- A/C (air conditioner)
- ABS
- Acceleration figures
- Accelerator pedal
- Accessories 1, 2
- Activating online traffic data licence
- Active Cylinder Management
- Active lane assist
- Adapter cable for Audi music interface
- Adaptive air suspension/sport
- Adaptive cruise control
- Adaptive light
- AdBlue
- Additional information (radio)
- Adjusting head restraints
- Adjusting the sound 1, 2
- Adjusting the volume
- Advanced key
- Airbag
- Air conditioner
- Air distribution, adjusting (automatic air conditioner)
- Air recirculation mode (automatic air conditioner)
- Air suspension
- Air transport 1, 2
- Alarm system
- Alterations to the vehicle
- Alternative frequency
- Alternative route
- Alternator (warning lamp)
- Announcement (traffic programme) 1, 2
- Anti-dazzle exterior mirrors
- Anti-dazzle interior mirror
- Anti-freeze
- Anti-lock brake system
- Anti-theft alarm system
- Anti-theft wheel bolts
- Armrest
- Ashtrays
- ASR
- Audi braking guard
- Audi connect
- Audi connect services
- Audi drive select
- Audi lane assist
- Audi music interface
- Audio file
- Audio player
- Audio track (DVD)
- AUTO
- Auto Lock (central locking system)
- Automatic gearbox
- Automatic gearbox (tiptronic)
- Automatic keypad lock (handset)
- Auxiliaries (efficiency programme)
- Auxiliary heating/ventilation
- AV
- Average fuel consumption
- Average speed
- Axle loads