Locking (doors)Automatic ........................................ 83
Emergency locking ........................... 84
From inside (central locking but-
ton) .................................................. 82
Locking centrally
see Central locking
Locking verification signal (on-
board computer) ............................... 223
Luggage compartment enlargement 271
Luggage net ....................................... 271
Lumbar support Adjusting the 4-way lumbar sup-
port .................................................. 98
M
M+S tyres ........................................... 318
Main-beam headlamps Changing bulbs .............................. 116
Display message ............................ 238
Switching on/off ........................... 109
Maintenance
see ASSYST PLUS
Manual transmission
Engaging reverse gear ...................152
Gear lever ...................................... 151
Pulling away ................................... 146
Shifting to neutral ..........................152
Shift recommendation ...................152
Starting the engine ........................145
Matt finish (cleaning instructions) .. 290
Memory card (audio) ......................... 215
Memory function ............................... 103
Mercedes-Benz Service Centre see Qualified specialist workshop
Message memory (on-board com-
puter) .................................................. 226
Messages see Display messages
Mirror
see Vanity mirror (in sun visor)
Mirrors
see Exterior mirrors
see Rear-view mirror
Mobile phone
Frequencies ................................... 334
Installation ..................................... 334
Menu (on-board computer) ............215
Notes/placing in the bracket ......... 278
Transmission output (maximum) .... 334
Mobile telephone
Pre-installed bracket ......................279
Modifying the programming (key) ..... 77
MOExtended tyres ............................. 298
Motorway mode ................................ 111
MP3 Operating ....................................... 215
see Separate operating instructions
Multifunction display
Function/notes ............................. 210
Permanent display .........................220
Multifunction steering wheel
Operating the on-board computer . 209
Overview .......................................... 33
N
Navigation Menu (on-board computer) ............213
see separate operating instructions
Notes on running in a new vehicle .. 144
O
Occupant safety Children in the vehicle .....................50
Important safety notes ....................40
Odometer ........................................... 211
see Total distance recorder
see Trip meter
Oil
see Engine oil
On-board computer
Assistance menu ........................... 217
Audio menu ................................... 214
Convenience submenu ..................225
Displaying a service message ........287
Display messages ..........................226
DISTRONIC PLUS ........................... 179
Factory setting submenu ...............225
Heating submenu ........................... 223
Important safety notes ..................208
Instrument cluster submenu ..........220
Light submenu ............................... 220
Menu overview .............................. 211
Index13
Message memory .......................... 226
Navigation menu ............................ 213
Operating video DVD .....................215
Operation ....................................... 209
Service menu ................................. 219
Settings menu ............................... 219
Standard display ............................ 211
Telephone menu ............................ 215
Trip menu ...................................... 211
Vehicle submenu ........................... 223
Opening and closing the side trim
panels ................................................. 117
Operating instructions Vehicle equipment ...........................22
Operating safety
Declaration of conformity ................23
Important safety note ......................22
Operating system
see On-board computer
Outside temperature display ........... 209
Overhead control panel ...................... 36
Override feature Rear side windows ...........................63
P
Paint code .......................................... 336
Paintwork (cleaning instructions) ... 289
Panic alarm .......................................... 40
Panorama sliding sunroof Important safety information ...........89
Opening/closing .............................. 90
Opening/closing the roller sun-
blind ................................................. 92
Problem (malfunction) .....................92
Rain closing feature .........................91
Resetting ......................................... 92
Parking ............................................... 162
Important safety notes ..................162
Parking brake ................................ 163
Position of exterior mirror, front-
passenger side ............................... 102
Reversing camera ..........................191
see Active Parking Assist
see PARKTRONIC
Parking aid
Active Parking Assist .....................186
see Exterior mirrors
see PARKTRONIC
Parking assistance
see PARKTRONIC
Parking brake
Display message ............................ 230
Electric parking brake ....................163
Warning lamp ................................. 261
Parking lamps
Display message ............................ 238
Switching on/off ........................... 108
PARKTRONIC
Deactivating/activating .................185
Driving system ............................... 182
