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#1
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'88 300ce engine dies while idling
Hi all,
I have a 88 300ce with about 100k on it. Recently the car started having problems starting as well as maintaining an idle. I had the car die on me in stopped traffic as well as in the mornings. Here is where I'm at: It has trouble starting, engine runs for a couple of seconds at most, then dies. It runs and drives however, when stopped, the idle descends slowly until it dies. By putting the car in neutral and giving it gas, this seems to fix the problem temporarily. It is not an ambient temperature problem, I've had trouble starting in warm and cold weather. It is not the spark-plugs, I just replaced them with Bosch Platinum 2 Plugs. That being said (and after researching a tiny bit), I've narrowed it down to the fuel pump relay, fuel pump, fuel filter, oxygen sensor, engine coolant temperature (ECT) sensor. Please feel free to comment on what you believe the problem is, and if you've remedied this before. Thanks, Paul |
#2
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You might try searching that type of problem.
The most common problems that cause that problem are....the idle valve itself, the idle contact switch, the de-cel shut-off switch, the air flow position sensor, & the hall-effect speed sensor.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#3
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Thanks M.B.DOC I would like to know where is located the hall effect sensor and how to test it?
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Keep us posted especially if your problem is solved Present cars: My car: E-class 420CDI, 2008, W211, V8, 180 000km Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 345 000km Son's one: GLK class, 220CDI, 2009, W204 Sold: E-class 260E, 1988, W124, Wonderfull car sold after 489 000 kilometres of reliable services (engine M103, clutch, brake system and 5 speed manual gear box all original). Sold: E-class, 320CDI, W210, 2000, 225 000km |
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