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Instruments and controls89RBrake and clutch system 3 91-Operate pedal 3 91mElectric parking brake 3 91jElectric parking brake fault
3 91uAntilock brake system (ABS)
3 92RUpshift 3 92cPower steering 3 92)Lane departure warning 3 92aElectronic Stability Control off
3 92bElectronic Stability Control and
Traction Control system 3 92kTraction Control system off
3 93!Preheating 3 93%Diesel particle filter 3 93YAdBlue 3 93wTyre pressure monitoring
system 3 93IEngine oil pressure 3 93iLow fuel 3 94dImmobiliser 3 948Exterior light 3 94CHigh beam 3 94lHigh beam assist 3 94fAdaptive forward lighting 3 94>Fog light 3 95rRear fog light 3 95mCruise control 3 95AVehicle detected ahead 3 95hDoor open 3 95
Turn signal
O illuminates or flashes green.
Illuminates briefly
The parking lights are switched on.
Flashes
A turn signal or the hazard warning flashers are activated.
Rapid flashing: failure of a turn signal light or associated fuse, failure of turn
signal light on trailer.
Bulb replacement 3 196, Fuses
3 204.
Turn signals 3 121.
Seat belt reminder
Seat belt reminder on front seats X for driver's seat illuminates or
flashes red.
k for front passenger seat illuminates
or flashes red, when seat is occupied.
Illuminates
After the ignition has been switched
on until the seat belt has been
fastened.
Flashes
After having started the engine for a
maximum of 100 seconds until the
seat belt has been fastened.
Page 185 of 263

Driving and operating183Trailer hitch
General information
Only use towing equipment that has
been approved for your vehicle.
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 4 x
5 Watt bulbs, the function only detects
lamp outage when only a single
5 Watt 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.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.
For trailers with low driving stability
and caravan trailers with a permitted
gross vehicle weight of more than
1200 kg the use of a stabiliser is
strongly recommended when driving
above 80 km/h.
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 3 247.Trailer towing
Trailer loads The permissible trailer loads are
vehicle 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 metres 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 metres 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).
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188Vehicle careVehicle careGeneral Information...................189
Accessories and vehicle modifications .......................... 189
Vehicle storage ........................189
End-of-life vehicle recovery .....190
Vehicle checks ........................... 190
Performing work ......................190
Bonnet ..................................... 190
Engine oil ................................. 191
Engine coolant ......................... 192
Washer fluid ............................ 193
Brakes ..................................... 193
Brake fluid ............................... 194
Vehicle battery ......................... 194
Diesel fuel system bleeding .....195
Wiper blade replacement ........196
Bulb replacement .......................196
Halogen headlights ..................196
Adaptive forward lighting .........198
Fog lights ................................. 199
Front turn signal lights .............200
Tail lights ................................. 201
Side turn signal lights ..............202
Number plate light ...................203Interior lights ............................ 204
Instrument panel illumination ...204
Electrical system ........................204
Fuses ....................................... 204
Engine compartment fuse box . 205
Instrument panel fuse box .......207
Load compartment fuse box ....208
Vehicle tools .............................. 210
Tools ........................................ 210
Wheels and tyres .......................211
Winter tyres ............................. 211
Tyre designations ....................211
Tyre pressure monitoring
system .................................... 211
Tyre pressure .......................... 215
Tread depth ............................. 216
Changing tyre and wheel size . 216
Wheel covers ........................... 217
Tyre chains .............................. 217
Tyre repair kit .......................... 217
Wheel changing .......................220
Spare wheel ............................ 223
Jump starting ............................. 226
Towing ....................................... 228
Towing the vehicle ...................228
Towing another vehicle ...........229Appearance care .......................230
Exterior care ............................ 230
Interior care ............................. 232
Page 198 of 263
196Vehicle careWiper blade replacement
Lift the wiper arm until it stays in the
raised position, press button to
disengage the wiper blade and
remove.
Attach the wiper blade slightly angled
to the wiper arm and push until it
engages.
Lower wiper arm carefully.
Bulb replacement
Switch off the ignition and switch 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.
Replace headlight bulbs from within
the engine compartment.
Bulb check
After a bulb replacement switch on
the ignition, operate and check the
lights.Halogen headlights
Bi-Halogen Headlight (1) with one
bulb for low and high beam.
Sidelight/Daytime running light (2) .
Page 199 of 263
Vehicle care197Low/High beam (1)
1. Rotate the cap (1) anticlockwiseand remove it.
2. Rotate the bulb holderanticlockwise to disengage.
Withdraw the bulb holder from the
reflector.
3. Disengage the bulb holder from the plug connector by pressing
the retaining lug.
4. Replace the bulb and connect bulb holder with the plug
connector.
5. Insert the bulb holder, engaging the two lugs into the reflector and
rotate clockwise to secure.
6. Fit the cap and rotate clockwise.
Sidelight/Daytime running light
(2)
1. Rotate bulb socket (2) anticlockwise to disengage.
Withdraw the bulb socket from the
reflector.
Page 200 of 263
198Vehicle care
2. Remove the bulb from the socketby pulling.
3. Replace and insert new bulb into socket.
4. Insert the bulb socket into the reflector and turn clockwise.
Adaptive forward lighting9 Danger
Adaptive forward lighting system
uses Xenon headlights.
Xenon headlights work under
extremely high electrical voltage.
Do not touch. Have bulbs replaced by a workshop.
Bulbs for front turn signal and
corner lighting can be changed.
Sidelight/Daytime running lights are
designed as Light Emitting Diodes
(LEDs) and cannot be changed.
Corner lighting
1. Rotate the cap anticlockwise and remove it.
Page 201 of 263
Vehicle care1992. Rotate the bulb holderanticlockwise to disengage.
Withdraw the bulb holder from the reflector.
3. Disengage the bulb from the plug connector by pulling.
4. Replace the bulb and connect bulb holder with the plug
connector.
5. Insert the bulb holder, engaging the two lugs into the reflector and
rotate clockwise to secure.
6. Fit the cap and rotate clockwise.
Fog lights
The bulbs are accessible from the
underside of the vehicle.
1. Turn the bulb holder anticlockwise
and remove it from the reflector.
2. Disengage the bulb socket from the plug connector by pressing
the retaining lug.
3. Remove and replace the bulb socket with bulb and attach the
plug connector.
4. Insert the bulb socket into the reflector by turning clockwise and
engage.
Page 202 of 263
200Vehicle careFront turn signal lights
1. Rotate cap (1) anticlockwise andremove it.
2. The illustration shows versionwith halogen headlights.
The illustration shows version
with adaptive forward lighting
headlights.
Rotate bulb socket anticlockwise
to disengage and withdraw from
the reflector.
3. Remove the bulb from the socket by turning anticlockwise.
4. Replace and insert new bulb into socket by turning clockwise.
5. Insert the bulb socket into the reflector and turn clockwise.
6. Fit the cap and rotate clockwise.