
1, 2, 3 ...
12 V socket see Sockets
A
ABS (Anti-lock Braking System) Display message ............................ 214
Function/notes ................................ 61
Important safety notes ....................61
Warning lamp ................................. 242
Activating/deactivating cooling
with air dehumidification ................. 134
Active Blind Spot Assist Activating/deactivating (on-
board computer) ............................ 207
Function/information ....................189
Active Driving Assistance package . 189
Active Lane Keeping Assist Activating/deactivating (on-
board computer) ............................ 207
Display message ............................ 229
Function/information ....................192
Active Light System
Display message ............................ 224
Active service system PLUS
see ASSYST PLUS service interval
display
ADAPTIVE BRAKE ................................. 65
Adaptive Highbeam Assist Display message ............................ 225
Function/notes ............................. 120
Switching on/off (on-board
computer) ...................................... 209
Additives (engine oil) ........................ 344
Air bags Display message ............................ 221
Front air bag (driver, front
passenger) ....................................... 39
Important safety notes ....................38
Knee bag .......................................... 40
PASSENGER AIRBAG OFF
indicator lamp .................................. 43
Pelvis air bag ................................... 42
Safety guidelines ............................. 37
Side impact air bag ..........................41
Window curtain air bag ....................43
AIRCAP
Cleaning instructions .....................283
Extending/retracting .......................94
General notes .................................. 94
Installing/removing the wind
screen .............................................. 95
Air-conditioning system
see Climate control
Air pressure
see Tire pressure
AIRSCARF
Setting the vents ........................... 141
Switching on/off ........................... 108
Air vents
Glove box ....................................... 141
Important safety notes ..................140
Rear ............................................... 141
Setting ........................................... 140
Setting the AIRSCARF vents ..........141
Setting the center air vents ...........140
Setting the side air vents ...............140
Switching AIRSCARF on/off ..........108
Alarm system
see ATA (Anti-Theft Alarm system)
Alertness Assistant
see ATTENTION ASSIST
Anti-lock Braking System
see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Anti-theft system
ATA (Anti-Theft Alarm system) .........67
Ashtray ............................................... 259
Assistance menu (on-board
computer) .......................................... 206
ASSYST PLUS see ASSYST PLUS service interval
display
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................67
Function ........................................... 67
Switching off the alarm ....................67
ATTENTION ASSIST
Activating/deactivating .................207
Display message ............................ 228
Function/notes ............................. 185
Audio menu (on-board computer) .... 2034Index

Display message ............................ 237
Emergency locking ........................... 79
Emergency unlocking .......................79
Important safety notes ....................77
Opening (from inside) ......................78
Draft stop ............................................. 93
Drinking and driving ......................... 160
Drinks holder see Cup holder
Drive program
Automatic ...................................... 152
Display ........................................... 150
Manual ........................................... 154
Driver's door
see Doors
Driver's seat
see Seats
Driving abroad
Mercedes-Benz Service .................279
Symmetrical low beam ..................116
Driving on flooded roads .................. 163
Driving safety systems ABS (Anti-lock Braking System) .......61
ADAPTIVE BRAKE ............................. 65
BAS (Brake Assist System) ..............62
BAS PLUS (Brake Assist System
PLUS) ............................................... 62
Electronic brake force distribution ...64
ESP ®
(Electronic Stability
Program) .......................................... 63
ETS (Electronic Traction System) .....63
Important safety information ...........61
Overview .......................................... 60
PRE-SAFE ®
Brake ............................. 65
Driving systems
Active Blind Spot Assist .................189
Active Driving Assistance
package ......................................... 189
Active Lane Keeping Assist ............192
ATTENTION ASSIST ........................185
Blind Spot Assist ............................ 186
Cruise control ................................ 164
Display message ............................ 228
DISTRONIC PLUS ........................... 166
Dynamic handling package with
sports mode .................................. 175
HOLD function ............................... 176Lane Keeping Assist ......................188
Lane Tracking package ..................186
Parking Guidance ........................... 181
PARKTRONIC ................................. 178
