1, 2, 3 ...
4ETS (Electronic Traction System) see ETS/4ETS (Electronic Trac-
tion System)
12 V socket
see Sockets
360° camera
Cleaning .........................................2 93
Display in the multimedia system .. 187
Function/notes ............................ .185 A
ABS (Anti-lock Braking System) Display message ............................ 223
Function/notes ................................ 62
Important safety notes .................... 62
Warning lamp ................................. 249
Accident
Automatic measures after an acci-
dent ................................................. 47
Activating media mode
General notes ................................ 263
Activating/deactivating air-recir-
culation mode ................................... .123
Activating/deactivating cooling
with air dehumidification ................. 119
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 215
Display message ............................ 235
Function/notes ............................ .196
Towing a trailer .............................. 198
Active Driving Assistance package .. 196
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 215
Display message ............................ 235
Function/notes ............................ .199
Towing a trailer .............................. 201
Active light function ......................... 109
Active Parking Assist
Detecting parking spaces .............. 177
Display message ............................ 236
Exiting a parking space .................. 179
Function/notes ............................ .176
Important safety notes .................. 176 Parking .......................................... 178
Towing a trailer .............................. 180
ADAPTIVE BRAKE ................................. 69
Adaptive Brake Assist
Function/notes ................................ 66
Adaptive brake lights .......................... 66
Adaptive Highbeam Assist Plus
Display message ............................ 230
Function/notes ............................ .109
Switching on/off ........................... 110
AdBlue ®
Display message ............................ 233
Filling capacity ............................... 332
Important safety notes .................. 332
Service indicator ............................ 289
AdBlue ®
service indicator ................ 289
Additional speedometer ................... 216
Additives (engine oil) ........................ 333
Address book
See also Digital Owner's Manual ... 256
Adjusting the volume
COMAND Online ............................ 257
Adjusting volume
Audio 20 ........................................ 257
Air conditioning
General notes ................................ 115
Air filter (white display message) .... 233
Air pressure
see Tyre pressure
Air vents
Glove compartment ....................... 129
Important safety notes .................. 129
Setting .......................................... .129
Setting the side air vents .............. .129
Air-conditioning system
see Climate control
Airbag
Introduction ..................................... 41
PASSENGER AIR BAG OFF indica-
tor lamp .......................................... .37
Airbags
Front airbag (driver, front
passenger) ...................................... .42
Important safety guidelines .............41
Kneebag ........................................... 42
Pelvis airbag .................................... 43
Sidebag ............................................ 43 Index
3
You can also switch off the hazard warning
lamps using the hazard warning button
(Y page 108). ESP
®
(Electronic Stability Program)
General notes i
Observe the "Important safety notes" sec-
tion (Y page 61).
ESP ®
monitors driving stability and traction, i.e.
power transmission between the tyres and the
road surface.
If ESP ®
detects that the vehicle is deviating from
the direction desired by the driver, one or more
wheels are braked to stabilise the vehicle. The
engine output is also modified to keep the vehi- cle on the desired course within physical limits.
ESP ®
assists the driver when pulling away on
wet or slippery roads. ESP ®
can also stabilise
the vehicle during braking.
ETS/4ETS (Electronic Traction System) ETS traction control is part of ESP
®
. On vehicles
with 4MATIC, 4ETS is a component of ESP ®
.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is transfer-
red to the wheel or wheels with traction.
Traction control remains active if you deactivate ESP ®
.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 61). G
WARNING
If ESP ®
is malfunctioning, ESP ®
is unable to
stabilise the vehicle. In addition, other driving
safety systems are switched off. This increa-
ses the risk of skidding and an accident.
Drive on carefully. Have ESP ®
checked at a
qualified specialist workshop.
! Vehicles with 4MATIC: function or perform-
ance tests may only be carried out on a 2-axle dynamometer. Before operating the vehicle on such a dynamometer, please consult a
qualified specialist workshop. You could oth-
erwise damage the drive train or the brake
system.
Vehicles without 4MATIC: when towing your
vehicle with the rear axle raised, observe the
notes on ESP ®
(Y page 309).
If the å ESP®
OFF warning lamp lights up
continuously, then ESP ®
is deactivated.
If the ÷ ESP®
warning lamp and the å
ESP ®
OFF warning lamp are lit continuously,
ESP ®
is not available due to a malfunction.
