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Robert, Peugeot Technician
Category: Peugeot
Satisfied Customers: 4708
Experience:  Fully qualified 19+yrs exp/self employed technician in the UK
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Cooling fan comes on as soon as engine starts and stays on

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Cooling fan comes on as soon as engine starts and stays on when engine is switched off


What - Model / Year / Engine is your Peugeot?

Anything checked or replaced so far upto this point?

Any other warnings come up since this fault occurred?

Customer: replied 2 years ago.
Peogeut308sw 2008 1600cc. Oil warning light came on
Customer: replied 2 years ago.
Peugeot 308 sw 1600cc 2008 oil warning light came on .oil checked found to be low oil added


Normally the oil warning wouldnt cause the fan to kick in that quick under cold engine - so long as the oil has been topped up and that warning has gone out..the only sensor that would likely cause this is the coolant temp sender/sensor thats part of the thermostat housing..some are intigrated in to the whole housing and some can have the sensor replaced on it own without thermostat housing best place to start would be to have the coolant temp sensor changed...and see if that solves quite a common problem so it would be well trying that..added to that who ever you do get to repair this they can diagnostically test for fault codes which in turn will confirm if indeed the sensor is at fault.....I do hope this helps

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