Xoutpost.com - Auxiliary fan

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uptfusion

06-24-2016 08:06 AM

Auxiliary fan

Anyone know what size is the auxiliary fan on a x5 4.4 2003?

upallnight

06-24-2016 09:27 AM

Putting a generic fan such as a Spal will not work on our BMW. The DME controls the BMW fan, whereas a Spal fan or any other non BMW fan will not be controlled by the DME. If the DME doesn't receive a signal from the fan, it will assume the fan is not working. It will not send a signal to the ac compressor to turn on.

If you are putting a fan on because your BMW didn't come with an Aux fan that is a different issue.

richardb

07-02-2016 02:39 PM

Here's a DIY guide if you're replacing your bad auxiliary fan. I bought the very affordable TYC unit on Amazon for $161 and it's working great.

https://www.youtube.com/watch?v=N_K0KPHsteA

Meinhold

07-02-2016 08:02 PM

Aux Fan

I just bought the same fan on partsgeek.com for $189 and it seems to good quality and works great.

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