22Keys, doors and windowsNotice
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 3 104.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
To replace:
1. Press button at the back of the electronic key unit and extract thekey blade from the housing.
2. Insert flat screwdriver or the key blade at the side of the housing
and separate the back cover from the electronic unit by turning the
screwdriver or key blade.
3. Remove and replace battery. Use
CR 2032 or equivalent battery.
Pay attention to the installation
position.
4. Install back cover of the electronic
unit and insert key element.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Electronic key synchronisation
The electronic key synchronises itself automatically during every starting
procedure.
Instruments and controls105● driver assistance systems
● cruise control
● speed limiter
● forward collision alert
● collision imminent braking system
● parking assist systems
● lighting, bulb replacement
● LED headlights
● wiper/washer system
● doors, windows
● side blind spot alert
● traffic sign assistant
● lane keep assist
● load compartment, tailgate
● radio remote control
● electronic key system
● keyless starting
● seat belts
● airbag systems
● engine and transmission
● tyre pressure
● diesel particle filter● vehicle battery status
● stop-start system
Messages in the
Colour-Info-Display
Some important messages may
appear additionally in the
Colour-Info-Display. Press the
multifunction knob to confirm a
message. Some messages only pop- up for a few seconds.
Warning chimes
When starting the engine or whilst driving
Only one warning chime will sound at
a time.
The warning chime regarding not
fastened seat belts has priority over
any other warning chime.
● If seat belt is not fastened.
● If a door or the tailgate is not fully
closed when starting off.
● If a certain speed is exceeded with parking brake applied.● If approaching a vehicle aheadtoo closely.
● If a programmed speed or speed
limit is exceeded.
● If a warning message appears in the Driver Information Centre.
● If the electronic key is not in the passenger compartment.
● If the parking assist detects an object.
● If an unintended lane change occurs.
● If the diesel particle filter has reached the maximum filling
level.
When the vehicle is parked and/or the driver's door is opened
● With exterior lights on.
During an Autostop ● If the driver's door is opened.
● If any condition for an autostart is
not fulfilled.
194Vehicle careVehicle careGeneral Information...................194
Accessories and vehicle modifications .......................... 194
Vehicle storage ........................195
End-of-life vehicle recovery .....195
Vehicle checks ........................... 196
Performing work ......................196
Bonnet ..................................... 196
Engine oil ................................. 197
Engine coolant ......................... 198
Washer fluid ............................ 199
Brakes ..................................... 199
Brake fluid ............................... 199
Vehicle battery ......................... 200
Diesel fuel system bleeding .....201
Wiper blade replacement ........202
Bulb replacement .......................202
Halogen headlights ..................202
Fog lights ................................. 204
Tail lights ................................. 205
Side turn signal lights ..............208
Number plate light ...................209
Interior lights ............................ 210
Instrument panel illumination ...210Electrical system ........................210
Fuses ....................................... 210
Engine compartment fuse box . 211
Instrument panel fuse box .......213
Load compartment fuse box ....215
Vehicle tools .............................. 217
Tools ........................................ 217
Wheels and tyres .......................217
Winter tyres ............................. 217
Tyre designations ....................218
Tyre pressure .......................... 218
Tyre pressure monitoring system .................................... 219
Tread depth ............................. 223
Changing tyre and wheel size . 224 Wheel covers ........................... 224
Tyre chains .............................. 224
Tyre repair kit .......................... 224
Wheel changing .......................227
Spare wheel ............................ 230
Jump starting ............................. 232
Towing ....................................... 234
Towing the vehicle ...................234
Towing another vehicle ...........235
Appearance care .......................236
Exterior care ............................ 236
Interior care ............................. 237General Information
Accessories and vehiclemodifications
We recommend the use of genuine
parts and accessories and factory
approved parts specific for your
vehicle type. We cannot assess or guarantee reliability of 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).Caution
When transporting the vehicle on
a train or on a recovery vehicle, the
mud flaps might be damaged.
260IndexAAccessories and vehicle modifications .......................... 194
Active emergency braking ..........169
Adjustable air vents ...................136
Airbag and belt tensioners ...........92
Airbag deactivation ................56, 92
Airbag label................................... 52 Airbag system .............................. 52
Air conditioning regular operation ................................ 137
Air conditioning system .............. 129
Air intake .................................... 137
Air vents...................................... 136
Antilock brake system ................ 156
Antilock brake system (ABS) .......94
Anti-theft alarm system ................30
Anti-theft locking system .............. 30
Appearance care ........................236
Armrest ................................... 47, 49
Armrest storage ........................... 66
Ashtrays ....................................... 83
Automatic anti-dazzle ..................35
Automatic light control ...............118
Automatic locking ........................27
Automatic transmission .............150
Auxiliary heater ........................... 136B
Battery discharge protection ......127
Battery voltage ........................... 106
Belts.............................................. 49
Bonnet ....................................... 196
Brake and clutch fluid .................240
Brake and clutch system .............93
Brake assist ............................... 159
Brake fluid .................................. 199
Brakes ............................... 156, 199
Breakdown.................................. 234
Bulb replacement ....................... 202
C Capacities .................................. 252
Catalytic converter .....................149
Central locking system ................23
Centre console lighting ..............126
Changing tyre and wheel size ...224
Charging system .......................... 92
Child locks ................................... 28
Child restraint installation locations ................................... 61
Child restraints.............................. 58
Child restraint systems ................58
Climate control ............................. 15
Climate control systems .............128
Clock............................................. 79
Collision damage repair ..............255
Control indicators.......................... 91
264UUltrasonic parking assist............. 170
Upholstery .................................. 237
Using this manual ..........................3
V Valet mode ................................. 102
Vehicle battery ........................... 200
Vehicle checks............................ 196
Vehicle data ................................ 244
Vehicle data recording and privacy ..................................... 257
Vehicle detected ahead ................96
Vehicle dimensions .................... 251
Vehicle Identification Number ....242
Vehicle jack ................................ 217
Vehicle messages .....................104
Vehicle personalisation .............106
Vehicle security ............................ 30
Vehicle specific data ......................3
Vehicle storage ........................... 195
Vehicle tools ............................... 217
Vehicle unlocking ........................... 6
Vehicle weight ........................... 250
Ventilating ..................................... 48
Ventilation ................................... 128
W
Warning chimes .........................105
Warning lights ............................... 87
Warning triangle .......................... 71Washer and wiper systems .........13
Washer fluid ............................... 199
Wheel changing .........................227
Wheel covers ............................. 224
Wheels and tyres .......................217
Windows ....................................... 35
Windscreen................................... 35
Windscreen wiper/washer ...........76
Winter tyres ............................... 217
Wiper blade replacement ..........202