Repairing tail light reflector plastic

Post your E12 technical questions and comments here. Please, no off-topic posts.

Moderators: Mike W., Pierre

Post Reply
bigperm206
Posts: 31
Joined: Tue Jan 06, 2009 10:53 am

Repairing tail light reflector plastic

Post by bigperm206 »

The reflector plastic which holds the four bolts which holds the tail light assembly to my car has broken/crumbled and now I am not getting a good seal between the body and the tail light assembly. This means I am getting water in my rear foot wells.

Is there an epoxy/glue which is best for repairing the plastic reflector piece so it will be able to hold the four bolts and I can get a good water tight seal again? Maybe some type of marine epoxy? Or, is there a better fix for this problem. Thanks
User avatar
socalfiver
Posts: 229
Joined: Wed Jul 21, 2010 12:31 pm
Location: Los Angeles, CA

Post by socalfiver »

Same thing happened to the bottom 2 screws on my left taillight.

I have no recommendation for what will hold, but J-B Weld did not hold for me. I've yet to try another epoxy, and am scouring the yards for a good used assembly. They occasionally pop up cheap on Ebay, and there's a set of NOS assemblies for under $200, which is a steal. if I had a job, I'd be ordering those.
"Get it while you can." -Janis Joplin

1980 528i Automatic, "Frau Blucher"
1982 BMW R100RS
1982 633csi 5 speed
User avatar
Domingo
Posts: 371
Joined: Wed Jan 07, 2009 5:25 pm

Remember not to...

Post by Domingo »

Tight them to hard as I did the first time and cracked the tail light cover...

:oops:
T.Hanson
Posts: 1696
Joined: Wed Jul 26, 2006 7:39 am

Post by T.Hanson »

My experience with most plastic parts: glove box latch, tail lights, defy simple gluing. Maybe drilling peg inserts, fiberglass gob, goop, sand,...or buy new and be done with it.
User avatar
Mike W.
Posts: 2889
Joined: Wed Aug 30, 2006 12:12 am
Location: Sonoma County

Post by Mike W. »

It depends on how bad they're broken. I've had some success with epoxy, but not great. And if you have any distance to span you'll need to reinforce it with wire or something like that, epoxy alone is too fragile when it's thin like that. And you can't get it too thick because then you'll have problems getting the taillight to seal and not leak which is probably why you're there in the first place!

There may or may not be some deals here from one of my E28 friends. And it does say to make offer, so make offer, there probably aren't a lot of people beating the doors down for E12 parts. All he can do is say no, LOL.

http://www.mye28.com/viewtopic.php?t=84377
Mike W.



02 525ita. Wife's, aka grocery getter
02 530i. New to the fleet, 3 pedals.
03 QX4, AKA the Datsun. Finally got the 4WD vacationmoble to stop smoking.
07 Xterra. Still on the DL, a purchase from hell.
Post Reply