
Battery (key)
Checking .......................................... 85
Important safety notes ....................85
Replacing ......................................... 85
Battery (vehicle)
Charging ........................................ 369
Display message ............................ 280
Important safety notes ..................367
Jump starting ................................. 370
Belt
see Seat belt
Belt force limiters (activation) ...........43
Belt tensioner Activation ......................................... 43
Function .......................................... .54
Blind Spo tAssist
Activating/deactivating .................257
Display message ............................ 285
Notes/function .............................. 225
Trailer towing ................................. 227
see Active Blind Spot Assist
BlueTEC (AdBlue ®
) ............................. 440
Bluetooth ®
SAP V3 telephone mod-
ule see Separate operating instructions
Bonnet
Active bonnet (pedestrian protec-
tion) ............................................... 344
Closing .......................................... .346
Display message ............................ 295
Opening ......................................... 345
Boot
Emergency release ..........................94
Boot lid
Display message ............................ 294
Opening dimensions ......................444
Boot load (maximum) ........................ 444
Bottle holders .................................... 329
Box (boot) .......................................... .322
Brake Assist System see BAS (Brake Assist System)
Brake fluid
Display message ............................ 272
Notes ............................................. 442
Brake lamps
Adaptive .......................................... .72
Display message ............................ 276Brakes
ABS .................................................. 70
BAS .................................................. 71
BAS PLUS ........................................ 71
Brake fluid (notes) .........................442
Display message ............................ 269
Driving tips .................................... 186
High-performance brake system ....188
Important safety notes ..................186
Parking brake ................................ 184
Warning lamp ................................. 300
Breakdown
see Flat tyre
Bulbs
see Changing bulbs C
Calling up a fault see Display messages
Car
see Vehicle
Care
Automatic car wash .......................351
Carpets .......................................... 357
Display ........................................... 355
Exterior lighting ............................. 354
Gea rors electo rlever .................... 356
High-pressure cleaner .................... 352
Interior ........................................... 355
Matt paintwork .............................. 353
Nigh tView Assist Plus ...................355
Notes ............................................. 350
Paint .............................................. 352
Plastic trim .................................... 356
Reversing camera ..........................354
Roof lining ...................................... 357
Seat bel t........................................ 357
Seat cover ..................................... 356
Sensors ......................................... 354
Steering wheel ............................... 356
Tai lpipes ....................................... 355
Trim pieces .................................... 356
Washing by hand ........................... 352
Wheels ........................................... 353
Windows ........................................ 353
Wiper blades .................................. 353
Wooden trim .................................. 3566
Index 

Interior lighting
................................. 133
Automatic control system ..............134
Delayed switch-off (on-board
computer) ...................................... 261
Emergency lighting ........................134
Manual control ............................... 134
Overview ........................................ 133
Reading lamp ................................. 133
Setting the ambient lighting
brightness (on-board computer) ....260
Interior motion sensor ........................79
ISOFIX child seat securing system ....58 J
Jack Storage location ............................ 361
Using ............................................. 390
Jump start (engine)
see Jump starting (engine)
Jump starting (engine) ......................370 K
Key Changing the battery .......................85
Checking the battery .......................85
Convenience closing feature ............97
Convenience opening feature ..........96
Display message ............................ 297
Door central locking/unlocking .......83
Emergency key element ................... 84
Important safety notes ....................82
Loss ................................................. 87
Modifying the programming .............84
Positions (ignition lock) .................161
Problem (malfunction) .....................87
Starting the engine ........................163
KEYLESS-GO
Convenience closing ........................97
Display message ............................ 297
Locking ............................................ 83
Start/Stop button .......................... 161
Starting the engine ........................163
Unlocking ......................................... 83
Keyp ositions
Key ................................................ 161
KEYLESS GO .................................. 161Kickdown
Driving tips .................................... 174
Manual drive program ....................177
Kneebag ............................................... 46 L
Lamps see Warning and indicator lamps
Lane detection (automatic)
see Lane Keeping Assist
Lane Keeping Assist
Activating/deactivating .................257
Display message ............................ 284
Function/informatio n.................... 227
Lane package ..................................... 225
Lap time (RACETIMER) ......................265
Lashing eyelets ................................. 318
Licence plate lamp (display mes-
sage) ................................................... 277
Lighting see Lights
Lights
Activating/deactivating the Intel-
ligent Ligh tSystem ........................ 259
Activating/deactivating the inte-
rior lighting delayed switch-off .......261
Active light function .......................130
Automatic headlamp mode ............125
Cornering light function .................130
Dipped-bea mheadlamps ............... 126
Driving abroad ............................... 124
Foglamps ....................................... 126
Foglamps (extended range) ...........131
Hazard warning lamps ...................129
Headlamp flasher ........................... 129
Headlamp range ............................ 128
Ligh tswitc h................................... 125
Main-beam headlamps ................... 129
Motorway mode ............................. 131
Parking lamps ................................ 128
Rea rfoglamp ................................. 127
Setting the ambient lighting
brightness (on-board computer) ....260
Side lamps ..................................... 127
Switching Adaptive Highbeam
Assist on/off ................................. 260 Index
13 

