Engine whirring noise after car switched off

zac slack

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Hi all, need some advice.

My 124 E320 Coupe (auto/1996) is usually super friendly but this week the battery died completely, so got it fully charged overnight at a garage, stuck it back in this morning and then heard a whirring noise coming from the engine after I had switched it off. It's just had its full annual service last week and not used since, so was a bit annoying.

thermo-630x500.jpg


Obviously something has been stealing the battery charge and I thought it could be the factory fitted alarm (that no longer works) but it sounds like it's coming from this part of the engine, which I think is the thermostat housing? When I unplug the battery it stops. Any tips from your own experiences?

Thanks

Zac
 

Avantgarde Automotive, Mercedes-Benz and SLR McLaren specialists. Service, repairs, diagnosis and motorsport preparation.
Unit 14 Hither Green Trading Estate, Clevedon, Somerset, BS21 6XU Tel: 01275 217270 Email:steve@avantgarde-automotive.co.uk
www.avantgarde-automotive.co.uk
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