202Driving and operatingIndication in the Info Display
Select parallel or perpendicular
parking slot by tapping the respective icon on the display.
Select parking side by tapping the
respective icon on the display.
When a slot is detected, a visual
feedback on the Info Display and an
acoustic signal is given.
If the driver does not stop the vehicle after a parking slot is proposed, the
system starts to search for another
suitable parking slot.
Park guiding mode
The parking slot suggestion of the system is accepted when the vehicle
is stopped by the driver within ten
metres for parallel parking slots or
six metres for perpendicular parking
slots after the message to stop the car
is indicated. The system calculates
the optimal path into the parking slot.A brief vibration in the steering wheel
after engaging reverse gear indicates
that the steering is controlled by the
system. Then the vehicle with manual transmission is steered into the slot
automatically by giving the driver
detailed instructions for braking,
accelerating and gear shifting. With
automatic transmission the vehicle is
steered into the slot automatically by
giving the driver detailed instructions for accelerating and shifting forward
or reversing. The driver must keep
hands away from the steering wheel.
During park guiding mode the
manoeuvring speed is limited.
Always pay attention to the signals of
the front-rear parking assist.
Continuous signal indicates that the
distance to an obstacle is less than approx. 30 cm.
If, for any reason, the driver must take over control of the steering, hold the
steering wheel only at the outer edge. Automatic steering is cancelled in thisevent.
204Driving and operatingIf an object is detected during parkinginstructions, a message to stop the
vehicle is indicated. Removing the
object will resume the parking
manoeuvre. If the object is not
removed, the system will be
deactivated.
Basic notes on parking assist
systems9 Warning
Under certain circumstances,
various reflective surfaces on
objects or clothing as well as
external noise sources may cause the system to fail to detect
obstacles.
Caution
Performance of the system can be reduced when sensors are
covered, e.g. by ice or snow.
Performance of the parking assist
system can be reduced due to
heavy loading.
Special conditions apply if there
are taller vehicles in the vicinity
(e.g. off-road vehicles, mini vans,
vans). Object identification and correct distance indication in the
upper part of these vehicles
cannot be guaranteed.
Objects with a very small reflection
cross-section, e.g. objects of
narrow size or soft materials, may
not be detected by the system.
Parking assist systems do not
detect objects outside the
detection range.
Notice
It is possible that the sensor detects a non-existing object caused by
echo disturbance from external
acoustic noise or mechanical
misalignments (sporadic false
warnings may occur).
Make sure that the front number
plate is properly mounted (not bent
and no gaps to the bumper on the left
or right side) and the sensors are
firmly in place.
Advanced parking assist system
may not respond to changes in the
available parking space after
initiating a parking manoeuvre. The
system may recognize an entry, a
gateway, a courtyard or even a crossing as a parking slot. After
selecting reverse gear the system
will start a parking manoeuvre. Take care regarding the availability of the
suggested parking slot.
Low curbs and surface irregularities,
e.g. on construction zones, are not
detected by the system. The driver
accepts responsibility.
Notice
New vehicles require a calibration
during first use. For optimal parking
guidance, a driving distance of at
least 6 miles, including a number of
bends, is required.
System is calibrated to factory-fitted
wheels. Parking performance is
altered with other tyre or wheels
sizes.
212Driving and operating● The vehicle had a rear endaccident.
● There are extreme temperature changes.
Fault messages are displayed with a
9 on the top line of the Info Display.
Rear cross traffic alert
Additional to the rear view camera
3 210 , rear cross traffic alert warns of
cross traffic from left or right side
when driving rearwards. When cross
traffic is recognized and the rear view camera is activated, a warning
triangle with a direction arrow K
appears on the Info Display, showing
the direction of the traffic.
Furthermore, three beeps will sound
from the speaker on the respective
side.
The radar distance sensors are
located in the rear bumper.
9 Warning
The rear cross traffic alert does not
replace driver vision. Note that
objects that are outside sensors,
e.g. below the bumper or
underneath the vehicle, are not
displayed.
Pedestrians, children or animals
are not detected.
Do not reverse the vehicle by only
looking at the Info Display and
check the surrounding behind and
around the vehicle before
reversing.
Activation
Rear cross traffic alert is
automatically activated together with
the rear view camera when reverse
gear is engaged.
Detection zones
The system sensors cover a zone of
approx. 20 m at 90° to the left or right
side behind the vehicle. Rear cross
Driving and operating217System limitationsTraffic sign assistant may not operate properly when:
● Vehicle speed is faster than 125 mph.
● Driving on winding or hilly roads. ● During nighttime driving.