Notes for AMG vehicles
.................437
Refuelling proces s......................... 180
see Fuel
Releasing the parking loc kman-
ually (automatic transmission) ........179
Remote control Auxiliary heating/ventilation .......... 152
Changing the batteries (auxiliary
heating) ......................................... 154
Garage door opene r....................... 335
Programming (garage door
opener) .......................................... 336
Replacing the battery (auxiliary
heating remote control) .................... 154
Reserve (fuel tank) see Fuel
Reserve fuel
Display message ............................ 280
Warning lamp ................................. 305
Residual heat (climate control) ........150
Restraint system see SRS (Supplemental Restraint
System)
Rev counter ........................................ 247
Reverse gear Engaging (automatic transmis-
sion) ............................................... 171
Engaging (manual transmission) ....170
Reversing camera
Cleaning instructions .....................354
Function/notes ............................. 218
Switching on/off ........................... 219
Reversing lamp (display message) ..277
Roller sunblind Panorama sliding sunroo f.............. 101
Rea rwindow .................................. 330
Roof carrier ........................................ 327
Roof lining and carpets (cleaning
instructions) ...................................... 357
Roof load (maximum) ........................444 S
Safety Childre ninthe vehicle ..................... 55
Child restraint systems ....................55
Safety net
Attaching ....................................... 321
Important safety information .........321
Safety system
see Driving safety system
Seat
Folding the backres t(rear com-
partment) forwards/back ..............317
Seat belt
Adjusting the driver's and front-
passenger sea tbelt ......................... 52
Adjusting the height ......................... 52
Belt force limiter .............................. 54
Belt tensione r.................................. 54
Centre rear-compartment sea t........ 53
Cleaning ......................................... 357
Display message ............................ 273
Fastening ......................................... 52
Important safety guidelines .............51
Rea rseat belt status indicator .........54
Releasing ......................................... 53
Switching belt adjustment on/off
(on-board computer) ......................263
Warning lamp ................................. 299
Warning lamp (function) ................... 53
Seats
Adjusting (electrically). ..................108
Adjusting (manually and electri-
cally) .............................................. 108
Adjusting lumba rsuppor t.............. 113
Adjusting the 4-way lumba rsup-
por t................................................ 113
Adjusting the head restraint ..........109
Cleaning the cover .........................356
Correct driver's sea tposition ........106
Important safety notes ..................107
Overview ........................................ 107
Seat heating problem ....................116
Seat ventilation problem ................116
Storing settings (memory func-
tion) ............................................... 121 Index
17 

fore be carried out at
aqualified specialist
workshop. G
WARNING
If work on electronic equipment and its soft-
ware is carried out incorrectly, this equipment
could stop working .The electronic systems
are networked via interfaces. Tampering with
these electronic systems could cause mal-
functions in systems which have not been
modified. Malfunctions such as these can
seriously jeopardise the vehicle's operating
safety and therefore your own safety.
You should therefore have all work and mod-
ifications to electronic components carried
out at a qualified specialist workshop. Declarations of conformity
Wireless vehicle components The following information applies to all com-
ponents of the vehicle and the COMAND sys-
tem which receive and/or transmit radio
waves:
The components of this vehicle which receive
and/or transmit radio waves are compliant
with the basic requirements and other rele-
vant provisions of Directive 1999/5/EC. You
can obtain further information from any
Mercedes-Benz Service Centre.
Electromagnetic compatibility The electromagnetic compatibility of the vehi-
cle components has been checked and certi-
fied according to the currently valid version
of Directive 72/245/EEC or the equivalent
ECE Regulation ECE-R 10. Diagnostics connection
G
WARNING
If you connect equipment to a diagnostics
connection, it can affect the operation of the
vehicle systems. This could compromise the operating safety of your vehicle while driving.
There is a risk of an accident.
Do not connect any equipment to a diagnos-
tics connection.
G
WARNING
Loose equipment or cables hanging from a
device which are connected to a diagnostic
connection could impede pedal clearance.
The equipment or cables could get caught
between the pedals when driving and braking
suddenly. This could impair the function of the
pedals. There is a risk of accident.
Do not attach any equipment or cables in the
driver's footwell.
! If the engine is switched off and equip-
ment on the diagnostics connection is
used, the starter battery may discharge.
The diagnostics connection is only intended
for the connection of diagnostic equipment at
a qualified specialist workshop.
Connecting equipment to the diagnostics
connection can lead to emissions monitoring
information being reset, for example. This
may lead to the vehicle failing to meet the
requirements of the next emissions test dur-
ing the main inspection. Qualified specialist workshop
Aq ualified specialist workshop has the nec-
essary special skills, tools and qualifications
to correctly carry out any necessary work on
your vehicle. This particularly applies to work
relevan tto safety.
Observe the notes in the Service Booklet.
Always have the following work carried out at
a qualified specialist workshop:
R work relevant to safety
R service and maintenance work
R repair work
R modifications, installations and conver-
sions
R work on electronic components Introduction
25 Z 

