BMW 535i Owner's Manual page 171

Multi-channel playback is automatically acti‐
vated or deactivated, depending on the audio
track selected.
Volume
▷ "Speed volume": speed-dependent volume
control.
▷ "PDC": volume of the PDC signal compared
to the entertainment sound output.
▷ "Gong": volume of the signal, such as the
safety belt reminder, compared to the en‐
tertainment sound output.
Adjusting the volume
1. "CD/Multimedia", "Radio" or "Settings"
2. "Tone"
3. "Volume settings"
4. Select the desired volume setting.
5. To adjust: turn the controller.
6. To store: press the controller.
Resetting the tone settings
1. "CD/Multimedia", "Radio" or "Settings"
2. "Tone"
3. "Reset"
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