Page 114 of 231

112LightingActivation
The high beam assist is activated by
pushing the indicator lever twice at a
speed above 25 mph.
The green control indicator l
illuminates continuously when the
assist is activated, the blue one 7
illuminates when high beam is on.
Control indicator l 3 87.
Deactivation
Push indicator lever once. It is also
deactivated when front or rear fog
lights are switched on.
If a headlight flash is activated when
the high beam is on, the high beam
assist will be deactivated.
If a headlight flash is activated when
the high beam is off, the high beam
assist will remain activated.
High beam assist is always active
after the ignition is switched on.
Dynamic automatic headlight
levelling
To prevent oncoming traffic fromdazzle, headlight levelling is
automatically adjusted based on inclination information measured by
front and rear axle, acceleration or
deceleration and vehicle speed.
Fault in Adaptive forward lighting
system
When the system detects a failure in
the Adaptive forward lighting system,
the system moves to a preset position to avoid dazzling of oncoming traffic.
Have the cause of the failure
remedied by a workshop as soon as
possible.Hazard warning flashers
Operated by pressing ¨.
Page 115 of 231

Lighting113Turn and lane-changesignalslever 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 >.
Rear fog light
Operated by pressing r.
Light switch in position AUTO:
switching on rear fog light will switch
headlights on automatically.
Light switch in position 8: rear fog
light can only be switched on with
front fog lights.
Reversing lights
The reversing light comes on when
the ignition is on and reverse gear is
selected.
Page 116 of 231
114LightingMisted light covers
The inside of the light housing may
mist up briefly in poor, wet and cold
weather conditions, in heavy rain or
after washing. The mist disappears
quickly by itself; to help switch on the
headlights.Interior lighting
Instrument panel illumination control
Brightness of the following lights can
be adjusted when the exterior lights
are on:
● instrument panel illumination
● steering wheel controls
Turn thumb wheel A and hold until
the desired brightness is obtained.
Interior lights
Courtesy lightFront
Operate rocker switch:
press v:offw:automatic switching on
and offpress u:on
Page 117 of 231
Lighting115Rear
Operate rocker switch:
⃒:onw:automatic switching on and off§:offReading lights
The front reading lights are located inthe overhead console.
Press s and t to turn each light on
or off.
Glove box lighting Illuminates when the glovebox is
opened.
Sunvisor lights Illuminates when the cover is opened.
Lighting features
Entry lighting
Welcome lighting Following lights are switched on for a
short time by unlocking the vehicle
with the radio remote control:
● low beam
● sidelights
● tail lights
● number plate lights
● instrument panel light
● interior lights
This function works only in the dark
and facilitates locating the vehicle.
Activation or deactivation of this
function can be changed in the
vehicle settings. Vehicle
personalisation 3 99.
The following lights will additionally switch on when driver's door is
opened:
● some switches
● some interior lights
Page 118 of 231
116LightingExit lighting
Low beam, sidelights and tail lights
illuminate the surrounding area for an adjustable time after leaving the
vehicle.
Switching on
Activation, deactivation and duration of lighting of this function can be
changed in the vehicle settings.
Vehicle personalisation 3 99.
1. Switch off ignition.
2. Remove ignition key.
3. Open driver's door.
4. Pull turn signal lever.
5. Close driver's door.
If the driver's door is not closed the
lights switch off after a few seconds.
The lighting is switched off
immediately if the turn signal lever is pulled while the driver's door is open.
Battery discharge protection To prevent discharge of the battery
when the ignition is switched off,
some interior lights are switched off
automatically after some time.
Page 129 of 231

Driving and operating127Automatic Starter ControlThis function controls the engine
starting procedure. The driver does
not need to hold the key in position 3.
Once applied, the system will go on starting automatically until the engine is running. Because of the checkingprocedure, the engine starts running
after a short delay.
Possible reasons for a non-starting
engine:
● clutch pedal not operated (manual transmission)
● brake pedal not operated or selector lever not in P or N
(automatic transmission)
● timeout occurred
Turbo engine warm-up Upon start-up, engine available
torque may be limited for a short time,
especially when the engine
temperature is cold. The limitation is
to allow the lubrication system to fully protect the engine.Overrun cut-off
The fuel supply is automatically cut off during overrun, i.e. when the vehicle
is driven with a gear engaged but
accelerator is released.
Stop-start system The stop-start system helps to save
fuel and to reduce the exhaust
emissions. When conditions allow, it
switches off the engine as soon as the
vehicle is at a low speed or at a
standstill, e.g. at a traffic light or in a
traffic jam. It starts the engine
automatically as soon as the clutch is
depressed. A battery sensor ensures
that an Autostop is only performed if
the battery is sufficiently charged for
a restart.
Activation
The stop-start system is available as
soon as the engine is started, the
vehicle starts-off and the conditions
as stated below in this section are
fulfilled.Deactivation
Deactivate the stop-start system
manually by pressing Ï.
Deactivation is indicated when the
LED in the button extinguishes.
Autostop If the vehicle is at a low speed or at a
standstill, activate an Autostop as
follows:
● Depress the clutch pedal.
● Set the lever in neutral.
● Release the clutch pedal.
The engine will be switched off while
the ignition stays on.
Page 138 of 231

136Driving and operatingBrakes
The brake system comprises two
independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when the brake pedal
is depressed firmly. Considerably
more force is needed for this. The
braking distance is extended. Seek the assistance of a workshop before
continuing the journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
Control indicator R 3 84.
Antilock brake system
Antilock brake system (ABS)
prevents the wheels from locking.ABS starts to regulate brake pressure as soon as a wheel shows a tendency to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that the pedal is pulsating. Do not reduce
the pressure on the pedal.
After starting-off the system performs
a self-test which may be audible.
Control indicator u 3 84.
Adaptive brake light
During full braking, all three brake
lights flash for the duration of ABS
control.Fault9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
hard braking, the vehicle can no longer be steered and may
swerve.
Have the cause of the fault remedied
by a workshop.
Parking brake
Page 139 of 231

Driving and operating1379Warning
Always apply parking brake firmly
without operating the release
button, and apply as firmly as
possible on a downhill or uphill
slope.
To release the parking brake, pull
the lever up slightly, press the
release button and fully lower the
lever.
To reduce the operating forces of
the parking brake, depress the
brake pedal at the same time.
Control indicator R 3 84.
Brake assist
If the brake pedal is depressed
quickly and forcefully, maximum
brake force is automatically applied
(full braking).
Maintain steady pressure on the
brake pedal for as long as full braking is required. Maximum brake force is
automatically reduced when the
brake pedal is released.
Hill start assist
The system helps prevent unintended movement when driving away on
inclines.
When releasing the brake pedal after
stopping on an incline, the brakes
remain on for a further two seconds.
The brakes release automatically as
soon as the vehicle begins to
accelerate.
The hill start assist is not active during
an Autostop.
Stop-start system 3 127.Ride control systems
Traction Control system The Traction Control system (TC) is a component of the Electronic Stability
Control (ESC) 3 138.
TC improves driving stability when necessary, regardless of the type of
road surface or tyre grip, by
preventing the drive wheels from
spinning.
As soon as the drive wheels starts to spin, engine output is reduced and
the wheel spinning the most is braked
individually. This considerably
improves the driving stability of the
vehicle on slippery road surfaces.
TC is operational after each engine
start as soon as the control indicator
b extinguishes.
When TC operates b flashes.