Page 247 of 329

Vehicle care245
The brake fluid level must be betweenthe MIN and MAX marks.
If fluid level is below MIN seek the
assistance of a workshop.
Brake and clutch fluid 3 286.
Vehicle battery
The vehicle battery is located in the
engine compartment.
There are connecting points for jump
starting. 3 278
The vehicle battery is maintenance-
free provided that the driving profile
allows sufficient charging of the
battery. Short-distance-driving and
frequent engine starts can discharge
the battery. Avoid the use of
unnecessary electrical consumers.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Laying up the vehicle for more than
four weeks can lead to battery
discharge. Disconnect the clamp from the negative terminal of the vehicle
battery.
Ensure the ignition is switched off
before connecting or disconnecting
the vehicle battery.
Battery discharge protection 3 148.
Disconnecting the battery
If the vehicle's battery is to be
disconnected (e.g. for maintenance
work), the alarm siren must be
deactivated as follows: Switch the
ignition on then off, then disconnect
the vehicle's battery within
15 seconds.
Replacing the vehicle battery Note
Any deviation from the instructions
given in this section may lead to
temporary deactivation or
disturbance of the stop-start system.
When the vehicle battery is being
replaced, please ensure that there
are no open ventilation holes in the
vicinity of the positive terminal. If a
ventilation hole is open in this area, it
must be closed off with a dummy cap, and the ventilation in the vicinity of the
negative terminal must be opened.
Ensure that the battery is always replaced by the same type of battery.
We recommend that you have the
vehicle battery replaced by a
workshop.
Page 290 of 329
288Service and maintenanceWasher fluid
Use only washer fluid approved for
the vehicle to prevent damage of wiper blades, paintwork, plastic and
rubber parts. Consult a workshop.
Brake and clutch fluidOver time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should therefore be replaced at the specified
interval.
AdBlue Only use AdBlue to reduce the
nitrogen oxides in the exhaust
emission 3 172.
Page 324 of 329

322IndexAAccessories and vehicle modifications .......................... 239
Active bonnet ................................ 71
Active emergency braking ..........203
Adaptive cruise control .......113, 192
AdBlue ................................ 111, 172
Adjustable air vents ...................159
Airbag and belt tensioners .........108
Airbag deactivation ..............63, 108
Airbag label................................... 58
Airbag system .............................. 58
Air conditioning regular operation ................................ 161
Air conditioning system .............. 150
Air intake .................................... 160
Air vents...................................... 159
All-wheel drive ........................... 180
Antilock brake system ................ 180
Antilock brake system (ABS) .....110
Anti-theft alarm system ................34
Anti-theft locking system .............. 34
Appearance care ........................281
Armrest ................................... 53, 55
Armrest storage ........................... 74
Ashtrays ....................................... 97 Automatic anti-dazzle ..................39
Automatic dimming ......................38
Automatic light control ...............137
Automatic locking ........................27Automatic transmission .............175
Autostop ..................................... 167
Auxiliary heater ........................... 159
B Baselevel display ........................114
Battery discharge protection ......148
Battery voltage ........................... 126
Belts.............................................. 56 BlueInjection ............................... 172
Bonnet ....................................... 241
Brake and clutch fluid .................286
Brake and clutch system ...........109
Brake assist ............................... 182
Brake fluid .................................. 244
Brakes ............................... 180, 244
Breakdown.................................. 279
Bulb replacement ....................... 247
C Capacities .................................. 303
Cargo management system ........81
Catalytic converter .....................171
Central locking system ................25
Centre console lighting ..............147
Centre console storage ...............74
Changing tyre and wheel size ...268
Charging system ........................ 109
Child locks ................................... 28
Child restraint installation locations ................................... 67
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