Observe the information on warning lamps
(Y page 249) and display messages which may
be shown in the instrument cluster
(Y page 223).
i Only use wheels with the recommended tyre
sizes. Only then will ESP ®
function properly.
Characteristics of ESP ® General notes
If the ÷ ESP warning lamp goes out before
beginning the journey, ESP ®
is automatically
active.
If ESP ®
intervenes, the ÷ESP®
warning lamp
flashes in the instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any circum-
stances.
X When pulling away, only depress the acceler-
ator pedal as far as is necessary.
X Adapt your driving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically if the vehicle stops
moving. When pulling away again, the engine
starts automatically. ESP ®
remains in its previ-
ously selected status. Example:if ESP®
was
deactivated before the engine was switched off,
ESP ®
remains deactivated when the engine is
switched on again. Driving safety systems
67Safety Z
Deactivating/activating ESP
®Important safety notes
You can select between the following statuses
of ESP ®
:
R ESP ®
is activated
R ESP ®
is deactivated. G
WARNING
If you deactivate ESP ®
, ESP ®
no longer sta-
bilises the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP ®
in the situations descri-
bed in the following.
It may be best to deactivate ESP ®
in the follow-
ing situations:
R when using snow chains
R in deep snow
R on sand or gravel
i Activate ESP ®
as soon as the situations
described above no longer apply. ESP ®
will
otherwise not be able to stabilise the vehicle
if the vehicle starts to skid or a wheel starts to
spin.
Deactivating/activating ESP ®
You can deactivate or activate ESP ®
via the on-
board computer (Y page 214).
ESP ®
deactivated:
The å ESP®
OFF warning lamp in the instru-
ment cluster lights up.
ESP ®
activated:
The å ESP®
OFF warning lamp in the instru-
ment cluster goes out.
Characteristics when ESP ®
is deactivated
If ESP ®
is deactivated and one or more wheels
start to spin, the ÷ESP®
warning lamp in the
instrument cluster flashes. In such situations,
ESP ®
will not stabilise the vehicle.
If you deactivate ESP ®
:
R ESP ®
no longer improves driving stability
R Engine torque is no longer limited and the
drive wheels are able to spin
The spinning of the wheels results in a cutting action for better traction on loose surfaces. R
Traction control is still activated
R COLLISION PREVENTION ASSIST is no longer
available; nor is it activated if you brake firmly
with assistance from ESP ®
R PRE-SAFE ®
is no longer available; it is also not
activated if you brake firmly with assistance
from ESP ®
R PRE-SAFE ®
Brake is no longer available; it is
also not activated if you brake firmly with
assistance from ESP ®
R ESP ®
still provides support when you brake
firmly
ESP ®
trailer stabilisation General notes
If your vehicle/trailer combination begins to
lurch, ESP ®
assists you in this situation. ESP ®
slows the vehicle down by braking and limiting
the engine output until the vehicle/trailer com- bination has stabilised.
Important safety notes G
WARNING
If road and weather conditions are poor,
trailer stabilisation will not be able to prevent the vehicle/trailer combination from swerv-
ing. Trailers with a high centre of gravity can
tip over before ESP ®
can detect this. There is
a risk of an accident.
Always adapt your driving style to the prevail-
ing road and weather conditions.
If your vehicle/trailer combination begins to
lurch, you can only stabilise the vehicle/trailer
combination by depressing the brake firmly.
ESP ®
trailer stabilisation is active above speeds
of approximately 65 km/h.
ESP ®
trailer stabilisation does not work if ESP ®
is deactivated or disabled because of a malfunc- tion. 68
Driving safety syste
msSafety
Cruise control
General notes Cruise control maintains a constant road speed
for you. It brakes automatically in order to avoid
exceeding the set speed. You must select a low
gear in good time on long and steep downhill
gradients, especially if the vehicle is laden or
towing a trailer. By doing so, you will make use of
the braking effect of the engine. This relieves the load on the brake system and prevents the
brakes from overheating and wearing too
quickly.
Use cruise control only if road and traffic con-
ditions are appropriate for maintaining a steady speed for a prolonged period. You can store any
road speed above 30 km/h.
