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Repairing the Cooling Fan

Model: Mercedes Classe M W163 - Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Part: Blower motor

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The cooling fan is part of the car's engine cooling system and should always be maintained. The function of the fan is to ensure that the temperature of the car's coolant does not exceed the critical threshold, usually around 80/90°C. Repairing the fan means first identifying the cause of the fault.

The damage could be to the fuse, which in that case will need to be replaced, to the thermostat switch, or in the relay of the motor where there may be a broken wire that can simply be replaced with one of the same diameter.


Updated on 10 February 2026 by ScegliAuto


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