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Discussion Starter · #1 ·
Got wifes car today (she only lets me have it when it needs petrol, screenwash or BROKEN) todays lucky husband gets a car with thermostat rad fan constantly running after a short ride?

Not a particularly warm day I have checked
  • Coolant reservoir - Hot no milkyness nice and clean coolant
  • Heaters in cabin - Hot
  • Radiator - COLD
  • Oil cap removed normal oily appearance
  • removed dipstick when running - No blow back
  • radiator hoses - cool and if squeezed both return water to the reservoir therefore rad full?
No recent service work except A/C regas

From this set of rudementary checks I deduced the thermostat is seized CLOSED???
I also have a service light lit (car/wrench) but its been lit at the start of journey loads of time and goes out after about 20secs.

what do you guys think?
 

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Discussion Starter · #2 ·
just checked it now cold unused for about 1h30m ignition on started fan on immediately water cool???
Now looking electrical...but why was the rad cold?? is the thermostat electrical?
 
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