E90Post
 


Lux Angel Eyes
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Fan blower help



Reply
 
Thread Tools Search this Thread
      10-12-2013, 04:35 AM   #1
imygaf
Second Lieutenant
4
Rep
206
Posts

Drives: e92 325i
Join Date: Nov 2012
Location: Glasgow

iTrader: (1)

Fan blower help

I posted this in general section but had no response so trying here.

Last night was driving home about 10.30 and for the first time since summer the car gave the warning sound for low temp. Then when i was leaving for work this morning windscreen was all iced up. So winters officially here.

Anyway, this morning when i put on the blower to defrost the screen i was reminded of a strange problem that i had last winter and then forgot about. I pressed screen demist button which should turn the blower on full speed right?

Well when i press it the blower does come on and the display shows it as max speed, but it doesnt feel or sound like its on max. However as soon as i start to drive off it suddenly comes to life the way it should be. I dont even have to actually move the car. As soon as i bring the clutch to biting point there is a sudden rush of air. But then when driving the speed occasionally drops for a few seconds and then fixes itself. I have tried manually adjusting the speed to max but the same thing happens. If i rev the engine in neutral it doesnt make any difference, only when its in gear. Any ideas how to fix this?
Appreciate 0
      10-12-2013, 07:01 AM   #2
turbomike
enjoying my e91 mmmhhh
turbomike's Avatar
United Kingdom
0
Rep
58
Posts

Drives: 335d e91
Join Date: Apr 2010
Location: northeast

iTrader: (0)

I had a problem a few years ago with my blower sometimes it would work ok but other it would vary in speed or not come on for 5/10 mins when i checked the blower the resister pack on the back of it was shot and also my connecter was all chard these things pull a lot of amps I ended up replacing the whole unit and re crimping the connectors with large spades, so far its never repeated the problem.
Appreciate 0
      10-12-2013, 07:17 AM   #3
imygaf
Second Lieutenant
4
Rep
206
Posts

Drives: e92 325i
Join Date: Nov 2012
Location: Glasgow

iTrader: (1)

Is that a straight forward diy job? Dont suppose you could point me towards a guide?

Ill have a search anyway
Appreciate 0
      11-23-2013, 05:12 PM   #4
RT-290
New Member
0
Rep
6
Posts

Drives: 2006 325i
Join Date: Jan 2013
Location: WI

iTrader: (0)

I had the same problem. I replaced the resistor but still had it. Could have saved the $100 for the part by testing my battery. When the voltage falls the car will cut out functions not deemed necessary, including the fan. Charge your battery overnight first to see if that fixes the problem.

Joel
Appreciate 0
      11-23-2013, 08:15 PM   #5
Digitalize
Photographer
Digitalize's Avatar
United Kingdom
23
Rep
1,171
Posts

Drives: E91 320D M Sport TiAg
Join Date: Jun 2013
Location: Weymouth

iTrader: (0)

As said, try charging first, but if not, most likely the burnt resistor and the entire unit being changed isn't a bad idea, as they do wear/rust.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Forum Jump


All times are GMT -4. The time now is 06:29 AM.




e90post
e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST