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Mercedes C200 CDI - loss of power

We purchased a 2008 Mercedes-Benz C200 CDI last year from a car supermarket in Sheffield. It has covered 46,000 miles and was serviced by the manufacturer up to 31,000 miles. It may be my imagination, but it appears to be suffering a little loss of power/hesitancy at low revs. Do you know what the problem could be?

Asked on 24 June 2013 by Matt B

Answered by Honest John
Switch to Shell V-Power Nitro+. That should clean up the fuel system, and using it I am getting 6.7 per cent better fuel economy for 5.7 per cent increased cost.
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Well built and attractively styled. Available with low emission diesel engines. Entry-level C180 petrol is surprisingly good.