Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

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 06-07-2012, 08:31 AM
resunoiz resunoiz is offline
Officially Welcomed to the 'Fest
Location: italy
 
Join Date: Jun 2012
Posts: 132
Mein Auto: z3 1.9 M44
Z31.9 electric engine speed(s) fan issue

My car is a 1.9 M44, without viscostatic, only electric 2-speed fan (directly assembled that way on bmw at its birth for AC post-montage).

Now, the mistery.
When engine turns hot, the double temperature switch should pull the fan at lower speed reaching 80 degrees, and at higher speed reaching 88 degrees.
But in my car the slower speed NEVER starts. You can only hear the higher speed.

If I jumper the thermostat connector in pins n1 and 2, it starts regularly. When i re-attach the connector to the thermostat, same issue: slower speed won't start.

Thermostat is NEW, and so hi-speed and lo-speed relays.
I'm now wondering if is a common "issue" of M44 without viscostatic, or there is something strange that can't be easily identified.

Can someone with my same engine configuration make a test?

Into your car (with AC off) the vents starts at the slower speed too, or only at higher as mine does?

Last edited by resunoiz; 06-08-2012 at 04:51 AM.
Reply With Quote
Advertisement
  #2  
Old 06-13-2012, 03:57 AM
resunoiz resunoiz is offline
Officially Welcomed to the 'Fest
Location: italy
 
Join Date: Jun 2012
Posts: 132
Mein Auto: z3 1.9 M44
solved!
SOLVED!!!!
the guys on my italian club (bmwdrivers.it) solved the mystery!!!

M44 motor had, at that time a DIFFERENT wirings during the years

Last edited by resunoiz; 06-28-2012 at 09:22 AM.
Reply With Quote
Reply

Bookmarks


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 10:41 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms