Question about 1989 Mercedes-Benz 300-Class
The inside of the ignition dealer (Delco) must be thoroughly cleaned and all metal parts passed with fine metal wool. Sparkplugs must also be cleaned or renewed. The air inlet-valve is very sensitive. The cylinder and the disc must be carefully cleaned with light metal wool and contact cleaner. The fault is due to the disc remaining stuck in the cylinder, so no idle function and malfunction of the auto-choke system. If this solution does not work, then the vacuum pressure is defective.Hint from a German Mercedes specialist.
Posted on Dec 02, 2008
I also have a 89' 300e and had the EXACT SAME PROBLEM after completing a trip from San Francisco to Portland,Oregon and was completely mystified at first... She would start up fine and drive,but as soon as I stopped at the first traffic light, she would completely die. A..All the lights and everything we fine power-wise. ... I took her to a local MBz repair shop and to my chargrin, the problem was with my DISTRIBUTOR CAP and motor...The MBZ repair guy told me that only 2 pistons/cylinders were getting ignited which explained why she would initially start and drive for a little... The repair bill was just $220 and it completely solved the issue. I hope this helps you..It was quite an adverture coming to this solution on this end=) Cheers!
Posted on Apr 30, 2009
Not a solution, but I have pretty much the same situation now. My 89 300E takes a notion not to start and the battery runs down quickly. Have to jump start it when it sputters and dies at stop signs. While trying to start it, and I let it crank for a few seconds, when I turn the key to left but leave it in on position, the car acts and sounds like it wants to start and actually runs for a second, then dies off. But the "running" is very feint like it is hitting on one cylinder. I am beside myself and my mechanic thought the low battery made the computer mess up. After I do get it started, it runs perfectly. I think it passed away forever this time.
Posted on Apr 06, 2010
I had the same problem with my 89' mercedes 300e but it was worse, i would have to let the car dry out all day before it would work again. Get a tune up, full tune up is a lot but a partial should work, there is an electrical part in the engine that might need to be replaced. Thats what i did and the problem has stopped completely.
Posted on Sep 28, 2009
I didn't read the whole post, but I would say that most likely you need to take the distributor cap off and dry it out. A hair dryer will work. You will most likely need to replace both the cap and rotor because they are probably both covered in corrosion, but for now just carefully clean it with a wire brush
Posted on Aug 28, 2011
ok..you must have more than one car???? you don't drive the 300 atall im guessing. #1 start car drive up the road and \back to your house. #2 let it idle till problem starts. #3 once it does start with the problem keep it alive with the gas pedal. #4 once your have it safely from dying in higher rpms "rev it" like a kid would, you know like if you were gonna race some one lol. be careful not to over rev or damage engine. you should do this for five minutes no longer than that. #5 let it idle for another 5 minutes. #6 repeat every day until problem with idling decipates. it took mine 3 300e like 3 days of this. if your not going to drive the car once you get the problem out of the way. turn the car on everyday and let it idle for 5 minutes atleast and take it for a short drive once a week. they get lonelly you know lol. later on you can just turn the car on every 2 -3 days and let it idle but still take it on a short drive atleast once a week
Posted on Feb 27, 2010
A Mercedes benz dealer in parts and service should be able to order a manel for you if not,try Auto Zone they have the chelton books that show how to for Mercedes.
Posted on Jul 26, 2010
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