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how can i fix Citroen c4 ?

warning light keeps coming on Citroen C4 depolution system malfunction how can this be rectified



ann lockley
April 2015


Need to mend your Citroen C4 car?

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Can I assume that it is a petrol engine? (You don't think to tell us). I bet you are using the car for short runs only? If so then with the car engine never getting fully warmed up you end up with unburnt hydrocarbons on the lambda sensor in the exhaust system which switches on the warning.

Put decent fuel in the car and take it for a long run. You should find that the depollution warning light goes off after the hydrocarbons have burned off.

If it is a diesel then this won't work.

ChicksFan
April 2015

Your first option is to get it onto a code reader to see what fault codes are stored

cdc
April 2015

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