
Dashboard fuse box ....................... 371
Fuse box in the cargo compart-
ment .............................................. 372
Fuse box in the engine compart-
ment .............................................. 371
Fuse box in the front-passenger
footwell .......................................... 371
Important safety notes .................. 370
G
Garage door openerClearing the memory ..................... 335
General notes ................................ 332
Important safety notes .................. 332
Opening/closing the garage doo r..3 35
Programming (button in the rear-
view mirror) ................................... 333
Synchronizing the rolling code ....... 333
Gasoline ............................................. 410
Genuine parts ...................................... 22
Glove box ...........................................3 07
H
HANDS-FREE ACCESS.......................... 94
Hazard warning lamps ......................127
Head restraints
Adjusting (electrically) ................... 112
Adjusting (manually) ......................1 11
Adjusting (rear) .............................. 112
Adjusting the fore-and-aft posi-
tion manually ................................. 111
General notes ................................ 111
Important safety notes .................. 111
Installing/removing (rear) .............. 112
Head-up display
Adjusting the brightness ................ 255
Displays and operating .................. 242
Function/notes .............................2 41
Important safety notes .................. 241
Selecting displays .......................... 254
Setting the position ....................... 254
Storing settings (memory func-
tion) ............................................... 122
Headlamps
Cleaning system (notes) ................ 413
Fogging up ..................................... 128 see Automatic headlamp mode
Heating
see Climate control
High beam flasher .............................1 26
High-beam headlamps
Adaptive Highbeam Assist ............. 127
Changing bulbs .............................. 131
Display message ............................ 274
Switching on/off ........................... 126
Hill start assist .................................. 157
HOLD function
Activating ....................................... 195
Activation conditions ..................... 194
Deactivating ................................... 195
Display message ............................ 282
Function/notes .............................1 94
General notes ................................ 194
Hood
Closing ...........................................3 39
Display message ............................ 288
Important safety notes .................. 338
Opening ......................................... 338
Horn ...................................................... 32
HUD
see Head-up display
Hydroplaning ..................................... 180
I
Ignition lock
see Key positions
Immobilizer .......................................... 78
Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 301
Indicator lamps
see Warning and indicator lamps
Insect protection on the radiator .... 339
Instrument cluster
Overview .......................................... 33
Warning and indicator lamps ........... 34
Instrument cluster lighting .............. 238
Interior lighting
Control ...........................................1 29
Emergency lighting ........................ 130
Overview ........................................ 129
Reading lamp ................................. 129
Index11

Remote controlGarage door opener ....................... 332
Programming (garage door
opener) .......................................... 333
Replacing bulbs
Important safety notes .................. 130
Overview of bulb types .................. 130
Removing/replacing the cover
(front wheel arch) .......................... 131
Reporting safety defects .................... 27
Rescue card ......................................... 28
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 278
Warning lamp ................................. 299
Restraint system
Display message ............................ 268
Introduction ..................................... 42
Warning lamp ................................. 298
Warning lamp (function) ................... 43
Reversing feature
Panorama sliding sunroof .............. 102
Roller sunblinds ............................. 103
Side windows ................................... 98
Tailgate ............................................ 92
Reversing lamps (display mes-
sage) ................................................... 274
Roadside Assistance (breakdown) .... 24
Roller sunblind
Panorama roof with power tilt/
sliding panel .................................. 103
Rear side windows ......................... 319
Roller sunblinds (panorama roof
with power tilt/sliding panel)
Operating ....................................... 104
Roof carrier ........................................ 317
Roof lining and carpets (cleaning
guidelines) ......................................... 352
Roof load (maximum) ........................ 415
S
Safety
Children in the vehicle ..................... 60
see Operating safety
SD memory card
Selecting ........................................ 249 Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 47
Adjusting the height ......................... 46
center rear-compartment seat ......... 47
Cleaning ......................................... 351
Correct usage .................................. 45
Fastening ......................................... 46
Important safety guidelines ............. 44
Introduction ..................................... 44
Releasing ......................................... 47
Warning lamp ................................. 292
Warning lamp (function) ................... 48
Seats
Adjusting (electrically) ................... 110
Adjusting the 4-way lumbar sup-
port ................................................ 112
Adjusting the head restraint .......... 111
Calling up a stored setting (mem-
ory function) .................................. 122
Cleaning the cover ......................... 351
Correct driver's seat position ........ 108
Folding the backrest (rear com-
partment) forwards/back ...... 309, 310
Important safety notes .................. 109
Seat heating .................................. 112
Seat heating problem .................... 114
Seat ventilation .............................. 114
Seat ventilation problem ................ 115
Storing settings (memory func-
tion) ............................................... 122
Switching seat heating on/off ....... 112
Switching seat ventilation on/off .. 114
Securing a load
see Securing cargo
Securing cargo .................................. 312
Selector lever
Cleaning ......................................... 350
see Automatic transmission
Sensors (cleaning instructions) ....... 348
Service menu (on-board com-
puter) .................................................. 252
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 412
Coolant (engine) ............................ 412
Engine oil ....................................... 411
16Index

