Head light switch fault

UK forum for general and technical discussion about the Z3 roadster
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Patty
Joined: Thu 09 Feb, 2012 15:55
Posts: 38

  Z3 roadster 1.9i
Location: Wigton

Head light switch fault

Post by Patty »

I have a fault related to the dual operation of the head light switch. The switch works ok but the function to adjust the light level of the dash board is intermittent and will not now achieve full illumination.
Is it possible to remove the module which the switch is mounted in to get at the potentiometer to test it.
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colb
Joined: Sat 05 May, 2012 22:46
Posts: 690

  Z3 roadster 1.8 TU
Location: Newport South Wales UK

Re: Head light switch fault

Post by colb »

How to remove is in the knowledge base here viewtopic.php?f=18&t=35763

The photographs don't show because of the third party sharing issue with photobucket.
Colb
1999 BMW 1.8 Z3
2003 BMW 2.5 Z4
1998 Honda Deauville NT650V
Patty
Joined: Thu 09 Feb, 2012 15:55
Posts: 38

  Z3 roadster 1.9i
Location: Wigton

Re: Head light switch fault

Post by Patty »

Thanks for that, I'll give that a go now. Let you know how I get on.
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peter2b
Joined: Sat 01 Nov, 2014 18:47
Posts: 963

  Z3 roadster 2.2i
Location: cheshire

Re: Head light switch fault

Post by peter2b »

I had the same type of thing ended up getting a new switch
peterz3
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Dave L2
Joined: Tue 25 Jul, 2006 10:34
Posts: 576

  Z3 roadster 3.0i
Location: North Essex

Re: Head light switch fault

Post by Dave L2 »

When I stripped that dash out of mine to have the leather repaired, I found a fine white powder :shock: inside the dash below the headlight switch. I suspect this was the Bakelite in the switch breaking down. I also ended up replacing the switch. I did try disassembling it, but I just made things worse.
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