300 TE Stumbles & Stalls After A Couple Of Miles - Benzworld.org

georgeeight · 10-19-2005, 11:30 AM

Hi Please Help

My 88 300 TE 4matic has this problem.

I start the car from cold in the morning and its fine, no idle issues and just purrs like a kitten. After when the car has done a few miles and the engine is warmed up it starts to stumble and stall when I accelerate from the lights??? I can start it up again but when I put it in drive and accelerate the engine just stalls??

I had to be rescued in the end and the mechanic managed to adjust the tick over so the engine was at higher revs when in idle to make the vehicle driveable.

I managed to drive it home but now the engine revs much higher when idle.

I have searched the forum and could it be the O2 sensor or the ICV idle control valve? Or is this a choke problem?

I have replaced the battery thinking that this was the problem but is not.

Please can anyone help?

Many Thanks

Yal · 10-19-2005, 12:29 PM

Crank Position Sensor would be my guess.

georgeeight · 10-19-2005, 02:03 PM

Would you know where this is located and what it looks like? Also is it expensive to replace?

Many Thanks

georgeeight · 10-20-2005, 02:38 PM

Well I found out the problem with my car and glad to say it was fixed today. I have spent many hours reading through the forum and found that a lot of people have this idle problem. I am glad to say that on mine it was the distributor and rotor arm. I changed these two parts and now the car is back to normal.

I can suggest one thing that if your car starts to stumble and stall. Put your car in Park, turn on engine (if engine does not start wait for 20 mins before starting). Turn the round adjuster on the throttle cable (behind the air filter) anti clockwise to increase the revs so that the car does not stall, you should hear the engine revving up mine was about 1,500 - 2,000 revs. Get back in car and put in drive. This should allow your car to drive and not stall, so that it is a temp fix to get you home.

Once home dismantle the distributor to have a look, clean all the contacts with a wire brush or file and also the rotor arm. If it is in good condition, I don't think that you will need to change it. However I did just to make sure. Don't forget to adjust the revs back to normal by turning the adjuster clockwise.

Here is a link for dismantling the distributor:

http://www.mercedesshop.com/Wikka/M103TimingCoverReseal

Here is a link with someone with the same problem as mine:

http://www.mercedesshop.com/shopforum/showthread.php3?t=118349&page=3&pp=15&highlight=st umbling

Thanks guys, as you can see they changed a lot of parts and it turned out to be a simple fix. I'm just glad it was not the ICV or the O2 sensor that cost $$$.

Thank god for forums
[:D]