Multi-channel playback,surround
Choose between stereo and multi-channel playback, surround.
Setting multi-channel playback, surround
1. "CD/Multimedia", "Radio" or "Settings"
2. "Tone"
3. "Surround"

When surround is activated, multi-channel playback is simulated when a stereo audio track is played.
See also:
Removing ski bag
The ski bag can be completely removed, e.g., for
faster drying or to allow it to be put to other uses.
Removing ski bag
1. Pull the handle forward, arrow 1.
2. Take out the ski bag upward, arro ...
Safety
Both the coupe and convertible have front airbags plus side-impact airbags
built into the front seats. As required of all 2012 models sold in the U.S., the
640i has standard antilock brakes and an ...
TeleService Battery Guard
TeleService Battery Guard continually checks
the battery charge level of the vehicle. If the battery
charge level falls below a certain value, a
notification is automatically sent to your servic ...
