Page 175 of 271

Driving and operating173The guide line intervals are as
follows:3 (red):30 cm4 (yellow):70 cm5 (green):150 cmSettings
Settings, e.g. brightness, can be set via the Infotainment system. Refer to Infotainment manual for further
information.
Deactivation
The camera is deactivated after a
delay if reverse gear is not engaged.
Fault
The rear view camera may not
operate properly when:
● the surrounding is dark
● the sun or the beam of headlights
is shining directly into the camera lens
● ice, snow, mud, or anything else covers the camera lens. Clean
the lens, rinse it with water, and
wipe it with a soft cloth
● the rear doors are not closed correctly
● the vehicle had a rear-end accident
● there are extreme temperature changes
Lane departure warning The lane departure warning systemuses a front camera to observe the
lane markings between which the
vehicle is driving. The system detects
lane changes and warns the driver in
the event of an unintended lane
change via visual and acoustic
signals.
Criteria for the detection of an
unintended lane change are:
● no operation of turn lights
● no active steering
If the driver is performing these
actions, no warning will be issued.Activation
The lane departure warning system is activated by pressing ì in the roof
console. The LED in the button
extinguishes to indicate that the
system is switched on.
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174Driving and operating
When control indicator ì 3 103
illuminates in the instrument cluster,
the system is ready to operate. A
corresponding message also
appears in the Driver Information
Centre 3 106.
Control indicator ì extinguishes
when the system is not ready to warn the driver.
The system is only operable at
vehicle speeds above 60 km/h and if lane markings are available and
detected.
If the turn lights are not operated
when changing lanes, i.e. an
unintended lane change is detected,
control indicator ì flashes together
with a warning chime to alert the
driver.
Deactivation
The system is deactivated by
pressing ì; LED in the button
illuminates. A corresponding
message also appears in the Driver
Information Centre.
At speeds below 60 km/h the system
is inoperable.
Operation hints The lane departure warning systemmay not operate properly when:
● The windscreen is not clean.
● There are adverse environmental
conditions like heavy rain, snow,
direct sunlight or shadows.
The system cannot operate when no
lane marking is detected.Fault
In the event of a fault in the system, a warning message appears in the
Driver Information Centre (possibly in
combination with control indicator j)
and the LED in the button illuminates.
Seek the assistance of a workshop. Driver Information Centre 3 106.
Page 180 of 271

178Driving 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) must not be
exceeded.
Towing equipmentCaution
When operating without a trailer,
remove the coupling ball bar.
Towing equipment audible
warning
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 (TSA) is a
function of the Electronic Stability
Program (ESP) 3 162.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.
Page 182 of 271

180Vehicle careVehicle careGeneral Information...................181
Accessories and vehicle modifications .......................... 181
Vehicle storage ........................181
End-of-life vehicle recovery .....182
Vehicle checks ........................... 182
Performing work ......................182
Bonnet ..................................... 182
Engine oil ................................. 183
Engine coolant ......................... 185
Power steering fluid .................185
Washer fluid ............................ 186
Brakes ..................................... 187
Brake fluid ............................... 187
Vehicle battery ......................... 187
Diesel fuel filter ........................189
Diesel fuel system bleeding .....189
Wiper blade replacement ........190
Bulb replacement .......................191
Headlights ............................... 191
Fog lights ................................. 194
Front turn lights .......................194
Tail lights ................................. 195
Side turn lights ......................... 196Centre high-mounted brake
light ......................................... 197
Number plate light ...................198
Interior lights ............................ 198
Instrument panel illumination ...199
Electrical system ........................200
Fuses ....................................... 200
Engine compartment fuse box . 201
Instrument panel fuse box .......201
Load compartment fuse box ....202
Vehicle tools .............................. 204
Tools ........................................ 204
Wheels and tyres .......................205
Tyres ....................................... 205
Winter tyres ............................. 206
Tyre designations ....................206
Tyre pressure .......................... 206
Tyre pressure monitoring system .................................... 207
Tread depth ............................. 209
Changing tyre and wheel size . 210 Wheel covers ........................... 210
Tyre chains .............................. 210
Tyre repair kit .......................... 211
Wheel changing .......................214
Spare wheel ............................ 216
Jump starting ............................. 219Towing....................................... 221
Towing the vehicle ...................221
Towing another vehicle ...........222
Appearance care .......................223
Exterior care ............................ 223
Interior care ............................. 225
Page 192 of 271

