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MB Paul
MB Paul, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3567
Experience:  Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes
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04/230c kompressor.check engine light is always on.car has

Customer Question

04/230c kompressor.check engine light is always on.car has rough idling.dealer,replace,air mass sensor,throttle valve actuator,upstream sensor,oil was found in the connector.sensor was replaced.car perform ok for about 3 weeks,ck.engine lights came back on,after a few days driving,rough idling started.iam at this point.i park car.ido not want to take it back to the dealer.with due respect.i dont think the dealer has experienced mechanic.to diag.this problem.your help will be greatly appreciated.
JA: Is the rough idle intermittent or consistent?
Customer: constant
JA: What is the model of your '04 Mercedes?
Customer: 230c
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: always at the dealer,different shops do diagonists.
JA: Anything else you want the mechanic to know before I connect you?
Customer: one shop suggert contamination of oil in wire harness.
Submitted: 1 month ago.
Category: Mercedes
Expert:  Lou P. master tech replied 1 month ago.

Hello, my name is***** and i will do my best to assist you.I am going over your story now and will reply back soon with some info,thanks!

Expert:  Lou P. master tech replied 1 month ago.

have you checked the fault codes and if so what are they?

also how many miles are on the engine?

does it run better or worse when cold or hot ?

Customer: replied 1 month ago.
239000km,runs hot or cold dont know.when check engine lights code remove,runs ok for a few days,then ck.lights came back,runs ok for a day the the rough idlind starts again.
Customer: replied 1 month ago.
forget about this.please credit back my deposit.,thanks.
Customer: replied 1 month ago.
lou ,please returned extra charge of $37.00 to my a/c.as i did not agree to chat with you.

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