Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Volume/tone adjustments, function - GF82.60-P-2003PMU
Model 203.0 /2 /7 as of 24.4.04 with CODE (528) HIGH Class USA
Model 203.0 /2 /7 as of 24.4.04 with CODE (530) COMAND APS USA (with navigation system)
In connection with the COMAND, operating, display and control unit (A40/3) a distinction must be made between audio sources and service sources:
Audio sources are:
- Radio
- CD player
Service sources are for example:
- Telephone system
- Voice control system (VCS)
- Voice output with navigation system
Volume setting
Changing the volume of an audio source has an identical effect on all other audio sources. The volume is also jointly regulated within the service sources in the same manner.
The volume of voice output for navigation can be changed during voice output. An adjustable distance (in the "Settings" menu) between the volume of the audio signal and voice output is automatically adhered to. This means that voice output remains audible even in the case of loud audio output.
Tone setting
Manual tone settings (treble, bass) can be made for each audio source on the COMAND operating, display and control unit (A40/3). Selected settings for voice output during navigation also influence the voice control system (VCS). The following tone optimizations can be called up with code (810) Sound System:
- Standard
- Low ambience
- Medium ambience
- High ambience
- Language
- Driver optimized
With a change in sound emphasis (balance, fader) the relative ratio of the volume of the individual speakers changes. The signal processing required for the volume/sound settings and final amplification of the audio signals are taken over either by the audio component integrated in the COMAND operating, display and control unit (A40/3) or by the sound amplifier (A2/13) (with code (810) Sound system).
| Radio mode, function | GF82.60-P-2001PMU | ||
| CD-player mode, function | up to 31.5.05 | GF82.60-P-2002PMU | |
| as of 1.6.05 | GF82.60-P-2002PMV | ||
| Telephone mode, function | With code (388) portable cellular telephone, UHI system | GF82.85-P-2007PMU | |
| Starguide, function | GF82.85-P-2014PMU |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.