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Vehicle care179Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Washer fluid 3 219.
Brakes In the event of minimum thickness of
the brake lining, a squealing noise
sounds during braking.
Continued driving is possible but
have the brake lining replaced as
soon as possible.
Once new brake linings are installed,
do not brake unnecessarily hard for
the first few journeys.
Brake fluid
9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes,
skin, fabrics and painted surfaces.
The brake fluid level must be betweenthe MIN and MAX marks.
If fluid level is below MIN seek the
assistance of a workshop.
Brake fluid 3 219.
Vehicle battery
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 3 108.
Anti-theft alarm system 3 31.
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.
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Vehicle care193No.Circuit7Heated steering wheel8Rear wiper9–10Central locking system11Central locking system12Instrument cluster13Climate control system, USB14OnStar15Instrument cluster, climate
control system16Brake, starter, retained power
off17Instrument cluster18Advanced parking assist19Top column module, trailer
control module20–21Anti-theft alarm system, start
buttonNo.Circuit22Rain sensor, front camera23Door module24Advanced parking assist,
camera, Infotainment25Airbag26Top column module27Anti-theft alarm system28–29Infotainment30–31Infotainment32Power outlet front33–34Heated exterior mirrors, door
moduleNo.Circuit35Instrument cluster, light switch,
advanced parking assist, trans‐
mission control module36Courtesy lights, sun visor lights,
glovebox light
Fuse box on the right side of the
instrument panel
In left-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox and
remove the cover. Remove the
bracket.
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246IndexAAccessories and vehicle modifications .......................... 174
Active emergency braking ....87, 147
AdBlue .......................... 85, 130, 230
Adjustable air vents ...................118
Advanced parking assist ............153
Airbag and belt tensioners ...........82
Airbag deactivation ................54, 82
Airbag label................................... 49 Airbag system .............................. 49
Air conditioning regular operation ................................ 119
Air conditioning system .............. 110
Air intake .................................... 119
Air vents...................................... 118
Antilock brake system ................ 137
Antilock brake system (ABS) .......84
Anti-theft alarm system ................31
Anti-theft locking system .............. 30 Appearance care ........................210
Armrest ............................. 44, 45, 62
Ashtrays ....................................... 76
Automatic anti-dazzle ..................35
Automatic crash notification (ACN) 98
Automatic light control ...............101
Automatic locking ........................28
Automatic transmission .............133
Autostop ............................... 86, 126
Auxiliary heater ........................... 117B
Battery discharge protection ......108
Belts.............................................. 46
BlueInjection ............................... 130
Bonnet ....................................... 176
Brake and clutch system .............83
Brake assist ............................... 139
Brake fluid .......................... 179, 219
Brake light................................... 185
Brakes ............................... 137, 179
Breakdown.................................. 208
Bulb replacement ....................... 182
C Capacities .................................. 230
Catalytic converter .....................130
Central locking system ................23
Centre console lighting ..............107
Centre console storage ...............62
Changing tyre and wheel size ...198
Charging system .......................... 82
Child locks ................................... 28
Child restraint installation locations ................................... 58
Child restraints.............................. 55
Child restraint systems ................55
Cigarette lighter ........................... 76
Climate control ............................. 15
Climate control systems .............109
Clock............................................. 74