W110 W111 W112 Sedan, BENZ AID - COMMON QUESTIONS AND ANSWERS

190E 2.3 ecu temp sensor

I am having trouble with cold running and now with running period. Starts fine and stumbles until warm. Changed ovp with new one-better but not much, changed O2 sensor with NGK model-initially better but now appears lean when running above 1500rpm-stumbling. O2 appears to be working. Don't have duty function meter. Stumped. Coding but do not have code reader. Going to get one. Ecu temp sensor resistance supposed to be 250 hot to 2000 cold but that does not jive with charts I have seen. 260 to 300 hot. Very inconsistent cold.

Chassis Model Number

W201

Forums

Gas Engine Specific Aid

Heater Blower

1982 300TD
replaced brushes on the blower motor, bench tested worked fine. Installed in car, checked fuse ok, but no blower running. checked voltage at the connection no voltage. My question is were to go next. Also when in the air conditioning mode compressor is running. PLEASE HELP.

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

1983 300D oil on piston

hopefully this isn't a double post.

I have apparently 184k miles on a recently bought 300D. It pours out bluish smoke at start up, maybe some whithish mixed in but it's hard to tell.

It bellows out smoke on freeway at full throttle but not really any noticable smoke at constant speed. When i get off the freeway after ~30 miles and idle for a very short time (several seconds) it leaves a smoke trail as seen in rearview mirror and headlights.

Forums

Diesel Engine Specific Aid

1983 300d rough idle, no power

I have a 1983 300d with 155k miles on the engine. I have a rough idle issue and no power on take off. slow as a old dog. I have replaced all diesel filters. in tank screen also. I replaced motor mounts and shocks. performed diesel purge, got lil better, but still same issue. Performed valve adjustment, checked cam lobes, ok. performed cold compression test, found 410 to 405 on 1,2,3,4 and 5 cylinders. replaced glow plugs and relay.checked turbo alda, correct and functioning. checked for blockage, found clean and clear. I really dont know what else can be causing this issue. HELP!

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

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