Page 52 of 275
50Seats, restraintsRear seats
Armrest
Fold armrest down. The armrest
contains cupholders.
Heating
Adjust seat heating by turning thumb
wheel ß for the respective rear outer
seat to the desired setting.
Prolonged use of the highest setting
for people with sensitive skin is not
recommended.
Seat heating is operational when engine is running and during an
Autostop.
Seat belts
The seat belts are locked during
heavy acceleration or deceleration of
the vehicle, holding the occupants in
the seat position. Therefore the risk of injury is considerably reduced.
9 Warning
Fasten seat belt before each trip.
In the event of an accident, people
not wearing seat belts endanger their fellow occupants and
themselves.
Page 79 of 275

Instruments and controls77Instruments and
controlsControls ....................................... 78
Steering wheel adjustment ........78
Steering wheel controls .............78
Heated steering wheel ...............78
Horn ........................................... 79
Windscreen wiper and washer ..79
Rear window wiper and washer ...................................... 81
Outside temperature ..................81
Clock ......................................... 82
Power outlets ............................. 83
Inductive charging .....................85
Cigarette lighter ......................... 85
Ashtrays .................................... 86
Warning lights, gauges and indi‐ cators ........................................... 86
Instrument cluster ......................86
Speedometer ............................. 89
Odometer .................................. 89
Trip odometer ............................ 89
Tachometer ............................... 89
Fuel gauge ................................ 90
Engine coolant temperature gauge ....................................... 90Engine oil level monitor.............90
Service display .......................... 91
Control indicators ......................91
Turn lights .................................. 92
Seat belt reminder .....................92
Airbag and belt tensioners .........92
Airbag deactivation ....................93
Charging system .......................93
Malfunction indicator light ..........93
Service vehicle soon .................93
Stop engine ............................... 94
System check ............................ 94
Brake and clutch system ...........94
Electric parking brake ................94
Electric parking brake fault ........94
Antilock brake system (ABS) .....95
Gear shifting .............................. 95
Lane departure warning ............95
Lane keep assist .......................95
Electronic Stability Control and Traction Control system ...........95
Engine coolant temperature ......95
Preheating ................................. 96
Exhaust filter .............................. 96
AdBlue ....................................... 96
Deflation detection system ........96
Engine oil pressure ....................96
Low fuel ..................................... 97
Autostop .................................... 97
Exterior light .............................. 97Low beam.................................. 97
High beam ................................. 97
High beam assist .......................97
LED headlights .......................... 97
Front fog lights ........................... 98
Rear fog light ............................. 98
Rain sensor ............................... 98
Cruise control ............................ 98
Adaptive cruise control ..............98
Vehicle detected ahead .............98
Side blind spot alert ...................98
Active emergency braking .........98
Speed limiter ............................. 99
Door open .................................. 99
Displays ....................................... 99
Driver Information Centre ..........99
Info Display .............................. 101
Vehicle messages ......................103
Warning chimes .......................103
Battery voltage ........................ 103
Vehicle personalisation ..............104
Telematics service .....................107
OnStar ..................................... 107
Page 80 of 275
78Instruments and controlsControlsSteering wheel adjustment
Unlock lever, adjust steering wheel,
then engage lever and ensure it is
fully locked.
Do not adjust steering wheel unless
vehicle is stationary and steering
wheel lock has been released.
Steering wheel controls
Cruise control and speed limiter are
operated via the controls on the left
side of the steering wheel.
Additionally, adaptive cruise control can be set by using the controls on the
left side of the steering wheel.
Infotainment system can be operated
via the controls on the right side of the
steering wheel.
Driver assistance systems 3 156.
Further information is available in the
Infotainment manual.
Heated steering wheel
Activate heating by pressing *.
Activation is indicated by the LED in
the button.
Page 81 of 275
Instruments and controls79The recommended grip areas of the
steering wheel are heated quicker
and to a higher temperature than the
other areas.
Heating is operational when the
engine is running and during an
Autostop.
Stop-start system 3 138.
Horn
Press j.
Windscreen wiper and
washer
Windscreen wiper with adjustable
wiper intervalHI:fastLO:slowINT:interval wipingOFF:off
For a single wipe when the
windscreen wiper is off, press the
lever down to position 1x.
Do not use if the windscreen is frozen.
Switch off in car washes.
To activate interval wiping mode the
next time ignition is switched on,
press the lever downwards to position
OFF and back to INT.
Adjustable wiper interval
Wiper lever in position INT.
Turn the adjuster wheel to adjust the
desired wipe interval.
Page 90 of 275
88Instruments and controlsOverviewOTurn lights 3 92XSeat belt reminder 3 92vAirbag and belt tensioners
3 92VAirbag deactivation 3 93pCharging system 3 93ZMalfunction indicator light
3 93HService vehicle soon 3 93STOPStop engine 3 94JSystem check 3 94RBrake and clutch system
3 94m ,
oElectric parking brake
3 94EElectric parking brake fault
3 94uAntilock brake system (ABS)
3 95RGear shifting 3 95)Lane departure warning
3 95LLane keep assist 3 95bElectronic Stability Control
and Traction Control system
3 95W oEngine coolant temperature
high 3 95!Preheating 3 96%Exhaust filter 3 96YAdBlue 3 96wDeflation detection system
3 96IEngine oil pressure 3 96Y oLow fuel 3 97DAutostop 3 978Exterior light 3 979Low beam 3 97CHigh beam 3 97fHigh beam assist 3 97>Front fog lights 3 98øRear fog light 3 98
3 98ßSpeed limiter 3 99hDoor open 3 99
Page 98 of 275