Function/notes ............................. 182
Important safety notes ..................182
Problem (fault) ............................... 186
Sensor range ................................. 183
Trailer towing ................................. 185
Warning display ............................. 184
PASSENGER AIRBAG OFF warning
lamp ...................................................... 53
Petrol .................................................. 337
Plastic trim (cleaning instructions) . 293
Power socket Boot ............................................... 278
Power windows
see Side windows
PRE-SAFE ®
(preventive occupant
safety system) Display message ............................ 233
Operation ......................................... 46
Program selector button .................. 155
Protection of the environment General notes .................................. 21
Pulling away
Automatic transmission .................146
Manual transmission ...................... 146
Trailer ............................................ 147
Q
Qualified specialist workshop ........... 24
14Index
R
Radar sensor system Activating/deactivating .................223
Display message ............................ 243
Radio
Selecting a station .........................214
see separate operating instructions
Radio-based vehicle components
Declaration of conformity ................23
Rain closing feature (panorama
sliding sunroof) ................................... 91
Reading lamp ..................................... 113
Rear bench seat Folding the backrest forwards/
back ............................................... 271
Rear compartment
Setting the air vents ......................142
Rear-compartment seat belt sta-
tus indicator ........................................ 49
Rear foglamp Changing bulbs .............................. 118
Display message ............................ 238
Switching on/off ........................... 108
Rear lamps
see Lights
Rear-view mirror
Anti-dazzle mode (automatic) ........102
Dipping (manual) ........................... 101
Rear window heating
Problem (fault) ............................... 134
Switching on/off ........................... 133
Refuelling
Fuel gauge ....................................... 30
Important safety notes ..................159
Refuelling process .........................160
see Fuel
Remote control
Auxiliary heating/ventilation .......... 137
Changing the batteries (auxiliary
heating) ......................................... 138
Replacing the battery (auxiliary
heating remote control) .................... 138
Reserve (fuel tank) see Fuel
Reserve fuel
Display message ............................ 242
Warning lamp ................................. 262Residual heat (climate control) ........ 135
Restraint system see SRS (Supplemental Restraint
System)
Rev counter ........................................ 209
Reverse gear Engaging (manual transmission) ....152
Reversing camera
Cleaning instructions .....................291
Function/notes ............................. 191
Switching on/off ........................... 191
Reversing feature
Panorama sliding sunroof ................90
Roller sunblinds ............................... 91
Side windows ................................... 87
Reversing lamp
Changing bulbs .............................. 118
Reversing lamps
Display message ............................ 239
Roller sunblind
Opening/closing .............................. 92
Panorama sliding sunroof ................91
Roof carrier ........................................ 273
Roof lining and carpets (cleaning
instructions) ...................................... 294
Roof load (maximum) ........................ 343
Route (navigation) see Route guidance (navigation)
Route guidance (navigation) ............ 213
S
Safety Children in the vehicle .....................50
Child restraint systems ....................50
Safety system
see Driving safety system
Seat
Folding the backrest (rear com-
partment) forwards/back ..............271
Seat belt
Adjusting the driver's and front-
passenger seat belt .........................48
Adjusting the height ......................... 48
Belt force limiter .............................. 50
Belt tensioner .................................. 50
Cleaning ......................................... 294
Display message ............................ 234
Index15
Rif you have adopted a sporty driving style
with high cornering speeds or high rates of
acceleration
R if you are predominantly driving slower
than 80 km/h or faster than 180 km/h
R if you are currently using COMAND Online
or making a telephone call with COMAND
Online
R if the time has been set incorrectly
R in active driving situations, such as when
you change lanes or change your speed
Warning and display messages in the
multifunction displayXActivate ATTENTION ASSIST using the on-
board computer ( Y page 218).
The À symbol appears in the assistance
display ( Y page 217).
If ATTENTION ASSIST is active, it will not
warn you until at least 20 minutes after
your journey has begun. You then hear an
intermittent warning tone twice and the
Attention Assist: Take a break!
message appears in the multifunction dis-
play.XIf necessary, take a break.XPress the a button to confirm the mes-
sage.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take a break, you will be warned again
after 15 minutes at the earliest. This will only
happen if ATTENTION ASSIST still detects
typical indicators of fatigue or increasing lap-
ses in concentration.
