1986 300e w124 PLEASE HELP!! My car is dying!!
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Joined: Oct 2009
Posts: 7
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From: Miami Beach Fla.
1986 W124 300e
1986 300e w124 PLEASE HELP!! My car is dying!!
I have a 1986 Mercedes w124 300e with auto transmission and 100,000 miles. Just the other day as I was driving down the street i pulled the car over to park and as it idled I noticed the engine making sounds and running very low rpm it sputtered a little then died. I restartex it and it started fine but when I gave the car some gas it was very unresponsive then slowly died again. I had to get it home so I started it up again then put it in drive and gave it gas, once doing that I noticed the economy gauge rising (using more fuel) and would not go down when my foot was not on the throttle anotherwords running the Same rpm but fuel was being pumped without me doing it. I could get the car to weakly drive 100ft at a time also it made a couple popping sounds. I had to continuosly restart the car to drive further. About halfway home I held the throttle then released when the economy went up and then it drove me back home fine with very good respnse after. When I started it again today it had the same problem and as before the economy gauge was acting funny and it would idle then slowly die. I have posted before about bad accelration response which I was told could be the masterflow sensor but the car would always drive Fine other than that. The day before this happened I changed the oil filter and oil but added a little too much oil (about an eighth inch above max, could this be part of the problem?Please help it's my only transportation!! Let me know if you know a possible problem or what I should troubleshoot thanks!!!
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Joined: Dec 2009
Posts: 1
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1986 300E
1986 300E dying - same exact problem
Shop can NOT find the problem and it's driving me crazy.
New fuel pump, filter, rotor, distributor (everything) plugs ect...
Got it back 5 days ok, then same thing. over 2000.00 in
labor and I'm right back where I was.
Starts fine, runs a few miles and then just goes into a fail
mode and I have to creep along with the hazards on. Shut off
the car wait a minute or 2 and then it starts, go a few miles
and the same thing. Took me 1 hour to get to work 8 miles.
Shop owner is a friend too.
Any advice
?
New fuel pump, filter, rotor, distributor (everything) plugs ect...
Got it back 5 days ok, then same thing. over 2000.00 in
labor and I'm right back where I was.
Starts fine, runs a few miles and then just goes into a fail
mode and I have to creep along with the hazards on. Shut off
the car wait a minute or 2 and then it starts, go a few miles
and the same thing. Took me 1 hour to get to work 8 miles.
Shop owner is a friend too.
Any advice
?
Newbie
Joined: Jul 2010
Posts: 1
Likes: 0
From: Costa Rica
W124 1987 E300
I'm having the same issue but my car does not turn off (yet) however the fuel economy gauge gets crazy and I could even be going down hill without pressing the gas pedal that the economy gauge is more than half way to the right (red section). It gets worst with the days and I can't seem to find the problem.
I also have a new fuel pump, spark plugs, filters and recently had the injectors cleaned but after a few miles of use when it idles, it also runs on very low rpm yet still does not turn off, obviously the engine shakes more and makes more sound when this engine is usually hard to hear. And when it also idles the economy gauge rises to about 3/4 high when before it used to stay at almost the lowest level when idling.
I'm also hearing sometimes a quick and random "tic tic tic" noise somewhere under the seats but the gas pump is new so I don't know what that noise could be.
Thanks in advance for any help you can provide.
I also have a new fuel pump, spark plugs, filters and recently had the injectors cleaned but after a few miles of use when it idles, it also runs on very low rpm yet still does not turn off, obviously the engine shakes more and makes more sound when this engine is usually hard to hear. And when it also idles the economy gauge rises to about 3/4 high when before it used to stay at almost the lowest level when idling.
I'm also hearing sometimes a quick and random "tic tic tic" noise somewhere under the seats but the gas pump is new so I don't know what that noise could be.
Thanks in advance for any help you can provide.
