Page 106 of 267
104Instruments and controlsSpeech recognition
Description see Infotainment manual.
Vehicle personalisation 3 106.
Valet mode
Some functions of the Driver
Information Centre and the Info-
Display can be limited for some
drivers.
Activation or deactivation of valet
mode can be set in the menu
Settings in the vehicle personalisation
menu.
Vehicle personalisation 3 106.
For more information see
Infotainment manual.Vehicle messages
Messages are indicated in the Driver
Information Centre, in some cases
together with a warning and signal
chime.
On Midlevel display press SET/CLR
on the turn signal lever to confirm a
message.
On Uplevel display press 9 on the
steering wheel to confirm a message.
Vehicle and service messages
The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
The system displays messages
regarding the following topics:
● service messages
● fluid levels
● anti-theft alarm system
● brakes
● drive systems
● ride control systems
Page 122 of 267

120LightingTown light
Activated automatically at a speed upto approx. 34 mph and in situations
with exterior ambient light. The light is
wide and symmetrical. A special
beam pattern is designed to avoid
glare for other road users.
Country light
Activated automatically at a speed
above approx. 34 mph when driving
in rural areas. The illumination of the
current lane and the side of the roadis improved. Oncoming and
preceding vehicles are not dazzled.
Curve light
Particular LEDs, based on steering
angle and speed, are additionally
triggered to improve lighting in
curves. This function is activated at
speeds from 25 mph to 43 mph and
reacts to steering angle.
Corner light
When turning off, depending on the
steering angle and the turn signal light, particular LEDs are triggered
which illuminate the direction of
travel. It is activated up to a speed of
25 mph.
Reverse parking function
To assist driver's orientation when
parking, both corner lights and
reversing light illuminate when
headlights are on and reverse gear is engaged. They remain illuminated for
a short time after disengaging reverse gear or until driving faster than
4 mph in a forward gear.
High beam assistThis feature allows the high beam to
function as main driving light at night.
The camera in the windscreen
detects the lights of oncoming or
preceding vehicles. Each LED on
right or left side can be triggered or
faded out particulary according to the traffic situation. This gives the best
light distribution without glaring other
road users. Once activated, high
beam assist remains active and
switches high beam on and off
depending on surrounding
conditions. The latest setting of the
high beam assist will remain after the ignition is switched on again.
Page 125 of 267
Lighting123
The illustrations show different
versions.
In the event of an accident with airbag
deployment, the hazard warning
flashers are activated automatically.
Turn and lane-change
signalslever up:right turn signallever down:left turn signal
If the lever is moved past the
resistance point, the turn signal is
switched on constantly. When the
steering wheel moves back, the turn
signal is automatically deactivated.
For three flashes, e.g. when changing
lanes, press the lever until resistance
is felt and then release.
With a trailer connected, turn signal
flashes six times and tone frequency
changes when pressing the lever until resistance is felt and then releasing.
Move the lever to the resistance point
and hold for longer indication.
Switch the turn signal off manually by
moving the lever to its original
position.
Front fog lights
Operated by pressing >.
Light switch in position AUTO:
switching on front fog lights will switch headlights on automatically.
Page 131 of 267

Climate control129Demisting and defrosting
●Press V: the air distribution is
directed towards the windscreen.
● Set temperature control to warmest level.
● Set fan speed to highest level.
● Switch on heated rear window Ü.
● Open side air vents as required and direct them towards the doorwindows.
Air conditioning system
In addition to the controls of the
heating and ventilation system, the air conditioning system has controls for:
A/C:cooling4:air recirculation
Heated rear window Ü 3 38, Heated
seats ß 3 47, Ventilated seats A
3 48, Heated steering wheel A 3 76.
Cooling A/C
Press A/C to switch on cooling.
Activation is indicated by illumination
of the LED in the button. Cooling is
only functional when the engine is
running and climate control fan is switched on.
Press A/C again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above
the freezing point. Therefore
condensation may form and drip from under the vehicle.
Page 134 of 267
132Climate controlHeated rear window Ü 3 38, Heated
seats ß 3 47, Ventilated seats A
3 48, Heated steering wheel A 3 76.
Each change of settings is shown in
the Info-Display for a few seconds.
The electronic climate control system
is only fully operational when the
engine is running.
Automatic mode AUTO
Basic setting for maximum comfort:
● Press AUTO, the air distribution
and fan speed are regulated
automatically.
● Open all air vents to allow optimised air distribution in
automatic mode.
● Press A/C to switch on optimal
cooling and demisting. Activation is indicated by illumination of the
LED in the button.
● Set the preselected temperatures for driver and front
passenger using the left and right
rotary knob. Recommended
temperature is 22 °C.
The fan speed regulation in automatic mode can be changed in the Settings menu.
Vehicle personalisation 3 106.
Temperature preselection
Page 140 of 267

