
Grade (gasoline) ............................ 434
Important safety notes .................. 434
Low outside temperatures ............ .4 36
Problem (malfunction) ................... 166
Quality (diesel) ............................... 435
Refueling ........................................ 162
Tank content/reserve fuel ............. 434
Fuel filler flap
Opening ......................................... 164
Fuel filter (display message) ............ 298
Fuel level
Calling up the range (on-board
computer) ...................................... 267
Fuel tank
Capacity ........................................ 434
Problem (malfunction) ................... 166
Fuses
Allocation chart ............................. 384
Before changing ............................. 384
Dashboard fuse box ....................... 384
Fuse box in the engine compart-
ment .............................................. 385
Fuse box under rear bench seat .... 385
Important safety notes .................. 384
G
Garage door opener
Clearing the memory ..................... 355
General notes ................................ 352
Important safety notes .................. 352
Opening/closing the garage doo r. .3 54
Programming (button in the rear-
view mirror) ................................... 353
Synchronizing the rolling code ....... 353
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 277
Genuine parts ...................................... 25
Glove box .......................................... .3 30
GTW (Gross Trailer Weight) (defini-
tion) .................................................... 407
H
Handbrake
see Parking brake
Hazard warning lamps ..................... .1 16 Head restraints
Adjusting ....................................... 102
Adjusting (electrically) ................... 103
Adjusting (manually) ..................... .1 03
Adjusting (rear) .............................. 103
Installing/removing (rear) .............. 104
Luxury ............................................ 103
Headlamps
Fogging up ..................................... 118
see Automatic headlamp mode
Heating
see Climate control
High-beam headlamps
Adaptive Highbeam Assist ............. 117
Changing bulbs .............................. 120
Display message ............................ 293
Switching on/off ........................... 116
High-voltage battery
Battery care ................................... 171
Charging ........................................ 378
Charging (charging station) ............ 175
Charging (mains socket) ................ 172
Charging (wallbox) ......................... 175
Charging cable warming ................ 171
Cruise range .................................. 171
Energy consumption ..................... .1 71
General notes .................................. 43
Method of operation ..................... .1 70
Outside temperatures .................... 171
Overvoltage protection .................. 172
Problems with the charging proc-
ess ................................................. 176
Terms of use .................................. 171
Vehicle fire ....................................... 43
Hill start assist .................................. 149
HOLD function
Deactivating ................................... 205
Display message ............................ 304
Function/notes ............................ .2 04
Hood
Closing .......................................... .3 57
Display message ............................ 313
Important safety notes .................. 356
Opening ......................................... 356
Horn ...................................................... 33
Hybrid drive system
Automatic switch off ........................ 42
Danger of electric shock .................. 42 Index 11 

Average weight of the vehicle
occupants (definition) .................... 406
Bar (definition) ............................... 406
Changing a wheel .......................... 408
Characteristics .............................. 406
Checking ........................................ 388
Curb weight (definition) ................. 407
Definition of terms ......................... 406
Direction of rotation ...................... 409
Display message ............................ 309
Distribution of the vehicle occu-
pants (definition) ............................ 408
DOT (Department of Transporta-
tion) (definition) ............................. 406
DOT, Tire Identification Number
(TIN) ............................................... 405
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 406
General notes ................................ 413
GTW (Gross Trailer Weight) (defi-
nition) ............................................ 407
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 407
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 407
Important safety notes .................. 387
Increased vehicle weight due to
optional equipment (definition) ...... 406
Information on driving .................... 387
Kilopascal (kPa) (definition) ........... 407
Labeling (overview) ........................ 403
Load bearing index (definition) ...... 408
Load index ..................................... 405
Load index (definition) ................... 407
M+S tires ....................................... 389
Maximum load on a tire (defini-
tion) ............................................... 407
Maximum loaded vehicle weight
(definition) ..................................... 407
Maximum permissible tire pres-
sure (definition) ............................. 407
Maximum tire load ......................... 405
Maximum tire load (definition) ....... 407
MOExtended tires .......................... 389
Optional equipment weight (defi-
nition) ............................................ 408
PSI (pounds per sq uare inch) (def-
i
nition) ........................................... 407 Replacing ....................................... 408
Service life ..................................... 388
Sidewall (definition) ....................... 408
Speed rating (definition) ................ 407
Storing ........................................... 409
Structure and characteristics
