[ZPrime]

There were definitely people with both US LCI and Euro LCI tail lights who have had issues with the car reporting "bulb" problems, the dashboard and iDrive throw "bad lightbulb" errors sporadically. Seems to primarily be related to the turn signals themselves but not 100% on that. I don't think these are people who retrofitted the lights to pre-facelift cars, I'm pretty sure I've seen complaints on stock cars.

I bought my Euro tails only about 10 months after getting my car, so I hope they aren't part of one of those bad batches. So far I've had no problems (knock wood), but I specifically didn't sell my stock tails in case I had problems with the Euro ones. Dealership won't help you (or warranty-cover) with your retrofitted tails, even if they are still technically original BMW parts.