileage. Beru have the reputation to last longer, but that is no guarantee. Dan Penoff via Mercedes March 21, 2017 at 4:55 PM The 350SDL started acting weird this morning…. No glow plug

[MBZ] Glow Plug Question / Weirdness

The 350SDL started acting weird this morning…. No glow plug light when I went to start it up, or if it did come on it was only for a few seconds and I missed it. Ambient was maybe 50F, possibly a little warmer. About 5-10 minutes later as I’m driving down the street, the glow plug light

Re: [MBZ] Glow plug question

Hans Neureiter wrote: Touching the leads together reads 0.00 Ohms. Good. *smiles* Still doesn't mean a reading of 0.9 isn't actually 0.8 ohms. If it's not a 4-lead milliohm meter, then it's risky to trust it for such measurements. Do Glow Plugs deteriotate or just go on/off like a light

Re: [MBZ] Glow plug question

Where in South Texas? I lived in Harlingen for a year, 1960-61. Wilton - Original Message - From: Hans Neureiter diese...@gmail.com To: Mercedes Discussion List mercedes@okiebenz.com Sent: Monday, April 02, 2012 12:25 AM Subject: Re: [MBZ] Glow plug question Question comes from

Re: [MBZ] Glow plug question

: Monday, April 02, 2012 12:25 AM Subject: Re: [MBZ] Glow plug question Question comes from some one's post some weeks ago. He replaced all GP's and had readings from good to bad, like 0.9 to 90+ Ohm I know I have to replace # UNO.(DOS, TRES, QUATRO, CHINCO,?) A PITA to get to and a small lump

Re: [MBZ] Glow plug question

@okiebenz.com Sent: Monday, April 02, 2012 12:25 AM Subject: Re: [MBZ] Glow plug question Question comes from some one's post some weeks ago. He replaced all GP's and had readings from good to bad, like 0.9 to 90+ Ohm I know I have to replace # UNO.(DOS, TRES, QUATRO, CHINCO,?) A PITA to get

Re: [MBZ] Glow plug question

To: Mercedes Discussion List mercedes@okiebenz.com Sent: Monday, April 02, 2012 1:16 PM Subject: Re: [MBZ] Glow plug question West of Houston (Katy) On Mon, Apr 2, 2012 at 9:31 AM, WILTON wilt...@nc.rr.com wrote: Where in South Texas? I lived in Harlingen for a year, 1960-61. Wilton

Re: [MBZ] Glow plug question

Plus, you are measuring the resistance of all the connections in the path, including the meter to ground side. I had an ammeter for testing glow plugs, till I permanently wired it into the circuit in the '92 to chase down an intermittant current drian when off. Still don't know where the drain is,

[MBZ] Glow plug question

On my OM 517 engine I tested the glow plugs. No preglow indicater light. The Manual calls for 8 - 15 A per plug. I measured the resistance at the 6-pin connector: #1 indicates open, #2 - 5 measure 95 Ohm each 13V / 95 Ohm = 0.14 A (1/10th of spec) What am I doing wrong? -- Hans Neureiter, Katy,

Re: [MBZ] Glow plug question

On Apr 1, 2012, at 10:01 AM, Hans Neureiter diese...@gmail.com wrote: I measured the resistance at the 6-pin connector: #1 indicates open, #2 - 5 measure 95 Ohm each 13V / 95 Ohm = 0.14 A (1/10th of spec) What am I doing wrong? Your meter is not an autoranging meter and it is on the wrong

Re: [MBZ] Glow plug question

The resistance cold is not the same as the resistance hot. But 95 Ohm is too high for a cold plug, should be 1 ohm IIRC, as they heat up the resistance increases. If you had an ammeter in line with the plug you'd see an initial heavy current draw that drops off as the plug heats up. Allan

Re: [MBZ] Glow plug question

Some problem with the accuracy of the meter. You found out what you want to know. #1 is bad. the glow light will NOT come on when #1 is out. The relay compares the current in #1 to the other 3 or 4 or 5 GPs. When #1 is out, the glow light is out. Replace #1 and be happy. On my OM 517

Re: [MBZ] Glow plug question

Hans Neureiter wrote: On my OM 517 engine A _5_17? I'm not familiar with that one, but on a OM617... *smiles* I tested the glow plugs. No preglow indicater light. The Manual calls for 8 - 15 A per plug. So here I go again... My preferred way to test the glow plug system is with an 30 A

