
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.

Instruments and controls97Illuminates when the engine is
runningCaution
Engine lubrication may be
interrupted. This may result in
damage to the engine and / or
locking of the drive wheels.
1. Depress clutch.
2. Select neutral gear, set selector lever to N.
3. Move out of the flow of traffic as quickly as possible without
impeding other vehicles.
4. Switch off ignition.
9 Warning
When the engine is off,
considerably more force is needed
to brake and steer. During an
Autostop the brake servo unit will still be operational.
Do not remove key until vehicle is
stationary, otherwise the steeringwheel lock could engage
unexpectedly.
Keep engine turned off and let the
vehicle be towed to a workshop.
Low fuel o illuminates yellow.
Level in fuel tank is too low.
Refuelling 3 193.
Bleeding the diesel fuel system
3 207.
Autostop D illuminates or flashes green.
Illuminates green
Engine is in an Autostop.
Flashes green
Autostop is temporarily unavailable,
or Autostop mode is invoked
automatically.
Stop-start system 3 138.
Exterior light
8 illuminates green.
The exterior lights are on 3 112.
Low beam
9 illuminates green.
Illuminated when low beam is on.
High beam
C illuminates blue.
Illuminates when high beam is on,
during headlight flash 3 113.
High beam assist
f illuminates green.
The high beam assist is activated
3 114.
LED headlights
H illuminates and a warning
message is displayed in the Driver
Information Centre.
Seek the assistance of a workshop.

Instruments and controls101Digital speed page
Digital display of the instantaneous
speed.
Autostop time counter
A time counter calculates the time
spent in Autostop during a journey. It
resets to zero every time the ignition
is switched on.
Compass page
Displays the geographic direction of
driving.
Blank page
No trip / fuel information is displayed.
AdBlue Press CHECK repeatedly until the
AdBlue menu is shown.
AdBlue range
Indicates an estimate of the AdBlue
level. A message indicates whether the level is sufficient or low.
3 143.Info Display
The Info Display is located in theinstrument panel near the instrument
cluster.
Depending on the vehicle
configuration the vehicle has a
● Graphic Info Display
or
● 7'' Colour Info Display with
touchscreen functionality
or
● 8'' Colour Info Display with
touchscreen functionality
The Info Displays can indicate: ● time 3 82
● outside temperature 3 81
● date 3 82
● Infotainment system, see description in the Infotainment
manual
● indication of rear view camera 3 186
● indication of panoramic view system 3 183● indication of parking assist
instructions 3 174
● navigation, see description in the
Infotainment manual
● vehicle and system messages 3 103
● settings for vehicle personalisation 3 104
Graphic Info Display
Press X to switch on the display.
Press MENU to select main menu
page.
Press èäåé to select a menu page.
Press OK to confirm a selection.

Instruments and controls107Driver's attention warning:
Activates or deactivates the
driver drowsiness system.
Rear wiper in reverse : Activates
or deactivates automatic
switching on of the rear window
wiper when reverse gear is
engaged.
● Driving lighting
Directional headlamps : Activates
or deactivates the function.
● Comfort lighting
Guide-me-home lighting :
Activates or deactivates the
function and adjusts its duration.
Welcome lighting : Activates or
deactivates the function and
adjusts its duration.
Mood lighting : Adjusts the
brightness of the ambient
lighting.Driving functions
Press Í.
Select Driving functions .
In the corresponding submenus the
following settings can be changed:
● Park Assist : Activates advanced
park assist, a parking maneuver can be selected.
● Blind spot sensors : Activates or
deactivates side blind spot alert.
● Panoramic view system :
Activation / deactivation of the
function.
Telematics service
OnStar
OnStar is a personal connectivity and service assistant with integrated
Wi-Fi hotspot. The OnStar service is
available 24 hours a day, seven days
a week.
Notice
OnStar is not available for all
markets. For further information,
contact your workshop.
Notice
In order to be available and
operational, OnStar needs a valid
OnStar subscription, functioning
vehicle electrics, ignition on, mobile
service and GPS satellite link.
To activate the OnStar services and
set up an account, press Z and speak
with an advisor.

108Instruments and controlsDepending on the equipment of the
vehicle, the following services are
available:
● Emergency services and support
in the case of a vehicle
breakdown
● Wi-Fi hotspot
● Smartphone application
● Remote control, e.g. location of the vehicle, activation of horn and
lights, control of central locking
system
● Stolen vehicle assistance
● Vehicle diagnostics
Notice
The OnStar module of the vehicle is
deactivated after ten days without an
ignition cycle. Functions requiring a
data connection will be available
again after switching on the ignition.OnStar buttons
Privacy button
Press and hold j until a message is
heard to activate or deactivate the
transmission of the vehicle location.
Press j to answer a call or to end a
call to an advisor.
Press j to access the Wi-Fi settings.
Service button
Press Z to establish a connection to
an advisor.
SOS button
Press [ to establish a priority
emergency connection to a specially
trained emergency advisor.
Status LED
Green: The system is ready with
activated transmission of the vehicle
location.
Green flashing: The system is on a
call.
Red: A problem arose.
Off: The system is ready with
deactivated transmission of the
vehicle location or the system is in
standby mode.
Red / green flashing for a short period of time: The transmission of the
vehicle location has been
deactivated.
OnStar services
General services
If you need any information e.g.
opening hours, points of interest and
destinations or if you need any
support e.g. in the case of a vehicle

