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      09-17-2022, 11:41 AM   #1
Soad
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2018 BMW 540i  [9.50]
Lights Not Working

Light Not Working As they Should be. Any Ideas ?
light on the right only works when braking
Left light onlylights up but does not brake.
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      09-17-2022, 07:47 PM   #2
I3LaZeN
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Did u get some type of coding done?
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      09-18-2022, 11:22 AM   #3
Joe-BMW33
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Yeah, it looks like a coding issue.
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      10-02-2022, 06:50 PM   #4
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Quote:
Originally Posted by I3LaZeN View Post
Did u get some type of coding done?
Nope. I wash the car and it started with the head light and the the headlights made it back and the rear went all woman like on me. The warning on the dash doesn't notify me of this until I'm doing 89mph and the 405frwy ad it say " reverse light malfunction"
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      10-03-2022, 10:31 AM   #5
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86% of the time an electrical issue on a contemporary BMW is because of an old/weak battery. Low voltage makes it do crazy things.

13% of the time it is a bad ground.

It's that last 1% that makes it challenging.

If it just started after you washed the car, then I'd start looking for something wet.
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      10-06-2022, 11:18 AM   #6
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Quote:
Originally Posted by LuvMyE92 View Post
86% of the time an electrical issue on a contemporary BMW is because of an old/weak battery. Low voltage makes it do crazy things.

13% of the time it is a bad ground.

It's that last 1% that makes it challenging.

If it just started after you washed the car, then I'd start looking for something wet.
yup
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      10-10-2022, 09:33 AM   #7
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Are you sure that the LEDs are ok?
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