Basic settingssee Settings
BAS PLUS (Brake Assist System
PLUS) .................................................... 74
Bass, setting ...................................... 139
Battery (SmartKey) Checking .......................................... 85
Important safety notes ....................85
Replacing ......................................... 85
Battery (vehicle)
Charging ........................................ 482
Display message ............................ 407
Important safety notes ..................480
Jump starting ................................. 483
Belt
see Seat belts
Bird's-eye view (navigation) ............. 188
Blind see Roller sunblind
Blind Spot Assist
Activating/deactivating .................387
Notes/function .............................. 363
see Active Blind Spot Assist
BlueTEC (DEF) .................................... 527
Bluetooth ®
Activating/deactivating .................151
Authorizing a device (registering) ..152
Conditions (general) ......................151
Conditions (telephone) ..................199
Connecting another mobile phone . 201
Connecting devices .......................151
De-authorizing (de-registering) a
device ............................................ 153
External authorization (general) .....153
External authorization (telephone) . 201
General information .......................151
Introduction ................................... 197
Receiving vCards ........................... 208
Searching for devices ....................152
Settings ......................................... 151
Telephone basic menu ...................202
Telephony ...................................... 199
Telephony notes ............................ 197
Bluetooth ®
interface
Telephony ...................................... 197
Brake Assist System
see BAS (Brake Assist System) Brake fluid
Display message ............................ 398
Notes ............................................. 529
Brake fluid level ................................ 464
Brake lamps Display message ............................ 404
Brakes
ABS .................................................. 73
BAS .................................................. 74
BAS PLUS ........................................ 74
Brake fluid (notes) .........................529
Display message ............................ 391
Driving tips .................................... 331
High-performance brake system ....333
Important safety notes ..................331
Maintenance .................................. 332
Parking brake ................................ 328
Warning lamp ................................. 424
Breakdown
see Flat tire
see Towing away
Brightness, setting (TV, video) ......... 244
Bulbs see Changing bulbs
C
California Important notice for retail
customers and lessees ....................29
Call
Accepting/ending/rejecting .......... 203
see Telephone
Calling up a malfunction
see Display messages
Calling voicemail ............................... 205
Call lists Displaying details ........................... 209
Introduction ................................... 213
Opening and selecting an entry .....213
Saving an entry in the address
book .............................................. 214
Capacities
see Technical data
Car
see Vehicle
6Index
Inserting/loading (Rear Seat
Entertainment System) ..................255
Notes on discs ............................... 234
Removing/ejecting (Rear Seat
Entertainment System) ..................256
Selecting a media type ..................228
Selecting a track ............................ 229
Sound settings (balance, bass,
fader, treble) .................................. 139
DVD audio
Operating (on-board computer) .....381
DVD video
Operating (on-board computer) .....381
E
EASY-ENTRY feature Activating (COMAND) ....................266
Function/notes ............................. 115
EASY-EXIT feature
Activating (COMAND) ....................266
Crash-responsive ........................... 115
Function/notes ............................. 115
EBD (electronic brake force
distribution) Display message ............................ 394
Function/notes ................................ 77
ECO function ...................................... 265
ECO start/stop function Deactivating/activating .................311
General information .......................310
Electrical fuses
see Fuses
Electronic brake force distribution
see EBD (electronic brake force
distribution)
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Electronic Traction System
see ETS/4ETS (Electronic
Traction System)
Emergency release
Driver's door .................................... 90
Trunk ......................................... 94, 95
Vehicle ............................................. 90
Emergency spare wheel
Storage location ............................ 474
Emergency Tensioning Devices
Function ........................................... 65
Safety guidelines ............................. 49
Emissions control
Service and warranty information ....28
Engine
Check Engine warning lamp ........... 429
Display message ............................ 406
ECO start/stop function ................310
Engine number ............................... 524
Irregular running ............................ 313
Jump-starting ................................. 483
Starting problems ..........................313
Starting the engine with the key ....309
Starting with KEYLESS-GO .............309
Switching off .................................. 327
Tow-starting (vehicle) ..................... 487
Engine electronics
Problem (malfunction) ...................313
Engine emergency stop .................... 490
Engine oil Adding ........................................... 462
Additives ........................................ 529
Checking the oil level ..................... 459
Checking the oil level using the
dipstick .......................................... 460
Checking the oil level using the
on-board computer ........................460
Display message ............................ 408
