This is a genuine BMW Professional Audio user manual / handbook.
It is for the BMW 1 Series (E81 - E82 - E87 - E88)
It is for the BMW 3 Series (E90 - E91- E92 - E93)
PLEASE !! View picture of head unit to ensure it compares with yours.
It covers -
Radio.
Compact Disc Player.
Mini Disc Player.
Compact Disc Changer.
It has very slight marking to the outer covers.