Mercedes-Benz A-Class 2020 Operator's Manual page 425

Run-flat characteristics
MOExtended tires ................................ 274
S
Safety systems
see Driving safety system
Seat ...................................................... 83, 96
4-way lumbar support ........................... 85
Adjusting (electrically) ........................... 84
Adjusting (Seat Comfort) ....................... 84
Adjusting the seat backrest angle
(rear passenger compartment) .............. 98
Backrest (rear) locking .......................... 98
Configuring the settings ........................ 87
Correct driver's seat position ................ 83
Folding the backrest (front
passenger seat) forwards ...................... 95
Folding the backrest (rear passenger
compartment) back ............................... 97
Folding the backrest (rear) forwards ..... 96
Operating the memory function ............. 91
Resetting the settings ............................ 87
Setting options ...................................... 14
Seat belt ..................................................... 32
Fastening ............................................... 35
Protection .............................................. 32
Seat belt adjustment
Activating/deactivating ......................... 36
Function ................................................ 36
Seat belt warning
see Seat belts
Seat belts ................................................... 36
Activating/deactivating seat belt
adjustment ............................................ 36
Care .................................................... 269
Reduced protection ............................... 33
Releasing ............................................... 36
Seat belt adjustment (function) ............. 36
Warning lamp ........................................ 36
Seat cover (Care) ..................................... 269
Seat heating
Activating/deactivating ......................... 87
Seat ventilation
Switching on/off ................................... 88
Selecting a gear
see Changing gears
Selector lever
see DIRECT SELECT lever
Self-test
Automatic front passenger front air‐
bag shutoff ............................................ 42
Sensors (Care) ......................................... 268
Service center
see Qualified specialist workshop
Service interval display
see ASSYST PLUS
Setting a speed
see Cruise control
Setting the date format .......................... 226
Setting the distance unit ........................ 227
Shift paddles
see Steering wheel paddle shifters
Shifting gears
Gearshift recommendation .................. 144
Side airbag ................................................. 37
Side impact protection ........................... 184
Side windows ............................................. 71
Child safety lock in the rear
passenger compartment ....................... 59
Closing .................................................. 71
Index 423