Filling capacity ............................... 529
Notes about oil grades ................... 528
Notes on oil level/consumption ....459
Temperature (on-board computer) . 381
Viscosity ........................................ 529
Entering the frequency ..................... 217
Entry Deleting ......................................... 135
Saving ............................................ 137
ESP ®
(Electronic Stability
Program) Deactivating/activating .................386
Deactivating/activating (notes) .......76
Display message ............................ 391
ETS/4ETS ........................................ 76
Function/notes ................................ 75
Important safety information ...........75
Warning lamp ................................. 426Index11
Manual control ............................... 286
Overview ........................................ 285
Reading lamp ................................. 285
Intermediate stop
Deleting ......................................... 166
Entering ......................................... 165
iPod ®
Alphabetical track selection ..........242
Connecting to the Media
Interface ........................................ 238
Selecting a category/playlist .........241
Supported variants ........................238
J
Jack Storage location ............................ 474
Using ............................................. 476
Jump starting (engine) ...................... 483
K
Key see SmartKey
KEYLESS-GO
Convenience closing feature ............97
Locking ............................................ 83
Start/Stop button .......................... 307
Starting the engine ........................309
Unlocking ......................................... 83
Key positions
KEYLESS-GO .................................. 307
SmartKey ....................................... 307
Kickdown
Driving tips .................................... 317
Manual drive program ....................320
L
Lamps see Warning and indicator lamps
Lane-change assistant
see Blind Spot Assist
Lane detection (automatic)
see Lane Keeping Assist
Lane Keeping Assist
Activating/deactivating .................387
Display message ............................ 413
Function/information ....................365
Lap time (RACETIMER) ...................... 382
LATCH-type (ISOFIX) child seat
anchors ................................................ 68
Letter bar see Character bar
License plate lamp (display
message) ............................................ 404
Light function, active Display message ............................ 405
Lighting
see Lights
Lights
Automatic headlamp mode ............281
Cornering light function .................284
Display message ............................ 403
Driving abroad ............................... 280
Fog lamps ...................................... 282
Hazard warning lamps ...................283
High beam flasher .......................... 283
High-beam headlamps ...................283
Light switch ................................... 280
Low-beam headlamps ....................281
Rear fog lamp ................................ 282
Standing lamps .............................. 280
Switching Adaptive Highbeam
Assist on/off ................................. 388
Switching the daytime running
lamps on/off (on-board
computer) ...................................... 387
Switching the daytime running
lamps on/off (switch) ....................281
Turn signals ................................... 283
see Changing bulbs
see Interior lighting
Light sensor (display message) ....... 405
Loading guidelines ............................ 434
Locator lighting setting (COMAND) . 268
Locking see Central locking
Locking (doors)
Automatic ........................................ 89
Emergency locking ........................... 91
From inside (central locking
button) ............................................. 89
Locking centrally
see Central locking
Locking verification signal (on-
board computer) ............................... 38814Index
ProblemPossible causes/consequences and M SolutionsYou have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.XIf necessary, have the locks changed as well.The engine cannot be
started using the
SmartKey.The on-board voltage is too low.XRemove the SmartKey and reinsert it into the ignition lock.XStart the engine within 30 seconds of inserting the SmartKey
into the ignition lock.XRepeat if necessary.
If the engine does not start after several attempts:
XCheck the starter battery and charge it if necessary
( Y page 480).
or
XJump-start the vehicle ( Y page 483).
or
XConsult a qualified specialist workshop.The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle.A door is open. Therefore, the SmartKey cannot be detected as
easily.XClose the door and try to start the vehicle again.There is interference from a powerful source of radio waves.XStart your vehicle with the SmartKey in the ignition lock.Doors
Important safety notes
GWARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system, and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts.88DoorsOpening/closing
Problems with the engineProblemPossible causes/consequences and M SolutionsThe engine does not
start. The starter motor
can be heard.R There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.XBefore attempting to start the engine again, turn the SmartKey
in the ignition back to position 0 or press the Start/Stop button
repeatedly until all indicator lamps in the instrument cluster go
out.XTry to start the engine again ( Y page 308). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
XConsult a qualified specialist workshop.The engine does not
start. You cannot hear
the starter motor.The on-board voltage is too low because the battery is too weak
or discharged.XJump-start the vehicle ( Y page 483).
If the engine does not start despite attempts to jump-start it:
XConsult a qualified specialist workshop.The starter motor was exposed to a thermal load that was too high.XAllow the starter motor to cool down for approximately two
minutes.XTry to start the engine again.
