
90Instruments and controls● vehicle messages 3 90
● trip computer 3 92
Some of the displayed functions differ
when the vehicle is being driven or at
a standstill. Some functions are only
available when the vehicle is being
driven.
Triple-Info-Display
Displays time, outside temperature
and date when the ignition is on.
Vehicle messages
Messages appear in the Driver
Information Centre (DIC), in
combination with control indicator
A or C.
Information messagesInformation messagesBATTERY MODE: ECONOMYESP OFFAUTO LIGHTS DEACTIVATEDOIL LEVEL CORRECT
Fault messages Displayed in combination with control
indicator A. Drive with caution and
seek the assistance of a workshop.
To remove fault message, press
button on end of wiper lever. After a
few seconds the message may
disappear automatically and A
remains illuminated. The fault will
then be stored in the on board
system.Fault messagesCHECK ESPCHECK FUEL FILTERCHECK GEARBOXCHECK AUTO LIGHTS
Warning messages
These may appear with control
indicator C or in combination with
other warning messages, control
indicators or an audible warning. Stop engine immediately and seek the
assistance of a workshop.
Warning messagesINJECTION FAULTENGINE OVERHEATINGGEARBOX OVERHEATING

Driving and operating115Driving and
operatingDriving hints ............................... 116
Driving economically ...............116
Control of the vehicle ...............116
Steering ................................... 116
Starting and operating ...............117
New vehicle running-in ............117
Ignition switch positions ...........117
Starting the engine ..................118
Idle speed control ....................118
Overrun cut-off ........................ 119
Stop-start system ....................119
Parking .................................... 121
Air suspension ......................... 122
Engine exhaust .......................... 124
Diesel particle filter ..................124
Catalytic converter ...................124
AdBlue ..................................... 125
Manual transmission ..................130
Manual transmission automa‐ ted .............................................. 130
Transmission display ...............130
Starting the engine ..................131
Selector lever .......................... 131Manual mode........................... 132
Electronic driving programmes 132
Fault ........................................ 133
Interruption of power supply ....134
Brakes ........................................ 134
Antilock brake system .............134
Parking brake .......................... 135
Brake assist ............................. 136
Hill start assist ......................... 136
Ride control systems .................136
Traction Control system ..........136
Electronic stability program .....137
Driver assistance systems .........139
Cruise control .......................... 139
Speed limiter ........................... 142
Parking assist .......................... 142
Rear view camera ...................144
Lane departure warning ..........146
Fuel ............................................ 148
Fuel for diesel engines ............148
Refuelling ................................ 148
Fuel consumption - CO 2-
Emissions .............................. 149
Trailer hitch ................................ 150
General information .................150
Driving characteristics and towing tips .............................. 150
Trailer towing ........................... 150Towing equipment ...................151
Trailer stability assist ...............151
Auxiliary features .......................152
Power take-off ......................... 152

Driving and operating117than 15 seconds, damage mayoccur to the power steering
system and there may be loss of
power steering assist.Starting and operating
New vehicle running-in
Do not brake unnecessarily hard for
the first few journeys and after new
disc brake pads have been fitted.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period fuel and
engine oil consumption may be
higher and the cleaning process of
the diesel particle filter may take
place more often. Autostop may be
inhibited to allow for charging the
vehicle battery.
Stop-start system 3 119.
Diesel particle filter 3 124.Ignition switch positions0:ignition off1:steering wheel lock released,
ignition off2:ignition on
diesel engines: preheating3:starting

124Driving and operatingWhen service mode has been
activated, the air suspension master switch must be turned off.
To exit service mode, press i again
for 5 seconds.
Fault
If a fault is detected, i will flash
intermittently. If service mode has been activated and there is a fault, h,
S and R will flash simultaneously.
Have the cause of the fault remedied
by a workshop.Engine exhaust9 Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Diesel particle filter
The diesel particle filter system filters
harmful soot particles out of the
exhaust gases. The system includes
a self-cleaning function that runs
automatically during driving without
any notification.
The filter is cleaned by periodically
burning off the soot particles at high
temperature. This process takes
place automatically under set driving
conditions. Autostop is not available
and fuel consumption may be higher
during this period. The emission of
smells and smoke during this process is normal.
Under certain driving conditions, e.g.
short distances, the system cannot
clean itself automatically.
If cleaning of the filter is required and
if previous driving conditions did not
enable automatic cleaning, it will be
indicated by illumination of control
indicator A 3 85. Seek the
assistance of a workshop
immediately.Caution
If the cleaning process is
interrupted, there is a risk of
provoking severe engine damage.
Cleaning takes place quickest at high engine speeds and loads.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.

