Page 101 of 228

Instruments and controls
101
Brake light switch
Brake light does not come on during
braking. Have the cause of the fault
remedied immediately by
a workshop.
Engine cooling level Low fluid level in engine cooling
system. Check coolant immediately
3 157. Drain diesel fuel filter
If
there is water in the diesel fuel filter,
the message InSP4 appears in the
instrument panel. Consult
a workshop.
Lighting
Important exterior lighting lamps,
including cables and fuses, are
monitored. In trailer mode, trailer
lighting is also monitored. Trailers
with LED lighting must have an
adapter that enables lamp monitoring
as with conventional bulbs. The failed lighting will be indicated in
the information display or the
message InSP2 will appear in the
instrument panel display.
Anti-theft alarm system
System fault in anti-theft alarm
system. Have the cause of the fault
remedied by a workshop.
Tyre pressure On vehicles with tyre pressure
monitoring
system, if there is low tyre
pressure, information on which tyre to
check appears on the display.
Page 129 of 228

Driving and operating
129
Overrun cut-off
The fuel supply is automatically cut off
during overrun, i.e. when the vehicle
is driven with a gear engaged but
accelerator is released.
Parking
■ Do not park the vehicle on an easy flammable surface. The high
temperature of the exhaust system
could ignite the surface.
■ Always apply hand brake without pressing release button. Apply as
firmly as possible on downhill or
uphill slopes. Depress the foot
brake at same time to reduce
operating force.
■ Switch off the engine and ignition. Turn the steering wheel until the
steering wheel lock engages.
■ If the vehicle is on a level surface or uphill slope, engage first gear or set
the selector lever to P before
switching off the ignition. On an
uphill slope, turn the front wheels
away from the kerb. If the vehicle is on a downhill slope,
engage reverse gear or set the
selector
lever to P before switching
off the ignition. Turn the front
wheels towards the kerb.
■ Lock the vehicle and activate the anti-theft locking system and the
anti-theft alarm system. Engine exhaust
9
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. The filter
is cleaned by burning off the soot
particles at high temperature. This
process takes place automatically
under set driving conditions and may
take up to 25 minutes. Fuel
Page 154 of 228

154
Vehicle care
Vehicle care
General Information ...................154
Vehicle checks ........................... 155
Bulb replacement .......................160
Electrical system ........................167
Vehicle tools .............................. 173
Wheels and tyres .......................174
Jump starting ............................. 185
Towing ....................................... 187
Appearance care .......................189 General Information
Accessories and vehicle
modifications
We
recommend to use Genuine Parts
and Accessories and factory
approved parts specific for your
vehicle type. We cannot assess or
guarantee for other products - even if
they have a regulatory or otherwise
granted approval.
Do not make any modifications to the
electrical system, e. g. changes of
electronic control units (chip tuning).
Vehicle storage
Storage for a long period of time
Following must be done if the vehicle
should be stored for several months:
■ Wash and wax the vehicle.
■ Have the wax in the engine compartment and underbody
checked.
■ Clean and preserve rubber seals.
■ Change engine oil. ■ Drain washer fluid reservoir.
■
Check coolant anti-freeze andcorrosion protection.
■ Adjust tyre pressure to the value specified for full load.
■ Park vehicle in dry, well ventilated place. Engage first or reverse gear
or set selector lever to P. Prevent
the vehicle from rolling.
■ Do not apply hand brake.
■ Open bonnet, close all doors and lock the vehicle.
■ Disconnect the clamp from the negative terminal of the vehicle
battery. Beware that all systems are
not functional, e.g. anti-theft alarm
system.
Putting back into operation
Following must be done if the vehicle
is putting back into operation: ■ Connect the clamp to the negative terminal of the vehicle battery.
Activate the electronic of the power
windows.
■ Check tyre pressure.
■ Fill up the washer fluid reservoir.
Page 172 of 228
172
Vehicle care
Fuse box version B No. Circuit
1
Front power windows
2 -
3 Instruments
4 Heating, air conditioning
system, electronic climate
control
5 Airbags
6 –
7 –
8 –
9 –
10 –
11 Heated rear window
12 Rear window wiper
13 Parking assist
14 Heating, air conditioning system
15 – No. Circuit
16
Seat occupancy recognition,
Open&Start system
17 Rain sensor, air quality sensor,
tyre pressure monitoring
system, interior mirror
18 Instruments, switches
19 –
20 CDC
21 Heated exterior mirrors
22 –
23 Rear power windows
24 Diagnostics plug
25 –
26 Electric foldable exterior mirrors
27 Ultrasonic sensor, anti-theft
alarm system
28 –
Page 224 of 228

224
Index
A
Accessories and vehicle
modifications .......................... 154
Active head restraints on front seats .........................................
23
Adaptive Forward Lighting ........ .................................... 25, 92, 110
Additional servicing .................... 204
Adjustable air vents ...................124
Airbag and belt tensioners ...........87
Airbag system .............................. 57
Air conditioning regular operation ................................ 126
Air conditioning system .............. 119
Air intake .................................... 125
Air quality sensor ........................121
Antilock brake system ................ 140
Antilock brake system (ABS) ....... 89
Anti-theft alarm system ........ 36, 101
Anti-theft locking system .............. 36
Apply footbrake ............................ 92
Armrest ........................................ 49
Ashtrays ....................................... 82
Automatic anti-dazzle ..................40
Automatic climate control system .................................... 120
Automatic level control ..............144
Automatic light control ...............108
Automatic transmission .............131 Auxiliary devices
........................116
Auxiliary heater ........................... 124
B
Battery ....................................... 158
Battery discharge protection ......114
Battery voltage ...........................
100
Board-Info-Display .......................93
Bonnet ....................................... 155
Brake and clutch system ............. 89
Brake assist ............................... 142
Brake fluid .................................. 158
Brake light switch ....................... 101
Brakes ............................... 140, 158
Bulb replacement ....................... 160
C
Capacities .................................. 219
Cargo management system ........71
Car Pass ...................................... 27
Catalytic converter .....................130
Central locking system ................32
Centre console lighting ..............114
Changing tyre and wheel size ...178
Charging system .......................... 88
Check control ............................... 23
Child locks ................................... 35
Child restraint installation locations ................................... 63