Fuel ................................................ 409
Important safety notes .................. 409
Refrigerant (air-conditioning sys-
tem) ............................................... 414
Washer fluid ................................... 413
Settings
Factory (on-board computer) ......... 256
On-board computer ....................... 252
Side impact air bag ............................. 50
Side marker lamp (display mes-
sage) ................................................... 274
Side windows
Cleaning ......................................... 347
Convenience closing feature ............ 99
Convenience opening feature .......... 99
Important safety information ........... 98
Opening/closing .............................. 98
Problem (malfunction) ................... 101
Resetting ....................................... 100
Reversing feature ............................. 98
Ski and snowboard bag .................... 309
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 86
Changing the programming ............. 84
Checking the battery ....................... 86
Convenience closing feature .......... 100
Convenience opening feature .......... 99
Display message ............................ 290
Door central locking/unlocking ....... 83
Important safety notes .................... 82
KEYLESS-GO start function .............. 84
Loss ................................................. 87
Mechanical key ................................ 85
Overview .......................................... 82
Positions (ignition lock) ................. 153
Problem (malfunction) ..................... 87
Starting the engine ........................ 155
Smartphone
Starting the engine ........................ 156
Snow chains ...................................... 377
Socket (12 V)
Cargo compartment ....................... 322
Center console .............................. 321
General notes ................................ 321
Rear compartment ......................... 321 Special seat belt retractor
.................. 61
Specialist workshop ............................ 27
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 255
Digital ............................................ 245
In the Instrume
nt cluster ................. 33
Segments ...................................... 238
Selecting the display unit ............... 255
see Instrument cluster
Standing lamps
Display message ............................ 274
Switching on/off ........................... 126
Start/Stop button
Starting the engine ........................ 156
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 155
STEER CONTROL .................................. 78
Steering
Display message ............................ 289
Warning lamps ............................... 303
Steering Assist and Stop&Go Pilot
(DISTRONIC PLUS)
Display message ............................ 284
Steering assistant STEER CON-
TROL
see STEER CONTROL
Steering wheel
Adjusting (electrically) ................... 116
Adjusting (manually) ...................... 115
Button overview ............................... 35
Buttons (on-board computer) ......... 239
Cleaning ......................................... 350
EASY ENTRY/EXIT feature ............. 117
Important safety notes .................. 115
Steering wheel heating .................. 116
Storing settings (memory func-
tion) ............................................... 122
Steering wheel heating
Problem (malfunction) ................... 117
Switching on/off ........................... 116
Steering wheel paddle shifters ........ 167
Stowage areas ................................... 306
Index17

Door controlpanel
FunctionPage
:r 45=
Stores settings for the seat,
exterior mirrors and steer-
ing column
121
;Adjusts the seats electri-
cally
110
=c Seat heating112
?sSeat ventilation114
AOpens the door89
B%&Unlocks/locks
the vehicle
89
CWOpens/closes the
rear left side window
98
DW Opens/closes the left
side window
98
FunctionPage
E7Zª\
Adjusts and folds the exte-
rior mirrors out/in electri-
cally
119
FW Opens/closes the
right side window
98
GW Opens/closes the
rear right side window
98
Hn Override feature for
the controls in the rear
compartment
66
Ip Opens/closes the
tailgate
96
40Door control panel
At a glance