Re: [MBZ] Glow plug question

Typo. Thanks for the smiles. What I gather, checking for resisstance is meaningless other than continuity or open circuit. Thanks all. Apr 1, 2012 at 3:45 PM, Fmiser fmi...@gmail.com wrote: Hans Neureiter wrote: On my OM 517 engine A _5_17? I'm not familiar with that one, but on a

Re: [MBZ] Glow plug question

You can compensate for resistance error on a meter by measuring new or known good GPs. If it can detect a difference of half an ohm, you are good. I have a 25 yr old radio junk analog meter that will read about 1.5 ohms on a good one, but it is sensitive enough to pick up a half ohm. So

Re: [MBZ] Glow plug question

Hans, resistance test is a fair test if you have a meter capable of measuring values if less than one ohm. Phillip's current measurement test is the best. -- Max Dillon Charleston SC '95 E300, '87 300TD ___ ___ http://www.okiebenz.com For

Re: [MBZ] Glow plug question

I use a Fluke MM. Setting it on auto or scale, same results. 95 O = 0.095 KO, and it reads 0.01 Ohm. On second thought, the measurement of resistance may not be so un-significant. I am pretty much aware of the laws of physics that rule our world, including Ohm’s law. Cast in “Stone” they are;

Re: [MBZ] Glow plug question

Either you are correct, and the glow plugs are indeed bad (I've one or two that read higher resistance than they should have been) or your meter needs calibrating. What does the meter read when you short the two probes together? On the other hand, if you don't need all new glow plugs now, you

Re: [MBZ] Glow plug question

Touching the leads together reads 0.00 Ohms. Meter is good. And it is not the idiot reading it. Plugs have been there for the same time under the same conditons. Question to the ever knowing forum is: Do Glow Plugs deteriotate or just go on/off like a light bulb? I have nothing to compare, exept

Re: [MBZ] Glow plug question

Question comes from some one's post some weeks ago. He replaced all GP's and had readings from good to bad, like 0.9 to 90+ Ohm I know I have to replace # UNO.(DOS, TRES, QUATRO, CHINCO,?) A PITA to get to and a small lump of denero. God bless South Texas. It hardly ever snows. All you snowmobile

Re: [MBZ] Glow plug question

Hans Neureiter wrote: On second thought, the measurement of resistance may not be so un-significant. Correct. We do want to know the resistance, and by measuring amps or ohms can get us there. But _I_ prefer knowing the resistance of the glow plug when is glowing - like it would when I'm

[MBZ] Glow Plug Question

 Hi All, Is it possible for glow plugs to ohm out okay and still be bad? Perhaps shorted by carbon or something? Rick ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list

Re: [MBZ] Glow Plug Question

Yes, (rare) and it is also possible they are not getting juice from the relay/bad fuse. Hi All, Is it possible for glow plugs to ohm out okay and still be bad? Perhaps shorted by carbon or something? Rick ___ http://www.okiebenz.com For new and used

Re: [MBZ] Glow Plug Question

Rick Knoble wrote: Is it possible for glow plugs to ohm out okay and still be bad? Perhaps shorted by carbon or something? Yes. But a typical ohm meter is not very accurate at those ranges. Much better is to measure the current flow. I use an old-fashioned automotive ammeter. The ones that

Re: [MBZ] Glow Plug Question

If the plug is bad, the current will be less. Or more! I've seen that too. It is very rare for the plug to ohm out right yet not work right, due to the way it's constructed. It's either open-circuit, or possibly partially shorted inside so that the heat doesn't go all the way out at the tip.

[MBZ] Glow plug question for the experts

Bosch 0 250 201 001 is what fits in most of the diesels with small pencil type glow plugs. It has a 5 digit application number of 80006. Bosch 0 250 201 039 also carries the 80006 designation. Can anyone tell me what is the difference, if any? TIA Loren 81 240D 86 and 87 SDLs et al

Re: [MBZ] Glow plug question for the experts

On Thursday, February 9, 2006, at 08:27 PM, Loren Faeth wrote: Bosch 0 250 201 001 is what fits in most of the diesels with small pencil type glow plugs. It has a 5 digit application number of 80006. Bosch 0 250 201 039 also carries the 80006 designation. Can anyone tell me what is the