Originally Posted by tracer bullet
It's not a huge sample size, but given the limited data I see 2 things: 1) You have a 50/50 chance of causing a problem when swapping out the angel eyes, and 2) If you have a problem it's a pretty safe bet (24 to 4) you caused it.
I think the issue is not so much knowing what to do, but getting one of the kit parts in a place that the housing won't go back together correctly. It may seem like it's down, you may think you know what to look for, the metal clips might go back in place - but it doesn't mean it's actually sealed.
Exactly. I asked my service guy to install a set for me and he said he wouldn't because BMW advises against opening the covers on e82 headlights because they are such a bitch to get back on and sealed properly. Apparently BMW technicians even have a 50-50 chance of getting it right - its just the way their built, to stay sealed permanently.