
236Vehicle careIdle boost
If charging of the vehicle battery is
required due to battery condition, the
power output of the generator must be increased. This will be achieved by an idle boost which may be audible.
A message appears in the Driver
Information Centre.
Power outlet
The power outlets are deactivated in
the event of low vehicle battery
voltage.
Warning labelMeaning of symbols: ● No sparks, naked flames or smoking.
● Always shield eyes. Explosive gases can cause blindness or
injury.
● Keep the vehicle battery out of reach of children.
● The vehicle battery contains sulphuric acid which could cause
blindness or serious burn
injuries.
● See the Owner's Manual for further information.
● Explosive gas may be present in the vicinity of the vehicle battery.
Diesel fuel system bleeding If the tank has been run dry, the diesel
fuel system must be bled. Switch on
the ignition three times for
15 seconds at a time. Then crank the
engine for a maximum of 40 seconds. Repeat this process after
no less than 5 seconds. If the engine fails to start, seek the assistance of a
workshop.Wiper blade replacement
Windscreen
Lift the wiper arm until it stays in the
raised position. Lift retaining clip 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.

252Vehicle careNo.Circuit18Body control module19AdBlue module20Body control module21Body control module22Body control module23Electric steering wheel lock24Airbag25Diagnostic connector26Power outlet load compartment27EBCM valve28Police provision29–30–31Steering wheel controls32Ignition switch33Climate control34Central gateway moduleNo.Circuit35AUX / USB connector36Wireless charger37Rear wiper38Emergency call39Display40Parking assist41Overhead console42Infotainment SystemVehicle tools
Tools
Vehicles with spare wheel
The jack with wheel wrench, the tools,
an extension bolt for securing a
damaged wheel and the towing eye
are placed in the tool box below the
spare wheel in the load compartment.
Spare wheel 3 264.

Vehicle care253Vehicles without spare wheel
The screwdriver and the towing eye
are located in a box below the floor
cover in the load compartment.
Tyre repair kit 3 259.
Vehicles with sound system
The screwdriver and the towing eye
are located below the floor cover in
the load compartment, beside the
sound system.
Tyre repair kit 3 259.
Wheels and tyres
Tyre condition, wheel condition Drive over edges slowly and at right
angles if possible. Driving over sharp
edges can cause tyre and wheel
damage. Do not trap tyres on the kerb when parking.
Regularly check the wheels for
damage. Seek the assistance of a
workshop in the event of damage or
unusual wear.
Winter tyres
Winter tyres improve driving safety at temperatures below 7 °C and shouldtherefore be fitted on all wheels.
In accordance with country-specific
regulations, affix the speed sticker in
the driver's field of view.
All tyre sizes are permitted as winter
tyres 3 291.

270Vehicle careTowingTowing the vehicle
Wrap a cloth around the tip of a flat
screwdriver to prevent paint damage.
Insert the screwdriver in the slot at the
edge of the cap. Release the cap by
levering it out carefully.
The towing eye is stowed with the
vehicle tools 3 252.
Screw in the towing eye as far as it will
go until it stops in a horizontal
position.
Attach a tow rope – or better still a tow
rod – to the towing eye.
The towing eye must only be used for
towing and not for recovering the
vehicle.
Switch on ignition to release steering wheel lock and to permit operation of
brake lights, horn and windscreen
wiper.
Caution
Deactivate the driver assistance
systems like active emergency
braking 3 193, otherwise the
vehicle may automatically brake during towing.
Switch the selector lever to neutral.
Release the parking brake.
Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
When the engine is not running,
considerably more force is needed to
brake and steer.
To prevent the entry of exhaust gases from the towing vehicle, switch on the
air recirculation and close the
windows.
Vehicles with manual transmission
and All-wheel drive: If the vehicle is
towed with all four wheels on the
ground then there are no technical

