PeachParts Mercedes-Benz Forum - View Single Post

F18 · #17 01-19-2009, 09:42 PM

Quote:

Originally Posted by madigral

Hello I have been lurking for some time now. I have a 1997 with the OM606. I have had other Mercedes diesels in the past. The car has 110K on the ticker. On days below zero it bucks and snorts and smokes like a detroit diesel. At this same time it will not rev past 2 grand. All fuel lines have been replaced and the injectors are new. Glow plugs are all new and read approximately 1.6 ohms each. A few minutes into this event it will start to act normal. I am at a loss as to why but it did set a CEL last time it did this. I am not sure if this was due to an undervoltage condition to get it to start. It acts like there is air somewhere that is being purged, but I am thinking EGR for some reason. I have cleaned the intake, flaps, and have a new switchover valve. Any thoughts from the group.

Personally I don't think you are having an out of ordinary experience starting your 606 or any other diesel at Zero or negative degrees. It may have stumbled....but it did start! And after a few minutes it ran fine. You need to figure in windchill temp if parked outside......and plug in the block heater when parked outside in the wind at thoughs temps. The longest injection line is on the injector for cylinder 6 near the fire wall and that is probably the one that is effected the most by the slowed delivery of gelled fuel.
I travel and ski the northern mountains of New England with my 98 E300 with temps dropping below zero at night with windchills to -20 or so. If I forget to plug it in overnight it will always start on the first try but not necessarily on all cylinders and it takes a few minutes to get all the juices flowing. If I pull away before it has a chance for the engine to fire on all cylinders it is in limp mode. The glow plugs function fine with no problems and there would be no CEL for gelled fuel and a super cooled engine.