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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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Old 10-23-2016, 01:37 PM
wjbav wjbav is offline
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Location: Illinois
 
Join Date: Aug 2016
Posts: 8
Mein Auto: 2001 e39 525i
auxiliary fan

A new thing I have noticed on my 01 e39 after replacing a Chinese fan clutch with an OEM one, my aux fan runs more often now. It ran today after driving on the highway for about 20 minutes. I pulled back into my parking spot and I could hear the aux fan kick in. It sounded somewhat loud like a little lawn mower but quieter. The AC was not on and it was only about 73 degrees out. It ran for about a minute then shut off and them came right back on again, loud when first starting up. Is this normal?
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