98Instruments and controlsTurn lightsO flashes green.
Flashes if a turn light or the hazard
warning flashers are activated.
Rapid flashing: failure of a turn light or
associated fuse.
An audible warning can be heard
when the turn lights are on. When
towing a trailer, the pitch of the
audible warning changes.
Bulb replacement 3 277.
Fuses 3 285.
Turn lights 3 113.
Seat belt reminder X illuminates or flashes red in the
overhead console.
If the seat belt is unfastened, control
indicator X will flash when vehicle
speed exceeds approx. 16 km/h. A warning chime also sounds for
approx. 90 seconds.
Depending on the vehicle, the control
indicator flashes if the front
passenger seat belt is not fastened.If the seat belt is fastened, the
indicator light extinguishes.9 Warning
Fasten seat belt before each trip.
In the event of an accident, people
not wearing seat belts endanger their fellow occupants and
themselves.
Three-point seat belts 3 56.
Airbag and belt tensioners
v illuminates yellow.
When the ignition is switched on, the control indicator illuminates briefly. If
it does not illuminate or illuminates
whilst driving, there is a fault in the
airbag system. Seek the assistance
of a workshop. The airbags and belt
pretensioners may fail to trigger in the event of an accident.
Deployment of the belt pretensioners
or airbags is indicated by continuous
illumination of v.
9 Warning
Have the cause of the fault
remedied immediately by a
workshop.
Belt pretensioners 3 55.
Airbag system 3 59.
Airbag deactivation Ó illuminates yellow.
Illuminates for approx. 60 seconds
after the ignition is switched on. The
front passenger airbag is activated.
W illuminates yellow when the
ignition is switched on and remains
illuminated when the front passenger
airbag has been deactivated 3 63.
224Driving and operatingDriving and
operatingDriving hints ............................... 225
Driving economically ...............225
Control of the vehicle ...............225
Steering ................................... 225
Starting and operating ...............226
New vehicle running-in ............226
Ignition switch positions ...........226
Starting the engine ..................227
Idle speed control ....................228
Overrun cut-off ........................ 228
Stop-start system ....................228
Parking .................................... 231
Air suspension ......................... 231
Engine exhaust .......................... 233
Diesel particle filter ..................233
Catalytic converter ...................234
AdBlue ..................................... 234
Manual transmission ..................241
Manual transmission automa‐ ted .............................................. 241
Transmission display ...............241
Starting the engine ..................242
Selector lever .......................... 242Manual mode........................... 243
Electronic driving programmes 243
Fault ........................................ 244
Interruption of power supply ....244
Brakes ........................................ 244
Antilock brake system .............244
Parking brake .......................... 245
Brake assist ............................. 246
Hill start assist ......................... 246
Ride control systems .................247
Traction Control system ..........247
Electronic Stability Control ......248
Limited-slip rear axle ...............249
Driver assistance systems .........249
Cruise control .......................... 249
Speed limiter ........................... 251
Active emergency braking .......253
Parking assist .......................... 255
Side blind spot alert .................257
Rear view camera ...................259
Lane departure warning ..........261
Fuel ............................................ 262
Fuel for diesel engines ............262
Refuelling ................................ 263
Trailer hitch ................................ 265
General information .................265
Driving characteristics and towing tips .............................. 265
Trailer towing ........................... 265Towing equipment ...................266
Trailer stability assist ...............266
Auxiliary features .......................266
Power take-off ......................... 266
Driving and operating247Ride control systems
Traction Control system The traction control system is a
component part of the Electronic
Stability Control (ESC) which
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 start 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.
Traction control system is operational
as soon as the ignition is switched on and control indicator b extinguishes
in the instrument cluster.
When traction control system is active b flashes.9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 101.
Trailer stability assist 3 266.
Enhanced traction function
If necessary, in the event of soft
ground, mud or snow-covered road
surfaces, the traction control system
can be deactivated to enhance
traction:
Press Ø.
A message appears in the Driver
Information Centre.
When vehicle speed reaches
50 km/h, the system switches
automatically to standard traction control system operation. A message
appears in the Driver Information
Centre.
