156Driving and operatingDriving and
operatingDriving hints ............................... 157
Control of the vehicle ...............157
Steering ................................... 157
Starting and operating ...............157
New vehicle running-in ............157
Ignition switch positions ...........157
Power button ........................... 158
Retained power off ..................160
Starting the engine ..................160
Overrun cut-off ........................ 162
Stop-start system ....................162
Parking .................................... 165
Engine exhaust .......................... 167
Exhaust filter ............................ 167
Catalytic converter ...................168
AdBlue ..................................... 169
Automatic transmission ..............171
Transmission display ...............171
Selector lever .......................... 172
Manual mode ........................... 173
Electronic driving programmes 173
Fault ........................................ 173
Interruption of power supply ....174Manual transmission ..................174
Manual transmission automa‐ ted .............................................. 175
Transmission display ...............175
Selector lever .......................... 176
Manual mode ........................... 177
Electronic driving programmes 177
Fault ........................................ 177
Brakes ........................................ 178
Antilock brake system .............178
Parking brake .......................... 179
Brake assist ............................. 181
Hill start assist ......................... 181
Ride control systems .................181
Traction Control system ..........181
Electronic Stability Control ......182
Sport mode .............................. 183
Driver assistance systems .........184
Cruise control .......................... 184
Speed limiter ........................... 186
Adaptive cruise control ............187
Forward collision alert .............195
Following distance indication ...197
Active emergency braking .......198
Parking assist .......................... 201
Side blind spot alert .................209
Rear view camera ...................210
Traffic sign assistant ................212
Lane keep assist .....................216Fuel............................................ 219
Fuel for petrol engines .............219
Fuel for diesel engines ............220
Fuel for natural gas operation . 221
Refuelling ................................ 221
Trailer hitch ................................ 224
General information .................224
Driving characteristics and towing tips .............................. 224
Trailer towing ........................... 224
Towing equipment ...................225
Trailer stability assist ...............228
200Driving and operatingAfter a sudden lane change, the
system needs a certain time to
detect the next preceding vehicle.
The complete attention of the
driver is always required while
driving. The driver shall always be ready to take action and apply the brakes and steer to avoid
collisions. The system is designed
to work with all occupants wearing their seat belts.
Intelligent Brake Assist
If the vehicle is equipped with radar
sensor Intelligent brake assist may
activate when the brake pedal is
applied quickly by providing a boost
to braking based on the speed of
approach and distance to a vehicle
ahead.
Minor brake pedal pulsations or pedal
movement during this time is normal
and the brake pedal should continue
to be applied as needed. Intelligent
brake assist will automatically
disengage only when the brake pedal is released.
9 Warning
Intelligent brake assist may
increase vehicle braking in
situations when it may not be
necessary. You could block the
flow of traffic. If this occurs, take
your foot off the brake pedal and
then apply the brakes as needed.
Deactivation
On vehicles with front camera active
emergency braking can be
deactivated by repeatedly pressing
the gap switch V to Off setting,
3 195. If deactivated a message is
displayed in the Driver Information
Centre.
On vehicles with radar sensor the
system can be disabled in the
personalisation menu in the Info-
display, 3 125.
We recommend to deactivate the system in the vehicle personalisation
in the following cases:
● when the vehicle is being towed
● before using an automatic car wash with ignition switched on
● if the windscreen has been damaged close to the camera
● if the front bumper has been damaged
System limitations In some cases, the active emergencybraking system may provide an
automatic braking in situations that
seem to be unnecessary, for instance
in parking garages, due to traffic signs
in a curve or due to vehicles in
another lane. This is normal
operation, the vehicle does not need
Driving and operating209Surface irregularities, e.g. onconstruction zones, are not detected
by the system. The driver accepts
responsibility.
Note
After production, the system
requires a calibration. For optimal parking guidance, a driving distance
of at least 10 km, including a number of bends, is required.
Side blind spot alert The Side blind spot alert system
detects and reports objects on either
side of the vehicle, within a specified
"blind spot" zone. The system
displays a visual alert in each exterior
mirror, when detecting objects that
may not be visible in the interior and
exterior mirrors.
Side blind spot alert uses some of the advanced parking assist sensors
which are located in the front and rear
bumper on both sides of the vehicle.9 Warning
Side blind spot alert does not
replace driver vision.