Rear view camera .......................... 184
Driving tips
Automatic transmission .................151
Brakes ........................................... 161
Break-in period .............................. 144
DISTRONIC PLUS ........................... 174
Downhill gradient ........................... 161
Drinking and driving .......................160
Driving abroad ............................... 116
Driving in winter ............................. 163
Driving on flooded roads ................163
Driving on wet roads ......................163
Exhaust check ............................... 161
Fuel ................................................ 160
General .......................................... 160
Hydroplaning ................................. 163
Icy road surfaces ........................... 163
Limited braking efficiency on
salted roads ................................... 162
Pedals ............................................ 160
Snow chains .................................. 311
Symmetrical low beam ..................116
Wet road surface ........................... 162
DVD audio (on-board computer) ...... 204
DVD-Video (on-board computer) ...... 204
Dynamic handling package with
sports mode ....................................... 175
E
EASY-ENTRY feature Activating/deactivating .................211
Function/notes ............................. 109
EASY-EXIT feature
Crash-responsive ........................... 110
Function/notes ............................. 109
Switching on/off ........................... 211
EBD (electronic brake force
distribution) Display message ............................ 215
Function/notes ................................ 64
Electrical fuses
see Fuses
8Index

Interior lightingAutomatic control ..........................122
Delayed switch-off (on-board
computer) ...................................... 210
Emergency lighting ........................122
Manual control ............................... 122
Overview ........................................ 122
Reading lamp ................................. 122
see Interior lighting
J
Jack Storage location ............................ 290
Using ............................................. 292
Jump starting (engine) ...................... 299
K
Key Opening/closing soft top .................88
see SmartKey
KEYLESS-GO
Convenience closing feature ............85
Display message ............................ 239
Locking ............................................ 71
Start/Stop button .......................... 145
Starting the engine ........................146
Unlocking ......................................... 71
Key positions
KEYLESS-GO .................................. 145
SmartKey ....................................... 145
Kickdown
Driving tips .................................... 151
Manual drive program ....................154
Knee bag .............................................. 40
L
Lamps see Warning and indicator lamps
Lane-change assistant
see Blind Spot Assist
Lane Keeping Assist
Activating/deactivating .................207
Display message ............................ 229
Function/information ....................188
Lane Tracking package ..................... 186
LATCH-type (ISOFIX) child seat
anchors ................................................ 57
License plate lamp (display
message) ............................................ 223
Lighting see Lights
Lights
Activating/deactivating the
interior lighting delayed switch-off . 210
Automatic headlamp mode ............118
Cornering light function .................120
Display message ............................ 222
Driving abroad ............................... 116
Fog lamps ...................................... 118
Hazard warning lamps ...................119
High beam flasher .......................... 119
High-beam headlamps ...................119
Light switch ................................... 116
Low-beam headlamps ....................117
Parking lamps ................................ 116
Rear fog lamp ................................ 118
Switching Adaptive Highbeam
Assist on/off ................................. 209
Switching the daytime running
lamps on/off (on-board
computer) ...................................... 209
Switching the daytime running
lamps on/off (switch) ....................117
Switching the exterior lighting
delayed switch-off on/off (on-
board computer) ............................ 209
Switching the surround lighting
on/off (on-board computer) ..........209
Turn signals ................................... 119
see Changing bulbs
see Interior lighting
Light sensor (display message) ....... 225
LIM indicator lamp Cruise control ................................ 164
DISTRONIC PLUS ........................... 168
Loading guidelines ............................ 252
Locking see Central locking
Locking (doors)
Automatic ........................................ 78
Emergency locking ........................... 79
From inside (central locking
button) ............................................. 78Index11

rear view mirror and glance over your
shoulder before changing lanes.
The exterior mirrors are automatically heated
if the rear window defroster is switched on
and the outside temperature is low.XMake sure that the SmartKey is in position
1 or 2 in the ignition lock.XPress button : for the left-hand exterior
mirror or button ; for the right-hand
exterior mirror.
