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11-17-2023, 08:22 AM | #1 |
Petrolhead
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Drives: 24 X3 M40i/14 550i/08 Z4 3.0si
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Light Dimmer Nonfunctional
Just noticed my dimmer wheel on the light switch isn't working. is this a common fault? They're not cheap as new, so wondering if buying a used one will have the same issue.
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2024 X3 M40i 2014 550i 2008 Z4 3.0si 6MT 2011 Z4 35si (sold) |
11-17-2023, 01:56 PM | #2 |
Private First Class
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I'm not a computer person & I'm not sure if the Z4 E85 can be affected by this but, some BMW's can have a milage tamper dot caused when a new or used LCM is installed.
Please see: https://www.bing.com/videos/rivervie...F457&FORM=VIRE You know, if it was me, I'd simply try giving the wheel area of the dimmer a good cleaning with a spray can of Electrical Contact Cleaner. It really sounds like the contacts are either gummed up or tarnished. |
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11-17-2023, 10:44 PM | #3 |
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Mine failed when the car was almost new back in 2007 and was replaced under warranty.
A new LCM (light switch contains the entire light control module) is big bucks - like $400 new. I'm pretty sure it doesn't need to be coded because I replaced the switch in my 2nd Z4M when I was having panel dimming issues, and it worked fine without coding. I like the contact cleaner suggestion above. Good luck!
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11-20-2023, 07:34 AM | #4 |
Petrolhead
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Drives: 24 X3 M40i/14 550i/08 Z4 3.0si
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That explains then the high cost. Will try the contact cleaner suggestion first and go from there. Thank you.
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2024 X3 M40i 2014 550i 2008 Z4 3.0si 6MT 2011 Z4 35si (sold) |
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