Important safety notes If you fail to adapt your driving style, cruise con-
trol can neither reduce the risk of an accident
nor override the laws of physics. Cruise control
cannot take into account road, weather or traffic
conditions. Cruise control is only an aid. You are responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good time
and for staying in lane.
Do not use cruise control:
R in road and traffic conditions which do not
allow you to maintain a constant speed, e.g. in
heavy traffic or on winding roads
R on smooth or slippery roads. Braking or accel-
erating can cause the drive wheels to lose
traction and the vehicle could then skid
R when there is poor visibility, e.g. due to fog,
heavy rain or snow
If there is a change of drivers, advise the new
driver of the speed stored. Cruise control lever :
To activate or increase speed
; LIM indicator lamp
= To activate at the current speed/last stored
speed
? To activate or reduce speed
A To switch between cruise control and varia-
ble SPEEDTRONIC
B To deactivate cruise control
You can operate cruise control and variable
SPEEDTRONIC with the cruise control lever.
The LIM indicator lamp on the cruise control
lever indicates which system you have selected:
R LIM indicator lamp off: cruise control is
selected.
R LIM indicator lamp on: variable SPEED-
TRONIC is selected.
When you activate cruise control, the stored
speed is shown in the multifunction display for
five seconds.
Selecting cruise control X
Check whether LIM indicator lamp :is off.
If it is off, cruise control is already selected. 156
Driving systemsDriving and parking
To avoid damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or similar situations:
R when towing away
R in a car wash
If you fail to adapt your driving style, DISTRONIC PLUS can neither reduce the risk of an accident
nor override the laws of physics. DISTRONIC
PLUS cannot take road and weather conditions
or traffic conditions into account. DISTRONIC
PLUS is only an aid. You are responsible for the distance to the vehicle in front, for vehicle
speed, for braking in good time and for staying in
lane.
Do not use DISTRONIC PLUS:
R in road and traffic conditions which do not
allow you to maintain a constant speed, e.g. in
heavy traffic or on winding roads
R on smooth or slippery roads. Braking or accel-
erating can cause the drive wheels to lose
traction and the vehicle could then skid
R when there is poor visibility, e.g. due to fog,
heavy rain or snow
DISTRONIC PLUS may not detect narrow vehi-
cles driving in front, e.g. motorcycles, or vehi-
cles driving on a different line.
In particular, the detection of obstacles can be
impaired in the case of:
R dirt on the sensors or obscured sensors
R snow or heavy rain
R interference by other radar sources
R the possibility of strong radar reflections, for
example, in multi-storey car parks
If DISTRONIC PLUS no longer detects a vehicle
in front, it may unexpectedly accelerate to the
speed stored.
This speed can:
R be too high for a filter lane or a slip road
R be so high in the right lane that you pass vehi-
cles driving on the left (in countries where
they drive on the right)
R be so high in the left lane that you pass vehi-
cles driving on the right (in countries where
they drive on the left)
If there is a change of drivers, advise the new
driver of the speed stored. Cruise control lever
:
To store the current speed or a higher speed
; To set the specified minimum distance
= LIM indicator lamp
? To store the current speed or calling up the
last stored speed
A To store the current speed or a lower speed
B To switch between DISTRONIC PLUS and
variable SPEEDTRONIC
C To deactivate DISTRONIC PLUS
You can operate DISTRONIC PLUS and variable
SPEEDTRONIC with the cruise control lever.
The LIM indicator lamp on the cruise control
lever indicates which system you have selected:
R LIM indicator lamp off: DISTRONIC PLUS is
selected.
R LIM indicator lamp on: variable SPEED-
TRONIC is selected.
Selecting DISTRONIC PLUS X
Check whether LIM indicator lamp :is off.
If it is off, DISTRONIC PLUS is already selec-
ted. 162
Driving systemsDriving and parking
Display messages
Possible causes/consequences and
M
MSolutions Cruise control off
Cruise control off Cruise control has been deactivated.
If a warning tone also sounds, cruise control has deactivated auto-
matically (Y page 156). 120 km/h 120 km/h
Maximum Maximum
speed
speedexcee‐
excee‐
ded
ded Only for certain countries: the maximum speed has been exceeded.
In addition, the multifunction display shows
120 km/h!
120 km/h!.
