See also:

Safety notes
Do not remove the cover The BMW CD/DVD player is a Class 1 laser product. Do not operate if the cover is damaged; otherwise, severe eye damage can result.◀ ...

Closing
1. Return the rear seat backrest to the upright seating position and engage it. Ensure that the lock is securely engaged When folding back the backrest, be sure that it locks in place securel ...

General malfunctions
▷ CD/DVD changers and players have been optimized for performance in vehicles. In some instances they may be more sensitive to faulty CDs/DVDs than stationary devices would be. ▷ ...