Keys, doors and windows23Notice
Do not put the electronic key in the
load compartment or in front of the
Info-Display.
Replacing battery in electronic
key
Replace the battery as soon as the
system no longer operates properly or the range is reduced. The need for battery replacement is indicated by a
message in the Driver Information
Centre 3 119.
Battery replacement, see 'Radio
remote control' 3 21.
Electronic key synchronisation
The electronic key synchronises itself automatically during every starting
procedure.Fault
If the central locking cannot be
operated or the engine cannot be
started, the cause may be one of the
following:
● Fault in electronic key.
● Electronic key is out of reception range.
● The battery voltage is too low.
● Overload of the central locking system by operating at frequent
intervals; the power supply is
interrupted for a short time.
● Interference from higher-power radio waves from other sources.
To rectify the cause of the fault,
change the position of the electronic
key.
Manual unlocking 3 24.
Memorised settings
Whenever the ignition is switched off, the following settings are
automatically memorised by the
remote control unit or the electronic
key:● automatic climate control
● lighting
● Infotainment system
● central locking system
● Sport mode settings
● comfort settings
The saved settings are automatically used the next time the ignition is
switched on with the memorised key
with remote control unit 3 155 or
electronic key 3 22.
A precondition is that Personalisation
by Driver is activated in the personal
settings of the Info-Display. This must
be set for each remote control unit or
electronic key which is used.
Also memorised are the adjustments
of the driver's seat and exterior
mirrors, independent of the memory
positions 3 50.
Power seat automatically moves into the saved position when unlocking
and opening the driver's door with the
memorised remote control or
electronic key and Auto Memory
Recall in the Info-Display is activated.
Vehicle personalisation 3 120.
Vehicle care225Vehicle careGeneral Information...................226
Accessories and vehicle modifications .......................... 226
Vehicle storage ........................226
End-of-life vehicle recovery .....227
Vehicle checks ........................... 227
Performing work ......................227
Bonnet ..................................... 227
Engine oil ................................. 228
Automatic transmission fluid ....229
Engine coolant ......................... 230
Power steering fluid .................231
Washer fluid ............................ 231
Brakes ..................................... 232
Brake fluid ............................... 232
Vehicle battery ......................... 232
Diesel fuel system bleeding .....234
Wiper blade replacement ........234
Bulb replacement .......................235
Halogen headlights ..................236
Xenon headlights .....................238
Fog lights ................................. 240
Tail lights ................................. 241
Side turn signal lights ..............243
Number plate light ...................244Interior lights ............................ 245
Instrument panel illumination ...245
Electrical system ........................245
Fuses ....................................... 245
Engine compartment fuse box . 247
Instrument panel fuse box .......249
Load compartment fuse box ....250
Vehicle tools .............................. 252
Tools ........................................ 252
Wheels and tyres .......................253
Winter tyres ............................. 253
Tyre designations ....................253
Tyre pressure .......................... 253
Tyre pressure monitoring system .................................... 255
Tread depth ............................. 256
Changing tyre and wheel size . 257
Wheel covers ........................... 257
Tyre chains .............................. 258
Tyre repair kit .......................... 258
Wheel changing .......................261
Spare wheel ............................ 263
Jump starting ............................. 266
Towing ....................................... 267
Towing the vehicle ...................267
Towing another vehicle ...........269Appearance care .......................271
Exterior care ............................ 271
Interior care ............................. 273
234Vehicle careCharging the vehicle battery9Warning
On vehicles with stop-start
system, ensure that the charging potential does not exceed
14.6 volts when using a battery
charger. Otherwise the battery
might be damaged.
Jump starting 3 266.
Warning label
Meaning 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
Wiper blades on the windscreen
Lift the wiper arm and open the
retaining clip.
320IndexAAccessories and vehicle modifications .......................... 226
Active emergency braking ..........195
Active head restraints ...................46
Adaptive cruise control .......109, 183
Adaptive forward lighting ...109, 132
AdBlue ................................ 107, 164
Adjustable air vents ...................151
Airbag and belt tensioners .........104
Airbag deactivation ..............62, 104
Airbag label................................... 57 Airbag system .............................. 57
Air conditioning regular operation ................................ 153
Air conditioning system .............. 140
Air intake .................................... 152
Air vents...................................... 151
All-wheel drive ........................... 172
Antilock brake system ................ 173
Antilock brake system (ABS) .....106
Anti-theft alarm system ................34
Anti-theft locking system .............. 33 Appearance care ........................271
Armrest ................................... 52, 53
Armrest storage ........................... 70
Ashtrays ....................................... 92 Automatic anti-dazzle ..................39
Automatic climate control system .................................... 142Automatic dimming ......................38
Automatic light control ...............129
Automatic locking ........................27
Automatic transmission .............167
Automatic transmission fluid .......229
Autostop ............................. 109, 159
Auxiliary heater ........................... 151
B
Baselevel display ........................110
Battery discharge protection ......139
Battery voltage ........................... 120
Belts.............................................. 54
BlueInjection ............................... 164
Bonnet ....................................... 227
Brake and clutch fluid .................275
Brake and clutch system ...........105
Brake assist ............................... 175
Brake fluid .................................. 232
Brakes ............................... 173, 232
Breakdown.................................. 267
Bulb replacement ....................... 235
C Capacities .................................. 293
Cargo management system ........76
Car Pass ...................................... 21
Catalytic converter .....................164
Central locking system ................24
Centre console lighting ..............138
Changing tyre and wheel size ...257
324Top-tether fastening eyes ............68
Tow bar....................................... 221
Towing ................................ 221, 267
Towing another vehicle .............269
Towing equipment .....................222
Towing the vehicle .....................267
Traction Control system ............. 176 Traction Control system off......... 107
Traffic sign assistant ...........110, 208
Trailer coupling ........................... 221
Trailer stability assist .................224
Trailer towing ............................. 222
Transmission ............................... 16
Transmission display .................167
Tread depth ............................... 256
Trip odometer .............................. 99
Turn and lane-change signals ...134
Turn signal ................................. 103
Tyre chains ................................ 258
Tyre designations ......................253
Tyre pressure ............................ 253
Tyre pressure monitoring system ............................ 108, 255
Tyre pressures ........................... 294
Tyre repair kit ............................. 258
U Ultrasonic parking assist ...106, 196
Upholstery .................................. 273
Uplevel display ........................... 110Upshift........................................ 106
Using this manual ..........................3
V Valet mode ................................. 117
Variable effort steering ...............106
Vehicle battery ........................... 232
Vehicle checks............................ 227
Vehicle data ................................ 280
Vehicle data recording and privacy ..................................... 317
Vehicle detected ahead ..............109
Vehicle dimensions .................... 291
Vehicle Identification Number ....278
Vehicle jack ................................ 252
Vehicle messages .....................119
Vehicle personalisation .............120
Vehicle security ............................ 33
Vehicle specific data ......................3
Vehicle storage ........................... 226
Vehicle tools ............................... 252
Vehicle unlocking ........................... 6
Vehicle weight ........................... 288
Ventilating ..................................... 53
Ventilation ................................... 140
W
Warning chimes .........................119
Warning lights ............................... 99
Warning triangle .......................... 80
Washer and wiper systems .........13Washer fluid ............................... 231
Wheel changing .........................261
Wheel covers ............................. 257
Wheels and tyres .......................253
Windows ....................................... 39
Windscreen................................... 39
Windscreen wiper/washer ...........86
Winter tyres ............................... 253
Wiper blade replacement ..........234
X Xenon headlights .......................238