X Drive more slowly. Tyres
Display messages
Possible causes/consequences and
M MSolutions Tyre pressure
Tyre pressure
Check tyres Check tyres The tyre pressure loss warning system has detected a significant loss
in pressure.
A warning tone also sounds.
Possible causes:
R you have changed the positions of the wheels and tyres or fitted new
wheels and tyres
R the tyre pressure in one or more tyres has dropped
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed
increase
R the tyres may wear excessively and/or unevenly, which may greatly
impair tyre traction
R the driving characteristics, as well as steering and braking, may be
greatly impaired
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Safeguard the vehicle against rolling away (Y page 150).
X Check the tyres and, if necessary, follow the instructions for a flat
tyre (Y page 298).
X Check the tyre pressures and, if necessary, correct the tyre pres-
sure.
X Restart the tyre pressure loss warning system when the tyre pres-
sure is correct (Y page 318). Check Check
tyre
tyrepressures
pressures
then restart Run
then restart Run
Flat Indicator Flat Indicator The tyre pressure loss warning system generated a display message
and has not been restarted since.
X Set the correct tyre pressure in all four tyres.
X Restart the tyre pressure loss warning system (Y page 318).Run Flat Indicator Run Flat Indicator
inoperative inoperative The tyre pressure loss warning system is faulty.
X Consult a qualified specialist workshop. Display
messages
239On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions Rectify
Rectify
tyre pressure tyre pressure The tyre pressure is too low in at least one of the tyres, or the tyre
pressure difference between the wheels is too great.
X Check the tyre pressures at the next opportunity (Y page 318).
X If necessary, correct the tyre pressure.
X Restart the tyre pressure monitor (Y page 320).Check
Check
tyre(s)
tyre(s) The tyre pressure in one or more tyres has dropped significantly. The
wheel position is shown in the multifunction display.
A warning tone also sounds.
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed
increase
R the tyres may wear excessively and/or unevenly, which may greatly
impair tyre traction
R the driving characteristics, as well as steering and braking, may be
greatly impaired
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Safeguard the vehicle against rolling away (Y page 150).
X Check the tyres and, if necessary, follow the instructions for a flat
tyre (Y page 298).
X Check the tyre pressure (Y page 318).
X If necessary, correct the tyre pressure. Warning Warning
tyre defect tyre defect The tyre pressure in one or more tyres has dropped suddenly. The
wheel position is shown in the multifunction display.
G WARNING
If you drive with a flat tyre, there is a risk of the following hazards: R a flat tyre affects the ability to steer or brake the vehicle
R you could lose control of the vehicle
R continued driving with a flat tyre will cause excessive heat build-up
and possibly a fire
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Safeguard the vehicle against rolling away (Y page 150).
X Check the tyres and, if necessary, follow the instructions for a flat
tyre (Y page 298). 240
Display
messagesOn-board computer and displays
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
M Solutions ÷
N
The yellow ESP ®
warning lamp flashes while the vehicle is in motion.
ESP ®
or traction control has intervened because there is a risk of skidding or at
least one wheel has started to spin.
Cruise control or DISTRONIC PLUS is deactivated.
X Only depress the accelerator pedal as far as necessary when pulling away.
X Accelerate more gently while the vehicle is in motion.
X Adapt your driving style to suit the road and weather conditions.
X Do not deactivate ESP ®
.
In rare cases (Y page 68) it may be better to deactivate ESP ®
.
Observe the important safety notes on ESP ®
(Y page 67). å
N
The yellow ESP ®
OFF warning lamp is lit while the engine is running.
ESP ®
is deactivated.
G WARNING
If ESP ®
is deactivated, ESP ®
is unable to stabilise the vehicle.
Further driving systems or driving safety systems are thus restricted, e.g. Active
Blind Spot Assist. The system does not perform course-correcting braking appli-
cations.
There is an increased danger of skidding and risk of an accident.
X Reactivate ESP ®
.
In rare cases (Y page 68) it may be better to deactivate ESP ®
.
Observe the important safety notes on ESP ®
(Y page 67).
X Adapt your driving style to suit the road and weather conditions.
If ESP ®
cannot be activated:
X Drive on carefully.
X Contact a qualified specialist workshop immediately and have the ESP ®
system
checked. 250
Warning and indicator lamps in the instrument clusterOn-board computer and displays