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3-2. Using the audio system
Optimal use of the audio system
The illustration below is for left-hand drive vehicles.
The button positions and shapes may differ slightly for right-hand
drive vehicles.
Changing the sound quality
Adjusting the Automatic Sound Levelizer (ASL)
Press
The ASL switches between on and off modes each time
is pressed.
ASL automatically adjusts the volume and tone quality according to
the noise level as you drive your vehicle.
Adjusting sound quality and volume balance
Changing sound quality modes
Press
Pressing
"BAS""MID""TRE""FAD""BAL"
304
IS250/220d/200d_EE
Adjusting the sound qual-
Adjusting
.
.
changes the sound mode in the following order:
the
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