W126, BENZ AID - COMMON QUESTIONS AND ANSWERS
1991 Runs rough after 30 sec
n/a1991 300D.
Starts great. After 30 sec idles rough. Believe the fuel injector is being signalled that the engine is above 60 C when it is not . Where is this temp sensor located.
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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.
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unknown part of the fuel system
Hello Kent,
First,I want to say thanks to Mercedes source for the ability to learn everything about these great cars and giving me the know-how to do all my own work. Truly priceless.
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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.
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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!
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Service 10 mm Head Size Locking Nuts ( Set of 10 )
Early Diesel Pre Chamber Removal Threaded Tool (up through 1987 models only)
1982 300D Hard Injector Line Replacement Alternative?
I am researching an alternative to the diesel injector hard lines that provide the fuel to the injectors.
I am interested in the nut size and I am looking at flexible hydraulic lines and racing fuel lines.
Does anyone have experience testing alternative fuel lines?