The indicator lamp in the corresponding
button lights up in red.
The indicator lamp goes out again after
some time. You can adjust the selected
mirror using adjustment button = as long
as the indicator lamp is lit.XPress adjustment button = up, down, to
the right or to the left until the exterior
mirror is set to a position that provides you
with a good overview of traffic conditions.
Folding the exterior mirrors in or out
electrically
This function is only available in vehicles for
Canada.
XMake sure that the SmartKey is in position
1 or 2 in the ignition lock.XBriefly press button :.
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
always folded out fully while the vehicle is
in motion, as they may otherwise vibrate.
i If you are driving faster than
9 mph (15 km/h), you can no longer fold in
the exterior mirrors.
Setting the exterior mirrors
This function is only available in vehicles for
Canada.
If the battery has been disconnected or
completely discharged, the exterior mirrors
must be reset. The exterior mirrors will
otherwise not fold in when you select the
"Fold in mirrors when locking" function in the
on-board computer ( Y page 212).
XMake sure that the SmartKey is in
position 1 in the ignition lock.XBriefly press button :.
Folding the exterior mirrors in or out
automatically
This function is only available in vehicles for
Canada.
If the "Fold in mirrors when locking" function
is activated in the on-board computer
( Y page 212):
Mirrors111Seats, steering wheel and mirrorsZ

DISTRONIC PLUS
Important safety notes
DISTRONIC PLUS regulates the speed and
automatically helps you maintain the
distance to the vehicle detected in front. It
brakes automatically in order to avoid
exceeding the set speed.
On long and steep downhill gradients,
especially if the vehicle is laden, you must
select shift range 1, 2 or 3 in good time. By
doing so, you will make use of the braking
effect of the engine, which relieves the load
on the brake system and prevents the brakes
from overheating and wearing too quickly.
If a slower-moving vehicle is detected in front,
DISTRONIC PLUS causes your vehicle to
brake and maintain a preset distance to the
vehicle in front.
GWARNING
The DISTRONIC PLUS requires familiarity with
its operational characteristics. We strongly
recommend that you review the following
information carefully before operating the
system.
GWARNING
The DISTRONIC PLUS is a convenience
system. Its speed adjustment reduction
capability is intended to make cruise control
more effective and usable when traffic speeds
vary. It is not however, intended to, nor does
it, replace the need for extreme care.
The responsibility for the vehicle's speed,
distance to the preceding vehicle and, most
importantly, brake operation to ensure a safe
stopping distance, always remains with the
driver.
The DISTRONIC PLUS cannot take street and
traffic conditions into account.
Complex driving situations are not always
fully recognized by the DISTRONIC PLUS. This
could result in wrong or missing distance
warnings.
If you want DISTRONIC PLUS to assist you,
the radar sensor system must be activated
( Y page 210) and operational.
If there is no vehicle driving in front of you,
DISTRONIC PLUS functions like cruise
control at a speed range between 20 mph
(Canada: 30 km/h) and 120 mph
(Canada: 200 km/h). If a vehicle is driving in
front of you, it functions at a speed range
between 0 mph (0 km/h) and 120 mph
(Canada: 200 km/h).
Do not use DISTRONIC PLUS while driving on
roads with steep gradients.
As DISTRONIC PLUS transmits radar waves,
it can resemble the radar detectors of the
responsible authorities. You can refer to the
applicable section in the Operator's Manual if
there are any questions concerning this.
i USA only:
This device has been approved by the FCC
as a “Vehicular Radar System”. The radar
sensor is intended for use in an automotive
radar system only. Removal, tampering, or
altering of the device will void any
warranties, and is not permitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.GWARNING
The DISTRONIC PLUS adaptive cruise control
is not a substitute for active driving
involvement. It does not react to pedestrians
or on stationary objects, nor does it recognize
or predict the curvature and lane layout or the
movement of preceding vehicles. The
DISTRONIC PLUS can only apply a maximum
of 40% of the vehicle's braking power.