116LightingParticular LEDs, based on steeringangle and speed, are additionally
triggered to improve lighting in
curves. This function is activated at
speeds from 25 mph to 43 mph.
High beam assist This feature activates the high beam
at night when the vehicle speed is
faster than 15 mph.
The camera in the windscreen
detects the lights of oncoming or
preceding vehicles. Each LED on
right or left side can be triggered or faded out particularly according to the
traffic situation. This gives the best
light distribution without dazzling
other road users. Once activated,
high beam assist remains active and
switches high beam on and off
depending on surrounding
conditions. The latest setting of the
high beam assist will remain after the ignition is switched on again.
High beam assist includes a special
motorway mode. When driving faster
than 71 mph on motorways, the light beam becomes smaller to avoid
dazzling of oncoming traffic. When
following vehicles ahead or passing,
dazzling for these vehicles is
reduced.
Activation
Activate the high beam assist by
pressing f. The LED of the button
illuminates if the high beam assist is
activated. High beam is switched on automatically at a speed above
15 mph . High beam is switched off at
a speed below 9 mph, but high beam
assist remains active.
The green control indicator f
illuminates continuously when the
high beam assist is activated, the blue 7 illuminates when high beam is on.
Control indicator f 3 97, 7 3 97.
Pushing left steering wheel stalk once
switches on manual high beam
without high beam assist.
High beam assist switches
automatically to low beam when:
● Driving in urban areas.
● Camera detects heavy fog.
● Front or rear fog lights are switched on.
If there are no restrictions detected, the system switches back to high
beam.

Driving and operating133Driving and
operatingDriving hints ............................... 134
Control of the vehicle ...............134
Steering ................................... 134
Starting and operating ...............134
New vehicle running-in ............134
Ignition switch positions ...........134
Power button ........................... 135
Power saving mode .................136
Starting the engine ..................137
Overrun cut-off ........................ 138
Stop-start system ....................138
Parking .................................... 141
Engine exhaust .......................... 142
Exhaust filter ............................ 142
Catalytic converter ...................142
AdBlue ..................................... 143
Automatic transmission ..............146
Transmission display ...............146
Selector lever .......................... 146
Manual mode ........................... 147
Electronic driving programmes 148
Fault ........................................ 148
Interruption of power supply ....148Manual transmission ..................149
Brakes ........................................ 150
Antilock brake system .............150
Parking brake .......................... 150
Brake assist ............................. 152
Hill start assist ......................... 153
Ride control systems .................153
Electronic Stability Control and Traction Control system .........153
Selective ride control ...............154
Sport mode .............................. 156
Driver assistance systems .........156
Cruise control .......................... 156
Speed limiter ........................... 159
Adaptive cruise control ............161
Forward collision alert .............168
Active emergency braking .......169
Front pedestrian protection .....173
Parking assist .......................... 174
Advanced parking assist .........177
Side blind spot alert .................181
Panoramic view system ...........183
Rear view camera ...................186
Lane departure warning ..........187
Lane keep assist .....................188
Driver alert ............................... 190
Fuel ............................................ 192
Fuel for petrol engines .............192Fuel for diesel engines ............192
Refuelling ................................ 193
Trailer hitch ................................ 195
General information .................195
Driving characteristics and towing tips .............................. 195
Trailer towing ........................... 196
Towing equipment ...................196
Trailer stability assist ...............199

134Driving and operatingDriving hints
Control of the vehicle
Never coast with engine not
running
Many systems will not function in this situation ( e.g. brake servo unit, power
steering). Driving in this manner is a
danger to yourself and others.
All systems function during an
Autostop.
Stop-start system 3 138.
Idle boost
If charging of the vehicle battery is
required due to battery condition, the
power output of the generator must
be increased. This will be achieved by an idle boost which may be audible.
A message appears in the Driver
Information Centre.
Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in
the area of the pedals.Use only floor mats, which fit properly and are fixed by the retainers on the
driver side.
Steering If power steering assist is lost
because the engine stops or due to a system malfunction, the vehicle can
be steered but may require increased
effort.Starting and operating
New vehicle running-in Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period, fuel and engine oil consumption may be
higher.
Additionally, the cleaning process of
the exhaust filter may take place more
often.
Exhaust filter 3 142.
Autostop may be inhibited to allow
charging of the vehicle battery.
Ignition switch positions Turn key: