C220 CDI Slow acceleration no power, help
Last edited by hpeakie; Apr 16, 2010 at 05:41 AM. Reason: wanted to add a bit more info
Being a 2003 year model it is a W 203. It may be benificial if you post in that forum or the Diesel Forum. You may receive more info.
At 98,000 the engine is not run in.

There are so many possible problems the only way is to visit a decent diesel mechanic with the MB electronic monitoring equipment.
It could be in limp mode.
Or blocked air cleaner, blocked fuel filters, fuel p/p fault, Electronic metering fault ect , turbo fault, blocked exhaust fault.
Is the auto trans operating normally?
I will be interested to know how you get on.
How long have you had the car ? . Are you used to turbo lag?
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if this is such a common problem then why did merc not program the ecu to show a fault, considering when the fuel hits reserve it considers this a malfunction...
should I be worried?
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I am in South Africa, so I wont be taking my car to your mechanic...
I did have a mech look at the diagnostics and we replaced the MAF sensor but it still showed a fuel air mix fault
turns out the intake has a loose or eroded part inside, apparently its common for diesels and it upsets the fuel/air mix which can cause the computer to kick in the limp home mode...
but to remove it and replace seems like a big and costly job...
Is it possible to install a good second hand intake assembly?

Nothing wrong with serviceable used parts.





