Page 92 of 315

90Instruments and controlsInstruments and
controlsControls ....................................... 91
Steering wheel adjustment ........91
Steering wheel controls .............91
Heated steering wheel ...............92
Horn ........................................... 92
Windscreen wiper and washer ..92
Rear window wiper and washer ...................................... 94
Outside temperature ..................95
Clock ......................................... 95
Power outlets ............................. 97
Ashtrays .................................... 98
Warning lights, gauges and indi‐ cators ........................................... 99
Instrument cluster ......................99
Speedometer ........................... 102
Odometer ................................ 103
Trip odometer .......................... 103
Tachometer ............................. 104
Fuel gauge .............................. 104
Fuel selector ............................ 104
Engine coolant temperature gauge ..................................... 105
Service display ........................ 106Control indicators ....................107
Turn lights ................................ 107
Seat belt reminder ...................107
Airbag and belt tensioners .......108
Airbag deactivation ..................108
Charging system .....................109
Malfunction indicator light ........109
Brake and clutch system .........109
Electric parking brake ..............109
Electric parking brake fault ......109
Antilock brake system (ABS) ...110
Gear shifting ............................ 110
Following distance ...................110
Lane keep assist .....................110
Electronic Stability Control off . 110
Electronic Stability Control and Traction Control system .........110
Traction Control system off .....111
Preheating ............................... 111
Exhaust filter ............................ 111
AdBlue ..................................... 111
Tyre pressure monitoring system .................................... 111
Engine oil pressure ..................111
Low fuel ................................... 112
Immobiliser .............................. 112
Exterior light ............................ 112
High beam ............................... 112
High beam assist .....................112
LED headlights ........................ 112Front fog lights......................... 113
Rear fog light ........................... 113
Cruise control .......................... 113
Adaptive cruise control ............113
Vehicle detected ahead ...........113
Speed limiter ........................... 113
Traffic sign assistant ................113
Door open ................................ 114
Displays ..................................... 114
Driver Information Centre ........114
Info Display .............................. 120
Vehicle messages ......................122
Warning chimes .......................123
Battery voltage ........................ 123
Vehicle personalisation ..............124
Telematics service .....................130
OnStar ..................................... 130
Page 97 of 315
Instruments and controls95The rear window wiper comes on
automatically when the windscreen
wiper is switched on and reverse gear
is engaged.
Activation or deactivation of this
function can be changed in the menu Settings in the Info-Display.
Vehicle personalisation 3 124.
Rear window washer
Push lever.
Washer fluid is sprayed onto the rear
window and the wiper wipes a few
times.
The rear window washer system is
deactivated when the fluid level is
low.
Washer fluid 3 233.
Outside temperature A drop in temperature is indicated
immediately and a rise in temperature
after a time delay.
Illustration shows an example.
If outside temperature drops to 3 °C,
a warning message is displayed in the Driver Information Centre.
9 Warning
The road surface may already be
icy even though the display
indicates a few degrees above 0
°C.
Clock
Date and time are shown in the
Info-Display.
Info-Display 3 120.
Page 99 of 315

Instruments and controls978'' Colour-Info-Display
Press ; and then select the
Settings icon.
Select Time and Date .
Set time
Select Set Time to enter the
respective submenu.
Select Auto Set at the bottom of the
screen. Activate either On - RDS or
Off - Manual .
If Off - Manual is selected, adjust
hours and minutes by touching n or
o .
Touch 12-24 Hr on the right side of the
screen to select a time mode.
If 12-hour mode is selected, a third
column for AM and PM setting is
displayed. Select the desired option.
Set date
Select Set Date to enter the
respective submenu.
Notice
If date information is automatically
provided, this menu item is not
available.
Select Auto Set at the bottom of the
screen. Activate either On - RDS or
Off - Manual .
If Off - Manual is selected, adjust the
date by touching n or o.
Clock display
Select Clock Display to enter the
respective submenu.
To turn off the digital clock display in
the menus, select Off.Power outlets
A 12 V power outlet is located in the
centre console. With ignition off, this
power outlet is deactivated.
Do not exceed the maximum power
consumption of 120 W.
Electrical accessories that are
connected must comply with the
electromagnetic compatibility
requirements laid down in
DIN VDE 40 839.
Do not connect any current-delivering
accessories, e.g. electrical charging
devices or batteries.
Page 172 of 315

