Quote:
Originally Posted by The Gears
1984 300 SD
1/ The switch on the thermostat housing is it normally open
when cool
2/ At what temperature will it switch.
3/ Will it turn on the Aux fan when engine goes a higher than safe
temperature.
OK I lied, 4/ Does it have anything to do with the heating
system.
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1) Correct.
2) 50°C.........IIRC
3) It does not run the auxiliary fan.........it runs the blower in the cabin.........prevents it from dumping very cold air on the driver and passenger.
4) Yes, it does.