307Child restraint systems ................64
Climate control ............................. 15
Clock............................................. 92
Collision damage repair ..............299
Control indicators........................ 104
Control of the vehicle .................151
Controls ........................................ 88
Convex shape .............................. 37
Coolant and antifreeze ...............277
Cruise control ....................109, 177
Cupholders .................................. 73
Curtain airbag system .................. 62
Curve lighting.............................. 132
D Danger, Warnings and Cautions ...4
Daytime running lights ...............132
Declaration of conformity ............295
DEF ............................................ 161
Diesel exhaust fluid ....................161
Diesel fuel system bleeding .......236
Door open .................................. 110
Doors ............................................ 29
Driver assistance systems ..........177
Driver Information Centre ...........110
Driving characteristics and towing tips .............................. 224
Driving hints ................................ 151E
Electric adjustment ......................37
Electrical system......................... 247
Electric parking brake .........106, 170
Electric parking brake fault .........106
Electronic climate control system 142
Electronic driving programmes ..166
Electronic key system ...................22
Electronic Stability Control.......... 174
Electronic Stability Control and Traction Control system ..........107
Electronic Stability Control off..... 107
Emergency call ........................... 126
End-of-life vehicle recovery .......229
Engine compartment fuse box ...248
Engine coolant ........................... 232
Engine coolant temperature ......107
Engine coolant temperature gauge ..................................... 102
Engine data ............................... 284
Engine exhaust .......................... 159
Engine identification ...................280
Engine oil ................... 231, 277, 281
Engine oil pressure ....................108
Entry lighting .............................. 137
Event data recorders ..................302
Exhaust filter ............................... 159
Exit lighting ................................ 137
Exterior care .............................. 272
Exterior light ............................... 109Exterior lighting ....................12, 128
Exterior mirrors ............................. 37
F
Fault ........................................... 167
First aid kit ................................... 84
Fixed air vents ........................... 149
Floor mats................................... 275
Folding mirrors ............................. 38
Following distance ......................107
Following distance indication ......192
Forward collision alert................. 189
Front airbag system .....................61
Front fog lights ...........109, 134, 239
Front pedestrian protection ........196
Front seats.................................... 47
Front storage ................................ 74
Fuel............................................. 220
Fuel for diesel engines ..............221
Fuel for petrol engines ...............220
Fuel gauge ................................. 102
Funnel......................................... 222
Fuses ......................................... 247
G Gauges ....................................... 100
Gear selection ........................... 164
Gear shifting ............................... 107
General information ...................224
Glovebox ..................................... 73

308HHalogen headlights ....................237
Hand brake ................................. 169
Hazard warning flashers ............133
Headlight flash ........................... 131
Headlight range adjustment ......131
Headlights................................... 128
Headlights when driving abroad 131
Head restraint adjustment .............8
Head restraints ............................ 45
Head-up display.......................... 117 Heated mirrors ............................. 39
Heated rear window ..................... 42
Heated steering wheel .................88
Heated windscreen .......................43
Heating .................................. 54, 55
High beam ......................... 109, 129
High beam assist ................109, 129
Hill start assist ........................... 172
Horn ....................................... 13, 89
I
Identification plate .....................279
Ignition switch positions .............151
Immobiliser .......................... 37, 109
Indicators .................................... 100
Inductive charging ........................94
Info Display ................................. 116
Instrument cluster ........................96
Instrument panel fuse box .........251Instrument panel illumination
control .................................... 135
Instrument panel overview ........... 10
Interactive driving system ...........175
Interior care ............................... 274
Interior lighting ............................ 135
Interior lights ...................... 136, 247
Interior mirrors .............................. 39
Interruption of power supply ......167
Introduction .................................... 3
J
Jump starting ............................. 268
K
Key, memorised settings ..............25
Keys ............................................. 20
Keys, locks ................................... 20
L
Lane change alert .......................206
Lane keep assist ................107, 217
Lashing eyes ............................... 80
LED headlights ...........109, 132, 239
Lighting features .........................137
Light switch ................................ 128
Load compartment ................29, 75
Load compartment cover .............78
Loading information .....................85
Low fuel ..................................... 108M
Malfunction indicator light ..........105
Manual anti-dazzle ......................39
Manual mode ............................. 165
Manual seat adjustment ...............48
Manual transmission .................. 168
Massage ....................................... 55
Memorised settings ......................25
Mirror adjustment ........................... 8
Misted light covers .....................135
N New vehicle running-in ..............151
Number plate light .....................247
O
Object detection systems ...........198
Odometer ................................... 101 Oil, engine .......................... 277, 281
Outside temperature ....................92
Overrun cut-off ........................... 156
P Panoramic view system ..............208
Parking ................................ 18, 158
Parking assist ...................... 39, 198
Parking brake ............................ 170
Parking lights ............................. 135
Particulate filter ........................... 159
Pedestrian detection ...................110
Performance .............................. 286