When heater blower on, main fan (radiator) constantly on.

nick73

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Your Mercedes
w209, CLK 280 Convertible
I noticed that my main fan on radiator is a bit noisy, a suspect motor/bearing perhaps. The annoying thing is, that I can't have the A/C blower on in car, without this main fan coming on.

That's not normal, is it?

2000 plate w220, by the way.

Cheers:)
 

LostKiwi

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Your Mercedes
'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
I noticed that my main fan on radiator is a bit noisy, a suspect motor/bearing perhaps. The annoying thing is, that I can't have the A/C blower on in car, without this main fan coming on.

That's not normal, is it?

2000 plate w220, by the way.

Cheers:)
Yes normal on some cars.
 

alexanderfoti

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W221 S65 AMG - W204 C63 AMG + Various other MB's
Yes normal, when AC is on, the suction fan runs at low duty cycle constantly.
 
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nick73

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w209, CLK 280 Convertible
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thanks chaps......will invest in a new fan motor.
 


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