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Re: Cooling fan (archive)

[ Follow Ups ] [ 5-series (E28) Message Board ] [ Msg. Board FAQ ]

Posted by demet on August 26, 1999 at 15:05:13:

In Reply to: Re: Cooling fan posted by Mark Bradley on August 26, 1999 at 13:07:54:

I believe that if the low side works then the resistor should be ok. I would verify that there is power to the high speed wire at the aux fan-resistor terminal when you jump the wires at the temp sensor. If you don't find voltage there then you can suspect the relay. Since it is clicking then that part of the curcuit should be ok but there may be corrosion on the relay contacts.

demet
87 528e

: I fixed mine by replacing the resisor on the side of the electric fan. My symptoms were similar to yours.

: : I was checking the operation of the cooling fan per Bentleys. When I jump the wires for low speed the fan runs, but when I jump the wires for high speed the relay clicks and no fan operation. Does this indicate a bad relay?

: : Garry
: : 84 533i




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