Originally Posted by GregW / Oregon
*early cars with option 752 (INDIVIDUAL AUDIO SYSTEM)
The amplifier for the M Individual Audio System overheats and turns off. The affected amplifiers are not equipped with a cooling fan. (Vehicles produced up to March 2008)
Install an improved amplifier (including a cooling fan) for the M Individual Audio System.
65 12 7 842 409 - Amplifier for M Individual Audio System
--per BMW_tech on Bimmerfest
Thanks for posting this information. Did the technician that posted this TSB information on Bimmerfest provide the TSB number? I have an appointment at the dealer tomorrow for them to drain the oil and check that either enough or too much is in afer their break-in service last week. If I have the TSB number to point them to, I can see if my car is affected and needs the fix.
Thanks again for this valuable information.