190Vehicle careFill the tank with fuel and proceed asfollows:
1. Place a suitable container underneath the fuel filter vent
screw to collect fuel.
2. Loosen the vent screw (arrowed) by one turn.
3. Manually operate the in-line supply pump slowly and steadily
until fuel discharging from the
loosened vent screw is free of air
bubbles.
4. Retighten the vent screw.
In vehicles without an in-line supply
pump, fill the tank with fuel and
proceed as follows:Caution
Do not turn ignition key to position 3 before beginning the bleeding
procedure.
Ignition switch positions 3 138.
1. Turn ignition key to position 2 and
hold for 5 seconds.
2. Turn key back to position 1 and
wait for 3 seconds.
3. Repeat Step 1 and 2 multiple times.
4. Turn key to position 3, then return
to 0.
If the engine cannot be started after
several attempts to bleed the diesel
fuel system, seek the assistance of a
workshop.
Wiper blade replacement
Wiper blades on the windscreen If required, use the step located below
the headlights to reach the
windscreen wiper.Lift wiper arm, press retaining clip
towards wiper arm and detach wiper
blade.
Attach the wiper blade slightly angled
to the wiper arm and push until it
engages.
Lower wiper arm carefully.
Page 193 of 271
Vehicle care191Bulb replacement
Ensure the ignition is switched off
completely (the vehicle must not be in
an Autostop 3 140) and turn off the
relevant switch or close the doors.
Only hold a new bulb at the base. Do not touch the bulb glass with bare
hands.
Use only the same bulb type for
replacement.
Bulb check
After a bulb replacement, switch on
the ignition, operate and check the
lights.
Performing work 3 182.Headlights
Headlights have separate systems for
high beam 1 and low beam 2.
High beam
1. Remove headlamp protective
cover.
2. Detach wiring connector from bulb holder.
Page 195 of 271
Vehicle care193Sidelights
1. Remove protective cover.
2. Detach wiring connector from bulb holder.
3. Rotate bulb holder anti-clockwise to disengage.
4. Withdraw bulb holder from reflector housing.
5. Detach bulb from bulb holder andrenew the bulb.
6. Insert the bulb holder, engaging the two lugs in the reflectorhousing and rotate clockwise to
secure.
7. Attach wiring connector to bulb holder.
8. Install protective cover.
Cornering light
Headlights have separate systems for high beam 1 and low beam 2. The
cornering light 3 is located between
the headlights.
1. Remove protective cover.
2. Detach wiring connector from bulb holder.
3. Rotate bulb holder anti-clockwise to disengage.
4. Withdraw bulb holder from reflector housing.
Page 196 of 271
194Vehicle care
5. Detach bulb from bulb holder andrenew the bulb.
6. Insert the bulb holder, engaging the two lugs in the reflectorhousing and rotate clockwise to
secure.
7. Attach wiring connector to bulb holder.
8. Install protective cover.
Fog lights
Have the front fog light bulbs replaced by a workshop.
Front turn lights
1. Remove protective cover.
2. Detach wiring connector from bulb holder.
3. Rotate bulb holder anti-clockwise to disengage.
4. Withdraw bulb holder from reflector housing.
5. Detach bulb from bulb holder andrenew the bulb.
6. Insert the bulb holder, engaging the two lugs in the reflectorhousing and rotate clockwise to
secure.
7. Attach wiring connector to bulb holder.
8. Install protective cover.