12-14-2013, 09:34 AM | #1 |
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rear turn signal bulb replacement
My car displayed the following message, "right rear turn signal malfunction. Have the System checked by the nearest BMW center".
The local dealership said they needed the car but they did not have a loner car for me. I'm too busy at work to be without a car so I'm hoping I can replace the bulb myself. Anyone know how to access and replace the bulb? The owner's manual wasn't much help.
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Last edited by lbjgh; 12-14-2013 at 09:44 AM.. |
12-14-2013, 10:05 AM | #2 |
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For the manual to be of assistance, you have to open and read it. It is very clear on how to replace a rear blinker bulb. It is even nice enough to list the bulb type right there.
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12-14-2013, 10:58 AM | #3 |
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hehe, I clearly missed that when I clicked the hyperlink that redirected me to pg. 254 (embeded in the PDF).
Thank you for the polite and helpful reponse.
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12-14-2013, 12:08 PM | #5 |
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I removed the tail light and the bulb was OK. Then I took a bit of emery cloth and cleaned the contacts... nadda.
I then switched the bulbs... same thing turn signal bulb did not work. After reassembling the housing and reinstalling it onto the car the light mysteriously worked again. After driving for a few blocks the fault reoccurred and the light stopped working so it looks like a trip to the dealer is in order. It is surprising to see the engineering BMW put in a simple tail light assembly! I wonder if the the small module in the tail light (red arrow) is also responsible for the fault. DOH
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12-16-2013, 08:37 AM | #6 |
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The little board is just for the LED lights in the tail light. A blinker malfunction is just when the light module sees an unexpected resistance on that light. Could be a flaky ground connection or bad light holder, or bad bulb. Does sound less straightforward than just a bulb replacement if swapping bulbs didn't work. The dealer can probably nail it down in short order.
If you wanted to DIY though: 1: Swap bulbs between sides to see if it follows the bulb. 2: Do the same with the carrier If fault "follows" either component then there is your problem, if it stays on the same side, then likely a grounding problem. |
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12-16-2013, 07:58 PM | #7 |
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Thanks for the suggestions evil. I can't get an appointment until the new year so I have some time to fiddle around before I get into the dealer.
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