Audi A4: Global functions
Additional function buttons
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Fig. 21 Right side of the multifunction steering wheel
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Fig. 22 MMI On/Off knob with joystick function
Adjusting the volume
You can adjust the volume of an audio source or a system message (for example, from the voice recognition system) when the sound is playing.
- To increase or decrease the volume, turn the right thumbwheel (3) fig. 27 upward or downward, or turn the On/Off knob > fig. 22 to the right or left.
- To mute, push the right thumbwheel or the On/Off knob.
Selecting the previous/next track or station
- Press the
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button (4) or
briefly press
the On/Off knob to the left/right.
Fast forward/rewind
- Press and hold the
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button
(4), or
press the On/Off knob to the left or right until
the desired playback position is reached.
Quick access steering wheel button
Depending on vehicle equipment, the button (5) may provide quick access to various functions.
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button
You can program the .png)
button with
various functions.
- To bring up the function that is currently set,
press the
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button. - To perform the function that is currently set,
press and hold the
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K button, or: - Applies to MMI: Select on the home screen: VEHICLE
- Settings & Service > Steering wheel button assignment.
- Select and confirm the desired function.
Switching the voice recognition system on or off
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button (2)
Using the telephone functions
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button (1)
WARNING
Adjust the volume of the audio system so that signals from outside the vehicle, such as police and fire sirens, can be heard easily at all times.
READ NEXT:
Personalization
Users
General information
Applies to: vehicles with personalized user settings
Depending on vehicle equipment and your country,
your vehicle may be able to manage various
users in the MMI. Each user w
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Microphone Unit in Front Roof Module -R164-, Removing and Installing
The Microphone Unit in Front Roof Module -R164- in the Front
Interior Lamp -W1- is comprised of the Interior Microphone
-R74-, the Left Front Microphone -R140- and the Right Front
Microphone -R141-. The individual microphones can be replaced
separately.
Removing
- Turn off the ignition and
A/C Technology Basic Principles
Physical Principles
The four known states of water also apply to air
conditioning system refrigerants.
1 - Gaseous (invisible)
2 - Vapor
3 - Liquid
4 - Solid
When water is heated in a container (heat absorption), water
vapor can be seen to rise. If the vapo
