c200 2008 model radiator fan is on after turning the engine on

Asked by GuruTPN69 Jul 13, 2018 at 11:46 AM about the 2008 Mercedes-Benz C-Class C 230

Question type: Maintenance & Repair

radiator fan turns on after 5 seconds having started the engine

1 Answer

42,950

A running fun is normal for a car that was just driven and parked hot. The heat of a recent drive is still present. Now if the fan runs on a cold engine, that's not normal unless the A/C or Defrost functions are on. Running at the wrong time would be a faulty temp sender unit or a stuck on relay.

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