
128Climate controlTo switch on, press Y for
one second. The predetermined heating duration, e.g. 30, is
displayed. The factory setting is
30 minutes.
The heating duration can be set in
increments of ten minutes. Due to the power consumption, note the heatingduration.
● Press l four times.
● Press Y and OFF
simultaneously, Y/x flashes.
● Adjust using k or l to select the
desired heating duration.
● Press Y and OFF simultaneously
to confirm.
To switch off, press OFF.
Programming y
The system calculates the operating time of the heater depending on the
temperature inside the vehicle.
● Press k twice.
● Press Y and OFF
simultaneously, y flashes.● Adjust using k or l to select the
departure time.
● Press Y and OFF simultaneously
to confirm.
To switch on, press Y for one second ,
HTM is displayed.
Heating stops automatically after the
programmed departure time, or can
be manually switched off.
● Press k twice.
● Press OFF for one second, HTM
goes out.
Set time
If the vehicle battery is disconnected
or its voltage is too low, the time will
need to be reset.
● Press l once.
● Press Y and OFF
simultaneously, Ö flashes.
● Adjust using k or l to set the
time.
● Press Y and OFF simultaneously
to confirm.Heating level
The preferred heating level for
programmed departure times can be set to between C1 and C5.
● Press k three times.
● Press Y and OFF
simultaneously, Y flashes.
● Adjust using k or l to set the
heating level.
● Press Y and OFF simultaneously
to confirm.
To display the passenger
compartment temperature, press l
twice.

Driving and operating143Malfunction indicator light 3 97.
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 this fluid is
AdBlue ®
. It is a non-toxic, non-
flammable, colourless and odourless
fluid which consists of 32% urea and
68% water.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.
AdBlue gauge
In versions without AdBlue level
warnings in the Driver Information
Centre, an AdBlue gauge is present,
which shows the current AdBlue fluid
level remaining in the tank.
AdBlue gauge 3 91.
Level warnings
The AdBlue consumption is approx.
3.5 litres per 1000 km and depends
on the driving behaviour.
Version with level warnings in the
Driver Information Centre
If the AdBlue level falls below a
certain value, a level warning will be
displayed in the Driver Information
Centre 3 102.

Driving and operating169water 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 3 183, diesel fuel
system bleeding 3 183.
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.
9 Danger
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.
Caution
In case of misfuelling, do not
switch on ignition.
The fuel tank filler neck with bayonet
cap is located on the left front side of
the vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked and the door is opened. Open the fuel filler flap by
hand.
9 Danger
Vehicles with stop-start system:
The engine must be switched off
and the ignition key removed, to
avoid risk of engine being
restarted automatically by the
system.
Capacities 3 245.
Remove the fuel filler cap by turning
it anti-clockwise.
The fuel filler cap can be hung on the lower hook of the fuel filler flap.
For refuelling, fully insert the pump
nozzle and switch it on.

252IndexAAbsorptive Glass Mat battery .....181
Accessories and vehicle modifications .......................... 175
Adaptive forward lighting ...111, 187
AdBlue .......................... 99, 143, 222
AdBlue gauge ............................... 91
AdBlue tank ................................ 245
Adjustable air vents ...................129
AGM battery ............................... 181
Airbag and belt tensioners ...........96
Airbag deactivation ................61, 96
Airbag label................................... 57 Airbag system .............................. 57
Air conditioning regular operation ................................ 130
Air conditioning system .............. 117
Air intake .................................... 130
Air suspension ........................... 140
Air suspension system................ 215
Air vents...................................... 129
Antifreeze ................................... 178
Antilock brake system ................ 154
Antilock brake system (ABS) .......98
Anti-theft alarm system ................34
Anti-theft bolts............................. 208
Anti-theft locking system .............. 34
Anti-theft security lock ..................23
Appearance care ........................217
Armrest ........................................ 49Ashtrays ....................................... 89
Automatic light control ...............108
Automatic locking ...................24, 27
Autostop ....................... 18, 135, 136
Auxiliary heater ........................... 123
B Battery ........................................ 181
Battery discharge protection ......115
Battery, jump starting.................. 213
Belts.............................................. 53 BlueInjection ............................... 143
Bonnet ....................................... 176
Bottle holders................................ 73
Brake assist ............................... 156
Brake fluid .......................... 180, 222
Brakes ............................... 154, 180
Brake system ............................... 98
Breakdown.................................. 215
Bulb replacement ....................... 185
Bus Rear seats ................................. 50
C
Cabin bulkhead grille ....................79
Capacities .................................. 245
Cargo management system ........76
Car Pass ...................................... 21
Catalytic converter .....................142
Central locking system ................24
Centre high-mounted brake light 191

253Changing tyre and wheel size ...203
Charging system .......................... 97
Child locks ................................... 28
Child restraint installation locations ................................... 65
Child restraints.............................. 63
Child restraint systems ................63
Cigarette lighter ........................... 89
Cleaning the vehicle ...................217
Climate control ............................. 16
Climate control systems .............116
Clock ............................................ 87
Coat hooks ................................... 73
Collision damage repair ..............250
Control indicators.......................... 93
Control of the vehicle .................133
Controls ........................................ 84
Convex shape .............................. 36
Coolant ....................................... 178
Coolant and antifreeze ...............222
Coolant heater ............................ 123
Cornering light ....................111, 187
Coupling ball bar ........................172
Cruise control ....................101, 159
Cupholders .................................. 73
D
Danger, Warnings and Cautions ...4
Dashboard .................................... 10
Daytime running lights ...............110Declaration of conformity ............248
DEF ............................................ 143
Demisting and defrosting ..............16
Diesel exhaust fluid ....................143
Diesel fuel ................................... 168
Diesel fuel filter .......................... 183
Diesel fuel system bleeding .......183
Diesel particle filter ....................142
Door locks..................................... 23
Door open .................................. 101
Doors ............................................ 28
DPF (diesel particle filter) ...........142
Drink holders ................................ 73
Driver assistance systems ..........159
Driver Information Centre ...........102
Driving characteristics and towing tips .............................. 171
Driving economically................... 133
Driving hints ................................ 133
E ECO mode .................................. 133
ecoScoring.................................. 104
Electric adjustment ......................36
Electrical accessories ...................87
Electrical system......................... 194
Electronic climate control system 118
Electronic driving programmes ..152
Electronic Stability Program 99,
157, 172Electronic Stability Program off ...99
Emergency exit .......................39, 41
End-of-life vehicle recovery .......176
Engine compartment fuse box ...195
Engine coolant ........................... 178
Engine coolant temperature ........99
Engine coolant temperature gauge ....................................... 91
Engine data ............................... 227
Engine Drag Torque Control ......157
Engine exhaust .......................... 142
Engine identification ...................225
Engine oil ...........177, 222, 226, 245
Engine oil additives ....................222
Engine oil level monitor ................92
Engine oil pressure ....................100
Engine oil viscosity grades .........222
Enhanced Traction function....... ................................ 156, 157, 159
Event data recorders ..................250
Exhaust gases ............................ 142
Exit lighting ................................ 115
Exterior care .............................. 217
Exterior light ............................... 101
Exterior lighting ....................14, 108
Exterior mirrors ............................. 36
F Fault ........................................... 153
Fire extinguisher ........................... 80