Convertible Rear Window Blower
Moderator: martauto
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M3KUK
- E30 Zone Regular

- Posts: 637
- Joined: Fri Jan 22, 2016 11:00 pm
- Location: NW England
My blower isn't working, any tips?
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jimf
- E30 Zone Regular

- Posts: 627
- Joined: Mon Mar 10, 2008 11:00 pm
1. Check fuse
2. Check wiring to switch *
2. put a 12v supply straigt to the blower plug see if it works.
3. Swap the switch
I'm not sure if there is a relay involved.
*My blower wasn't working, one of the wires to the button had obviously broken when I looked behind the switch.
Too be honest you are not missing much, they are next to useless anyway.
2. Check wiring to switch *
2. put a 12v supply straigt to the blower plug see if it works.
3. Swap the switch
I'm not sure if there is a relay involved.
*My blower wasn't working, one of the wires to the button had obviously broken when I looked behind the switch.
Too be honest you are not missing much, they are next to useless anyway.
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paultv
- E30 Zone Squatter

- Posts: 1545
- Joined: Mon Apr 21, 2014 11:00 pm
- Location: Auf dem Schnee: Germany
Relay is attached to the fan/motor unit.
Paul
Paul
4th May 1990 325i Convertible.
BMW E30 Cabriolet Best Mod Ever:
https://bmwe30cabriolet-wdm.blogspot.com/
BMW E30 Cabriolet Best Mod Ever:
https://bmwe30cabriolet-wdm.blogspot.com/
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Brianmoooore
- E30 Zone Team Member

- Posts: 49359
- Joined: Mon Jan 10, 2005 11:00 pm
Add the top position microswitch to the above. This is the one that stops the blower working when the roof is down.jimf wrote:1. Check fuse
2. Check wiring to switch *
2. put a 12v supply straigt to the blower plug see if it works.
3. Swap the switch
I'm not sure if there is a relay involved.
Pull the relay, and link 30 to 87 of its base with a short piece of wire, with the ignition on, as a first check.
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M3KUK
- E30 Zone Regular

- Posts: 637
- Joined: Fri Jan 22, 2016 11:00 pm
- Location: NW England
Had a look at this today, can hear a click from the relay when switch pressed, looks like motor is knackered.