● The area of the windscreen, where the front camera is
located, is not clean or affected
by foreign items, e.g. stickers.
● Weather limits visibility, such as fog, rain, or snow.
● The sun is shining directly into the camera lens.
● Traffic signs are completely or partially covered or difficult to
discern.
● Traffic signs are incorrectly mounted or damaged.
● Traffic signs do not comply with the Vienna Convention on Road
Signs and Signals.
● 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 steering is not
sufficient. 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.
Additionally, the status of the lane
keep assist is indicated on the Driver
Assistance page in the Driver
Information Center 3 110.
Unintended lane departure is
assumed
● without using turn lights● using the turn lights in the opposite direction of the lane
departure
● without braking
● without acceleration
● without active steering.
218Driving and operatingNotice
The system is switched off during
detection of ambiguous lane
markings, e.g. in construction areas.
Notice
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 or in the head-up
display illuminates green, the system
is ready to assist.
The system is operational at vehicle
speeds between 37 mph and
112 mph 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 lights 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.
Indication on Driver Assistance page
If the system is active but one or both
lanes are not detected, they appear
as a line of hollow dashes, as shown
on the right side of the vehicle in the
graphic above.
Driving and operating219If the system detects a lane, it
appears as a green dashed line, as
shown on the right side of the vehicle
in the graphic above. This dashed line becomes amber if the vehicle
approaches a detected lane marking
without the turn lights in that direction
has been used.
If the system intervenes by steering,
a short amber line appears, as shown on the left side of the vehicle in the
graphic above.
Deactivation
The system is deactivated by
pressing a; the LED in the button
extinguishes.
The system is deactivated
automatically when a trailer is
detected.
System limitations
The system performance may not
operate properly when:
● vehicle speed is out of range from
37 to 112 mph
● driving on winding or hilly roads ● during nighttime driving● weather limits visibility, such as fog, rain, or snow
● the sensor in the windscreen is blocked by snow, ice, slush, mud,dirt, windscreen damage or
affected by foreign items, e.g.
stickers
● the sun is shining directly into the
camera lens
● close vehicles ahead
● banked roads
● road edges
● roads with poor lane markings
● sudden lighting changes
● 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 tokeep 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.
Driving and operating225The permissible gross train weight
must not be exceeded. This weight is
specified on the identification plate
3 279.
Vertical coupling load
The vertical coupling load is the load
exerted by the trailer on the coupling
ball. It can be varied by changing the
weight distribution when loading the
trailer.
The maximum permissible vertical
coupling load of:
● 60 kg (Grand Sport with all engines except B20DTH /
B20NFT / D20DTR)
● 75 kg (Sports Tourer, Country Tourer with all engines except
B20DTH / B20NFT / D20DTR)
● 90 kg (All bodystyles with engines B20DTH / B20NFT /
D20DTR)
is specified on the towing equipment
identification plate and in the vehicle
documents. Always aim for the
maximum load, especially in the case
of heavy trailers. The vertical coupling load should never fall below 25 kg.Rear axle load
When the trailer is coupled and the
towing vehicle fully loaded, the
permissible rear axle load (see
identification plate or vehicle
documents) may be exceeded by 80 kg
(engines B20NFT / B20DTH /
D20DTR: 90 kg), the gross vehicle
weight rating must not be exceeded.
If the permissible rear axle load is
exceeded, a maximum speed of
60 mph applies.
Towing equipmentCaution
The folding coupling ball bar
cannot be removed from the
vehicle. When driving without a
trailer, fold in the coupling ball bar.
9 Warning
Make sure that no one is in the
pivot zone of the coupling ball bar. Risk of body injury.
When releasing the stowed
coupling ball bar, make sure to
stand left of the grip.
Release stowed coupling ball bar
Pull the grip located left to the number
plate under the rear bumper fascia at an angle of approx. 45° to the ground.
Vehicle care231Caution
Do not press the bonnet into the
latch to avoid dents.
Active bonnet 3 71.
Engine oil
Check the engine oil level manually
on a regular basis to prevent damage
to the engine. Ensure that the correct specification of oil is used.
Recommended fluids and lubricants
3 277.
The maximum engine oil
consumption is 0.6 l per 600 miles.
Check with the vehicle on a level
surface. The engine must be at
operating temperature and switched
off for at least 5 minutes.
Caution
It is the owner's responsibility to
maintain the proper level of an
appropriate quality oil in the
engine.
Pull out the dipstick, wipe it clean,
reinsert fully, pull out and read the
engine oil level.
Different dipsticks are used
depending on engine variant.