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Faulty back light led repair

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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Zed Baron
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Faulty back light led repair

Post by Zed Baron » Fri Dec 02, 2022 8:33 pm

Hi folks, while my Z hibernates in the garage for the winter, I've bought a peugeot rcz to play about with. Now they have a sealed led third brake light which is astronomical in price to replace. I've found a guy that offers a service repairing them, considerably cheaper than buying a new one. I contacted him and asked whether he has done any E89 rear lights (similar device) he hasn't but thinks he could. Has anyone got any more information on the backlight units? Could potentially be a good contact for someone not wanting to fork out on new replacement ones.
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B21
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Faulty back light led repair

Post by B21 » Fri Dec 02, 2022 11:03 pm

I suspect if anyone knows it will be Robbie…the main problem I’ve seen is the two parts separating and water getting in through the crack and then corrosion setting in..not sure how he’d getting over that…revealing the units I suspect would be a challenge..there’s no public documentation AFAIK about how they are built…best of luck to him :thumbsup:
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is :thumbsup:

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RobbiZ4
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Faulty back light led repair

Post by RobbiZ4 » Sat Dec 03, 2022 10:45 am

B21 wrote: Fri Dec 02, 2022 11:03 pm I suspect if anyone knows it will be RobbiZ4…
Well, that was another interesting project in the past, when I reworked my backlight clusters to "Dynamic Winkers" with a dozen of selectable light sequences. :rofl:

Different attempts to get the clusters carefully opened...
https://www-zroadster-com.translate.goo ... st-2616736

Best result:
https://www-zroadster-com.translate.goo ... st-2685476

Development of an ATMEL CPU based controller unit with software for each cluster...
https://www-zroadster-com.translate.goo ... st-2734789

i.e. AUDI & AMG sequences:
https://www-zroadster-com.translate.goo ... st-2755295

Glueing micro cracks:
https://www-zroadster-com.translate.goo ... st-2756589

Closing thoughts, materials & procedure:
https://www-zroadster-com.translate.goo ... st-2766120

Final result:
https://www-zroadster-com.translate.goo ... st-2768760

Autumn 2021 review and upgrade:
https://www-zroadster-com.translate.goo ... st-3340625
527741-98151cec64efbcbf03a1c2986fa900ef.jpg
527741-98151cec64efbcbf03a1c2986fa900ef.jpg (30.11 KiB) Viewed 274 times
Summary:
Not an easy job, very time consuming with big risks to destroy more than before. Not worth regarding the current price of about 200€ for a new cluster.
Last edited by RobbiZ4 on Sat Dec 03, 2022 1:28 pm, edited 1 time in total.
Pardon, je suis Allemand :oops:
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E89 Roof Maintenance
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Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
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B21
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Faulty back light led repair

Post by B21 » Sat Dec 03, 2022 12:23 pm

I’ll try the glueing strategy on my old pair that cracked 👌
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is :thumbsup:

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RobbiZ4
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Faulty back light led repair

Post by RobbiZ4 » Sun Dec 04, 2022 12:25 am

B21 wrote: Sat Dec 03, 2022 12:23 pm I’ll try the glueing strategy on my old pair that cracked 👌
Good luck. But get it completely dried before starting.

Already existing corrosion can't be repaired in any way. And keep care on re-mounting it. The seals have to be carefully pulled into the trunk before fixing the 2 or 3 nuts.
Pardon, je suis Allemand :oops:
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E89 Roof Maintenance
viewtopic.php?t=130932

Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
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B21
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Faulty back light led repair

Post by B21 » Sun Dec 04, 2022 12:30 am

RobbiZ4 wrote: Sun Dec 04, 2022 12:25 am
B21 wrote: Sat Dec 03, 2022 12:23 pm I’ll try the glueing strategy on my old pair that cracked 👌
Good luck. But get it completely dried before starting.
2 years in a dry house long enough? :tumbleweed: :thumbsup: :rofl:
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is :thumbsup:

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RobbiZ4
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Faulty back light led repair

Post by RobbiZ4 » Sun Dec 04, 2022 12:33 am

B21 wrote: Sun Dec 04, 2022 12:30 am
RobbiZ4 wrote: Sun Dec 04, 2022 12:25 am
B21 wrote: Sat Dec 03, 2022 12:23 pm I’ll try the glueing strategy on my old pair that cracked 👌
Good luck. But get it completely dried before starting.
2 years in a dry house long enough? :tumbleweed: :thumbsup: :rofl:
No, absolutely not long enough. Take another decade. :rofl:
:thumbsup:
Pardon, je suis Allemand :oops:
:ant:
E89 Roof Maintenance
viewtopic.php?t=130932

Y3 Roof Diagnostic System
viewtopic.php?f=23&t=129048
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B21
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Faulty back light led repair

Post by B21 » Sun Dec 04, 2022 11:29 am

RobbiZ4 wrote: Sun Dec 04, 2022 12:33 am
B21 wrote: Sun Dec 04, 2022 12:30 am
RobbiZ4 wrote: Sun Dec 04, 2022 12:25 am Good luck. But get it completely dried before starting.
2 years in a dry house long enough? :tumbleweed: :thumbsup: :rofl:
No, absolutely not long enough. Take another decade. :rofl:
:thumbsup:

OK..Wilco
:thumbsup: :rofl:
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is :thumbsup:

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