overheat warning light comes on within 10 seconds of starting up. it does not always overheat unless I do a journey in excess of 10 miles.
any help would be appreciated.
regards graham
First thing is to find out if it's actually overheating,
Which I doubt as few cars ever get to temperature let alone overheat in 10 mins.
More than likely it's a faulty coolant temperature sensor.
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