
Instruments and controls83Control indicators in the roof
console or instrument panel
Overview
OTurn signal 3 83XSeat belt reminder 3 84vAirbag and belt tensioners
3 84WAirbag deactivation 3 84pCharging system 3 84ZMalfunction indicator light
3 84AService vehicle soon 3 85oService display 3 85CStop engine 3 85RBrake system 3 85uAntilock brake system (ABS)
3 86kjUpshift, downshift 3 86ìLane departure warning 3 86RElectronic Stability Program
3 86ØElectronic Stability Program off
3 86WEngine coolant temperature
3 87!Preheating 3 87YAdBlue 3 87wTyre pressure monitoring
system 3 87IEngine oil pressure 3 87YLow fuel 3 88DAutostop 3 119\Autostop inhibited 3 1199Exterior light 3 88CHigh beam 3 88íHigh beam assist 3 89>Fog light 3 89rRear fog light 3 89mCruise control 3 89UCruise control speed limiter
3 89&Tachograph 3 89yDoor open 3 89
Turn signal
O flashes green.
Flashes if a turn signal or the hazard
warning flashers are activated.
Rapid flashing: failure of a turn signal
light or associated fuse.
An audible warning can be heard
when the turn signals are on. When
towing a trailer, the pitch of the
audible warning changes.

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

122Driving and operatingfirst gear. On an uphill slope,
turn the front wheels away from
the kerb.
If the vehicle is on a downhill
slope, engage reverse gear.
Turn the front wheels towards
the kerb.
● Close the windows.
● Turn the ignition key to position
0 and remove it. Turn the
steering wheel until the
steering wheel lock is felt to
engage.
Lock the vehicle 3 21 and activate the
anti-theft locking system 3 30 and
anti-theft alarm system 3 31.
Air suspension
Operates automatically when the
vehicle is driven. The air suspension
system constantly adjusts the ride
height according to the vehicle load.
Caution
To ensure safe operation of the air
suspension system, do not exceed the maximum permissible gross
vehicle weight rating. Refer to
identification plate 3 199 or the
vehicle documents.
For further information on the air
suspension system, refer to the
operating instructions supplied.
Master switch
Caution
The air suspension system must
be switched off when the vehicle is being towed, jump‐started, raised
off the ground or transported.
Do not switch off the air
suspension system when driving.
Jump starting 3 188, Towing the
vehicle 3 190.
The master switch is located on the
door pillar.
Switch on to enable operation and
adjustment of the air suspension
system.

Driving and operating125Caution
Fuel grades other than those listedon page 3 148, 3 201 could
damage the catalytic converter or
electronic components.
Unburnt petrol will overheat and
damage the catalytic converter.
Therefore avoid excessive use of the starter, running the fuel tank
dry and starting the engine by
pushing or towing.
In the event of misfiring, uneven
engine running, a reduction in engine performance or other unusual
problems, have the cause of the fault
rectified by a workshop as soon as
possible. In an emergency, driving
can be continued for a short period,
keeping vehicle speed and engine
speed low.
If control indicator Z flashes, the
permitted emission limits may be
exceeded. Lift your foot off the
accelerator until Z stops flashing and
is steadily illuminated. Contact a
workshop immediately.
Malfunction indicator light 3 84.
AdBlue
General information The selective catalytic reduction
(BlueInjection) is a method to
substantially reduce the nitrogen
oxides in the exhaust emission. This
is achieved by injecting a Diesel
Exhaust Fluid (DEF) into the exhaust
system.
The designation of the DEF used is
AdBlue Ⓡ. It is a non-toxic, non-
flammable, colourless and odourless
fluid which consists of 32% urea and
68% water.
Notice
AdBlue Ⓡ is a registered trademark
of the Verband der
Automobilindustrie e.V. (VDA).9 Warning
Avoid contact of your eyes or skin
with AdBlue.
In case of eye or skin contact,
rinse off with water.
Caution
Avoid contact of the paintwork with AdBlue.
In case of contact, rinse off with water.
AdBlue freezes at a temperature of
approx. -11 °C. As the vehicle is
equipped with an AdBlue pre-heater,
the emissions reduction at low
temperatures is ensured. The AdBlue
pre-heater works automatically.

134Driving and operatingInterruption of power supplyThe clutch is not disengaged if there
is an interruption of the power supply
when a gear is engaged. The vehicle
cannot move.
If the vehicle battery is discharged,
start the vehicle using jump leads
3 188.
If the cause of the fault is not a
discharged vehicle battery, seek the
assistance of a workshop.
If neutral cannot be selected, the
vehicle must only be towed with the
drive wheels raised off the ground
3 190.
Towing the vehicle 3 190.Brakes
The brake system comprises two
independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when you depress the
brake pedal firmly. You need to use
considerably more force for this. The
braking distance is extended. Seek
the assistance of a workshop before
continuing your journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has
been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
Control indicator R 3 85.
Antilock brake system
Antilock brake system (ABS)
prevents the wheels from locking.ABS starts to regulate brake pressure as soon as a wheel shows a tendency to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that
the pedal is pulsating. Do not reduce
the pressure on the pedal.
Control indicator u 3 86.
Fault
If control indicators u and A
illuminate with the messages CHECK
ABS and CHECK ESP in the Driver
Information Centre (DIC), there is a fault in the ABS. The brake system
remains operational but without ABS
regulation.

150Driving and operatingGeneral information
The official fuel consumption and
specific CO 2 emission figures quoted
relate to the EU base model with
standard equipment.
Fuel consumption data and CO 2
emission data are determined
according to regulation
715/2007 692/2008 A, taking into
consideration the vehicle weight in
running order, as specified by the
regulation.
The figures must not be taken as a
guarantee for the actual fuel
consumption of a particular vehicle.
Additional equipment may result in
slightly higher results than the stated
consumption and CO 2 figures.
Furthermore, fuel consumption is
dependent on personal driving style
as well as road and traffic conditions.Trailer 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 50 mph 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 3 219.
Trailer towing Trailer loadsThe 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 metres above sea

Driving and operating151level. 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).
The permissible gross train weight
must not be exceeded. This weight is
specified on the identification plate
3 199.
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.In 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
signals.
The pitch of the audible warning will
change if a turn signal 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) 3 137.

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