I hear you regarding that relay position - it's very hard to get good access on my 124 as well. 'Twas not I suggesting the Gearwrench - that thanks goes to ?
-Max -----Original Message----- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Rich Thomas Sent: Tuesday, February 02, 2010 5:56 PM To: Mercedes Discussion List Subject: Re: [MBZ] One bad glow plug spoils the whole bunch? OK I replaced the offending glow plug (thank you to the suggester of the Gearwrench -- made the job much easier), car still did not want to start. So I CHANGED THE FUSE (do you know the fuse is permanently charged with 12V, and if they had moved the relay about a half inch over a screwdriver would go on that inner screw really really easy, and if you use a little ratchet driver with a philips bit you wouldn't make big sparks and try to weld it to the car? You knew that right? Maybe on next year's 126 you can make that minor change....) and it started up nicely. The old fuse looked fine, tested fine, but there you go. Maybe a few sparks cleared out the tubes or something. That plug was a bugger to get out, more or less, the gearwrench helped a lot though I dropped it twice -- I have a nice cut on my left hand from that injector connector bracket that was placed Just So, to catch the back of your hand when you change the back glow plug. I guess those German engineers are getting back at us. --R Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC, 53310 wrote: > Rich, our cars must have been plotting. This a.m. my wagon refused to > start; no glow timer light. She'd been idling very rough during cold > idle for the first 30 seconds or so over the last month, and so I was > suspicious of the glow plugs. I'd tested resistance a couple weeks ago > but all seemed OK. Tested again this a.m., all plugs tested fine and > fuse looked good. Still no glow light, no start. Extended cranking of > the engine wouldn't even get one cylinder to light off. Put the battery > on the charger and took a closer look at the fuse, and sure enough it > had a hair-line crack. > > Check my spare fuses - 30 Amp only - darn! > > Used a piece of 14 gauge wire to jumper the fuse screws, and she started > right up. Will be attempting to purchase two fuses locally after work > today... > > I'm still trying to figure out the rough cold idle; I may have to rig > the in-line ammeter and test the plugs that way. > > -Max > > -----Original Message----- > From: mercedes-boun...@okiebenz.com > [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Rich Thomas > Sent: Sunday, January 31, 2010 3:00 PM > To: Mercedes Discussion List > Subject: [MBZ] One bad glow plug spoils the whole bunch? > > The SD has been reluctant to start recently (in the "cold" weather we > have here) so I just checked on it. Looks like the rearmost glowplug > (#5?) is bad, I get open (OL) reading on the ohmmeter while the others > are in the 0.6ohm range. The glow plug fuse and relay are OK, getting > 12V across the fuse and at the relay pins until the relay clicks off. > None of the glow plugs seem to be warming up though (according to my > calibrated finger). Can that one bad glow plug cause the others not to > heat up? > > I don't have a amp clamp, but if there is 12V at the plug wires at the > relay it should be getting juice to all of them? > > I'll go out to make sure there is 12V at each plug connector to make > sure the connector didn't go bad or something. > > That last plug looks like a bugger to get out too. > > --R > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com To search list archives > http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
