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Driving and operating185parking assist sensors, e.g. below
the bumper or underneath the
vehicle, are not displayed.
Do not reverse or park the vehicle using only the rear view camera.
Always check the surrounding of
the vehicle before driving.
Switching on
Rear view camera is automatically
activated when reverse gear is
engaged.
Functionality
The camera is mounted in the
tailgate.
The area displayed by the camera is
limited. The distance of the image that
appears on the display differs from
the actual distance.
Guidelines
Dynamic guidelines are horizontal
lines at one metre intervals projected
onto the picture to define the distance
to displayed objects.
Trajectory lane of the vehicle is
shown in accordance with the
steering angle.
Deactivation of guidelines
Guidelines can be deactivated in the
Info Display. Select Settings I Vehicle
I Collision detection I Rear view
camera guidelines I § .
Info Display 3 103.
Vehicle personalisation 3 106.
Switching off
The camera is switched off when a
forward gear is engaged.
System limitations The rear view camera may not
operate properly when:
● the surrounding is dark
● the beam of headlights is shining
directly into the camera lenses
● weather limits visibility, such as fog, rain, or snow
● the camera lenses are blocked by snow, ice, slush, mud, dirt.
Clean the lense, rinse with water, and wipe with a soft cloth
● the tailgate will be opened
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Driving and operating189The panoramic view system may not
operate properly when:
● The surrounding is dark.
● The sun or the beam of headlights is shining directly into
the camera lenses.
● Weather limits visibility, such as fog, rain, or snow.
● The camera lenses are blocked by snow, ice, slush, mud, dirt.
● The vehicle is towing a trailer.
● The vehicle had an accident.
● There are extreme temperature changes.
Lane departure warning The lane departure warning systemobserves the lane markings between
which the vehicle is driving via a front camera located at the top of the
windscreen. The system warns the
driver in the event of an unintendend
lane departure via visual and acoustic signals.There is no lane departure warning
when the turn lights are operated and during 20 s after turn lights have been
switched off.9 Warning
This system is a driving aid that
cannot, in any circumstances,
replace the need for vigilance on
the part of the driver.
Activation
After ignition is switched on, the lane
departure warning system is
activated. If the system is activated,
the LED in the button ½ is not
illuminated. To activate the system
when the system is deactivated,
press ½.
The system is only operable at
vehicle speeds above 60 km/h and if
lane markings are available.
When the system recognises an
unintended lane departure, the
control indicator ) flashes yellow.
Simultaneously a chime sound is
activated.
Deactivation
To deactivate the system, press andhold ½. The LED in the button is
illuminated and ½ illuminates yellow in
the instrument cluster.
At speeds below 60 km/h the system
is inoperable.
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190Driving and operatingFault
In the event of a fault, H appears
in the instrument panel, accompanied
by a display message and a warning
chime. Contact a dealer or a qualified
workshop to have the system
checked.
System limitations The system performance may notoperate properly when:
● Vehicle speed is below 60 km/h.
● Windscreen is not clean or affected by foreign objects, e.g.
stickers
● Driving on winding or hilly roads.
● During nighttime driving.
● Adverse environmental conditions like heavy rain, snow,
direct sunlight or shadows.
● The sensor in the windscreen is blocked by snow, ice, slush, mud,
dirt, windscreen damage or
affected by foreign objects, e.g.
stickers.
● The sun is shining directly into the camera lens.● Close vehicles ahead.
● Driving on banked roads.
● Driving on road edges.
● Driving on roads with poor lane markings.
● Sudden lighting changes.
The system can not operate when no
lane marking is detected.
Lane keep assist
Lane keep assist helps to avoid
crashes due to unintentional lane
departures. The front camera
observes the lane markings between
which the vehicle is driving. If the
vehicle approaches a lane marking, the steering wheel is gently turned to
position the vehicle back into the lane. The driver will then notice a turning
movement of the steering wheel. Turn steering wheel in same direction, if
system steers not sufficient. Turn
steering wheel gently into opposite
direction, if lane change is intended.
When the system steers to correct the trajectory of the vehicle, a flashes
yellow in the instrument cluster.A warning message in the Driver
Information Centre accompanied by a
warning chime alerts the driver when
immediate driver´s action is required.
Unintended lane departure is notassumed by the system when the turn
lights are operated and during 20 s
after turn lights have been switched off.
Note
The system may be switched off if it
detects lanes which are too narrow, too wide or too curved.
