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Tail light burnt bulb requires entire assembly replacement ???

12K views 14 replies 9 participants last post by  phattyduck  
#1 ·
So, the light on the trunk lid burnt out (as can be seen in the picture) and my first internet search found that this is not something cheap like a light bulb; instead it sounds like the entire light assembly need to be replaced. Is that the case in your experiences as well? That just seems like is a very poor design for maintainability and failed in less than 5 years and only 47k miles.

any suggestions on how to replace it without having to buy an entire new assembly?
Thanks
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#2 · (Edited)
One of the forum members made this video. Seems you do need to replace the whole unit but it's supposed to last a long time from what I have read. Maybe you can jiggle the wires or remove the connector and hit it with some dielectric grease? He has the links to buy them in the video.
 
#12 ·
It is lit by LEDs (parking lights on those center assembly and the outer tail lights. They should have a 50k+ hour life span. In this case, there is probably a small mechanical failure in the assembly (broken solder joint, etc.) that has cause the problem. Light bulbs, on the other hand will wear out much faster in most circumstances.
Is there any explanation for why it can't be repaired? Has anyone tried?

E.g., cut open the housing, reflow solder or isolate and replace the failed component.
Most people don't have the capabilities to do the repair. It very likely repairable with the right equipment and some time.

-Charlie
 
#8 ·
Is there any explanation for why it can't be repaired? Has anyone tried?

E.g., cut open the housing, reflow solder or isolate and replace the failed component.

My lights on my 2011 are all working fine right now, but I promise when one fails I'll be getting the Dremel and electrical / soldering equipment out before spending $100+ on a lightbulb.
 
#13 ·
This strip is not a bulb. It is an OLED strip: optical LED. It is probably wired into the fixture under the mistaken belief that it would never fail. LEDs are supposed to have a super long life but I have had multiple LED bulbs fail possibly due to poor connections which cannot withstand the vibration of car doors opening and closing. Audi invented and uses these strips. they are not supposed to fail.
 
#15 ·
OLED = Organic LED, not optical LED. Different (sort of) technology to a regular LED. That isn't what is in the tail light. They are standard LEDs lighting the ends of special diffusion tubes that transmit and emit the light in the pattern you see.

The rest is correct there - they aren't 'supposed' to fail, but there are rare times where they do. Otherwise, LEDs slowly lose brightness with time (the 50k hour lifespan I listed above is a 'half-life' where they are at half of the original brightness).

-Charlie
 
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#14 ·
Those are the LED tail lights, so they are different than the incandescent bulb lights. The regular lights are just a simple and easy bulb swap. My car has the regular lights, so I just swap in new bulbs. If this was my car, I would take the assembly off and look inside to see how it is built. You probably could replace parts yourself if you feel comfortable soldering in new LEDs.