Unusual noise when turning off the engine
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There is a buzzing noise from the engine when I turn it off. It only happens when the engine is hot - at this time of year, 10 minutes from a cold start. The check engine light isn't on and it runs perfectly, although maybe slightly louder than usual.
Is this the EGR valve?
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MB Mondeo TDCi wagon, sea grey, on MAK Invidia 16" wheels.
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