148Driving and operatingDriver Information Centre (DIC) 3 89.Fuel
Fuel for diesel engines
Only use diesel fuel that complies
with EN 590. The fuel must have low
sulphur content (max. 10 ppm).
Equivalent standardised fuels with a
biodiesel (= FAME according to
EN14214) content of max. 7% by
volume (like DIN 51628 or equivalent
standards) may be used.
In countries outside the European
Union use Euro-Diesel fuel with a
sulphur concentration below 50 ppm.Caution
Use of fuel that does not comply to EN 590 or similar can lead to
engine powerloss, increased wear
or engine damage and may affect
your warranty.
Do not use marine diesel oils, heating
oils or entirely plant-based diesel
fuels, such as rape seed oil or bio
diesel, Aquazole and similar diesel-
water emulsions. Diesel fuels must
not be diluted with fuels for petrol
engines.
The flow and filterability of diesel fuels are temperature-dependent. When
temperatures are low, refuel with
diesel fuel with guaranteed winter
properties.
Diesel fuel filter 3 161, diesel fuel
system bleeding 3 161.
Refuelling9 Danger
Before refuelling, switch off engine
and any external heaters with
combustion chambers. Switch off
any mobile phones.
Follow the operating and safety
instructions of the filling station
when refuelling.

Vehicle care153Vehicle careGeneral Information...................154
Accessories and vehicle modifications .......................... 154
Vehicle storage ........................154
End-of-life vehicle recovery .....155
Vehicle checks ........................... 155
Performing work ......................155
Bonnet ..................................... 155
Engine oil ................................. 156
Engine coolant ......................... 157
Power steering fluid .................158
Washer fluid ............................ 159
Brakes ..................................... 159
Brake fluid ............................... 159
Vehicle battery ......................... 159
Diesel fuel filter ........................161
Diesel fuel system bleeding .....161
Wiper blade replacement ........162
Bulb replacement .......................162
Headlights ............................... 162
Adaptive forward lighting .........164
Fog lights ................................. 165
Front turn signal lights .............165
Tail lights ................................. 166
Side turn signal lights ..............167Centre high-mounted brake
light ......................................... 167
Number plate light ...................168
Interior lights ............................ 168
Instrument panel illumination ...169
Electrical system ........................170
Fuses ....................................... 170
Engine compartment fuse box . 171
Instrument panel fuse box .......171
Load compartment fuse box ....172
Vehicle tools .............................. 174
Tools ........................................ 174
Wheels and tyres .......................175
Tyres ....................................... 175
Winter tyres ............................. 176
Tyre designations ....................176
Tyre pressure .......................... 176
Tyre pressure monitoring system .................................... 177
Tread depth ............................. 179
Changing tyre and wheel size . 179 Wheel covers ........................... 180
Tyre chains .............................. 180
Tyre repair kit .......................... 180
Wheel changing .......................184
Spare wheel ............................ 185
Jump starting ............................. 188Towing....................................... 190
Towing the vehicle ...................190
Towing another vehicle ...........191
Appearance care .......................192
Exterior care ............................ 192
Interior care ............................. 193

Vehicle care161● See the Owner's Manual forfurther information.
● Explosive gas may be present in the vicinity of the battery.
Additional battery
Depending on the vehicle's auxiliary
equipment, certain models may have
an additional battery mounted under
the front seat.
Diesel fuel filter
Drain diesel fuel filter of residual
water at every engine oil change.
Place a container underneath the
filter housing. Loosen the knurled
screws on the filter cover and on the
lower part of the filter by approx. one
turn, to drain off the water.
The filter is drained as soon as diesel fuel emerges from the knurled screw
at the bottom. Retighten the two
screws.
Check diesel fuel filter at shorter
intervals if the vehicle is subjected to
extreme operating conditions.
Diesel fuel system bleedingIf the fuel tank has been run dry, it will be necessary to air vent or bleed the
diesel fuel system.
Fill the tank with fuel and proceed as
follows:
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.
If the engine cannot be started after
several attempts to bleed the diesel
fuel system, seek the assistance of a
workshop.

172Vehicle careSymbolCircuitZInfotainment system / Seat
heating / Vehicle display
screen / Audio connec‐
tions / Alarm?Power outletÌCigarette lightereInstrument panelUCentral locking0Interior lightsOTurn signals / Rear fog
lights / Body control moduleDIAGDiagnostic connectoruABS / Electronic Stability
ProgramdInterior lights / Brake lightsZBody control moduleSTOPBrake lightIBody control module /
Power windows / Heating
and ventilation system / Air
conditioningSymbolCircuitmLeft heated rear windownRight heated rear windowRWindscreen washerMElectronic immobiliserUHeated seatsFBLCornering lightlHands-free connection&TachographPTOPower take-offjHornÍPreheating / Diesel fuel filterxClimate control fandHeated exterior mirrorsTLeft-hand side lightSRight-hand side lightQPneumatic suspensionONavigation systemSymbolCircuitADPAdditional adaptations,Power windows / Body
control module
Load compartment fuse box
Combi
Located behind the trim panel on the
right-hand side of the load
compartment, beside the rear door.