Garage Support

Post a Response

Mercedes C Class 180 Coupe KOMP SE (C203) 2004 - Radiator fan stuck on #

Posted by John Hancock on December 15, 2015, 6:25 pm

Year of Manufacture *: 2004
( Optional ) Engine Code or CC: 1800 petrol

Hi all
radiator fan stuck on, have fitted new fan assembly comes with looks like controller, bearings shot on old motor changed the coolant temp sensor on engine can't see any other sensors ie on rad so assume it uses engine ecu for info.
Anyone had this problem any help appreciated also i have e3 tec but no wiring diagrams on there.no fault codes. Not sure if this is linked but the ambient air temp sensor is reading 85 deg on the clocks inside the car.sensor reads 418 ohms again no imformation.
thanks john.

Re: mercedes c class 180 coupe komp se (C203) radiator fan stuck on

Posted by andyhyoung <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5148' width='330' height='300' border=0 style='border:none;'> on December 15, 2015, 8:09 pm, in reply to "mercedes c class 180 coupe komp se (C203) radiator fan stuck on"
Andrew Young

Couple of points to check.Can you read live data of a/con pressure.?A faulty pressure switch can send the fan full speed.(located on pipe joint,bottom of condenser,above engine tray).Also check continuity of thin signal wire from fan speed controller back to front SAM ,fuse/relay box.Any accident damage n/s front.?This is often where the wiring loom gets mashed.

Re: mercedes c class 180 coupe komp se (C203) radiator fan stuck on

Posted by John Hancock <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5588' width='330' height='300' border=0 style='border:none;'> on December 17, 2015, 3:43 pm, in reply to "mercedes c class 180 coupe komp se (C203) radiator fan stuck on"
John Hancock

Thanks for reply no damage to n/s. switch ok looks like multifunction checked price at dealers and told it will also need coding.decided to let customer take to dealers.

« Back to index

[ Garage Support ]