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-2003R
MODELS 203.0 /2 /7 up to 23.4.04 with CODE (352a) COMAND operating and display system with CODE (491) U.S. version
With reference to 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 and voice control system (VCS) (code 813).
- 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 interval is automatically maintained (in menu "Settings") between the audio signal volume and the voice output volume. This means that voice output remains audible even in the case of loud audio output.
Tone setting
The COMAND operating, display and control unit (A40/3) allows manual tone settings (bass/treble) for each audio source. Selected settings for voice output during navigation also influence the voice control system (VCS) (code 813).
In addition to this the following tone settings can be invoked with code (810) sound system:
- STANDARD
- Ambient small
- Ambient medium
- Ambient large
- Language
- Driver optimized
With a change in sound emphasis (balance, fader) the ratio of the volume of the individual speakers changes. The signal processing required for the volume and tone settings is done by the audio component integrated in the COMAND operating, display and control unit (A40/3). Final amplification of the audio signals is accomplished by the sound amplifier (A2/13).
| Operating, display and control unit, location/ task/design/function | GF82.85-P-3114R | ||
| Voice output, function | GF82.85-P-3001R | ||
| Data transfer between COMAND and instrument cluster, function | GF82.85-P-3008R |
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.