2014 MERCEDES-BENZ C-Class SEDAN lumbar support

Switching the exterio
rlighting
delayed switch-off on/off (on-
board computer )............................ 216
Switching the surround lighting
on/off (on-board computer) ..........216
Turn signals ................................... 116
see Interior lighting
see Replacing bulbs
Light sensor (display message) .......232
Loading guidelines ............................262
Locking see Centra llocking
Locking (doors)
Automatic ........................................ 83
Emergency locking ........................... 83
From inside (central locking
button) ............................................. 82
Locking centrally
see Centra llocking
Locking verification signal (on-
board computer) ............................... 217
Low-beam headlamps Changing bulbs .............................. 122
Display message ............................ 230
Setting for driving abroad
(symmetrical) ................................. 114
Switching on/off ........................... 115
Lumbar support
Adjusting ....................................... 103
Adjusting the 4-way lumbar
support .......................................... 103
Luxury head restraints .....................102 M
M+S tires ............................................ 316
Malfunction message see Display messages
Matte finish (cleaning instructions) 294
mbrace Call priority .................................... 277
Display message ............................ 225
Downloading destinations
(COMAND) ..................................... 277
Downloading route s....................... 280
Emergency call .............................. 274
General notes ................................ 273
Geo fencing ................................... 281Locating
astolen vehicl e............... 279
MB info call button ........................276
Remote vehicle locking ..................278
Roadside Assistance button ..........276
Search &Send ............................... 278
Self-test ......................................... 274
Speed alert .................................... 280
System .......................................... 274
Triggering the vehicle alarm ........... 281
Vehicle remote malfunction
diagnosi s....................................... 279
Vehicle remote unlocking ..............278
Mechanical key
Function/notes ................................ 78
Locking vehicle ................................ 83
Unlocking the driver's door ..............83
Memory card (audio) .........................211
Memory function ............................... 110
Message memory (on-board
computer) .......................................... 222
Messages see Display messages
Mirrors
see Exterior mirrors
see Rear-view mirror
see Vanity mirror (in the sun visor)
Mobile phone
Menu (on-board computer) ............211
Modifying the programming
(SmartKey) ........................................... 77
MOExtended run-flat system ...........301
Mounting wheels Lowering the vehicle ......................342
Mounting anew wheel ................... 341
Preparing the vehicle .....................338
Raising the vehicle .........................339
Removing awheel .......................... 341
Securing the vehicle against
rolling away ................................... 339
MP3
Operation ....................................... 211
see separate operating instructions
Multifunction display
Function/notes ............................. 206
Permanent displa y......................... 216
Multifunction steering wheel
Operating the on-board computer .205
Overview .......................................... 3312
Index

Reporting safety defects
....................26
Reserve (fuel tank) see Fuel
Reserve fuel
Display message ............................ 236
Warning lamp ................................. 256
see Fuel
Residual heat (climate control) ........141
Restraint system see SRS (Supplemental Restraint
System)
Reverse gear
Engaging (automatic transmission) 154
Reversing feature
Panorama sliding sunroo f................ 91
Roller sunblinds ............................... 93
Side windows ................................... 88
Sliding sunroo f................................. 91
Trunk lid .......................................... .84
Roadside Assistance (breakdown) ....23
Roller blind see Roller sunblind
Roller sunblind
Panorama roof with power tilt/
sliding panel ..................................... 93
Rea rside windows ......................... 269
Rea rwindow .................................. 269
Roof carrier ........................................ 267
Roof lining and carpets (cleaning
guidelines) ......................................... 297
Roof load (maximum) ........................358
Route (navigation) see Route guidance (navigation)
Route guidance (navigation) ............209 S
Safety Childre ninthe vehicle ..................... 59
Child restraint systems ....................59
Occupant Classification System
(OCS) ............................................... 47
Overview of occupant safety
systems ........................................... 40
Safety system
see Driving safety systems Seat belts
Adjusting the driver's and front-
passenger sea tbelt ......................... 56
Adjusting the height ......................... 56
Belt force limiters ............................ 58
Cleaning ......................................... 297
Correct usage .................................. 55
Emergency Tensioning Devices ....... .58
Fastening ......................................... 56
Important safety guidelines .............54
Releasing ......................................... 57
Safety guidelines ............................. 41
Switching belt adjustment on/off
(on-board computer) ......................218
Warning lamp ................................. 248
Warning lamp (function) ................... 57
Seats
Adaptive sea tbackrests (AMG
vehicles) ........................................ 103
Adjusting (electrically). ..................100
Adjusting (manually and
electrically). ................................... 100
Adjusting lumba rsuppor t.............. 103
Adjusting the 4-way lumbar
support .......................................... 103
Adjusting the head restraint ..........101
Cleaning the cover .........................297
Correct driver's seat position ........... 98
Important safety notes ....................99
Seat heating problem ....................105
Seat ventilation problem ................105
Storing settings (memory function) 110
Switching sea theating on/off .......104
Switching seat ventilation on/off ..105
Sensors (cleaning instructions) .......295
Service menu (on-board computer) .215
Service products Brake fluid ..................................... 355
Coolant (engine) ............................ 356
Engine oil ....................................... 354
Fuel ................................................ 351
Important safety notes ..................351
Refrigerant (air-conditioning
system) .......................................... 357
Washer fluid .................................. .357
Service work
see ASSYST PLUS Index
15

X
To lower: press release catch 0002and push
the head restraint down until it is in the
desired position.
Installing/removing the rear seat head
restraints 3 X
Release the rea rseat backrest and fold it
slightly forwards (Y page 265).
X To remove: pull the head restraint up to
the stop.
X Press release catch 0002and pull the head
restraint out of the guides.
X To re-install: insert the head restraint so
that the notches on the bar are on the left
when viewed in the direction of travel.
X Push the head restraint down until you hear
it engage in position.
X Fold back the rear seat backrest until it
engages. Adjusting the lumbar support
You can adjust the contour of the fron tseats
so as to provide optimum support for your
back. X
Move adjustment lever 0002in the direction
of the arrow until the desired backrest
contour is achieved. Adjusting the 4-way lumbar support
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. 0002
To raise the backrest contour
0003 To soften the backrest contour
0022 To lower the backrest contour
0021 To harden the backrest contour Adaptive seat backrests (AMG
vehicles)
You can adjust the contour of the front seat
backrests individually so as to provide
optimum support for your back.
3 Only for vehicles with the through-loading feature. Seats
103Seats, steering wheel and mirrors Z

0002
To adjust the upper back support
0003 To adjust the contour of the backrest in
the lumbar region
0022 To adjust the lateral structure and support
of the seat
X Make sure that the SmartKey is in position
2in the ignition lock.
i Repeat the adjustmen tifthe seat no
longer has the desired contour after a
certain amount of time. Switching the seat heating on/off
Activating/deactivating G
WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to excessively high
temperatures may be affected or they may
even suffer burn-like injuries. There is a risk
of injury.
Therefore, do not switch the seat heating on
repeatedly.
The three red indicator lamps in the button
indicate the heating level you have selected.
i If the battery voltage is too low, the seat
heating may switch off. Driver's and front-passenger seat
The system automatically switches down
from level
3to level 2after approximately
eight minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the SmartKey is in position
1or 2in the ignition lock.
X To switch on: press button0002repeatedly
until the desired heating level is set.
X To switch off: press button0002repeatedly
until all the indicator lamps go out. 104
SeatsSeats, steering wheel and mirrors