- Safe driving
- Safelock mechanism 1, 2
- Safety
- Safety systems (warning lamp)
- SCAN
- Seasonally restricted
- Seat belts
- Seat covers, cleaning
- Seat heating
- Seats
- Seat ventilation
- Seek up/down (radio)
- Selective catalytic reduction
- Selective wheel torque control (four-wheel drive)
- Selector lever (automatic gearbox)
- Self-help
- Sending tone sequence
- Serial number (IMEI)
- Service interval display
- Service intervals
- Service position
- SET (instrument cluster)
- Set special destination in town
- Setup
- Short dialogue
- Show as favourite
- Showing TMC/TMCpro traffic information on map
- Side assist
- Side lights
- SIM card
- SIM card reader
- Single journey memory
- Ski bag
- SMS
- Snow chains
- Socket
- Software version
- SOS
- Sound
- Sound channel (multi-channel sound)
- Sound focus 1, 2, 3
- Sound system display, cleaning
- Source
- Spare key 1, 2
- Spare wheel 1, 2
- Special destination, entering
- Speech dialogue system
- Speed dialling (handset)
- Speed display
- Speed display on driving school vehicles
- Speedometer 1, 2
- Speed warning
- Speller for letters
- Speller for numbers
- Sport differential
- Stabilisation program
- Start/stop system
- START ENGINE STOP button (convenience key) 1, 2
- Starting (engine) 1, 2, 3
- Starting with jump leads
- Start location, setting
- Station name (radio)
- Station sorting (radio)
- Steering
- Steering wheel
- Storage compartments 1, 2
- Stored telephone number, dialling
- Storing destination (directory)
- Subtitles (DVD)
- Subwoofer (sound) 1, 2
- Sun blinds
- Sun roof
- Sun roof (tilting panorama roof)
- Sun visors
- Supplementary heater (air conditioner)
- Surround level 1, 2
- Suspension control
- Switching between calls
- Switching off (engine) 1, 2, 3
- Switching on/off
- Symbols
- System update
- S tronic® (automatic gearbox)