138Driving and operatingDriving and
operatingDriving hints ............................... 139
Control of the vehicle ...............139
Steering ................................... 139
Starting and operating ...............139
New vehicle running-in ............139
Ignition switch positions ...........139
Power button ........................... 140
Retained power off ..................141
Starting the engine ..................142
Overrun cut-off ........................ 144
Stop-start system ....................144
Parking .................................... 147
Engine exhaust .......................... 148
Diesel particle filter ..................148
Catalytic converter ...................149
Automatic transmission ..............150
Transmission display ...............150
Selector lever .......................... 150
Manual mode ........................... 151
Electronic driving programmes 152
Fault ........................................ 152
Interruption of power supply ....152
Manual transmission ..................153Manual transmission automa‐
ted .............................................. 154
Transmission display ...............154
Selector lever .......................... 154
Manual mode ........................... 155
Electronic driving programmes 156
Fault ........................................ 156
Brakes ........................................ 156
Antilock brake system .............156
Parking brake .......................... 157
Brake assist ............................. 159
Hill start assist ......................... 159
Ride control systems .................159
Traction Control system ..........159
Electronic Stability Control ......160
Sport mode .............................. 162
Driver assistance systems .........162
Cruise control .......................... 162
Speed limiter ........................... 164
Forward collision alert .............166
Following distance indication ...168
Active emergency braking .......169
Parking assist .......................... 170
Side blind spot alert .................178
Rear view camera ...................179
Traffic sign assistant ................181
Lane keep assist .....................185
Fuel ............................................ 187
Fuel for petrol engines .............187Fuel for diesel engines ............187
Refuelling ................................ 188
Fuel consumption - CO 2-
Emissions .............................. 189
Trailer hitch ................................ 190
General information .................190
Driving characteristics and towing tips .............................. 190
Trailer towing ........................... 190
Towing equipment ...................191
Trailer stability assist ...............193
Page 141 of 267

Driving and operating139Driving hints
Control of the vehicle
Never coast with engine not
running (except during Autostop)
Many systems will not function in this
situation ( e.g. brake servo unit, power
steering). Driving in this manner is a
danger to yourself and others.
Stop-start system 3 144.
Idle boost
If charging of the vehicle battery is
required due to battery condition, the
power output of the generator must
be increased. This will be achieved by
an idle boost which may be audible.
A message appears in the Driver
Information Centre.
Pedals To ensure the pedal travel is
uninhibited, there must be no mats in
the area of the pedals.Use only floor mats, which fit properly
and are fixed by the retainers on the
driver side.
Steering
If power steering assist is lost
because the engine stops or due to a system malfunction, the vehicle can
be steered but may require increased
effort.Starting and operating
New vehicle running-in Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period fuel and engine oil consumption may be
higher and the cleaning process of
the diesel particle filter may take
place more often. Autostop may be
inhibited to allow for charging the
battery.
Diesel particle filter 3 148.
Ignition switch positions Turn key:
Page 142 of 267

140Driving and operating0:ignition off: Some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was
on previously1:accessory power mode: Steering wheel lock released, some
electrical functions are operable,
ignition is off2:ignition on power mode: Ignition
is on, diesel engine is preheating.
Control indicators illuminate and
most electrical functions are
operable3:engine start: Release key after
starting procedure beginsSteering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Power button
Electronic key must be inside the
vehicle.
Accessory power mode
Press Engine Start/Stop once without
operating clutch or brake pedal. The yellow LED in the button illuminates.
Steering wheel lock is released and
some electrical functions are
operable, ignition is off.Ignition on power mode
Press and hold Engine Start/Stop for
6 seconds without operating clutch or brake pedal. The green LED in the
button illuminates, diesel engine is
preheating. Control indicators
illuminate and most electrical
functions are operable.Engine start
Operate clutch pedal (manual
transmission) or brake pedal
(automatic transmission or manual
transmission automated) and press
Engine Start/Stop once more.
Release button after starting
procedure begins.Ignition off
Press Engine Start/Stop briefly in
each mode or when engine is running and vehicle is stationary. Some