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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Help, left back turn signal stopped working



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      01-12-2018, 07:41 PM   #1
zakaza
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Help, left back turn signal stopped working

Hi everyone,
I have a 2010 323i, my left back turn signal just stopped working after I replaced a burnt brake bulb. Also the brake light works when I press the brake but nothing lights up when I turn the lights on except for the portion that is attached to the trunk. Any help is appreciated.
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      01-12-2018, 07:54 PM   #2
djh2
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Quote:
Originally Posted by zakaza View Post
Hi everyone,
I have a 2010 323i, my left back turn signal just stopped working after I replaced a burnt brake bulb. Also the brake light works when I press the brake but nothing lights up when I turn the lights on except for the portion that is attached to the trunk. Any help is appreciated.
The brake lights are a common failure (at least in my 07) but itís usually the electrical contacts messing with the light controller rather than actually a bad bulb

You can replace the bulb holders usually, but that can be expensive compared to attempting to clean/repair

Try cleaning the metal contacts with some electrical contact cleaner. You should be able to find some in the auto part / home improvement / electronics stores.

There are also some other diy methods for cleaning electrical contacts you could find on the internet
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      01-12-2018, 08:15 PM   #3
zakaza
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Quote:
Originally Posted by djh2 View Post
The brake lights are a common failure (at least in my 07) but itís usually the electrical contacts messing with the light controller rather than actually a bad bulb

You can replace the bulb holders usually, but that can be expensive compared to attempting to clean/repair

Try cleaning the metal contacts with some electrical contact cleaner. You should be able to find some in the auto part / home improvement / electronics stores.

There are also some other diy methods for cleaning electrical contacts you could find on the internet
Thanks for the reply, do you mean the white plastic that holds the bulbs?
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      01-12-2018, 09:25 PM   #4
djh2
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Yes, remove this part: https://www.ecstuning.com/b-genuine-...i/63217211214/

Remove the light bulbs

Now clean the part where the bulbs touch the metal strips, or replace the part altogether.
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      01-12-2018, 09:27 PM   #5
djh2
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Quote:
Originally Posted by zakaza View Post
but nothing lights up when I turn the lights on except for the portion that is attached to the trunk.
I may have mis-read this earlier. Are you saying the "light bar" does not turn on when your headlights are on? If so, there may be an issue with the LEDs on the tail light, and this is a more involved repair or more expensive replacement.

Pictures would be helpful though
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      01-13-2018, 11:14 PM   #6
zakaza
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Quote:
Originally Posted by djh2 View Post
I may have mis-read this earlier. Are you saying the "light bar" does not turn on when your headlights are on? If so, there may be an issue with the LEDs on the tail light, and this is a more involved repair or more expensive replacement.

Pictures would be helpful though
Thank you for your help, I just checked it again and it wasn't properly pushed in all the way.
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      01-14-2018, 08:38 AM   #7
Efthreeoh
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Wrong viscosity rating of blinker fluid..
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission.
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