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BMW 3-Series (E90 E92) Forum
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*Passenger side brake lights satying on "dim" when my sidelights are on need help?
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| 12-14-2011, 02:55 AM | #1 |
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"If there ain't no smoke, there ain't no poke"
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*Passenger side brake lights satying on "dim" when my sidelights are on need help?
Passenger side brake lights staying on dim when my sidelights are on anyone else had this problem?!
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| 12-14-2011, 03:44 AM | #2 |
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Major General
 
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You have a faulty earth on the n/s light cluster. Remake / clean it.
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Ian
Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2 |
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| 12-14-2011, 08:48 AM | #3 |
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Lieutenant Colonel
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Your (pre-LCi) brake lights are designed to glow dimly when the sidelights are on, so it's not a problem with the passenger side, but with the drivers side. What happens is that the brake light feed is pulsed on and off very quickly to make the brake light glow, but then when you hit the brakes, you get full voltage and it brightens to normal intensity.
So +1 on the earth, but I'd look on the drivers side first. Mike |
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