2000 CLK 320 Engine Cooling Fan - Spins at low speed only?

Page may contain affiliate links. Please see terms for details.


New Member
Nov 23, 2022
Andover, UK
2000 Mercedes CLK 320 Elegance
Hello, my radiator fan only spins slowly and does not ever transition into high-speed mode. When the car has been driven and is up to temperature and I stop for a while I get "Engine Fan - Visit Workshop" on the display and the engine creeps up towards the 3/4's mark on the temperature gauge. Does anyone know why this would be happening? As I said the fan does spin it doesn't kick into high speed when needed, the car is clearly telling it to but I guess the fan is not responding. I've seen fan control modules on eBay but I can't seem to find one in my engine bay and WIS isn't helping, there's very little info on the fan that I can see. Is the fan ECU controlled in my car? If so do I just need to replace the whole fan assembly? This has been happening for a few weeks now.

I'm going to get the code reader on it over the weekend but someone here might have a better idea. I have tried searching through the forums but I've not seen any issues like this one.
Same me

Users who are viewing this thread

Top Bottom