96Instruments and controlsIlluminates when the engine is
running
Stop, switch off engine.Caution
Coolant temperature too high.
Check coolant level immediately
3 204.
If there is sufficient coolant, consult a workshop.
Preheating
! illuminates yellow.
Preheating of diesel engine is
activated. Only activates when
outside temperature is low. Start the
engine when control indicator
extinguishes.
Starting the engine 3 137.
Exhaust filter % or H illuminates yellow.
The exhaust filter requires cleaning.
Continue driving until the control
indicator extinguishes.
Illuminates temporarily Start of saturation of the exhaust filter.
Start cleaning process as soon as
possible by driving at a vehicle speed
of at least 40 mph.
Illuminates constantlyIndication of a low additive level. Seek
the assistance of a workshop.
Exhaust filter 3 142.
AdBlue
Y flashes or illuminates yellow.
Illuminates yellow The remaining driving range is
between 370 mph and 1500 mph.
Flashes yellow
The remaining driving range is
between 0 and 370 mph.AdBlue level is low. Refill AdBlue
soon to avoid prevention of the
engine start. Up to 10 l of AdBlue can
be added.
AdBlue 3 143.
Deflation detection system
w illuminates or flashes yellow.
Illuminates
Tyre pressure loss in one or more
wheels. Stop immediately and check
tyre pressure.
Flashes
Fault in system. Consult a workshop.
Deflation detection system 3 221.
Engine oil pressure
I illuminates red.
Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Page 124 of 275

122Climate controlClimate controlClimate control systems.............122
Heating and ventilation system 122
Air conditioning system ...........123
Electronic climate control system .................................... 126
Auxiliary heater ........................130
Air vents ..................................... 130
Adjustable air vents .................130
Fixed air vents ......................... 131
Glovebox cooler ......................131
Maintenance .............................. 131
Air intake ................................. 131
Air conditioning regular
operation ................................ 132
Service .................................... 132Climate control systems
Heating and ventilation system
Controls for: ● temperature £
● air distribution l, M and K
● fan speed Z
● demisting and defrosting à
● heated rear window and exterior mirrors b
● heated seats ß
Heated rear window b 3 40.
Heated exterior mirrors b 3 37.
Heated seats ß 3 49.
Temperature
Adjust the temperature by turning £ to the desired temperature.red area:warmerblue area:colder
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Air distribution
l:to windscreen and front door
windowsM:to head area via adjustable air
ventsK:to foot well and windscreen
All combinations are possible.
Fan speed
Adjust the air flow by turning Z to the
desired speed.
clockwise:increaseanticklockwise:decrease
Page 126 of 275

124Climate controlHeating will not be fully effective until
the engine has reached normal
operating temperature.
Air distributionl:to windscreen and front door
windowsM:to head area via adjustable air
ventsK:to foot well and windscreen
All combinations are possible.
Fan speed
Adjust the air flow by turning Z to the
desired speed.
clockwise:increaseanticlockwise:decreaseCooling A/C
Press A/C to switch on cooling. The
LED in the button illuminates to
indicate activation. Cooling is only
functional when the engine is running and fan is switched on.
Press A/C again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above
the freezing point. Therefore,
condensation may form and drip from
under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons.
Activated cooling may inhibit
Autostops.
Stop-start system 3 138.
Air recirculation system
Press 4 to activate air recirculation
mode. The LED in the button
illuminates to indicate activation.
Press 4 again to deactivate air
recirculation mode.
9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling the air