
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 76
Exhaust pipe (cleaning instruc-
tions) .................................................. 383
Exhaustive discharging (high-volt-
age battery) ...................................... .394
Exterior mirrors
Adjusting ....................................... 117
Anti-dazzle mode (automatic) ....... .118
Folding in when locking (on-board
computer) ...................................... 296
Folding in/out (automatically) ....... 118
Folding in/out (electrically) ........... 118
Out of position (troubleshooting) ... 118
Parking position ............................. 119
Resetting ....................................... 118
Storing settings (memory func-
tion) ............................................... 120 F
Fault message see Display messages
Filler cap
see Fuel filler flap
Fire extinguisher ............................... 387
First-aid kit ......................................... 386
Fitting a wheel
Fitting a wheel ............................... 416
Lowering the vehicle ...................... 417
Preparing the vehicle ..................... 414
Raising the vehicle ......................... 415
Removing a whee l.......................... 416
Securing the vehicle against roll-
ing away ........................................ 414
Flat tyre
MOExtended tyre s......................... 388
Preparing the vehicle ..................... 388
TIREFIT kit ...................................... 389
see Emergency spare wheel
Floormat ............................................. 372
Foglamps (extended range) .............. 125
Folding the rear bench seat for-
wards/back ....................................... 354
Fording
Off-road ......................................... 198
On flooded roads ........................... 197 Frequencies
Garage door opener ....................... 369
Mobile phone ................................. 433
Two-way radio ................................ 433
Front-passenger front airbag deac-
tivation
Display message ............................ 311
Front-passenger front airbag deac-
tivation system
Operation ......................................... 51
Problems ......................................... 55
System self-test ............................... 54
Fuel
Additives ........................................ 437
Consumption information .............. 438
Consumption statistics .................. 284
Displaying the current consump-
tion ................................................ 285
Displaying the range ...................... 285
Driving tips .................................... 194
Fuel gaug e....................................... 32
Grade (petrol) ................................ 436
Important safety notes .................. 436
Low outside temperatures ............. 438
Notes for Mercedes‑ AMG vehi-
cles ................................................ 437
Problem (malfunction) ................... 179
Quality (diesel )............................... 438
Refuelling ....................................... 175
Tank content/reserve fue l............. 436
Fuel filler flap
Opening ......................................... 177
Opening (PLUG-IN HYBRID vehi-
cles) ............................................... 177
Fuel filter (white display message) .. 318
Fuel level
Calling up the range (on-board
computer) ...................................... 285
Gaug e.............................................. 32
Fuel tank
Capacity ........................................ 436
Problem (malfunction) ................... 179
Fuses
Allocation chart ............................. 402
Before changing ............................. 402
Dashboard fuse box ....................... 402
Fuse box in the engine compart-
ment .............................................. 403 Index
11

