MID - CD to radio on its own

[entscheidend 0]

E39 - Full MID with phone

Why does the MID on CD swicth to radio quite often and on its own???? This is annoying

[jochen 4]

E39 - Full MID with phone

Why does the MID on CD swicth to radio quite often and on its own???? This is annoying

Bug in firmware of radio or MID.

Replace Radio or MID with newer unit with newer firmware version

This sort of fault would have been covered under warranty when the car was new...