
Fuel filler flap
Opening ........................................ .1 38
Fuel level
Calling up the range (on-board
computer) ...................................... 178
Fuel tank
Capacity ........................................ 310
Problem (malfunction) ................... 139
Fuses
Allocation chart ............................ .2 80
Before changing ............................ .2 79
Fuse box in the engine compart-
ment .............................................. 280
Fuse box in the front-passenger
footwell .......................................... 280
Important safety notes .................. 279
G Garage door opener
Clearing the memory ..................... 251
General notes ................................ 249
Important safety notes .................. 249
Opening/closing the garage door .. 251
Problems when programming ....... .2 51
Programming (button in the rear-
view mirror) ................................... 249
Synchronizing the rolling code ....... 250
Gasoline ............................................. 310
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 185
Genuine parts ...................................... 23
Glove box .......................................... .2 34
Google™ Local Search
see also Digital Operator's Man-
ual ................................................. .2 27
H
Handbrake
see Parking brake
HANDS-FREE ACCESS .......................... 78
Hazard warning lamps
Display message ............................ 214
Switching on/off ........................... 101
Head restraints
Adjusting ......................................... 91
Adjusting (manually) ........................ 92 Adjusting (rear) ................................ 92
Headlamps
Fogging up ..................................... 102
see Automatic headlamp mode
Heating
see Climate control
High beam flasher ............................ .1 00
High-beam headlamps
Adaptive Highbeam Assist ............. 101
Display message ............................ 200
Replacing bulbs ............................ .1 05
Switching on/off ........................... 100
Hill start assist .................................. 124
HOLD function
Activating ....................................... 156
Deactivating ................................... 156
Display message ............................ 205
Function/notes ............................ .1 56
Home address
see also Digital Operator's Man-
ual ................................................. .2 27
Hood
Closing .......................................... .2 55
Display message ............................ 213
Important safety notes .................. 254
Opening ......................................... 254
Horn ...................................................... 31
Hydroplaning ..................................... 147
I
Ignition lock
see Key positions
Immobilizer .......................................... 67
Indicator lamp
Replacing bulbs (rear) .................... 105
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 32
Settings ......................................... 183
Warning and indicator lamps ........... 32
Instrument cluster lighting .............. 174
Interior lighting
Control .......................................... .1 03
Overview ........................................ 102 Index 11

Turn signals (front) ........................ .1 05
Turn signals (rear) .......................... 105
Reporting safety defects .................... 27
Rescue card ......................................... 28
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 204
Warning lamp ................................. 222
see Fuel
Residual heat (climate control) ....... .1 18
Restraint system
Display message ............................ 195
Introduction ..................................... 39
Warning lamp ................................. 222
Warning lamp (function) ................... 40
Reverse gear (selector lever) ........... 131
Reversing feature
Panorama sliding sunroof ................ 85
Roller sunblind ................................. 86
Side windows ................................... 81
Roadside Assistance (breakdown) .... 25
Roller sunblind
Panorama roof with power tilt/
sliding panel ..................................... 86
Roof carrier ........................................ 238
Roof lining and carpets (cleaning
guidelines) ......................................... 265
Roof load (maximum) ........................ 314
Route guidance
see also Digital Operator's Man-
ual ................................................. .2 27
S
Safety
Children in the vehicle ..................... 53
see Occupant safety
Safety system
see Driving safety systems
SD card
Inserting ........................................ 232
Inserting/removing ........................ 232
Removing ....................................... 232
SD memory card
see also Digital Operator's Man-
ual ................................................. .2 27 Search & Send
see also Digital Operator's Man-
ual ................................................. .2 27
Seat belts
Adjusting the height ......................... 43
Cleaning ......................................... 264
Correct usage .................................. 42
Fastening ......................................... 43
Important safety guidelines ............. 41
Introduction ..................................... 40
Releasing ......................................... 43
Warning lamp ................................. 216
Warning lamp (function) ................... 43
Seats
Adjusting (electrically) ..................... 91
Adjusting (manually) ........................ 90
Adjusting (Performance Seat) .......... 93
Adjusting the 4-way lumbar sup-
port ................................................. .9 2
Adjusting the head restraint ............ 91
Cleaning the cover ......................... 264
Correct driver's seat position ........... 89
Folding the backrest (rear com-
partment) forwards/back .............. 236
Important safety notes .................... 89
Seat heating problem ...................... 94
Storing settings (memory func-
tion) ................................................. 98
Switching seat heating on/off ......... 93
Securing cargo .................................. 237
Selector lever
Cleaning ......................................... 264
Sensors (cleaning instructions) ....... 262
Service menu (on-board com-
puter) .................................................. 183
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 312
Coolant (engine) ............................ 312
Eng i
ne oil ....................................... 311
Fuel ................................................ 309
Important safety notes .................. 309
Refrigerant (air-conditioning sys-
tem) ............................................... 313
Washer fluid ................................... 313
Setting the air distribution ............... 11516
Index

Overview of climate control systems
General notes Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To prevent the windows from fogging up: R
switch off climate control only briefly R
switch on air-recirculation mode only briefly R
switch on the cooling with air dehumidifica-
tion function R
switch on the defrost windshield function
briefly, if required
The air-conditioning system or dual-zone auto-
matic climate control regulates the temperature
and the humidity of the vehicle interior and fil-
ters undesirable substances from the air.
The air-conditioning system or dual-zone auto-
matic climate control can only be operated
when the engine is running. Optimum operation
is only achieved with the side windows and pan-
orama roof with power tilt/sliding panel closed.
If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated ( Y
page 122).
The residual heat function can only be activated
or deactivated with the ignition switched off
( Y
page 118). Always keep the ventilation flaps behind the
side trim panel in the cargo compartment clear
( Y
page 105). Otherwise the vehicle will not be
ventilated correctly.
i Ventilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature ( Y
page 82). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
i The integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. A clogged filter reduces the
amount of air supplied to the vehicle interior.
For this reason, you should always observe
the interval for replacing the filter, which is
specified in the Maintenance Booklet. As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance Book-
let.
i It is possible that under certain circumstan-
ces the residual heat function may be activa-
ted automatically an hour after the SmartKey
has been removed in order to dry the aut o-
mat ic climate control. The vehicle is then ven-
tilated for 30 minutes.Overview of climate control systems 109
Climate control

instructions. You will see the current settings
of the various climate control functions.
DYNAMIC SELECT button (except
Mercedes-AMG vehicles) You can choose between various drive programs
with the DYNAMIC SELECT button
( Y
page 127).
If you have selected drive program E :R
when heating, the electrical heater booster is
deactivated and in the warming-up phase
heat output is reduced R
the rear window defroster running time is
reduced
Depending on the configuration, climate set-
tings may also be influenced in the drive pro-
gram I .
If you have selected drive program C or S , cli-
mate settings are not influenced.
ECO start/stop function During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. If you require the full climate control output,
you can switch off the ECO start/stop function
by pressing the ECO button ( Y
page 126).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes When the climate control is switched off, the air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switch off
climate control only briefly
Air-conditioning system X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 121).X
To switch on: turn control