Z3 Roadster (E36/7) Aux cooling fan - Bimmerfest - BMW Forums



Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > Z Series > E36/7 Z3 (1996-2002)

E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

Reply
 
Thread Tools Display Modes
  #1  
Old 11-18-2012, 07:10 PM
senikc senikc is offline
Registered User
Location: Milledgeville, Ga
 
Join Date: Oct 2012
Posts: 78
Mein Auto: 1994 Mercedes E320
Aux cooling fan

I have a 99 Z3, the electric aux fan in front of the radiator runs all the time. Should this run when engine is cold and no a/c is on?
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 11-18-2012, 07:40 PM
Blacklane Blacklane is offline
Officially Welcomed to the 'Fest
Location: Springfield, Ohio, USA
 
Join Date: Jun 2011
Posts: 2,077
Mein Auto: 1998 Z3 Roadster
Nope. It should only run for (a) temperature sensor on the radiator sensing above 91C, or (b) the air conditioning is on. It should then go to high speed if the coolant gets above 99C.

It could be a stuck relay. It would be the purple one or the yellow one in back. At least the yellow one can be swapped for a quick test.

Or it could be the temperature sensor on the side of the radiator. Just unplug it and see if the fan stops.
Attached Thumbnails
Click image for larger version

Name:	bmw-e36-relay-layout.jpg
Views:	102
Size:	57.5 KB
ID:	349983  
Reply With Quote
  #3  
Old 11-18-2012, 09:15 PM
senikc senikc is offline
Registered User
Location: Milledgeville, Ga
 
Join Date: Oct 2012
Posts: 78
Mein Auto: 1994 Mercedes E320
Aux cooling fan

Thanks for the info, I didn't think it should run.
Reply With Quote
Reply

See More Related BMW Stories


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > Z Series > E36/7 Z3 (1996-2002)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 12:24 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001- VerticalScope Inc. All rights reserved.