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bmw e53 x5 4.4i 2001

ruben325ci

By ruben325ci,
in BMW X5 Series Forum

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ruben325ci Newbie

ruben325ci

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Hi recently bought a x5 but noticed that radiator fan its always on as soon I turn the engine on
Also the idle its just below 1k revs I would say about 900rpms in idle on "P"

Any ideas?  it runs good but just this that's annoying me

Greydog Grand Master

Greydog

Posted
Posted

Your X5 has 2 fans one is engine driven via a viscous clutch the second is at the front of the rad and is electric. The electric fan takes control inputs from the thermostat, air temp, aircon pressure switch and a couple of others from memory. Does it run all the time or just at start then stop, it is designed to test run at ingnition on. If its running constantly you need someone with diagnostics to read which input is causing the issue.

Regarding tick over my 4.4 tick over was around 6 to 700 rpm my 4.6 is the same, for comparison my AMG's were around that mark too.

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