ATTENTION ASSIST is reset and starts
assessing your tiredness again when you con-
tinue your journey if:
R you switch off the engine
R you take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break
Speed Limit Assist
General notes
Speed Limit Assist shows you detected speed
limits in the multifunction display. Data from
the navigation system is also used for this
purpose. If a traffic sign indicating a speed
limit or the end of a speed limit is detected,
it is shown in the multifunction display. If
Speed Limit Assist does not detect any traffic
signs, the speed limit from the digital road
map is taken and shown in the display.
Speed Limit Assist detects the traffic signs
with a camera attached behind the top of the
windscreen.
:Speed Limit Assist camera
Important safety notes
Speed Limit Assist is only an aid and does not
always detect traffic signs specifying the
maximum permissible speed. Traffic signs
always have priority over the Speed Limit
Assist display.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray
R there is glare, e.g. from the sun or from
oncoming traffic
R the windscreen is dirty, misted up or cov-
ered, for instance by a sticker, in the vicinity
of the camera
R the traffic signs are covered, for instance
by dirt, snow or trees
196Driving systemsDriving and parking
?Menu barAPermanent display: outside temperature
or speed ( Y page 220)BTimeXTo show the menu bar ?: press the
= or ; button on the steering wheel.
Menu bar ? disappears after a few seconds.
Text field = shows the selected menu or
submenu as well as display messages.
i You can set the time using the audio sys-
tem or COMAND Online, see the separate
operating instructions.
The following messages may appear in the
multifunction display:
ZGearshift recommendation
( Y page 152)Xj YActive Parking Assist
( Y page 186)¯Cruise control ( Y page 168)ÈSPEEDTRONIC ( Y page 171)_Adaptive Highbeam Assist
( Y page 111)¤ECO start/stop function
( Y page 148)ëHOLD function ( Y page 181)120 km/h!Maximum permissible speed
exceeded (only for certain coun-
tries)
Menus and submenus
Menu overview
Operating the on-board computer
( Y page 209).
Depending on the equipment fitted in the
vehicle, you can call up the following menus:
R Trip menu ( Y page 211)
R Navi menu (navigation instructions)
( Y page 213)
R Audio menu ( Y page 214)
R Tel (telephone) menu ( Y page 215)
R
Assist. (Assistance) menu ( Y page 217)
R Service menu (Y page 219)
R Settings menu (Y page 219)
The Audio , Navi and Tel menus differ slightly
in vehicles with Audio 20 and in vehicles with
COMAND Online. The examples given in this
Owner's Manual apply to vehicles equipped
with COMAND Online.
Trip menu
Standard display
XPress and hold the % button on the
steering wheel until the Trip menu with
trip meter : and total distance
recorder ; is shown.
Trip computer "From start" or "From
reset"
Example: "From start" trip computer
:Distance;Time=Average speed?Average fuel consumptionXPress the = or ; button on the steer-
ing wheel to select the Trip menu.XPress the 9 or : button to select
After start or After reset .Menus and submenus211On-board computer and displaysZ
XPress the = or ; button on the steer-
ing wheel to select the Trip menu.XPress the 9 or : button to select the
function that you wish to reset.XPress the a button.XPress the : button to select Yes and
press a to confirm.
i
If you reset the values in the ECO display,
the values in the "From start" trip computer
are also reset. If you reset the values in the
"From start" trip computer, the values in
the ECO display are also reset.
Navigation menu
Displaying navigation instructions
XSwitch on Audio 20 with Becker ®
MAP
PILOT or COMAND Online (see the sepa-
rate operating instructions).XPress the = or ; button on the steer-
ing wheel to select the Navi menu.
In the Navi menu, the multifunction display
shows navigation instructions. For more
information, see the separate operating
instructions.
