Merc cdi snags...any ideas folks??

[silverback mike]

Just a helpful hand please folks.

The car is a T reg merc 220cdi with a fair few miles on it.

I'm experiencing a loss of power when the car reaches 3000 revs. Not so much a loss of power but it's like it hits a rev limiter and won't go above the 3000 mark. However, this is only when the car is warm. When it's cold, no problems at all, it goes well. I can hear the turbo whistling when it pulls away as well. This lack of power is a right old pain on the motorway.

I've changed the air filter, checked other obvious stuff, any ideas at all?

Thanks in advance
Mike.

[Jack_and_MLE]

Have you checked the MAF?
I'm not sure where it is on a Merc but if they get dirty or if they are dead there is a loss of power.

Try disconecting it and check if you still have the same problem

Jack

[PaulV]

I expect you are in limp mode, a chap at work had the same problem a while ago.
He got his fixed by a dealer, I can't remember what his problem was tho', he had a few around that time.
HTH

[silverback mike]

Thanks chaps, I think you are probably right. I'm taking it in tomorrow to have the faults read......

[mt10argyll]

My 320 cdi was doing something similar turned out to
be the turbo replaced under warranty which was nice
no more probs