Following preconditions have to be
fullfilled:
● vehicle speed must be between 65 km/h and 180 km/h
● the driver must hold the steering wheel with both hands
● the change of trajectory is not accompanied by operation of theturn signals
● the Electronic Stability Control is activated and not in operation
● the vehicle is not connected to a trailer or an electric bicycle carrier
Page 198 of 273

196Driving and operating9Danger
Fuel is flammable and explosive.
No smoking. No naked flames or
sparks.
If you can smell fuel in your
vehicle, have the cause of this
remedied immediately by a
workshop.
A label with symbols at the fuel filler
flap is indicating the allowed fuel
types. In Europe the pump nozzles of the filling stations are marked with
these symbols. Refuel only the
allowed fuel type.
Caution
In case of misfuelling, do not
switch on ignition.
Fuel filler flap is located at right rear
side of vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked. Release the
fuel filler flap by pushing the flap.
Petrol and diesel refuelling To open, turn the cap slowly
anticlockwise.The fuel filler cap can be attached to the hook on the fuel filler flap.
Place the nozzle in straight position to the filler neck and press with slight
force to insert.
To refuel, switch on pump nozzle.
After the automatic cut-off, the tank can be topped up by operating the
pump nozzle a maximum of two more
times.
Caution
Wipe off any overflowing fuel
immediately.
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Driving and operating197To close, turn the fuel filler cap
clockwise until it clicks.
Close the flap and allow it to engage.
Fuel filler cap Only use genuine fuel filler caps.Diesel-engined vehicles have special
fuel filler caps.Trailer hitch
General information
Only use towing equipment that has
been approved for your vehicle. If
using non-factory fitted towing
equipment, deactivation of the hands- free tailgate operation may be
required 3 30.
Entrust retrofitting of towing
equipment to a workshop. It may be
necessary to make changes that
affect the cooling system, heat
shields or other equipment.
The bulb outage detection function for trailer brake light cannot detect a
partial bulb outage. E.g. in case of
four bulbs with a power of 5 W each,
the function only detects lamp outage
when only a single 5 W lamp remains
or none remain.
Fitting of towing equipment could
cover the opening of the towing eye. If this is the case use the coupling ball
bar for towing. Always keep the
coupling ball bar in the vehicle to have it on hand if needed.Driving characteristics and
towing tips
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.
During trailer towing do not exceed a
speed of 80 km/h. A maximum speed
of 100 km/h is only appropriate if an oscillation damper is used and the
permissible gross trailer weight does
not exceed the vehicle’s curb weight.
For trailers with low driving stability
and caravan trailers, the use of an
oscillation damper is strongly
recommended.
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 3 254.
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Driving and operating199Fitting the coupling ball bar
Disengage and fold down the socket.Remove the sealing plug from the
opening for the coupling ball bar and
stow it.
Checking the tensioning of the
coupling ball bar
● Red marking on rotary knob must
point towards green marking on
coupling ball bar.
● The gap between the rotary knob
and the coupling ball bar must be approx. 6 mm.
● Remove the cover from the lock of the rotary knob and verify
whether the rotary knob is
locked. If the rotary knob cannot be turned, it is locked.
Otherwise, the coupling ball bar must be tensioned before being inserted:
● Unlock coupling ball bar by turning key to position c.
Page 202 of 273

200Driving and operating
● Pull out rotary knob and turnclockwise as far as it will go.
Inserting the coupling ball bar
Insert the tensioned coupling ball bar
in the opening and push firmly
upwards until it audibly engages.
The rotary handle snaps back into its
original position resting against the
coupling ball bar without a gap.9 Warning
Do not touch rotary handle during
insertion.
Lock the coupling ball bar by turning
the key to position e. Remove the key
and close the protective flap.
Eye for break-away stopping cable
Attach breakaway stopping cable to
eye.
Check that the coupling ball bar is correctly installed
● Green marking on rotary knob must point towards green
marking on coupling ball bar.
● There must be no gap between the rotary handle and the
coupling ball bar.
● The coupling ball bar must be firmly engaged in the opening.
● The coupling ball bar must be locked and the key removed.9Warning
Towing a trailer is permitted only
when a coupling ball bar is fitted correctly. If the coupling ball bardoes not engage correctly, seekthe assistance of a workshop.
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Driving and operating201Dismounting the coupling ball bar
Open the protective flap and turn the
key to position c to unlock the
coupling ball bar.
Pull out rotary handle and turn
clockwise as far as it will go. Pull out coupling ball bar downwards.
Insert sealing plug in opening. Fold away socket.
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 system is working keep steering wheel as still as possible.
Trailer stability assist is a function of
the Electronic Stability Control 3 155.