Engine management light is on – what’s the fault? | Ask Honest John

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Engine management light is on – what’s the fault?

The engine management warning light has come on my Mercedes-Benz C-Class. The car has covered 36,500 miles and the oil is a little low. There are no real problems to report, but the acceleration is a little poor. Can you help?

Asked on 18 August 2013 by danz

Answered by Honest John

Maybe a blocked engine air filter or blocked DPF. Obviously check the air filter first.

Tags: engine management technical issues

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