
Assistance displa
y(on-board
computer) .......................................... 240
Assistance menu (on-board
computer) .......................................... 240
ASSYST PLUS Displaying a service message ........317
Hiding a service message ..............316
Notes ............................................. 316
Resetting the service interval
displa y........................................... 317
Service message ............................ 316
Special service requirements ......... 317
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................78
Function .......................................... .78
Switching off the alarm ....................78
ATTENTIO NASSIST
Activating/deactivating .................242
Display message ............................ 263
Function/notes ............................. 220
Audio system
see separate operating instructions
Authorized Centers
see Qualified specialist workshop
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshops
see Qualified specialist workshop
AUTO lights
Display message ............................ 260
see Lights
Automatic engine start (ECO start/
stop function) .................................... 169
Automatic engine switch-off (ECO
start/stop function) ..........................169
Automatic headlamp mode ..............135
Automatic transmission Automatic drive program ...............176
Changing gea r............................... 175
DIRECT SELECT leve r..................... 172
Display message ............................ 271
Drive program displa y.................... 172
Driving tips .................................... 175
Emergency running mode ..............179
Engaging drive position .................. 174
Engaging neutra l............................ 173
Engaging revers egear ................... 173
Engaging the par kposition ............ 172 Kickdow
n....................................... 175
Manual drive program ....................176
Manual drive program (vehicles
with Sports package AMG) ............177
Overview ........................................ 172
Problem (malfunction) ...................179
Progra mselector button ................175
Pulling away ................................... 167
Starting the engine ........................167
Steering wheel paddle shifters ......176
Transmission position display
(DIRECT SELECT lever) ................... 172
Transmission positions ..................174
Automatic transmission
emergency mode ............................... 179 B
Bag hook ............................................ 292
BAS (Brake Assist System) .................69
BAS PLUS (Brake Assist System
PLUS) with Cross-Traffic Assist
Function/notes ................................ 70
BAS PLUS Q (Brake Assist System
PLUS) with Cross-Traffic Assist
Important safety notes ....................70
Battery (SmartKey)
Checking .......................................... 85
Important safety notes ....................85
Replacing ......................................... 85
Battery (vehicle)
Charging ........................................ 332
Display message ............................ 262
Important safety notes ..................330
Jump starting ................................. 334
Belt force limiter
Activation ......................................... 61
Function .......................................... .61
Blind Spo tAssist
Activating/deactivating .................242
Display message ............................ 265
Notes/function .............................. 221
see Active Blind Spot Assist
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 252
Notes ............................................. 387 Index
5

Problem Possible causes/consequences and
0001 Solutions
You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. The engine cannot be
started using the
SmartKey. 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 332).
or
X Jump-start the vehicle (Y page 334).
or
X Consult a qualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle. The vehicle is locked.
X
Unlock the vehicle and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock. Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the vehicle. Always keep the SmartKey out of
reach of children.
G
WARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
You should preferably place luggage or loads
in the cargo compartment. Observe the
loading guidelines (Y page 288). Unlocking and opening doors from
the inside
! The side windows will not open/close if
the battery is discharged or if the side
windows have iced up. It will then not be
possible to close the door. Do not attempt
to force the door closed. You could 88
DoorsOpening and closing

Battery acid is caustic. Avoid
contact with skin, eyes or clothing.
Wea
rsuitable protective clothing,
especially gloves, apro nand
faceguard.
Rinse any acid spills immediately
with clear water. Contact a
physician if necessary. Wear eye protection.
Keep children away.
Observe this Operator's Manual.
For safety reasons, Mercedes-Benz
recommends tha tyou only use batteries
which have been tested and approved for
your vehicle by Mercedes-Benz. These
batteries provide increased impact
protection to prevent vehicle occupants from
suffering acid burns should the battery be
damaged in the event of an accident.
In order for the battery to achieve the
maximum possible service life, it must always
be sufficiently charged.
The vehicle battery, like other batteries, can
discharge over time if you do not use the
vehicle. In this case, have the battery
disconnected at a qualified specialist
workshop. You can also charge the battery
with a charger recommended by Mercedes-
Benz.C ontact a qualified specialist workshop
for further information.
Have the battery condition of charge checked
more frequently if you use the vehicle mainly
for short trips or if you leave it standing idle
for a lengthy period. Consult a qualified
specialist workshop if you wish to leave your
vehicle parked for a long period of time.
i Remove the SmartKey if you park the
vehicle and do not require any electrical consumers. The vehicle will then use very
little energy, thus conserving battery
power.
i If the power supply has been interrupted,
e.g. if you reconnect the battery, you will
have to:
R set the clock. Information on setting the
clock can be found in the separate
operating instructions.
On vehicles with COMAND and a
navigation system, the clock is set
automatically.
R reset the function for folding the exterior
mirrors in/out automatically, by folding
the mirrors out once (Y page 128). Charging the battery
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery. G
WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
batteries. Wash battery acid immediately with
water and seek medical attention. G
WARNING
Ad ischarged battery can freeze at
temperatures below freezing point .When
jump-starting the vehicle or charging the
battery, gases can escape from the battery.
There is a risk of an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting. 332
Battery (vehicle)Breakdown assistance