dparisoe

I just had a local machanic replace the alternator and belt tensioner about a week ago. Ever since then my radiator fan, which is electric, has been very loud like it is running at max speed almost constantly. I don't see the cars temp going above 85c, and I don't ever remember hearing the fan like I do now.

anyone have any ideas what to check?

2004 c230 sport sedan

Carsy

Check around to see if any electrical connectors or wires have been dislodged or damaged allowing the fan to run constantly. Also check if fan blades have been damaged & if they are impinging on anything.
Failing that, check back with your mechanic & have any necessary repairs done at his expense.

dparisoe

Thanks for the reply, I have checked the fan and it doesn't look damaged and spins freely. I'll have check around for the wires, and stop by the shop and let them have a look at it.

David

krisv420

my fan never turns on