(definition) ..................................... 406
Temperature .................................. 402
TIN (Tire Identification Number)
(definition) ..................................... 408
Tire bead (definition) ...................... 407
Tire pressure (definition) ................ 407
Tire pressures (recommended) ...... 406
Tire size (data) ............................... 413
Tire size designation, load-bearing
capacity, speed rating .................... 403
Tire tread ....................................... 388
Tire tread (definition) ..................... 407
Total load limit (definition) ............. 408
Traction ......................................... 402
Traction (definition) ....................... 408
Tread wear ..................................... 402
TWR (permissible trailer drawbar
noseweight) (definition) ................. 408
Uniform Tire Quality Grading
Standards ...................................... 401
Uniform Tire Quality Grading
Standards (definition) .................... 406
Wear indicator (definition) ............. 408
Wheel and tire combination ........... 414
Wheel rim (definition) .................... 406
see Flat tire
Top Tether ............................................ 62
Tow-starting
Emergency engine starting ............ 383
Important safety notes .................. 381
Towing a trailer
Axle load, permissible .................... 445
Cleaning the trailer tow hitch ......... 366
Coupling up a trailer ...................... 259
Decoupling a trailer ....................... 261
Driving tips .................................... 257
ESP ®
(Electronic Stability Pro-
gram) ............................................... 73
Important safety notes .................. 256
Installing the ball coupling ............. 258
Lights display message .................. 292
Mo u nting dimensions .................... 444 Index 21 

Power supply ................................. 262
Pulling away with a trailer .............. 149
Removing the ball coupling ............ 262
Trailer loads ................................... 445
Towing away
Important safety guidelines ........... 381
Installing the towing eye ............... .3 82
Notes for 4MATIC vehicles ............ 383
Removing the towing eye .............. .3 82
Transporting the vehicle ................ 383
With both axles on the ground ....... 382
Towing eye ......................................... 369
Traffic Sign Assist
Display message ............................ 304
Function/notes ............................ .2 26
Important safety notes .................. 226
Instrument cluster display ............. 226
Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights ............................................... 261
Trailer towing
Active Blind Spot Assist ................. 233
Active Lane Keeping Assist ............ 235
Blind Spot Assist ............................ 229
PARKTRONIC ................................. 210
Permissible trailer loads and
drawbar noseweights ..................... 261
Transfer case ..................................... 162
Transmission
see Automatic transmission
Transmission position display ......... 154
Transmission position display
(DIRECT SELECT lever) ..................... .1 54
Transporting the vehicle .................. 383
Traveling uphill
Brow of hill ..................................... 190
Driving downhill ............................ .1 90
Maximum gradient-climbing capa-
bility ............................................... 190
Trim pieces (cleaning instruc-
tions) ................................................. .3 67
Trip computer (on-board com-
puter) ................................................. .2 66
Trip odometer
Calling up ....................................... 266
Resetting (on-board computer) ...... 267 Trunk
see Tailgate
Turn signals
Changing bul bs (front) ................... 121
Di spl ay message ............................ 292
Switching on/off ........................... 116
Two-way radio
Frequencies ................................... 431
Installation ..................................... 431
Transmission output (maximum) .... 431
TWR (Tongue Weight Rating) (defi-
nition) ................................................. 408
Type identification plate
see Vehicle identification plate
U Unlocking
Emergency unlocking ....................... 86
From inside the vehicle (central
unlocking button) ............................ .8 5
Upshift indicator (on-board com-
puter, Mercedes-AMG vehicles) ...... .2 77
V
Vanity mirror (in the sun visor) ....... .3 41
Vehicle
Correct use ...................................... 29
Data acquisition ............................... 30
Display message ............................ 311
Equipment ....................................... 26
Individual settings .......................... 273
Limited Warranty ............................ .3 0
Loading .......................................... 397
Locking (in an emergency) ............... 86
Locking (SmartKey) .......................... 78
Lowering ........................................ 412
Maintenance .................................... 27
Parking for a long period ................ 181
Pulling away ................................... 148
Raising ........................................... 410
Reporting problems ......................... 29
Securing from rolling away ............ 409
Towing away .................................. 381
Transporting .................................. 383
Unlocking (in an emergency) ........... 86
Unlocking (SmartKey) ...................... 7822
Index 

Protection of the environment
General notes
H Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected
by these factors: R
operating conditions of your vehicle R
your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions: R
avoid short trips as these increase fuel con-
sumption. R
always make sure that the tire pressures
are correct. R
do not carry any unnecessary weight. R
remove roof racks once you no longer need
them. R
a regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals. R
always have service work carried out at a
qualified specialist workshop.
