Cooling fan coming on all the time - is this normal?

The cooling fan on my diesel Ford Fiesta comes on and impacts performance quite regularly - is this normal for a 2012 car?

Asked on 1 May 2014 by yellowstag

Answered by Honest John
It's more likely to be coming on because performance is affected by the engine overheating. So you need to find out why it's overheating. Is the radiator blocked, for example?
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