rolfy
Senior Member
- Joined
- Jun 24, 2010
- Messages
- 101
- Reaction score
- 0
- Location
- Nottingham UK
- Your Mercedes
- W203 C180 Kompressor Coupe (57 reg)
Good morning all
A week or so ago I noticed the car was loosing boost intermittently. My immediate suspicion was a dirty MAF as I've had that on another C-class. It was manageable for a while as the car would reset if I stopped and re-started.
This week it's got much, much worse and there's almost no boost at all, certainly not above 2500 revs or so, and the only time I've been able to look under the bonnet in daylight there's a lot of black residue on the left side of the engine under the Air Filter housing and the oil separator. I also noticed some black smoke coming from this area (as if the exhaust was leaking) when I revved the engine in the drive. Restarting doesn't seem to have much effect.
Any clues as to what might be the fault and whether driving the car on short local journeys would do any more damage while I save up for the usual hefty repair bill?
All advice appreciated.
A week or so ago I noticed the car was loosing boost intermittently. My immediate suspicion was a dirty MAF as I've had that on another C-class. It was manageable for a while as the car would reset if I stopped and re-started.
This week it's got much, much worse and there's almost no boost at all, certainly not above 2500 revs or so, and the only time I've been able to look under the bonnet in daylight there's a lot of black residue on the left side of the engine under the Air Filter housing and the oil separator. I also noticed some black smoke coming from this area (as if the exhaust was leaking) when I revved the engine in the drive. Restarting doesn't seem to have much effect.
Any clues as to what might be the fault and whether driving the car on short local journeys would do any more damage while I save up for the usual hefty repair bill?
All advice appreciated.