Changing the settings of the locking
system
You can change the settings of the locking
system. This means that only the driver's door
and the fuel fille rflap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel on your own.
X To change the setting: press and hold
down the %and& buttons on the
key simultaneously for approximately six
seconds until the battery chec klamp
flashes twice ( Ypage 85).
i If the setting of the locking system is
changed within the signal range of the vehi-
cle, pressing the &or% button:
R locks or
R unlocks the vehicle
The key now functions as follows:
X To unlock the driver's door: press the
% button once.
X To unlock centrally: press the%but-
ton twice.
X To lock centrally: press the&button.
The KEYLESS-GO function is changed as fol-
lows:
X To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
X To unlock centrally: touch the inner sur-
face of the door handle on the front-
passenger door or the rear door.
X To lock centrally: touch the outer sensor
surface on one of the door handles.
X To restore the factory settings: press
and hold down the %and& buttons
simultaneously for approximately six sec-
onds until the battery check lamp flashes
twice (Y page 85). Emergency key element
General notes If the vehicle can no longer be locked or
unlocked with the key, use the emergency
key element.
If you use the emergenc
ykey element to
unlock and open the driver's door or the boot
lid/tailgate, the anti-thef talarm system will
be triggered (Y page 78).
There are several ways to tur noff the alarm:
X To turn the alarm off with the key: press
the % or& button on the key.
or
X Insert the key into the ignition lock.
or
X To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The key must be outside the vehicle.
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically.
X To unlock the fuel filler flap: insert the
key into the ignition lock.
Removing the emergency key element :
Release catch
; Emergency key element 84
KeyOpening and closing 

X
Push release catch :in the direction of
the arrow and at the same time, remove
emergency key element ;from the key. Battery of the key
Important safety notes G
WARNING
Batteries are toxic and contain caustic sub-
stances. For this reason, keep batteries out of
the reach of children.
If a battery has been swallowed, visit a doctor
immediately. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an
environmentally responsible
recycling system.
Dispose of batteries in an
environmentally responsible
manner
.Take discharged
batteries to a qualified spe-
cialis tworkshop or to a col-
lection point for used batter-
ies.
Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop. Checking the battery X
Press the &or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
X Change the battery (Y page 85).
i If the key battery is checked within the
signal reception range of the vehicle, press-
ing the &or% button:
R locks or
R unlocks the vehicle
i You can get a battery in any qualified spe-
cialist workshop.
Replacing the battery You require a CR 2025 3 V cell battery.
X
Take the emergency key element out of the
key (Y page 84). :
Battery compartment cover
; Emergency key element Key
85Opening and closing Z 

X
Press emergency key element ;into the
opening in the key in the direction of the
arrow until battery compartment cover :
opens. When doing so, do not hold battery
compartment cover :shut.
X Remove battery compartment cover :.=
Battery
X Repeatedly tap the key against your palm
until battery =falls out.
X Inser tthe new battery with the positive ter-
minal facing upwards. Use a lint-free cloth
to do so.
X Make sure that the surface of the battery is
free from lint, grease and all other forms of
contamination.
X Insert the front tabs of battery compart-
ment cover :into the housing and then
press to close it.
X Insert emergency key element ;into the
key (Y page 84).
X Check the function of all key buttons on the
vehicle. 86
KeyOpening and closing 

Problems with the key
Problem Possible causes/consequences and
M Solutions
You cannot lock or
unlock the vehicle
using the key. The key battery is discharged or nearly discharged.
X
Try again to lock/unlock the vehicle using the remote control
function of the key. Point the tip of the key at the driver's door
handle from close range and press the %or& button.
If this does not work:
X Check the key battery (Y page 85) and replace it if necessary
(Y page 85).
X Lock (Y page 90) or unlock (Y page 90) the vehicle using
the emergency key element. The key is faulty.
X
Lock (Y page 90) or unlock (Y page 90) 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 is in standby mode because the vehicle has not been
unlocked for an extended period.
X
Pull the door handle and then turn the key to position 2in the
ignition lock. There is interference from a powerful source of radio waves.
X Lock/unlock the vehicle using the remote control function of
the key. Point the tip of the key at the driver's door handle from
close range and press the %/& button. There is a fault with KEYLESS-GO.
X
Lock/unlock the vehicle using the remote control function of
the key. Point the tip of the key at the driver's door handle from
close range and press the %/& button.
X Have KEYLESS-GO checked at a qualified specialist workshop.
If this does not work:
X Check the key battery (Y page 85) and replace it if necessary
(Y page 85).
X Lock (Y page 90) or unlock (Y page 90) the vehicle using
the emergency key element. 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. Key
87Opening and closing Z