Bit of a Thickun here

brassoiler said:

Ok guys I am in the middle of putting a new water pump on the P38 and Im going to change the fan belt upon removal of the radiator I noticed I have the fan belt which drives alternator water pump etc and then I have a little belt which is driven off the main pulley my question is what is this belt for please

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wammers said:

The extra belt is driving the aircon compressor. I take it your car is a diesel.

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