Having problems with your 1995 Mercedes-Benz SL-Class ?

MB 95 SL500 Fuel Prob, Running rough, etc.

\015 I have a 95 MB SL500 80K miles that during the past month or so has "SOMETIMES" started running rough at lights, etc. but would recover and then seem to run fine until the next incident on another trip or similar. I just changed the fuel filter (it is installed correctly) and now everything is worse. After it sits for a while and is cold, it runs and accelerates fine and exhibits no fuel starvation problems, but after it gets to operating temp, it idles rough and I have to shift into neutral at lights to keep it running. Also it will not take the gas when accelerating but after I get it to say 30-50 mph it seems OK. But it still is fuel starved on acceleration and hesitates when doing that at any speed. Can you help me fix this please. Thanks\015 Posted / edited by AnonymousUser on : 26-06-2017

Answers :

I have a 1993 SL500 mine would die and then after sitting would start and run, tried fuel and all kinds of stuff. Turned out it was the distributor caps and rotors. Easy to take off and easy to see if they have dirt and carbon tracking on them. I had to replace them once and cleaned them with WD40 recently. If my car runs rough its the first thing I check.
Testing Fuel System Pressure\015\012Most vehicles utilize a fuel injection system to deliver fuel to the engine. \015\012Correct fuel system pressure is essential for proper engine operation, in fact many \015\012engine run-ability problems can be related to weak fuel system pressure. A fuel \015\012injection system contains a fuel pump to supply fuel from the tank into the fuel \015\012system. The fuel filter cleans fuel before fuel enters the fuel injectors. The fuel \015\012pressure regulator adjusts fuel system pressure depending on the load of the engine.
Repair Help & Product Troubleshooting for 1995 Mercedes-Benz SL-Class

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