Pulling away
General notes ................................ 161
Trailer ............................................ 161
Pulling away (automatic transmis-
sion) ....................................................1 61Q
QR code Mercedes-Benz Guide App ................. 1
Rescue card ..................................... 28
Qualified specialist workshop ........... 28R
RACETIMER (on-board computer) .... 298
Radiator cover ................................... 374
Radio
Selecting a station ......................... 287
see separate operating instructions
Radio-based vehicle components
Declaration of conformity ................ 27
Rain closing feature
Sliding sunroof ............................... 102
Rain closing feature (panorama
sliding sunroof) ................................. 103
RBS (Recuperative Brake System)
Warning lamp ................................. 340
Reading lamp ..................................... 127
Rear bench seat
Folding the bench seat forwards/back ............................................... 355
Rear compartment
Setting the air vents ..................... .155
Setting the temperature ................ 141
Rear foglamp
Display message ............................ 314
Switching on/off ........................... 122
Rear seat
Adjusting ....................................... 111
Rear window heating
Problem (fault) ............................... 145
Switching on/off ........................... 144
Rear window wiper
Replacing the wiper blade .............. 133
Switching on/off ........................... 131
Rear-compartment seat belt sta-
tus indicator ........................................ 48 Rear-view mirror
Anti-dazzle mode (automatic) ....... .118
Dipping (manual) ........................... 117
Recuperative Brake System
Driving safety systems ..................... 43
Important safety notes .................... 43
Refuelling
Fuel gauge ....................................... 32
Important safety notes .................. 175
Notes for Mercedes‑ AMG vehi-
cles ................................................ 437
Refuelling (PLUG-IN HYBRID vehi-
cles) ............................................... 176
Refuelling process ......................... 176
see Fuel
Remote control
Auxiliary heating/ventilation .......... 151
Changing the batteries (auxiliary
heating) ......................................... 152
Garage door opener ....................... 367
Programming (garage door
opener) .......................................... 367
Replacing bulbs
General notes ................................ 128
Important safety notes .................. 128
Overview of bulb type s.................. 128
Removing/replacing the cover
(front wheel arch) .......................... 129
Replacing the battery (auxiliary
heating remote control) .................... 152
Rescue card ......................................... 28
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 318
Warning lamp ................................. 347
Residual heat (climate control) ........ 146
Restraint system
Display message ............................ 309
Introduction ..................................... 43
Warning lamp ................................. 346
Warning lamp (function) ................... 44
Rev counter ........................................ 281
Reversing camera
Cleaning instructions ..................... 383
Display in the multimedia system .. 233
Function/note s............................. 232 18
Index

With both axles on the ground .......4
01
Towing eye ......................................... 387
Traffic Sign Assist
Activating/deactivating the warn-ing function ................................... .290
Display message ............................ 325
Function/notes ............................ .242
Important safety notes .................. 242
Instrument cluster display ............. 243
Trailer coupling
see Towing a trailer
Trailer towing
7-pin connector ............................ .278
Blind Spot Assist ............................ 246
Cleaning the trailer tow hitch ......... 383
Coupling up a trailer ..................... .275
Decoupling a trailer ....................... 276
Driving tips ................................... .273
Important safety notes .................. 272
Lights display message .................. 313
Mounting dimensions .................... 446
Parktronic ...................................... 225
Power supply ................................. 277
Problem (fault) ............................... 279
Trailer loads ................................... 447
Transmission
see Automatic transmission
Transmission position display ......... 168
Transmission position display
(DIRECT SELECT lever) ......................168
Transporting the vehicle .................. 401
Travelling uphill
Brow of hill ..................................... 202
Driving downhill ............................ .202
Maximum gradient-climbing capa-
bility ............................................... 202
Trim pieces (cleaning instruc-
tions) ................................................. .384
Trip computer (on-board com-
puter) ................................................. .284
Trip meter
Calling up ....................................... 284
Resetting (on-board computer) ...... 285
Turn signals
Changing bulbs (front) ................... 130
Switching on/off ........................... 123 TV
Operating (on-board computer) ..... 288
see Separate operating instructions
Two-way radio
Frequencies ................................... 433
Installation ..................................... 433
Transmission output (maximum ).... 433
Type identification plate
see Vehicle identification plate
Tyre inflation compressor
see TIREFIT kit
Tyre pressure
Calling up (on-board computer) ..... 411
Display message ............................ 330
Not reached (TIREFIT) .................... 391
Reached (TIREFIT) .......................... 391
Recommended ............................... 408
Tyre pressure loss warning
General notes ................................ 410
Important safety notes .................. 410
Restarting ...................................... 410
Tyre pressure monitor
Checking the tyre pressure elec-
tronically ........................................ 411
Function/note s............................. 411
General notes ................................ 411
Important safety notes .................. 411
Radio type approval for the tyre
pressure monitor ........................... 413
Restarting ...................................... 412
Warning lamp ................................. 350
Warning message .......................... 412
Tyres
Changing a whee l.......................... 413
Checking ........................................ 406
Direction of rotation ...................... 414
Display message ............................ 330
General notes ................................ 418
Important safety notes .................. 405
Information on driving .................... 405
M+S tyres ...................................... 407
MOExtended tyre s......................... 407
Replacing ....................................... 413
Service life ..................................... 406
Storing ........................................... 414
Tyre size (data ).............................. 418
Tyre tread ...................................... 406
Wheel and tyre combinations ........ 419 22
Index