Traction control system is reactivated by pressing Ø again.
A message appears in the Driver
Information Centre.
Fault
If the system detects a fault, control
indicator b 3 101 illuminates together
with j 3 99 in the instrument cluster
and a corresponding message
appears in the Driver Information
Centre.
248Driving and operatingThe traction control system is not
operational. Have the cause of the
fault remedied by a workshop.
Vehicle messages 3 106.
Driver Information Centre 3 105.
Electronic Stability Control
The Electronic Stability Control (ESC) improves driving stability when
necessary, regardless of the type of
road surface or tyre grip. It also
prevents the drive wheels from
spinning.
As soon as the vehicle starts to
swerve (understeer / oversteer),
engine output is reduced and the wheels are braked individually. This
considerably improves the driving
stability of the vehicle on slippery road
surfaces.
ESC is operational as soon as the
ignition is switched on and control indicator b extinguishes in the
instrument cluster.
When ESC comes into action b
flashes.9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 101.
Trailer stability assist 3 266.
Enhanced traction function
If necessary, in the event of soft
ground, mud or snow-covered road
surfaces, ESC can be deactivated to
enhance traction:
Press Ø.
A message appears in the Driver
Information Centre.
When vehicle speed reaches
50 km/h, the system switches
automatically to standard ESC
operation. A message appears in the
Driver Information Centre.
ESC is reactivated by pressing Ø
again.
ESC is also reactivated the next time
the ignition is switched on.
Engine drag torque control The engine drag torque control
system is an integral feature of ESC. When downshifting under slippery
road conditions, the engine speed
and torque increases to help prevent
locking of the drive wheels during
sudden deceleration.
Side wind assist The side wind assist is an integralfeature of ESC and maintaines the
vehicle's path. When the system
comes into action " appears in the
Driver Information Centre.
Driving and operating255pedal to override the automatic
braking if the situation and the
surroundings permit.
In the following cases, active
emergency braking performance is limited:
● driving on winding or hilly roads
● detecting all vehicles, especially vehicles with a trailer, tractors,
muddy vehicles, etc.
● detecting a vehicle when weather
limits visibility, such as in fog,
rain, or snow
● driving during nighttime
● sensor in the windscreen or radar
unit behind the front bumper
blocked by snow, ice, slush, mud, dirt, etc.
● windscreen damaged or affected
by foreign objects, e.g. stickers
Complete attention is always required
while driving, and you should be
ready to take action and apply the
brakes and / or steer the vehicle to
avoid crashes.Fault
In case the system requires a service,
a message is displayed in the Driver
Information Centre.
Additionally, warning lights l and
j illuminate at the same time.
When the system detects that its
function is not available, warning light l or j illuminates and stays on.
Additionally, a message in the Driver Information Centre appears. The
system may be temporarily disrupted
(for example: radar or camera
obscured by dirt, mud, snow etc.). In
this case, park the vehicle and switch
off the engine. Clean the windscreen
area around the camera and the
detection zone of the radar in the front bumper. When the warning lights and
messages still appear after starting
the vehicle again, seek the
assistance of a workshop.Parking assist9 Warning
It is the driver who bears full
responsibility for the parking
manoeuvre.
Always check the surrounding
area while reversing and using the rear parking assist system.
The parking assist measures the
distance between the vehicle and
obstacles behind and, if available, in
front of the vehicle. It informs and
warns the driver by giving acoustic
signals.
The system consists of four ultrasonic parking sensors in the rear bumper
and, if available, four ultrasonic
parking sensors in the front bumper.
258Driving and operatingDeactivation
To deactivate the system, press .
with the ignition on. The LED in the
button illuminates when deactivated.
To reactivate the system, press .
again. The LED in the button
extinguishes.
Functionality
When the system detects a vehicle in the side blind zone while driving
forwards, an LED will illuminate in the
relevant exterior mirror.
The LED comes on immediately when being passed.
The LED comes on after a delay when
passing another vehicle slowly.