170Driving and operatingThe vehicle must be parked on a levelsurface.
The filler neck for AdBlue is located behind the fuel filler flap, which islocated at right rear side of the
vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked.
1. Remove key from ignition switch.2. Close all doors to avoid ammonia fumes entering the interior of the
vehicle.
3. Release the fuel filler flap by pushing the flap 3 220.
4. Unscrew protective cap from the
filler neck.
5. Open AdBlue canister.
6. Mount one end of the hose on the
canister and screw the other end
on the filler neck.
7. Lift the canister until it is empty, or
until the flow from the canister has stopped. This can take up to
five minutes.
8. Place the canister on the ground to empty the hose, wait
15 seconds.
9. Unscrew the hose from the filler neck.
10. Mount the protective cap and turn
clockwise until it engages.
Notice
Dispose of AdBlue canister
according to environmental
requirements. To reuse the hose
flush it with clear water after usage.Automatic transmission
The automatic transmission permits
automatic gearshifting (automatic
mode) or manual gearshifting
(manual mode).
Manual shifting is possible in manual
mode by tapping the selector lever to + or - 3 172.
Transmission display
The mode or selected gear is shown
in the Driver Information Centre.
In automatic mode, the driving
programme is indicated by D.
Page 223 of 315

Driving and operating221
The fuel filler flap can only be opened
if the vehicle is unlocked. Release the
fuel filler flap by pushing the flap.
Petrol and Diesel refuelling To open, turn the cap slowly
anticlockwise.The fuel filler cap can be retained in
the bracket on the fuel filler flap.
To refuel, switch on pump nozzle.
After the automatic cut-off, the tank can be topped up by operating the
pump nozzle a maximum of two more
times.
Caution
Wipe off any overflowing fuel
immediately.
To close, turn the fuel filler cap
clockwise until it clicks.
Close the flap and engage.
Misfuel inhibitor9 Warning
Do not try to open the flap of the
fuel filler neck manually on
vehicles with misfuel inhibitor.
Disregarding this could lead to
trapping of the fingers.
The misfuel inhibitor ensures that the flap of the fuel filler neck can only be
opened by using the suitable fuel
nozzle or a funnel for emergency
refilling.
In case of an emergency, refill with a
canister. A funnel must be used to
open the cap of the filler neck.
The funnel may be stowed in the load
compartment or the glovebox.
Place the funnel in straight position to the filler neck and press with slight
force to insert.
After topping-up, clean funnel from
fuel remains and stow it away.
Page 227 of 315
Driving and operating225
Disengage and fold down the
connecting socket. Remove the
sealing plug from the opening for the
coupling ball bar and stow it.
Checking the tensioning of the
coupling ball bar
● Red marking on rotary knob must
point towards green marking on
coupling ball bar.
● The gap between the rotary knob
and the coupling ball bar must be approx. 6 mm.
● The key must be in position c.
Otherwise, the coupling ball bar must be tensioned before being inserted:
● Unlock coupling ball bar by turning key to position c.
● Pull out rotary knob and turn
clockwise as far as it will go.
Inserting the coupling ball bar
Page 229 of 315
Driving and operating227Open the protective flap and turn the
key to position c to unlock the
coupling ball bar.
Pull out rotary handle and turn
clockwise as far as it will go. Pull out
coupling ball bar downwards.
Insert sealing plug in opening.
Fold away connecting socket.
On Sports Tourer insert cover into
rear bumper as shown in the
illustration.
Stow the coupling ball bar in the bag
and secure by fixing the strap through the rear right lashing eye. Wrap
around twice and tighten the strap to
secure the bag.
Trailer stability assist
If the system detects snaking
movements, engine power is reduced
and the vehicle/trailer combination is selectively braked until the snaking
ceases. While system is working keep
steering wheel as still as possible.
Trailer stability assist is a function of
the Electronic Stability Control 3 181.
Page 239 of 315
Vehicle care2371. Rotate the cap anticlockwise andremove it.
2. Disengage spring clip from retainer by pulling. Withdraw the
bulb holder from the reflector
housing.
3. Detach the bulb from the bulb holder and replace the bulb.
4. Insert the bulb holder, engaging the two lugs into the reflector
housing and rotate clockwise to
secure.
5. Push spring clip back in place. 6. Fit the cap and rotate clockwise.
High beam (2)
1. Rotate the cap anticlockwise and remove it.