Route guidance not active
:Direction of travel;Current streetActivating route guidance
No change of direction announced
:Distance to the destination;Distance to the next change of direction=Current street?Symbol indicating "follow the road's
course"
Change of direction announced without a
lane recommendation
:Road to which the change of direction
leads;Distance to change of direction and visual
distance display=Change-of-direction icon
When a change of direction is announced, you
will see symbol = for the change of direction
and distance graphic ;. This shortens
towards the top of the display as you
approach the point of the announced change
of direction.
Menus and submenus213On-board computer and displaysZ
Instrument cluster
Selecting the unit of measurement for dis-
tance
You can determine whether the multifunction
display shows some messages in miles or kil-
ometres.
XPress the = or ; button on the steer-
ing wheel to select the Settings menu.XPress the : or 9 button to select the
Inst. cluster submenu.XPress a to confirm.XPress the : or 9 button to select the
Display unit Speed-/odometer: func-
tion.
You will see the selected setting km or
miles .XPress the a button to save the setting.
The selected unit of measurement for dis-
tance applies to:
R the digital speedometer in the Trip menu
R the total distance recorder and the trip
meter
R the trip computer
R the current consumption and the range
R the navigation instructions in the Navi
menu
R cruise control
R SPEEDTRONIC
R DISTRONIC PLUS
R ASSYST PLUS service interval display
Switching the additional speedometer
on/off
The Dig. speedo [mph]: or Dig. speedo
[km/h]: (vehicles for the United Kingdom)
function allows you to choose whether the
status area in the multifunction display
always shows the speed in mph or in km/h
(United Kingdom) instead of the outside tem-
perature.
XPress the = or ; button on the steer-
ing wheel to select the Settings menu.XPress the : or 9 button to select the
Inst. cluster submenu.XPress a to confirm.XPress : or 9 to select the Dig.
speedo [mph]: or Dig. speedo
[km/h]: (United Kingdom) function.
You will see the selected setting: on or
off .XPress the a button to save the setting.
Selecting the permanent display function
You can determine whether the multifunction
display permanently shows your speed or the
outside temperature.
XPress the = or ; button on the steer-
ing wheel to select the Settings menu.XPress the : or 9 button to select the
Inst. cluster submenu.XPress a to confirm.XPress the : or 9 button to select the
Permanent display: function.
You will see the selected setting outside
temperature or Dig. speedo [mph] /
Dig. speedo [km/h] (vehicles for the Uni-
ted Kingdom).XPress the a button to save the setting.
i
The speed is displayed in mph or in
km/h (United Kingdom).
Lights
Switching the daytime driving lights on/
off
The Daytime driving lights function can
only be switched on with the engine turned
off.
XPress the = or ; button on the steer-
ing wheel to select the Settings menu.XPress the : or 9 button to select the
Light submenu.XPress a to confirm.220Menus and submenusOn-board computer and displays
Safety systemsProblemPossible causes/consequences and M SolutionsJ
The red brake system
warning lamp is lit while
the engine is running. A
warning tone also
sounds.There is insufficient brake fluid in the brake fluid reservoir.GWARNING
The braking efficiency may be impaired.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.XSecure the vehicle against rolling away ( Y page 162).XDo not top up the brake fluid. Topping up will not rectify the
fault.XConsult a qualified specialist workshop.XObserve the additional display messages in the multifunction
display.!
The yellow ABS warning
lamp is lit while the
engine is running.ABS (Anti-lock Brake System) has been deactivated due to a fault.
Therefore, BAS (Brake Assist), COLLISION PREVENTION ASSIST,
COLLISION PREVENTION ASSIST PLUS, ESP ®
(Electronic Stability
Program), PRE-SAFE ®
, the HOLD function, hill start assist, the
adaptive brake lights and ESP ®
trailer stabilisation, for example,
are also deactivated.
ATTENTION ASSIST is deactivated.GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
XObserve the additional display messages in the multifunction
display.XDrive on carefully.XVisit a qualified specialist workshop.
If the ABS control unit is faulty, there is also a possibility that other
systems, such as the navigation system or the automatic trans-
mission, will be unavailable.
256Warning and indicator lamps in the instrument clusterOn-board computer and displays