The LED flashes when the turn lights
are activated and a vehicle is
detected.
Operation conditions
The following conditions must be
fulfilled for proper operation:
● all vehicles are moving in the same direction and in adjacent
lanes
● the speed of your vehicle is between 30 km/h and 140 km/h
● the traffic flow is normal
● driving on a straight or slightly curved road
● the vehicle is not pulling a trailer
● the sensors are not covered by mud, ice or snow
● the warning zones in the exterior mirrors or the detection zones in
front and rear bumper are not
covered
No alert will be given in the following
situations:
● in the presence of non-moving objects, e.g. parked vehicles,
barriers, street lamps, road signs
● with vehicles moving in the opposite direction
Driving and operating265Trailer hitch
General information
Only use towing equipment that has
been approved for your vehicle.
Entrust fitting of towing equipment at
a later date to a workshop. It may be
necessary to make changes that
affect the cooling system, heat
shields or other equipment.
Driving characteristics and towing tips
In the case of trailers with brakes,
attach the breakaway stopping cable.
Before attaching a trailer, lubricate
the coupling ball. However, do not do
so if a stabiliser, which acts on the coupling ball, is being used to reduce
snaking movements. For trailers with
low driving stability the use of a
stabiliser is recommended.
A maximum speed of 80 km/h must
not be exceeded, even in countries
where higher speeds are permitted.If the trailer starts snaking, drive more slowly, do not attempt to correct the
steering and brake sharply if
necessary.
When driving downhill, drive in the
same gear as if driving uphill and
drive at a similar speed.
Adjust tyre pressure to the value
specified for full load 3 317.
Trailer towing
Trailer loads The permissible trailer loads are
vehicle-dependent and engine-
dependent maximum values which
must not be exceeded. The actual
trailer load is the difference between
the actual gross weight of the trailer
and the actual coupling socket load
with the trailer coupled.
The permissible trailer loads are
specified in the vehicle documents. In
general, they are valid for gradients
up to max. 12%.
The permitted trailer load applies up to the specified incline and up to an
altitude of 1000 m above sea level.Since engine power decreases as
altitude increases due to the air
becoming thinner, therefore reducing
climbing ability, the permissible gross
train weight also decreases by 10%
for every 1000 m of additional
altitude. The gross train weight does
not have to be reduced when driving
on roads with slight inclines (less than 8%, e.g. motorways).
The permissible gross train weight
must not be exceeded. This weight is
specified on the identification plate
3 316.
Vertical coupling load
The vertical coupling load is the load
exerted by the trailer on the coupling
ball. It can be varied by changing the
weight distribution when loading the
trailer.
The maximum permissible vertical
coupling load is specified on the
towing equipment identification plate
and in the vehicle documents. Always aim for the maximum load, especially in the case of heavy trailers. The
vertical coupling load should never
fall below 25 kg.
266Driving and operatingIn the case of trailer loads of
1200 kg or more, the vertical coupling load should not be less than 50 kg.
Rear axle load When the trailer is coupled and the
towing vehicle fully loaded (including all occupants), the permissible rear
axle load (see identification plate or
vehicle documents) can be exceeded by 15%. If the permissible rear axle
load is exceeded, a maximum speed
of 80 km/h applies and the tyre
pressure must be increased by 20
kPA / 0.2 bar.
Towing equipment For vehicles fitted with towing
equipment, when connected to a
trailer the pitch of the audible warning
changes upon operation of the turn
lights.
The pitch of the audible warning will
change if a turn light on the trailer or
the towing vehicle fails.Trailer stability assist
If the system detects snaking
movements, engine power is reduced
and the vehicle / trailer combination is
selectively braked until the snaking
ceases. While the system is working,
keep steering wheel as still as
possible.
Trailer stability assist is a function of
the Electronic Stability Control (ESC)
3 248.Auxiliary features
Power take-off
Activation
To activate the power take-off, with
the vehicle stationary and the engine
idling:
● Set the gearshift lever to neutral (vehicles with manual
transmission automated:
selector lever in position N).
● Depress the clutch pedal.