Always have work on electrical and electronic
components carried out at a qualified special-ist workshop.
If you make any changes to the vehicle elec-
tronics, the general operating permit is ren-
dered invalid.
! There is a risk of damage to the vehicle if:
R the vehicle becomes stuck, e.g. on a high
kerb or an unpaved road
R you drive too fast over an obstacle, e.g. a
kerb or a pothole in the road
R a heavy object strikes the underbody or
parts of the chassis
In situations like this, the body, the under-
body, chassis parts, wheels or tyres could be
damaged without the damage being visible.
Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no
longer withstand the strain they are designed for.
If the underbody panelling is damaged, com-
bustible materials such as leaves, grass or
twigs can gather between the underbody and
the underbody panelling. If these materials
come in contact with hot parts of the exhaust
system, they can catch fire.
In such situations, have the vehicle checked
and repaired immediately at a qualified spe-
cialist workshop. If, upon continuing your
journey, you notice that driving safety is
impaired, pull over and stop the vehicle imme- diately, paying attention to road and traffic
conditions. In such cases, consult a qualified
specialist workshop. Declarations of conformity
Wireless vehicle components The following information applies to all compo-
nents of the vehicle and the information sys-
tems and communication devices integrated
into the vehicle which receive and/or transmit
radio waves:
The components of this vehicle that receive
and/or transmit radio waves are compliant with
the basic requirements and all other relevant
conditions of Directive 1999/5/EC. You can
obtain further information from any Mercedes-
Benz Service Centre. Electromagnetic compatibility The electromagnetic compatibility of the vehicle
components has been checked and certified
according to the currently valid version of Reg-
ulation ECE-R 10. Diagnostics connection
The diagnostics connection is only intended for the connection of diagnostic equipment at a
qualified specialist workshop. G
WARNING
If you connect equipment to a diagnostics
connection in the vehicle, it can affect the
operation of the vehicle systems. This may
affect the operating safety of the vehicle.
There is a risk of an accident.
Do not connect any equipment to a diagnos-
tics connection in the vehicle. G
WARNING
Objects in the driver's footwell may restrict
the clearance around the pedals or block a
depressed pedal. This jeopardises the oper-
ating and road safety of the vehicle. There is a risk of an accident.
Stow all objects securely in the vehicle so that
they do not get into the driver's footwell.
Always fit the floormats securely and as pre-
scribed in order to ensure that there is always sufficient room for the pedals. Do not use
loose floormats and do not place several floor-mats on top of one another.
! If the engine is switched off and equipment
on the diagnostics connection is used, the
starter battery may discharge.
Connecting equipment to the diagnostics con-
nection can lead to emissions monitoring infor-
mation being reset, for example. This may lead
to the vehicle failing to meet the requirements of
the next emissions test during the main inspec- tion. Introduction
27 Z

Key functions
:
& Locks the vehicle
; F Opens/closes the tailgate
= % Unlocks the vehicle
X To unlock centrally: press the%button.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
R the vehicle locks again
R protection against theft is reactivated
X To lock centrally: press the&button.
The key centrally locks and unlocks the follow-
ing components: R the doors
R the tailgate
R the fuel filler flap
When unlocking, the turn signals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated or deactivated using the
on-board computer (Y page 295).
Only when all the components have been
locked, does the optical or acoustic locking con- firmation sound.
If activated in COMAND Online or Audio 20, the
locator lighting also lights up in the dark (see
separate operating instructions).
X To open the tailgate automatically from
outside the vehicle:
press and hold theF
button until the tailgate opens.
Vehicles with KEYLESS-GO or KEYLESS-GO start
function and EASY-PACK tailgate:
X To close the tailgate automatically from
outside the vehicle: if the key is located in the immediate vicinity of the vehicle, press
the
F button on the key.
When the tailgate closes you can then release the button. KEYLESS-GO
General notes Bear in mind that the engine can be started by
any of the vehicle occupants if there is a KEY-
LESS-GO key in the vehicle (Y
page 160).
Locking and unlocking centrally You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you need to carry the
key with you. You can combine the KEYLESS-GO functions with the functions of a conventional
key. Unlock the vehicle by using KEYLESS-GO,
for instance, and lock it using the &button
on the key.
The driver's door and the door at which the han- dle is used must both be closed. The key must be
outside the vehicle. When locking or unlocking
with KEYLESS-GO, the distance between the key and the corresponding door handle must not be greater than 1 m.
KEYLESS-GO checks whether a valid key is in
the vehicle by periodically establishing a radio
connection between the vehicle and the key.
This happens:
R when starting the engine
R whilst driving
R when the external door handles are touched
R during convenience closing Key
85Opening and closing Z

