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Old 02-20-2016, 08:33 AM
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R320 CDI HELP PLEASE

Dear All,
I have a 2008 R class diesel the cooing fan dose not run. I am looking to locate the fan module I did not see it on the fan. Useing the OBDII it can be commanded ON. I have changed the temp sensor no fix Please help.
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Old 02-20-2016, 12:50 PM
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There should be a fuse for the power feed, check that.

Next, check for power and ground at the fan.

You could disconnect and power up the fan directly to make sure the motor is good.

Past that I'd have to see a wiring diagram.
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Old 02-20-2016, 08:17 PM
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R320 CDI

First thank you. I have checked the fuse it's good the fan will run at full speed if the temp sensor is disconnected or if air con is selected. It will not run at high coolant temprature . I have had a couple thermometer in the sea warning please advise. I have looked up and down for the so called FCM I can not find it nothing on the Fan.
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Old 02-21-2016, 07:28 AM
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Quote:
It will not run at high coolant temprature .
What kind of temp are you talking about?
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