W203 C220 CDI Bouncing Rev's...........

liamcartwright

Active Member
Joined
Jul 15, 2009
Messages
36
Reaction score
0
Your Mercedes
2008 ML280 Edition 10
Hi All,

I've got a facelift C220 CDI & just got it back from Mercedes after a few problems. The initial problems were, the engine management light came on, lack of power, not going over 3000rpm, bouncing rev's etc. Under warranty they replaced the intercooler breather hose, fuel lines in & out of the diesel filter & the CAM pressure sensor. They also removed the exhaust & checked the CAT (that was ok).

All now seems ok apart from when I'm accelerating slowly from say 30-40mph or when I'm cruising at around 40mph, the rev's are bouncing very slightly (by about 50rpm). Any ideas or should I just book it back in? The engine management light is not on now BTW.

Thanks.
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
I think that you will have to Liam,,that is a hard one to sort out
 

turbopete

Senior Member
Joined
Feb 4, 2009
Messages
14,204
Reaction score
328
Age
46
Location
Spennymoor
Your Mercedes
2010 '60' Ford Mondeo 2.0TDCi Zetec (sorry)
only thing that could cause that, that could be found without booking it in, is poor/contaminated fuel, or possible slight air leak somewhere, but if its only done it since being with MB, id be inclined to get them to sort it. after all, it didnt do it before!
 
OP
L

liamcartwright

Active Member
Joined
Jul 15, 2009
Messages
36
Reaction score
0
Your Mercedes
2008 ML280 Edition 10
  • Thread Starter
  • Thread starter
  • #4
It can't be poor fuel as I only run it on Shell V Power Diesel.

I'll give them a bell tomorrow and book it back in, it's still under warranty anyway.

Thanks.
 
Last edited:
OP
L

liamcartwright

Active Member
Joined
Jul 15, 2009
Messages
36
Reaction score
0
Your Mercedes
2008 ML280 Edition 10
  • Thread Starter
  • Thread starter
  • #5
Just had a call from Mercedes Warrington to say its the MAF. Being replaced under warranty.
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
Pleased that is all it is,,a quick easy job :D:D
 


AMF Automotive - We are an independent Mercedes-Benz and AMG specialist located in Dartford, with full Mercedes Diagnostic equipment. We offer a full portfolio of tuning options for AMGs and can cater for all your Mercedes needs.
Tel: 0203 384 4644www.amfmercedes.com/
Top Bottom