If the engine still does not start:
XConsult a qualified specialist workshop.Vehicles with a
gasoline engine:
The engine is not
running smoothly and
is misfiring.There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.XOnly depress the accelerator pedal slightly.XHave the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it.The coolant
temperature gauge
shows a value above
248 ‡ (120 †).The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.XStop as soon as possible and allow the engine and the coolant
to cool down.XCheck the coolant level ( Y page 463). Observe the warning
notes as you do so and add coolant if necessary.Driving313Driving and parkingZ
Useful information ............................474
Where will I find...? ...........................474
Flat tire .............................................. 475
Battery ............................................... 480
Jump-starting .................................... 483
Towing and tow-starting ..................485
Fuses .................................................. 487473Breakdown assistance
Do not rub the battery with rags or cloths. The
battery could explode if touched due to
electrostatic charge or due to spark
formation.
! Before working on the battery, e.g.
loosening the battery terminals, switch off
the engine and remove the SmartKey from
the ignition. On vehicles with KEYLESS-GO,
make sure that the ignition is switched off.
Check that all the indicator lamps in the
instrument cluster are off. You may
otherwise destroy electronic components,
such as the alternator.
! Like other batteries, the vehicle battery
may 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. Contact a qualified specialist
workshop for further information.
The battery and the cover of the positive
terminal clamp must be installed securely
during operation.
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.
Mercedes-Benz recommends that you do not
carry out work on batteries yourself, e.g.
removing or charging. Have this work
performed at a qualified specialist workshop.
Charging the battery
GWARNING
Never charge a battery still installed in the
vehicle unless a battery charger unit approved
by Mercedes-Benz is being used. Gases may
escape during charging and cause explosions
that may result in paint damage, corrosion or
personal injury.
A battery charger unit specially adapted for
Mercedes-Benz vehicles and tested and
approved by Mercedes-Benz is available as an
accessory. It permits the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Center for further
information and availability.
Charge the battery in accordance with the
separate instructions for the battery charger.GWARNING
There is a risk of acid burns during the
charging process due to the gases which
escape from the battery. Do not lean over the
battery during the charging process.
GWARNING
Battery acid is caustic. Avoid contact with the
skin, eyes or clothing.
! Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while still installed in the vehicle.
! Only use battery chargers with a
maximum charging voltage of 14.8 V.
! Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment ( Y page 483).
XOpen the hood ( Y page 458).XConnect the battery charger to the positive
terminal and ground point in the same
order as when connecting the donor
battery in the jump-starting procedure
( Y page 483).XRead the battery charger's operating
instructions before charging the battery.482BatteryBreakdown assistance
Jump-startingGWARNING
Failure to follow these directions will cause damage to the electronic components, and can lead
to a battery explosion and severe injury or death.
Never lean over batteries while connecting or jump starting. You might get injured.
Battery fluid contains sulfuric acid. Do not allow this fluid to come in contact with eyes, skin or
clothing. In case it does, immediately flush affected area with water, and seek medical help if
necessary.
A battery will also produce hydrogen gas, which is flammable and explosive. Keep flames or
sparks away from battery, avoid improper connection of jumper cables, smoking, etc.
Attempting to jump start a frozen battery can result in it exploding, causing personal injury.
Read all instructions before proceeding.
GWARNING
Hybrid vehicles: be sure to read the "HYBRID" supplement. Otherwise, you could fail to recognize
dangers.
GWARNING
Non-combusted fuel can collect in the exhaust system and ignite. There is a risk of fire. Avoid
repeated and lengthy starting attempts.
! Avoid repeated and lengthy starting attempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
Do not use a rapid charging device to start the vehicle. If your vehicle's battery is discharged,
the engine can be jump-started from another vehicle or from a second battery using jumper
cables. Observe the following points:
R The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,
jump-start the vehicle using a second battery or a jump-starting device.
R You may only jump-start the vehicle when the engine and catalytic converter are cold.
R Do not start the engine if the battery is frozen. Let the battery thaw first.
R jump-starting may only be performed from batteries with a nominal voltage of 12 V.
R Only use jumper cables which have a sufficient cross-section and insulated terminal clamps.
R If the battery is fully discharged, leave the battery that is being used to jump-start connected
for a few minutes before attempting to start. This charges the empty battery a little.
R Make sure that the two vehicles do not touch.
Make sure that:
R the jumper cables are not damaged.
R bare parts of the terminal clamp do not come into contact with other metal parts while the
jumper cables are connected to the battery.
R the jumper cables cannot come into contact with parts such as the V-belt pulley or the fan.
These parts move when the engine is started and while it is running.
Jump-starting483Breakdown assistanceZ