Well the lights been changed and they have apparently checked the other and found no issue, I asked if they had any inkiling why it had cracked but nada, but She said that BMW are very hot on warranty claims so it must have been legit or they would have rejected it, so im a happy bunny, only thoughts I have is the boot shutting as I tend to slam it shut instead of letting the soft close do its job, so I now drop it from 4" and let it shut itself