Coolant and Heating running temperatures
From VW T25(T3)-Tech
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Grun: Haynes says thermostat fully open at 105 celsius.
Radiator fan, carburettor engines:
1st speed cuts in at 93 to 98 C
cuts out at 88 to 93 C
2nd speed cuts in 99 to 105 C
cuts out at 91 to97 C
Fuel injection engines:
1st speed cuts in at 89 to 94 C
cuts out at 81 C
2nd speed cuts in at 95 to 100 C
cuts out at 87 C