The system does not detect:
● vehicles outside the side blind zones which may be rapidly
approaching
● pedestrians, cyclists or animals
Before changing a lane, always
check all mirrors, look over the
shoulder and use the turn signal.
When the system detects a vehicle in the side blind zone while driving
forwards, either while passing a
vehicle or being passed, a yellow
warning symbol B will illuminate in
the relevant exterior mirror. If the
driver then activates the turn signal,
the warning symbol B starts flashing
yellow as a warning not to change
lanes.
Note
If the overtaking vehicle is at least
10 km/h faster than the vehicle being
overtaken, the warning symbol B in
the relevant exterior mirror may not
illuminate.
Side blind spot alert is active from
speeds of 10 km/h up to 140 km/h.
Driving faster than 140 km/h
deactivates the system, indicated by
low lighting warning symbols B in
both exterior mirrors. Reducing the speed again will extinguish the
warning symbols. If a vehicle is then
detected in the blind zone, the
warning symbols B will illuminate as
normal on the relevant side.
Driving and operating211Functionality
On 5-door hatchback the camera is
mounted between the number plate
lights.
On Sports Tourer the camera is
mounted under the tailgate moulding.
The area displayed by the camera is
limited. The distance of the image that
appears on the display differs from
the actual distance.
Guiding lines
Dynamic guiding lines are horizontal
lines at one metre intervals projected onto the picture to define the distance to displayed objects.Trajectory lane of the vehicle is
shown in accordance with the
steering angle.
Warning symbols
Warning symbols are indicated as
triangles 9 on the picture, which show
obstacles detected by the rear
sensors of the advanced parking
assist.
Additionally, 9 appears on the top
line of the Info-Display with the
warning to check the vehicle
surrounding.
216Driving and operatingReasons for signs being cleared:● A predefined distance was driven
or time has elapsed (differs for
each sign type)
● Vehicle drives through a turn
● If no navigation map data is available and speed drops below
52 km/h (city entry detection)
● If navigation map data is available and a city entry/exit wasdetected due to map data change
Traffic sign detection in
conjunction with navigation
system
If the vehicle is equipped with a navigation system, the currently
displayed sign can either originate
from optical sign detection or from the
map data.
If the currently displayed sign
originates from map data and the map information changes, a new sign will
be displayed. This may lead to
detection of a new sign although no
sign on the road may have been
passed.Fault
Traffic sign assistant may not operate correctly if:
● The area of the windscreen, where the front camera is
located, is not clean or affected
by foreign items, e.g. stickers.
● Traffic signs are completely or partially covered or difficult to
discern.
● There are adverse environmental
conditions, e.g. heavy rain, snow,
direct sunlight or shadows.
● Traffic signs are incorrectly mounted or damaged.
● Traffic signs do not comply with the Vienna Convention on traffic
signs.
● The navigation map data is outdated.Caution
The system is intended to help thedriver within a defined speed
range to discern certain traffic
signs. Do not ignore traffic signs
which are not displayed by the
system.
The system does not discern any other than the conventional traffic
signs that might give or end a
speed limit.
Do not let this special feature
tempt you into taking risks when
driving.
Always adapt speed to the road
conditions.
The driver assistance systems do not relieve the driver from full
responsibility for vehicle
operation.
Lane keep assist
Lane keep assist helps to avoid
crashes due to unintentional lane
departures. The front camera
observes the lane markings between
which the vehicle is driving. If the
vehicle approaches a lane marking, the steering wheel is gently turned to
position the vehicle back into the lane. Turn steering wheel in same
direction, if system steers not
Driving and operating217sufficient. Turn steering wheel gently
into opposite direction, if lane change
is intended.
When crossing a lane marking
significantly, lane keep assist starts a
visual and acoustic warning.
Unintended lane departure is
assumed
● without using turn signal
● using the turn signal in the opposite direction of the lane
departure
● without braking
● without acceleration
● without active steering.
Note
The system is switched off during
detection of ambiguous lane
markings, e.g. in construction areas.
Note
The system may be switched off if it
detects lanes which are too narrow,
too wide or too curved.Activation
The lane keep assist is activated by
pressing a. The LED in the button
illuminates to indicate that the system
is switched on.
When the control indicator a in the
instrument cluster illuminates green,
the system is ready to assist.
