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  #11  
Old 05-19-2020, 09:41 AM
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Hi
its a 2003 3.0d msport.
will check the from fuse to plug.

I do remember when i first got the x5 i had some
problems.
While using inpa i see activate fan.click on it and
it done nothing.
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  #12  
Old 05-19-2020, 09:54 AM
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Quote:
Originally Posted by daveking View Post
Hi
i got 14 volts both side of the big green fuses.
even removed the and checked for corrosion.

Thank you.
My 50amps fuse was Red.
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  #13  
Old 05-19-2020, 10:24 AM
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Quote:
Originally Posted by daveking View Post
Hi

its a 2003 3.0d msport.

will check the from fuse to plug.



I do remember when i first got the x5 i had some

problems.

While using inpa i see activate fan.click on it and

it done nothing.
Do you have a DME error?
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  #14  
Old 05-19-2020, 10:31 AM
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Ok
so i checked from fuse box to fan plug and there is a break some where.
run a live to the plug and the fan twitched.
so getting some where.

i need to do a scan now.

thank you all.

dave king
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  #15  
Old 05-19-2020, 10:37 AM
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Quote:
Originally Posted by daveking View Post
Ok
so i checked from fuse box to fan plug and there is a break some where.
run a live to the plug and the fan twitched.
so getting some where.

i need to do a scan now.

thank you all.

dave king
The scan will tell you that the fan is bad because it didn't receive the signal, but it is a false positive if the reason is no power to the fan. The DME will spin the fan at start up and and when the power is removed the fan will continue to spin. A DC motor when spinning becomes a generator when no power is provided. The DC power is the signal to the DME that the fan is good. If you don't have power at the fan connector but have power at the fuse box, you need to check the wiring from the fuse box to the fan.
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2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD
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  #16  
Old 05-19-2020, 10:45 AM
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Double check the fan connector so that wire is not broken or corroded near the connector pin. Then check the connector X10455 on fuse box. If a 6 mm2 wire was cut somewhere else it would likely be shorted to vehicle body and fuse burned.

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  #17  
Old 05-28-2020, 05:36 PM
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I'm having the same issue :(

Hello, I am having the same issue on my 2005 X5 (3.0D - Australian Right hand drive).

The Aux fan does half a turn when the AC is turned on but then never re-engages. Unplugging the sensor on the A/C HOT line (as it's been suggested on a separate thread here), turned the AC off (can tell by drop in engine revs and that 'AC was just turned off but air still blowing' smell in the car), it did not make the AUX fan go full speed.

I have also tried to disconnect a lower coolant sensor (which did nothing to affect the AC)

All of the above was done when car was at proper running temp.
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