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-   -   Stalling 300E, Idle control? (http://www.peachparts.com/shopforum/tech-help/153569-stalling-300e-idle-control.html)

georgedaman 06-02-2006 03:35 AM

Here is my story...
 
hopefully this will be helpful

--------------------------------------------------------------------------------

I had a 88 300E .when the hotter weather came the car started to stall for no reason.changed the voltage regulator , a few other things.Make the long story short..someone at mercedes told me to take out the computer(behind the battery , under the hood) The car will start up in a kind of safe mode(higher fuel consumption, slower acceleration but IT WILL GET YOU HOME!!!...lol BTW show me another car which will do that!!!) Now if you drive the car around for a day or 2 and the stalling doesnt reoccure, the problem is 99% with the computer.You can get a new one or used one but what i did is......... (i remembered that german printed circuits gave my problems already before ,poped up printed circuits,loose soldering joint,)...took the comp out,seperated the 2 inside panels and reheated all joints ...appr 200.....and drove the car for another 150000 no problem.But thats just how i solved it.

Nateuton 06-05-2006 03:52 PM

good news
 
Well guys, this is interesting. After all that I still don't know what it was for sure, but now it is running like a champion. The last part I tried was the OVP and that did not seem to make much or any difference. I was about to take apart the intake assymbly and look for the Potentiometer, so I took the idle control valve off and tested it just to be sure and it seemed to work as it should so I put it back in and what do you know, it seemed to do something because now the car is working the way it should. hmmm
Well thank you to everyone who has helped me with this perplexing problem and I now know more about my car than I ever would have....
I also have the information for any future problems that might arise.

Thank You!!!!
It is all very much appreciated....
Sincerely,
Nathan

raymr 06-06-2006 12:25 AM

Maybe you jarred some crud loose in the ICV. I would take it off and clean it out with carb cleaner, just to be sure. They get pretty dirty from the crankcase gasses going through.

kbatson 06-15-2006 01:33 PM

ha ha
 
Should always check co2 adjustment first after replacing a E.H.A. valve. Make sure your o2 sensor is good when doing this.

Bill W. Rippy 06-17-2006 10:45 PM

300E surges then quits
 
Help!!! I have a german 1985 300 E. They say its the same as 1986 US. Its a 6 cylinder fuel injected. It runs about 20 minutes then starts surging real bad upon acceleration, then it dies, completely everytime you just barely touch the accelerator. It will start right back up but will not move much if you have to press the accelerator. I live in Costa Rica and parts are VERY EXPENSIVE. I have replaced fuel filter, cleaned injectors, replaced fuel pump, and today the (Dosificadora) which is I think the fuel pressure regulator. Its the part that the fuel lines come out of to the injectors. New this part costs here $2000. Rebuilt $1000. I found a used one for $350. but when installed ...nothing ...no change. the mercedes mechanic feels real bad. But ???? I have read here about oxygin sensors, catalytic clogs and crankshaft sensors as being maybe the problem. I can't keep buying parts so really need help on what to do now. Its Friday night and I have an appoinment with my Baby and the mechanix Tuesday. I love this car.
Bill


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