Personal driving style: R
do not depress the accelerator pedal when
starting the engine. R
do not warm up the engine when the vehicle
is stationary. R
drive carefully and maintain a safe distance
from the vehicle in front. R
avoid frequent, sudden acceleration and
braking. R
change gear in good time and use each gear
only up to  

poses an increased risk of injury or even fatal
injury.
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.
G WARNING
Persons under 5 ft (1.50 m) in height cannot
fasten the seat belt correctly without an addi-
tional suitable restraint system. If the seat
belt is incorrectly fastened, it cannot protect
as intended. Furthermore, an incorrectly fas-
tened seat belt can cause additional injury, for
example, in an accident, during braking or an
abrupt change of direction. This poses an
increased risk of injury or even fatal injury.
For this reason, always secure persons under
5 ft (1.50 m) in height in suitable restraint
systems.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle: R
always secure the child in a child restraint
system suitable for this Mercedes-Benz vehi-
cle. The child restraint system must be appro-
priate to the age, weight and size of the child R
always observe the instructions and safety
notes on "Children in the vehicle"
( Y
page 60) in addition to the child restraint
system manufacturer's installation and oper-
ating instructions R
be sure to observe the instructions and safety
notes on the "Occupant classification system
(OCS)" ( Y
page 52)
G WARNING
The seat belts may not perform their intended
protective function if: R
they are damaged, modified, extremely
dirty, bleach or dyed R
the seat belt buckle is damaged or
extremely dirty R
the Emergency Tensioning Devices, belt
anchorages or inertia reels have been modi-
fied Seat belts may sustain non-visible damage in
an accident, e.g. due to glass splinters. Modi-
fied or damaged seat belts may tear or fail,
e.g. in an accident. Modified Emergency Ten-
sioning Devices could accidentally trigger or
fail to deploy when necessary. This poses an
increased risk of injury or even fatal injury.
Never modify the seat belts, Emergency Ten-
sioning Devices, belt anchorages or inertia
reels. Make sure that the seat belts are
undamaged, not worn out and clean. Follow-
ing an accident, have the seat belts checked
immediately at a qualified specialist work-
shop.
Only use seat belts that have been approved for
your vehicle by Mercedes-Benz.
Proper use of the seat belts Pay attention to the safety notes about the seat
belt ( Y
page 46).
All vehicle occupants must fasten the seat belt
correctly before setting off. Make sure that all
occupants are wearing their seat belts correctly
for the entire journey.
When fastening the seat belt, make sure that: R
The seat belt tongue is inserted into the belt
buckle that belongs to the seat. R
The seat belt is tightened across your body.
Avoid wearing bulky clothing, e.g. a winter
coat. R
The seat belt is not twisted.
Only then can the forces produced in the
event of an accident be evenly distributed
across the belt. R
The shoulder section of the belt must always
be routed across the center of the shoulder.
The shoulder section of the belt should not
come into contact with your neck and must
not be routed under the arm. Where possible,
adjust the seat belt to the appropriate height. R
The lap belt must be taut and as low as pos-
sible over your lap.
The lap belt must always pass across your hip
joints and never across your stomach or
abdomen. Pregnant women must take partic-
ular care. If necessary, the lap belt can be
pushed down across the hip joints and pulled
tight using the shoulder section.Occupant safety 47
Safety Z 

If a child is traveling in your vehicle, also
observe the following notes: R
Always secure children under twelve years of
age and less than 5 ft (1.50 m) tall in suitable
child restraint systems. R
Child restraint systems should be installed on
the rear seats. R
Only secure a child in a rearward-facing child
restraint system on the front-passenger seat
when the front-passenger front air bag is
deactivated. If the PASSENGER AIR BAG OFF
indicator lamp is permanently lit, the front-
passenger front air bag is deactivated
( Y
page 45).R
Always observe the instructions and safety
notes on the "Occupant Classification System
(OCS)" ( Y
page 52) and on "Children in the
vehicle" ( Y
page 60) in addition to the child
restraint system manufacturer's installation
and operating instructions.
