112LightingLightingExterior lighting.......................... 112
Light switch .............................. 112
Automatic light control .............113
High beam ............................... 114
High beam assist .....................114
Headlight flash ......................... 115
Headlight range adjustment ....115
Headlights when driving abroad .................................... 115
Daytime running lights .............116
Adaptive forward lighting .........116
Hazard warning flashers ..........119
Turn and lane-change signals . 120
Front fog lights ......................... 120
Rear fog lights ......................... 120
Parking lights ........................... 121
Reversing lights .......................121
Misted light covers ...................121
Interior lighting ........................... 121
Instrument panel illumination control ..................................... 121
Interior lights ............................ 122
Reading lights .......................... 122
Sunvisor lights ......................... 122Lighting features ........................123
Entry lighting ............................ 123
Exit lighting .............................. 123
Battery discharge protection ....124Exterior lighting
Light switch
Turn light switch:
7:lights off8:sidelights9:headlights
Control indicator 8 3 94.
Driving and operating135Driving and
operatingDriving hints ............................... 136
Control of the vehicle ...............136
Steering ................................... 136
Ground clearance ....................136
Starting and operating ...............137
New vehicle running-in ............137
Ignition switch positions ...........137
Retained power off ..................137
Starting the engine ..................137
Overrun cut-off ........................ 138
Stop-start system ....................138
Parking .................................... 140
Engine exhaust .......................... 142
Diesel particle filter ..................142
Catalytic converter ...................143
AdBlue ..................................... 143
Automatic transmission ..............146
Transmission display ...............146
Selector lever .......................... 147
Manual mode ........................... 148
Electronic driving programmes 148
Fault ........................................ 148
Interruption of power supply ....149Manual transmission ..................149
Brakes ........................................ 150
Antilock brake system .............150
Parking brake .......................... 151
Brake assist ............................. 152
Hill start assist ......................... 153
Ride control systems .................153
Traction Control system ..........153
Electronic Stability Control ......154
Interactive driving system ........155
Driver assistance systems .........157
Cruise control .......................... 157
Speed limiter ........................... 158
Forward collision alert .............160
Following distance indication ...162
Parking assist .......................... 163
Side blind spot alert .................170
Rear view camera ...................171
Traffic sign assistant ................173
Lane departure warning ..........177
Fuel ............................................ 178
Fuel for petrol engines .............178
Fuel for diesel engines ............178
Refuelling ................................ 179
Fuel consumption - CO 2-
Emissions .............................. 181
Trailer hitch ................................ 181
General information .................181Driving characteristics and
towing tips .............................. 182
Trailer towing ........................... 182
Towing equipment ...................183
136Driving and operatingDriving 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. All
systems function during an Autostop,
but there will be a controlled reduction
in power steering assist and vehicle
speed is reduced.
Stop-start system 3 138.
Idle boost
If charging of the battery is required
due to battery condition, the power
output of the generator has to be
increased. This will be achieved by an idle boost which may be audible. A
message is displayed 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's 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.
Control indicator c 3 91.Caution
Vehicles equipped with hydraulic
power steering:
If the steering wheel is turned until it reaches the end of its travel, and
is held in that position for more
than 15 seconds, damage may
occur to the power steering
system and there may be loss of
power steering assist.
Ground clearance
Due to the reduced ground clearance,
the vehicle can be damaged
depending on the vehicle loading and
appearance of the ground. Take
special care and drive slowly on steep driveways, entry and exit of parking
garages, high kerbs and uneven
surfaces. If possible, drive diagonally
with one wheel after another when running over kerbs or uneven
surfaces.
Driving and operating145Notice
A volume of at least 5 litres of AdBlue
must be added when refilling.
Otherwise the refilling of AdBlue
may not be detected by the system.
In case AdBlue refill is not
successfully detected:
1. Continuously drive the vehicle for 10 minutes making sure that
vehicle speed is always higher
than 12 mph.
2. If AdBlue refill is detected successfully, AdBlue supply
driven limitations will disappear.
If AdBlue refill is still not detected
seek the assistance of a workshop.
If AdBlue must be refilled at
temperatures below -11 °C, the
refilling of AdBlue may not be
detected by the system. In this case, park the vehicle in a space with a
higher ambient temperature until
AdBlue is liquefied.Notice
When unscrewing the protective cap from the filler neck, ammonia fumes
may emerge. Do not inhale as the fumes have a pungent smell. The
fumes are not harmful by inhalation.
The vehicle must be parked on a level surface.
The filler neck for AdBlue is located
behind the fuel filler flap.
The fuel filler flap is located at right rear side of the vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked.
1. Remove key from ignition lock.
2. Close all doors to avoid ammonia fumes entering the interior of the
vehicle.
3. Pull fuel filler flap at the recess and open 3 179.
4. Unscrew protective cap from the
filler neck.
5. Open AdBlue canister.
6. Mount one end of the hose on the
canister and screw the other end
on the filler neck.
7. Lift the canister until it is empty.
8. Unscrew the hose from the filler neck.
9. Mount the protective cap and turn
clockwise until it engages.
