Sun roof exploded

[dreierc]

So my sun roof exploded by itself on the highway. Didn't see any rocks or nothing come flying, other cars where far ahead. No bridges no nothing. Just a loud *bang* and small glass-bits came suddenly everywhere, in the necks and heads of me and the passenger. Really nice surprise! Luckily we weren't hurt.

I drove the car directly to the dealership (which was luckily only 5 min away, since it was raining, though I did close the inner cover quickly).
Inspecting showed damage to the paint on the roof, trunk lid, rear spoiler and right side (next to the trunk lid).

What a day. The dealer couldn't tell either, what caused the sun roof to break suddenly. Luckily, the insurance seem to be covering everything.

Has this happened to anyone else? I suspect there was some kind of production-fault with the glass, un-normal tension or something.. I doubt anything hit it when driving

[GtiGyver]

I say it was a piece of the Russian space station.

[lopealle]

damn terrorist (other car makers) they targeted your bimmer man j/k. atleast you guys are ok

[Lester]

This happened to another member about a year ago, posted the same issue.

[Nifty]

I'd agree with you OP, I assume it's tempered glass and it sounds like either a defect in production, or perhaps you picked up a small nick somewhere and eventually the whole thing went.