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Hello everyone,

I'm looking for your advice please.

I have a C220 CDi auto (2004) with approx 80k on the clock.

Yellow engine management light came on and when the car warmed up it started to lose power and wouldn't rev/kick down to accelerate, plus it would be flat and no matter if my foot was flat to the floor, it wouldn't go any faster than 60-70 mph. Occasionally, the revs would hunt and start fluctuating (not much, a few hundred either way) and if it weren't an auto I would have expected perhaps a stall?

The forums I read led me to believe it was a MAF problem.

I have changed the MAF, but the engine light is still illuminated. Will the light go out on it's own once the system recognises the new MAF and that things are ok, or will I need to have it put on a Star system to read the code and have it reset?

If the MAF wasn't the problem, what might it be?

Could a full or faulty DPF be the problem?



Can anyone recommend an indie MB garage in Kent UK (near Sheppey?) to have a look for me?



Thank you for your time and advice.
 

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CURRENT: 2011 SL550, 2011 C300 FORMER: ML350, CLK550 Cabriolet, C240, ML320, 300TD
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19,447 Posts
If replacing the MAF fixes the problem, the error will clear after about 20 starts.
 

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If you replaced the MAF as a knee-jerk response to a CEL, then just replace the car. There are about a thousand reasons that light could go on, anything from a loose gas cap to a bad conductor plate in the transmission.

Read the codes, read the codes, read the codes.

Diagnose, don't replace.
 

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Hi,

I have the C220CDI and agree with the last post. The fault needs to be diagnosed electronically. As your car is a 2004 model then most reputable car repair garages will now have the necessary software to diagnose your problem (in the uk). It is not necessary to take this to a MB dealership with all of the high costs associated with this.

Hope you get your problem quickly resolved.

Regards,

Martin.
 
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