irregular

Hello, Im A Noob First Time Poster And Long Time Reader, With My 3rd Merc That Needs Some Help (unlike the others w202 and w124) Foreign By Nature So My English Has To Be Excused. Thank You For Your Understanding And For Forgiveness If Ive Posted This Somewhere I Shouldnt. :ban...

My C250TD would idle smooth when cold however after driving it for about 50km the idling would sometimes be irregular. I had the plastic pipes and o-rings replaced but without luck. When I rev it up it smooths out again. Could it be the lift pump? Your comments / advice would be highly appreciated.

Hi, just bought a 1993 E220 W124, and in the last week it has been giving me a bit of a head ache. it would for no reason start shuddering, as if its not firing on one cylinder, but if the car is switched of and restarted, it runs normal. Revs also pick up to 1500 rpm. have changed the spark...

Hi all, I'm just new around here so sorry if this has been covered before, I have spent an hour reading around but can't find anything that resembles my problem. I bought my W203 last June from a independent dealer after it had been passed to them by a leasing company. The car previously...

Hey Guys Have a minor problem that I need help with. My W202 C230K sport idles irregularly. It seems that the rev counter is jumping up and down when the car is in neutral. Is this a commin occurance or is there something wrong. On pull away all is fine except for a slight delay. Any advise will...