Questions & Answers for: Mercedes-Benz 300-Class rough idle

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Question about 1984 Mercedes Benz 300 Class

1 Answer

...rough idle. More often than not when I try to start my 84 300 turbo diesel it wont crank and I have to pop the hood and jump out the ignition from under there and then it cranks just fine, i have to ...

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Question about 1992 Mercedes Benz 300 Class

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...rough in low idle BENZ 1992 300E 124.030/103.9 1992, 300E (124.030/103.9) ROUGH IN LOW IDLE COLD OR HOT. ENGINE STALL IF A/C IS ON WHEN I PUT IN DRIVE. HAS NEW WIRES SPARK, PLUGS, ROTOR AND BATTERY. ...

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MY 1985 300 SE IDLES ROUGH AFTER IT WARMS UP WHEN I START THE CAR IT IDLES FINE, BUT AFTER IT WARMS UP IT IDLES VERY ROUGH. THE TACH JUMPS UP AND DOWN AND CAUSES THE CAR TO MOVE UP AND DOWN hi,seem ...

Question about 1993 Mercedes Benz 300 Class

1 Answer

rough idle.It has a new mas sensor a new oxygen sensor,the throttle body has been cleaned ,and the engine has been tested for air leaks. When the engine is hot it settles down and can run normally but

Question about 1985 300

1 Answer

85 300D / Engine idles rough Idles rough...have changed air & fuel filters, used gas additives & still car idles so rough the entire car shakes...motor mounts are good...any suggestions?? try ...

Question about 1984 Mercedes Benz 300 Class

1 Answer

car hard starts and rough idles and cuts off when attempting to accelerate. this is a 1983 230E model Check fuel, air cleaner, timing, spark to each cylinder, possible compression...

Question about 1984 Mercedes Benz 300 Class

1 Answer

car hard starts and rough idles and cuts off when attempting to accelerate this is a1989 230e model, it produces a black smoke Black smoke is burning oil, blue is unburnt fuel. If you are burning oil ...

...idle rough for the first 20 to 25 seconds. How do I solve the problem? Thank you so much for your help Could be OVP (overvoltage protection relay), coil, cap, rotor, wires, plugs, and/or duty cycle ...

Question about 1989 300-Class

1 Answer

...idle rough at first. If the glows do not come on, engine will not start or do so after extended cranking and idle rough if temperature below 50F. If glow lamp not coming on, the 80 amp fuse may be ...

...see my other post on 300E rough Idle. THis care uses a hybrid bosch mechanical electronic fuel delivery system. easy to diagnose and assumptions are usually wrong. try w124zone for basic

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