Question about 2004 Mercedes-Benz C-Class

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My c230 mercedes has its engine vibrating and check engine on after washing the engine.what might be the cause?

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  • 53 Answers

Got spark plugs end wires wet,

Posted on Dec 01, 2012

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6ya6ya
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Posted on Jan 02, 2017

  • 15 Answers

SOURCE: 2002 C230 Kompressor Coupe, Check Engine Light

yes

Posted on Jan 27, 2009

bunnydawg
  • 5158 Answers

SOURCE: spare key for c230 mercedes benz

does it have a chip in the key ? if not any locksmith can make you one

Posted on Feb 23, 2009

  • 16 Answers

SOURCE: my check engine light is on, any suggestions?

Battery not charging .. chech ur alternator

Posted on Dec 03, 2008

  • 1 Answer

SOURCE: what doe the code mean p0171 for 2004 mercedes

either a vaccum leak, or a dirty mass air flow (maf) sensor. the sensor you can clean with crc maf cleaner spray at your local auto parts store. as for the vacuum leak, i heard there is a recall for m271 engines to replace two faulty vaccum lines. one line goes to the s/c, and i believe the other one is right next to it. check if your car needs this recall and go from there.

Posted on Dec 31, 2009

kapishtech
  • 2272 Answers

SOURCE: My C230 Mercedes has check engine light on. Car

P0171 indicates a lean condition. The most common cause of this is a defective mass air flow sensor. Also check if any vacuum leaks.Replace MAf sensor,if cleaning the MAF does not help.
Thanks.

Posted on Oct 01, 2010

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I have a vibration when i put it in drive, seems to go away after i get going doesnt vibrate in reverse


If the vibration is observed when the car is at rest, engine is running, brake pedal is depressed and is on D, check the following:
- Idle speed must be according to the specification.
- Vacuum leak.
- Spark plugs condition and air gaps between the electrodes.
- Fuel system and injectors.
- Engine and transmission mounts for looseness or are broken.
- Muffler and its foundations.

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check the fan relay for proper operation. Check the engine coolant temp sensor. If it is disconnected or stuck at full cold, the fan will not come on.

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Why is my Engine light on at 28,000 miles on C230 Mercedes 2007


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