The DISTRONIC PLUS may not detect narrow
vehicles possibly driving in front of you, such
as motorcycles and vehicles driving in an
offset formation.
It is the driver's responsibility at all times to
be attentive to the road, weather and traffic
166Driving systemsDriving and parking

conditions. Additionally, the driver must
provide the steering, braking and other driving
inputs necessary to remain in control of the
vehicle.
High-frequency sources such as toll stations,
speed measuring systems etc. can cause the
DISTRONIC PLUS system to temporarily
cease functioning.GWARNING
The DISTRONIC PLUS cannot take road and
traffic conditions into account. Only use the
DISTRONIC PLUS if the road, weather and
traffic conditions make it advisable to travel
at a constant speed.
GWARNING
Use of the DISTRONIC PLUS can be
dangerous on slippery roads. Rapid changes
in tire traction can result in wheel spin and
loss of control.
The DISTRONIC PLUS does not function in
adverse sight and distance conditions. Do not
use the DISTRONIC PLUS during conditions of
fog, heavy rain, snow or sleet.
GWARNING
The DISTRONIC PLUS cannot take weather
conditions into account. Switch off the
DISTRONIC PLUS or do not switch it on if:
R roads are slippery or covered with snow or
ice. The wheels could lose traction while
braking or accelerating, and the vehicle
could skid.
R the DISTRONIC PLUS system sensor covers
are dirty or visibility is diminished due to
snow, rain or fog, for example. The distance
control system functionality could be
impaired.
Always pay attention to surrounding traffic
conditions even while the DISTRONIC PLUS is
switched on. Otherwise, you may not be able
to recognize dangerous situations until it is
too late. This could cause an accident in which
you and/or others could be injured.
GWARNING
The "Resume" function should only be
operated if the driver is fully aware of the
previously set speed and wishes to resume
this particular preset speed.
GWARNING
Your undivided attention to street and traffic
conditions is necessary at all times whether
DISTRONIC PLUS is active or not.
The use of DISTRONIC PLUS can be
dangerous on winding roads or in heavy traffic
because conditions do not allow safe driving
at a constant speed.
DISTRONIC PLUS does not react to stationary
objects on the road (for example, a vehicle
stopped in traffic or an abandoned vehicle).
DISTRONIC PLUS likewise does not react to
oncoming vehicles.
Deactivate DISTRONIC PLUS:
R when changing to the right lane, if the
vehicles in the left lane are driving slower
R when driving into a filter lane or an
expressway exit
R in complex driving situations, for example
in construction sites on an expressway
In these situations DISTRONIC PLUS will
maintain the set speed if it is not deactivated.
DISTRONIC PLUS is intended only for
maintaining a set speed and a set distance
from the objects moving in front of the
vehicle.
GWARNING
An intermittent warning sounds and the
distance warning lamp · in the instrument
cluster is illuminated if the DISTRONIC PLUS
system calculates that the distance to the
vehicle ahead and your vehicle's current
speed indicate that the DISTRONIC PLUS will
not be capable of slowing the vehicle
sufficiently to maintain the preset following
distance, which creates a danger of a
collision.
Driving systems167Driving and parkingZ

Changing lanes
If you wish to change to the passing lane (in
left-hand-drive vehicles, the passing lane is
the left-hand lane), DISTRONIC PLUS
supports you if:
R you are driving faster than 40 mph
(60 km/h).
R DISTRONIC PLUS is maintaining the
distance to a vehicle in front.
R you switch on the appropriate turn signals.
R DISTRONIC PLUS does not detect a danger
of collision.
If these conditions are met, your vehicle is
accelerated. Acceleration will be interrupted
if changing lanes takes too long or if the
distance between your vehicle and the
vehicle in front becomes too small.GWARNING
DISTRONIC PLUS and Active Blind Spot Assist
are only aids designed to assist driving.
They do not relieve you of the responsibility
of paying attention. The driver remains fully
responsible for the vehicle's distance from
other vehicles, the vehicle's speed and for
braking in good time. Always pay attention to
traffic conditions and your surroundings.