Objects in the vehicle interior may prevent
an air bag from functioning correctly. Before
starting your journey and to avoid risks resulting
from the speed of the air bag as it deploys, make
sure that: R
there are no people, animals or objects
between the vehicle occupants and an air
bag. R
there are no objects between the seat, door
and B-pillar. R
no hard objects, e.g. coat hangers, hang on
th e grab handles or coat hooks. R
no accessories, such as cup holders, are
attached to the vehicle within the deployment
area of an air bag, e.g. to doors, side windows,
rear side trim or side walls. R
no heavy, sharp-edged or fragile objects are in
the pockets of your clothing. Store such
objects in a suitable place.
G WARNING
If you modify the air bag cover or affix objects
such as stickers to it, the air bag can no longer
function correctly. There is an increased risk
of injury.
Never modify an air bag cover or affix objects
to it.
G WARNING
Sensors to control the air bags are located in
the doors. Modifications or work not per- formed correctly to the doors or door panel-
ing, as well as damaged doors, can lead to the
function of the sensors being impaired. The air
bags might therefore not function properly
anymore. Consequently, the air bags cannot
protect vehicle occupants as they are
designed to do. There is an increased risk of
injury.
Never modify the doors or parts of the doors.
Always have work on the doors or door pan-
eling carried out at a qualified specialist work-
shop.
Front air bags
Driver's air bag  C deploys in front of the steer-
ing wheel. Front-passenger front air bag  D
deploys in front of and above the glove box.
When deployed, the front air bags offer addi-
tional head and thorax protection for the occu-
pants in the front seats.
The PASSENGER AIR BAG OFF and PASSENGER
AIR BAG ON indicator lamps inform you about
the status of the front-passenger air bag
( Y
page 45).
The front-passenger front air bag will only
deploy if: R
the system, based on the OCS weight sensor
readings, detects that the front-passenger
seat is occupied ( Y
page 52). The
PASSENGER AIR BAG ON indicator lamp is lit
( Y
page 52) R
the restraint system control unit predicts a
high accident severity50
Occupant safety
Safety 

Occupant Classification System
(OCS)
Introduction The Occupant Classification System (OCS) cat-
egorizes the person in the front-passenger seat.
Depending on that result, the front-passenger
front air bag is either enabled or deactivated.
The system does not deactivate: R
the side impact air bag R
the window curtain air bag R
the Emergency Tensioning Devices
In the following situation, the side impact air bag
and the Emergency Tensioning Device are deac-
tivated: R
OCS has not categorized the person on the
front-passenger seat as an adult or a person
of corresponding stature and R
the seat belt tongue of the seat belt is not
inserted into the front-passenger seat belt
buckle
Prerequisites To be classified correctly, the front passenger
must sit: R
with the seat belt fastened correctly R
in an almost upright position with their back
against the seat backrest R
with their feet resting on the floor, if possible
If the front passenger does not observe these
conditions, OCS may produce a false classifica-
tion, e.g. because the front passenger: R
transfers their weight by supporting them-
selves on a vehicle armrest R
sits in such a way that their weight is raised
from the seat cushion
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be
sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g.
cushions. The entire base of the child restraint
system must always rest on the seat cushion of
the front-passenger seat. The backrest of the
forward-facing child restraint system must lie as
flat as possible against the backrest of the front-
passenger seat.
The child restraint system must not touch the
roof or be subjected to a load by the head restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's installation instructions.
Occupant Classification System opera-
tion (OCS)
 C
PASSENGER AIR BAG ON indicator lamp  D
PASSENGER AIR BAG OFF indicator lamp
The indicator lamps indicate whether the front-
passenger front air bag is activated or deactiva-
ted. X
Press the start/stop button once or twice, or
turn the SmartKey to position 1 or 2 in the
ignition lock.
The system carries out a self-diagnosis test.
The PASSENGER AIR BAG OFF and PASSENGER
AIR BAG ON indicator lamps must light up simul-
taneously for about six seconds.
The indicator lamps then display the status of
the front-passenger front air bag: R
PASSENGER AIRBAG ON lights up: the front-
passenger front airbag is enabled. If, in the
case of an accident, all deployment criteria
are met, the front-passenger front air bag is
deployed. R
PASSENGER AIRBAG OFF lights up: the front-
passenger front airbag is disabled. It will then
not be deployed in the event of an accident.
If the status of the front-passenger front air bag
changes whilst the vehicle is in motion, an air
bag display message may appear in the instru-
ment cluster ( Y
page 290). Always observe the
PASSENGER AIR BAG ON and PASSENGER AIR
BAG OFF indicator lamps when the front-
passenger seat is occupied. Make sure that the
status of the front-passenger front air bag is
correct before and during a journey.52
Occupant safety
Safety