Page 192 of 259

190Vehicle careCaution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Washer fluid 3 227.
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 and clutch fluid 3 227.
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 3 116.
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 s.
Page 205 of 259
Vehicle care203No.Circuit1Interior mirror / Exhaust
system / Electric power
steering / Clutch sensor / LPG /
Exterior mirror adjustment /
Inductive charging2–3Trailer Hitch4Horn5Windscreen washer pump front/
rearNo.Circuit6Windscreen washer pump front/
rear7Heated 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–No.Circuit21Anti-theft alarm system / Start
button22Rain sensor / Camera23Door module24Advanced parking assist /
Camera / Infotainment25Airbag26Top column module27Anti-theft alarm system28–29Infotainment30–31Infotainment32Power outlet front33–34Heated exterior mirrors / Door
module
Page 230 of 259

228Service and maintenanceAll of the recommended viscosity
grades are suitable for high ambient
temperatures.
Coolant and antifreeze
Use only organic acid type-long life
coolant (LLC) antifreeze approved for
the vehicle. Consult a workshop.
The system is factory filled with
coolant designed for excellent
corrosion protection and frost
protection down to approx. -37 °C.
This concentration should be
maintained all year round. The use of additional coolant additives that
intend to give additional corrosion
protection or seal against minor leaks
can cause function problems. Liability
for consequences resulting from the
use of additional coolant additives will be rejected.
Washer 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 fluid
Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified interval.
Page 254 of 259

252IndexAAccessories and vehicle modifications .......................... 185
Active emergency braking ....93, 156
Adaptive forward lighting ...........110
AdBlue .................................. 91, 139
Adjustable air vents ...................126
Advanced parking assist ............162
Airbag and belt tensioners ...........88
Airbag deactivation ................55, 88
Airbag label................................... 50 Airbag system .............................. 50
Air conditioning regular operation ................................ 128
Air conditioning system .............. 118
Air intake .................................... 127
Air vents...................................... 126
Antilock brake system ................ 146
Antilock brake system (ABS) .......90
Anti-theft alarm system ................31
Anti-theft locking system .............. 30
Appearance care ........................221
Armrest ................................... 45, 46
Ashtrays ....................................... 78 Automatic anti-dazzle ..................35
Automatic light control ...............109
Automatic locking ........................27
Automatic transmission .............142
Autostop ............................... 92, 135
Auxiliary heater ........................... 125B
Battery discharge protection ......116
Battery voltage ........................... 100 Belts.............................................. 47
BlueInjection ............................... 139
Bonnet ....................................... 187
Brake and clutch fluid .................227
Brake and clutch system .............89
Brake assist ............................... 147
Brake fluid .................................. 190
Brakes ............................... 146, 190
Breakdown.................................. 219
Bulb replacement ....................... 192
C Capacities .................................. 239
Catalytic converter .....................139
Central locking system ................23
Centre console lighting ..............115
Centre console storage ...............63
Changing tyre and wheel size ...209
Charging system .......................... 88
Child locks ................................... 28
Child restraint installation locations ................................... 59
Child restraints.............................. 56
Child restraint systems ................56
Cigarette lighter ........................... 78
Climate control ............................. 15
Climate control systems .............117
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