ProblemPossible causes/consequences andMSolutions
The engine cannot be
started using the
SmartKey.The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary
(
Ypage 363).
or
XJump-start the vehicle (Ypage 365).
or
XConsult a qualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The
SmartKey is in the vehi-
cle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 86) and replace it if nec-
essary (
Ypage 86).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist work-
shop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
88SmartKey
Opening and closing

poses an increased risk of injury or even fatalinjury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
!To avoid damage to the seats and the seat
heating, observe the following information:
Rkeep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
Rclean the seat covers as recommended;
see "Interior care".
Rdo not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools. The seats should only be occupied by
passengers, if possible.
Rwhen the seat heating is in operation, donot cover the seats with insulating mate-
rials, e.g. blankets, coats, bags, seat cov-
ers, child seats or booster seats.
!Make sure that there are no objects in the
footwell under or behind the seats when
moving the seats back. There is a risk that
the seats and/or the objects could be dam- aged.
iThe rear-compartment head restraints
can be removed (
Ypage 112).
Vehicles without the through-loading fea-
ture: the head restraints cannot be
removed from the rear compartment seats.
For more information, contact a qualified
specialist workshop.
iFurther related subjects:
REASY-PACK quickfold rear bench seat
(
Ypage 309)
Adjusting the seats electrically
Electrically adjustable seats with
memory function
:Head restraint height
;Backrest angle
=Seat height
?Seat cushion length
ASeat cushion angle
BSeat fore-and-aft adjustment
iFurther related subjects:
RYou can store the seat settings using the
memory function (
Ypage 122).
RIf PRE-SAFE®is triggered, the front-
passenger seat will be moved to a better
position if it was previously in an unfav-
orable position (
Ypage 59).
Vehicles with AMG Performance Seat: the
height of the head restraints cannot be adjus-
ted.
Electrically adjustable seats without
memory function
:Backrest angle
;Seat height
110Seats
Seats, steering wheel and mirrors

Adjusting the heightofthe head
restraints electri cally
XTo adjust thehea drestrain theight :slide
th eswitch for head restrain tadjustmen t
(
Ypage 110) up or down in th edirection of
th earrow.
Vehicles wit hAM GPerformance Seat: th e
height of th ehead restraints canno tbe adjus-
ted.
Adjusting the rear seat head restraint
height
XOnce th ehead restrain tis fully lowered,
press release catch :.
XTo raise:pull thehead restrain tup to th e
desired position .
XTo lower:press release catch :and push
th ehead restrain tdown until it is in th e
desired position .
Installing and removing rear head
restraints
XReleaseth erear seat backr estand fol dit
slightly forwards (
Ypage 309).
XTo remove:pull thehead restrain tup to
th e stop.
XPress release catch :and pull th ehead
restrain tout of th eguide s.
XTo re-install :insert th ehead restrain t so
that th enotches on th ebar are on th elef t
when viewed in th edirection of travel .
XPush thehead restrain tdown until you hear
it engage in position .
XFold backth erear seat backr estuntil it
engage s.
Adjusting the 4-way lumbar support
:To raiseth ebackr estcontour
;Tosofte nth ebackrest contour
=To lower th ebackr estcontour
?To harden th ebackrest contour
You can adj ustthecontour of th efron tseat
backrest sindividually to provide optimum
support for your back.
Switching the seat heating on/off
Switching on/off
GWARNIN G
Repeatedly switching on th eseat heating can
caus eth eseat cushion and backrest pads to
become ver yhot .The healt hof person swit h
limite dtemperature sensitivit yor alimite d
abilit yto reac tto excessivel yhigh tempera-
112Seats
Seats, steering wheel and mirrors

tures 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.
Driver's and front-passenger seat
Rear seats
The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches down
from level3to 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.
XTurn the SmartKey to position 1or 2in the
ignition lock (
Ypage 153).
XTo switch on: press button:repeatedly
until the desired heating level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iIf the battery voltage is too low, the seat
heating may switch off.
iIf drive program E(Ypage 166) is selec-
ted, the power of the seat heating is
reduced.
Seats113
Seats, steering wheel and mirrors
Z