Notice
Dispose of AdBlue canister and
hose according to environmental
requirements.
146Driving and operatingExchanging AdBlue
If less than 5 litres of AdBlue have
been refilled during the last 2 years,
the remaining fluid should be
exchanged since AdBlue has a
limited durability. Seek the assistance of a workshop.Caution
Disregard could lead to damage to
the selective catalytic reduction
system.
Automatic transmission
The automatic transmission permits
automatic gearshifting (automatic
mode) or manual gearshifting
(manual mode).
Manual shifting is possible in manual
mode by tapping the selector lever
3 148.
Transmission display
The mode or selected gear is shown
in the transmission display.
In automatic mode, the driving
programme is indicated by D in the
Driver Information Centre.
In manual mode, M and the number
of the selected gear is indicated.
R indicates reverse gear.
N indicates neutral position.
P indicates park position.
152Driving and operatingadequate force. For maximum
force, e.g. parking with trailer or on
inclines, pull switch m twice.
The electric parking brake is
applied when control indicator m
illuminates 3 90.
The electric parking brake can always
be activated, even if the ignition is off.
Do not operate electric parking brake
system too often without engine
running as this will discharge the
vehicle battery.
Before leaving the vehicle, check the electric parking brake status. Control
indicator m 3 90.
Releasing
Switch on ignition. Keep brake pedal
depressed then push switch m.
Drive away function
Vehicles with manual transmission:
Depressing the clutch pedal and then
slightly releasing the clutch pedal and
slightly depressing the accelerator
pedal releases the electric parking
brake automatically. This is not
possible when the switch m is pulled
at the same time.
Vehicles with automatic transmission: Engaging D and then depressing the
accelerator pedal releases the
electric parking brake automatically. This is not possible when the switch
m is pulled at the same time.
Dynamic braking when vehicle is
moving
When the vehicle is moving and the
switch m is kept pulled, the electric
parking brake system will decelerate
the vehicle, but will not apply
statically.
As soon as the switch m is released,
dynamic braking will be stopped.
Fault
Failure mode of electric parking brake
is indicated by control indicator j and
by a vehicle message which is
displayed in the Driver Information
Centre.Apply electric parking brake: pull and
hold the switch m for more than
5 seconds. If control indicator m
illuminates, electric parking brake is applied.
Release electric parking brake: push
and hold the switch m for more than
2 seconds. If control indicator m
extinguishes, electric parking brake is
released.
Control indicator m flashes: electric
parking brake is not fully applied or released. When continuously
flashing, release electric parking
brake and retry applying.
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.
Driving and operating163If there is no vehicle ahead or the
vehicle ahead is out of range, two
dashes will be displayed: -.- s.
Parking assist Rear parking assist9 Warning
The driver bears full responsibility
for the parking manoeuvre.
Always check the surrounding
area while reversing and using the rear parking assist system.
The rear parking assist makes
parking easier by measuring the
distance between the vehicle and
rear obstacles. It informs and warns
the driver by giving acoustic signals.
The system has four ultrasonic
parking sensors in the rear bumper.
Activation
When reverse gear is engaged, the
system is ready to operate
automatically.
An illuminated LED in the parking
assist button r indicates that the
system is ready to operate.
Indication
The system warns the driver with
acoustic signals against potentially
hazardous obstacles behind the
vehicle. The interval between the
sounds becomes shorter as the
vehicle gets closer to that obstacle.
When the distance is less than
approx. 30 cm, the sound is
continuous.
Additionally, the distance to obstacles can be shown in the Driver
Information Centre.
Deactivation
The system automatically switches
off when reverse gear is disengaged.
To switch on the system again,
engage reverse gear.
Manual deactivation is also possible by pressing the parking assist button
r .
164Driving and operatingWhen the system is deactivated, the
LED in the button extinguishes.
Additionally, Park Assist Off pops-up
in the Driver Information Centre when the system is deactivated manually.
Fault
In the event of a fault in the system or if the system does not work due to
temporary conditions like ice covered
sensors, a message is displayed in
the Driver Information Centre.
Vehicle messages 3 101.
Front-rear parking assist9 Warning
The driver bears full responsibility
for the parking manoeuvre.
Always check the surrounding
area when driving backwards or
forwards while using parking
assist system.
The front-rear parking assist
measures the distance between the vehicle and obstacles in front and
behind the vehicle. The system gives acoustic signals and display
messages.
The system has four ultrasonic
parking sensors each in the rear and
front bumper.
It uses two different acoustic warning
signals for the front and rear
monitoring areas, each with a
different tone frequency. The signal
for front obstacles sounds via the
front speakers, for rear obstacles it
sounds via the rear speakers.
Parking assist button and operation
logic
Front-rear parking assist is equipped
with r. If the vehicle is additionally
equipped with advanced parking
assist (see the following separate
description) the system is equipped
with D. Both systems will be
operated by pressing D.
Short press of r or D deactivates
or activates the front parking assist.
Long press of D (approx.
one second) activates or deactivates
the advanced parking assist.