The system is operational at vehicle
speeds between 60 km/h and
180 km/h and if lane markings are
available.
The system gently turns the steering
wheel and the control indicator a
changes to yellow, if the vehicle
approaches a detected lane marking
without using the turn signal in that
direction.
The system alerts by flashing a
together with three chimes, from the
respective direction, if the lane is
departed significantly.
The system is only operable when a
lane marking is detected.
If the system only detects lane
markings on one side of the road, it
will only assist for this side.
Lane keep assist detects hands-free
driving. In this case a message in the
Driver Information Centre pops-up
and a chime sounds as long as lane
keep assist detects hands-free
driving.
218Driving and operatingDeactivation
The system is deactivated by
pressing a; the LED in the button
extinguishes.
The system is deactivated
automatically when a trailer is
detected.
Fault
The system performance may be
affected by:
● Windscreen not clean or affected
by foreign items, e.g. stickers
● Close vehicles ahead
● Banked roads
● Winding or hilly roads
● Road edges
● Roads with poor lane markings
● Sudden lighting changes
● Adverse environmental conditions e.g. heavy rain or
snow
● Vehicle modifications, e.g. tyres.Switch off the system if the system is
disturbed by tar marks, shadows,
road cracks, temporary or
construction lane markings, or other
road imperfections.9 Warning
Always keep your attention on the
road and maintain proper vehicle
position within the lane, otherwise
vehicle damage, injury or death
could occur.
Lane keep assist does not
continuously steer the vehicle.
The system may not keep the
vehicle in the lane or give an alert,
even if a lane marking is detected.
The steering of the lane keep
assist may not be sufficient to
avoid a lane departure.
The system may not detect hands-
off driving due to external
influences (road condition and
surface, weather etc). The driver
has full responsibility to control the
vehicle and is always required to keep the hands on the steeringwheel while driving.
Using the system while towing a
trailer or on slippery roads could
cause loss of control of the vehicle
and a crash. Switch the system off.
312Head restraint adjustment .............8
Head restraints ............................ 47
Heated mirrors ............................. 41
Heated rear window ..................... 44
Heated steering wheel .................93
Heating .................................. 55, 57
Heating and ventilation system . 146
High beam ......................... 113, 136
High beam assist ........................113
Hill start assist ........................... 181
Horn ....................................... 14, 93
I
Identification plate .....................282
Ignition switch positions .............157
Immobiliser .......................... 39, 113
Indicators .................................... 103
Info Display ................................. 121
Information displays.................... 115
Instrument cluster ......................100
Instrument panel fuse box .........250
Instrument panel illumination .....247
Instrument panel illumination control .................................... 143
Instrument panel overview ........... 10
Interior care ............................... 276
Interior lighting ............................ 143
Interior lights ...................... 143, 247
Interior mirrors .............................. 41Interruption of power supply ......174
Introduction .................................... 3
J Jump starting ............................. 271
K Key, memorised settings ..............25
Keys ............................................. 21
Keys, locks ................................... 21
L
Lane keep assist ................111, 216
Lashing eyes ............................... 82
LED headlights ...................113, 137
Lighting features .........................144
Light switch ................................ 135
Load compartment ................31, 74
Load compartment cover .............80
Load compartment fuse box ......252
Loading information .....................89
Low fuel ..................................... 113
M
Malfunction indicator light ..........110
Manual anti-dazzle ......................41
Manual mode .....................173, 177
Manual seat adjustment ...............49
Manual transmission .................. 174
Manual transmission automated 175
Manual windows ..........................42Massage....................................... 56
Maximum speed ......................... 256
Memorised settings ......................25
Midlevel display .......................... 115
Mirror adjustment ........................... 9
Misted light covers .....................142
N Natural gas ......................... 105, 221
New vehicle running-in ..............157
Number plate light .....................246
O
Object detection systems ...........201
Odometer ................................... 104 Oil, engine .......................... 279, 284
OnStar ........................................ 131
Outside temperature ....................96
Overrun cut-off ........................... 162
P Parking ................................ 19, 165
Parking assist ............................ 201
Parking brake ............................ 179
Parking lights ............................. 142
Particulate filter ........................... 167
Performance .............................. 289
Performing work ........................231
Pollen filter ................................. 155
Power button .............................. 158
Power outlets ............................... 98