Otherwise, you may fail to recognize dangers
in time, cause an accident and injure yourself
and others.
Stopping
GWARNING
Never get out of the vehicle when DISTRONIC
PLUS is activated.
DISTRONIC PLUS must also never be
operated, activated or deactivated by a
passenger or from outside the vehicle.
DISTRONIC PLUS does not replace the
parking brake and must not be used for
parking.
The DISTRONIC PLUS braking effect is
canceled and the vehicle can start moving if:
R DISTRONIC PLUS is deactivated using the
cruise control lever.
R you accelerate.
R there is a malfunction in the system or an
interruption in the power supply, e.g.
battery failure.
R the electrical system in the engine
compartment, the battery or the fuses are
tampered with.
R the battery is disconnected.
If you wish to leave the vehicle or park it,
deactivate DISTRONIC PLUS and secure the
vehicle against rolling away.
If DISTRONIC PLUS detects that the vehicle
in front is stopping, it brakes your vehicle until
it is stationary.
Once your vehicle is stationary, it remains
stationary and you do not need to depress the
brake.
i Depending on the specified minimum
distance, your vehicle will come to a
standstill at a sufficient distance behind the
vehicle in front. The specified minimum
distance is set using the control on the
cruise control lever.
You will see a warning message in the
multifunction display if DISTRONIC PLUS is
activated and:
R the driver's door is open and the driver's
seat belt is unfastened.
R the engine is switched off.
R the hood is opened.
Shift to 'P'XMove the selector lever to P to prevent the
vehicle from rolling away.
DISTRONIC PLUS is deactivated. The
warning message in the multifunction
display disappears.170Driving systemsDriving and parking

Ryou pull the cruise control lever towards
you in order to pull away and the front-
passenger door is open.
R the vehicle has skidded.
If DISTRONIC PLUS is deactivated, you will
hear a warning tone. The DISTRONIC PLUS
Off message is shown in the multifunction
display for approximately five seconds.
If the vehicle has been stopped by DISTRONIC
PLUS and a malfunction occurs in the system,
the Brake Immediately message appears in
the multifunction display. Depress the brake
pedal immediately so that the vehicle does
not roll away. DISTRONIC PLUS is then
deactivated, and the message disappears.GWARNING
The DISTRONIC PLUS switches off and
releases the brakes when the vehicle
decelerates below the minimum speed of
20 mph (30 km/h) by operation of the system
unless the DISTRONIC PLUS detects a vehicle
directly ahead of you. At that time the driver
must apply the brakes in order to reduce
vehicle speed further or bring it to a stop.
Tips for driving with DISTRONIC PLUS
Important safety notes
The following contains descriptions of certain
road and traffic conditions in which you must
be particularly attentive. In such situations,
brake if necessary. DISTRONIC PLUS is then
deactivated.
GWARNING
The DISTRONIC PLUS works to maintain the
speed selected by the driver unless a moving
obstacle proceeding directly ahead of it in the
same travel direction is detected (e.g.
following another vehicle ahead of you at your
set distance).
This means that:
R Your vehicle can pass another vehicle after
you have changed lanes.
R While in a sharp turn or if the preceding
vehicle is in a sharp turn, the DISTRONIC
PLUS could lose sight of the preceding
vehicle. Your vehicle could then accelerate
to the previously selected speed.
The DISTRONIC PLUS regulates only the
distance between your vehicle and those
directly ahead of it. It may not register
stationary objects in the road, e.g.:
R a stopped vehicle in a traffic jam
R a disabled vehicle
R an oncoming vehicle
The driver must always be alert, observe all
traffic and intercede as required by means of
steering or braking the vehicle.GWARNING
The DISTRONIC PLUS should not be used in
snowy or icy road conditions.
Cornering, going into and coming out of a
bend
The ability of DISTRONIC PLUS to detect
vehicles when cornering is limited. Your
vehicle may brake unexpectedly or late.
174Driving systemsDriving and parking