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Loud radiator fan

21799 Views 8 Replies 6 Participants Last post by  rudeney
I have a 2005 C230. About 30 secs after it starts until about 30 secs after it is turned off it sounds like a jet engine is in there.

It doesn't matter if it is cold or warm when it starts, or if the a/c is on or off. I have located the problem, which is the radiator fan. I have gone through the forums and tried a few things offered. The things I have tried are as follows:

reset the a/c by pushing the defrost and recirc air buttons until the led light quits blinking

moved the fan itself to see if it was stuck, which it wasn't, it turned easily

jiggled the fan back and forth to see if it was loose, it was on correctly

tapped the relay with a screwdriver while the car was running to see if it would adjust, didn't work

changed out the fuse, still didn't change anything

I amabout to pull out my hair, please help
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After mine sat for about two days, I have Indi's same problem.

VERY loud, I wondered what people were looking at, so I turned down the radio and it truly sounds like a jet.
Sounds like mine is normal then!

It was our first 95-100 day around here and it had been sitting in the parking lot all day at the hospital.
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