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rough idle

731 views 1 reply 1 participant last post by  deuce 
#1 ·
i have an 03 c230k coupe

when i start the car it idles around 800-900 rpm and shakes. if i leave it in neuteral and rev it a little, the shaking becomes almost violent.

also, on my way home as soon as it would hit 2000 rpm, it would make a loud noise that i cant really describe, yet if i ref it in neuteral, no noise.

any ideas on what im in for when i take it to the dealership tomorrow?
 
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