It dumped the coolant and i was going by the temperature driver said for the warped head.
Direct Injection Diesels run at 87 degree Celcius and indirect run about 80 degrees.
Hotter or Colder the engine runs away from the ideal temp of the type engine and fuel the worse the fuel mix burns. cuase in detonation if too hot, and incomplete burn if to cold.
I had 3 new leons 2 cupras and 1 tdi the PQ 35 platform demister is really slow and rubbish when thermostat open the temp would drop for few minutes on them at -4 to - 10 degrees in winter it usually took 10 minutes to defrost the cars due the demister. That was on the new cars thats why I said what I said
Vag build quality was a bit of an issue due to the volume parts the use in production of the platforms..... I think they have got on top of it now....
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