Problems with the key
Problem
Possible causes/consequences and
M
MSolutions You can no longer lock or
unlock the vehicle using
the key. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 87) and replace if necessary
(Y page 87).
If this does not work: X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element. The key is faulty.
X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element.
X Have the key checked at a qualified specialist workshop. You can no longer lock or
unlock the vehicle using
KEYLESS-GO. KEYLESS-GO was deactivated.
X Reactivate KEYLESS-GO (Y page 85). The key battery is discharged or nearly discharged.
X Check the key battery (Y page 87) and replace if necessary
(Y page 87).
If this does not work: X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element. There is a fault with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of the
key.
X Have the vehicle and key checked at a qualified specialist work-
shop.
If the vehicle can also not be locked/unlocked using the remote con-
trol function:
X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element.
X Have the vehicle and key checked at a qualified specialist work-
shop. Key
89Opening and closing Z

Problem
Possible causes/consequences and
M
MSolutions The engine cannot be
started using the key. the on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary (Y page 395).
or
X Jump-start the vehicle (Y page 397).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The key is in
the vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 87) and replace if necessary
(Y page 87).
If this does not work: X Start your vehicle with the key in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the key in the ignition lock. You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle, they can:
R open doors and endanger other persons or
road users
R climb out and be injured by the traffic
R operate vehicle equipment and, for exam-
ple, trap themselves. Children could also set the vehicle in motion,
for example by:
R releasing the parking brake
R shifting the automatic transmission out of
park position P
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle. Always
keep the key out of reach of children.
United Kingdom only: 90
DoorsOpening and closing

Switching the auxiliary heating/venti-
lation on or off using the remote control
General notes
Your vehicle comes with one remote control.
You may use two additional remote controls for
your vehicle. For more information, please con-
tact a qualified specialist workshop.
Store the remote control for the auxiliary heat-
ing so that the auxiliary heating cannot be
switched on unintentionally. In particular,
ensure that the remote control for the auxiliary
heating is kept out of the reach of children.
The remote control has a range of approximately
300 metres. This range is reduced by:
R sources of radio interference
R solid objects between the remote control and
the vehicle
R the remote control being in an unfavourable
position in relation to the vehicle
R transmitting from an enclosed space
If the remote control battery is low, the battery
symbol on the left of the display is shown as
empty. Replace the remote control battery and
observe the important safety notes when doing so (Y page 152).
Activating and deactivating the auxiliary
heating or auxiliary ventilation Remote control
:
Display
; u Activates the auxiliary heating or aux-
iliary ventilation
Checks the status
= . Sets the departure time
? ^ Deactivates the auxiliary heating or
auxiliary ventilation
A , Sets the departure time X
To activate: press and hold the ubutton.
ON is shown in the remote control display.
X To deactivate: press and hold the ^but-
ton.
OFF is shown in the remote control display.
Checking the status of the auxiliary heat-
ing or auxiliary ventilation
X Briefly press the ubutton.
The following messages may appear in the dis-
play: Display Meaning
The auxiliary heating or
auxiliary ventilation is
switched off.
The auxiliary ventilation is
switched on. The number
in the display shows the
remaining time (in
minutes) for the auxiliary
ventilation.
The auxiliary heating is
switched on. The number
in the display shows the
remaining time (in
minutes) for the auxiliary
heating.
A departure time has been
activated. The departure
time appears in the dis-
play. Operating the climate control system
151Climate control Z