Page 176 of 271

174Driving and operatingWhen the vehicle is started, both
exterior mirror displays will briefly illuminate to indicate that the system
is operating.
The system can be activated or
deactivated in the Info-Display,
vehicle personalisation 3 107.
Deactivation is indicated by a
message in the Driver Information
Centre.
Detection zones
The detection zones start at the rear
bumper and extend approx.
three metres rearwards and to the
sides. The height of the zone is
approx. between 0.5 metres and
two metres off the ground.
The system is deactivated if the
vehicle is towing a trailer.
Side blind spot alert is designed to ignore stationary objects, e.g.
guardrails, posts, curbs, walls and
beams. Parked vehicles or oncoming
vehicles are not detected.Fault
Occasional missed alerts can occur under normal circumstances and will
increase in wet conditions.
Side blind spot alert does not operate when the left or right corners of the
rear bumper are covered with mud,
dirt, snow, ice, slush, or in heavy
rainstorms. Cleaning instructions
3 234.
In the event of a fault in the system or if the system does not work due to
temporary conditions, a message is
displayed in the Driver Information
Centre. Seek the assistance of a
workshop.
Rear view camera
The rear view camera assists the
driver when reversing by displaying a view of the area behind the vehicle.
The view of the camera is displayed
in the Colour-Info-Display.9 Warning
The rear view camera does not
replace driver vision. Note that
objects that are outside the
camera's field of view and the
advanced parking assist sensors,
e.g. below the bumper or
underneath the vehicle, are not
displayed.
Do not reverse the vehicle by only looking at the Info-Display and
check the surrounding area
behind and around the vehicle
before reversing.
Activation
Rear view camera is automatically
activated when reverse gear is
engaged.
Page 177 of 271

Driving and operating175Functionality
The camera is mounted between the
number plate lights and has a viewing angle of 130°.
The area displayed by the camera is
limited. The distance of the image that
appears on the display differs from
the actual distance.
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.
DeactivationThe camera is deactivated when a
certain forward speed is exceeded or
if reverse gear is not engaged for
approx. ten seconds.
Rear view camera can be manually deactivated in the vehicle
personalisation menu in the
Info-Display. Vehicle personalisation
3 107.Deactivation of guiding lines and
warning symbols
Activation or deactivation of the visual
guiding lines and the warning
symbols can be changed by touch
buttons in the lower zone of the
display.
Fault
Fault messages are displayed with a
9 on the top line of the Info-Display.
The rear view camera may not
operate properly when:
● The surrounding is dark.
● The sun or the beam of headlights is shining directly into
the camera lens.
● Ice, snow, mud, or anything else covers the camera lens. Clean
the lens, rinse it with water, and
wipe it with a soft cloth.
● The vehicle is towing a trailer.
● The vehicle had a rear end accident.
● There are extreme temperature changes.
Page 178 of 271

176Driving and operatingTraffic sign assistant
Functionality The traffic sign assistant system
detects designated traffic signs via a
front camera and displays them in the
Driver Information Centre.
Traffic signs, which will be detected,
are:
Limit and no passing signs ● speed limit
● no passing
● end of speed limit
● end of no passingRoad signs
Beginning and end of:
● city regions (country-specific)● motorways
● A-roads
● play streetsAdd-on signs ● additional hints to traffic signs
● restriction of trailer towing
● tractor constraints
● wet warning
● ice warning
● direction arrows
Speed limit signs and no passing
signs are displayed in the Driver
Information Centre until the next
speed limit sign or end of speed limit is detected or up to a defined sign
timeout.Indication of multiple signs on the
display is possible.
An exclamation mark in a frame
indicates that there is an additional
sign detected which cannot be clearly
identified by the system.
The system operates without loss of
performance up to a speed of
200 km/h depending on the lighting
conditions. At night the system is
active up to a speed of 160 km/h.
As soon as vehicle speed becomes
slower than 55 km/h, the display will
be reset and the content of the traffic
sign page will be cleared, e.g. when
entering a city zone. The next
recognized speed indication will be
displayed.
Page 179 of 271

Driving and operating177Display indicationInformation about the currently valid
traffic signs is available on the
designated traffic sign assistant page in the Driver Information Centre.
Additionally, the currently valid speed
limit is displayed permanently in the
lower line of the Driver Information
Centre. In case a speed limit with add-
on is available, a + symbol is
displayed in this area.
Choose ? via MENU and select
traffic sign assistant page with the adjuster wheel on the turn signal lever
3 98.
When another page on the Driver
Information Centre menu was
selected and then traffic sign
assistant page is chosen again, the
last recognised traffic sign will be
displayed.
Alert function
The alert function can be activated or
deactivated in the setting menu of the
traffic sign assistant page.
Once activated and when the traffic
sign detection page is currently not
displayed, newly detected speed limit
and no passing signs are displayed
as pop-up alerts in the Driver
Information Centre.
When traffic sign assistant page is
displayed, press SET/CLR on the turn
signal lever.
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178Driving and operatingSelect Alerts ON or Alerts OFF by
turning the adjuster wheel and press
SET/CLR .
Pop-up alert is displayed for approx.
eight seconds in the Driver
Information Centre.
System reset The content of the traffic sign memory
can be cleared in the setting menu of
the traffic sign assistant page by
selecting Reset and confirm by
pressing SET/CLR on the turn signal
lever.
Alternatively, SET/CLR can be
pressed for three seconds to clear the
content of the page.
Upon successful reset, a chime will
sound and the following “Default
Sign” is indicated until the next traffic
sign is detected.In some cases, traffic sign assistant is
cleared up automatically by the
system.
Clearing of traffic signs
There are different scenarios that
lead to clearing the currently
displayed traffic signs. After clearing,
the “Default Sign” is displayed in the
Driver Information Centre.
Reasons for signs being cleared: ● A predefined distance was driven
or time has elapsed (differs for
each sign type)
● Vehicle drives through a turn
● The speed becomes slower than 52 km/h (city entry detection)
Fault
The traffic sign assistant system 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 (Wiener Übereinkommen
über Straßenverkehrszeichen).Caution
The system is intended to help the driver 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.
Page 214 of 271
212Vehicle careNo.Circuit18Air conditioning system19Sunroof20Parking assist/Rain sensor/
Front camera21Brake switch22Audio system23Display24–25Auxiliary jack26Instrument panel27–28–29–30–31Horn32–33Heated steering wheelNo.Circuit34–35Tyre repair kit36–37Rear wiper38Cigarette lighter39Power windows/Sunroof/Auto‐
matic transmission display40–Vehicle tools
Tools
Vehicles without spare wheel
The tools are located together with
the towing eye in the load
compartment below the floor cover.
Page 217 of 271

Vehicle care215For the tyres approved for your
vehicle, refer to the EEC Certificate of
Conformity provided with your vehicle
or other national registration
documents.
The driver is responsible for correct
adjustment of tyre pressure.9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to tread separation and even to tyre
blow-out at high speeds.
9 Warning
For specific tyres the
recommended tyre pressure as
shown in the tyre pressure table may exceed the maximum tyre
pressure as indicated on the tyre.
Never exceed the maximum tyre
pressure as indicated on the tyre.
If the tyre pressure must be reduced
or increased, switch off ignition. After
adjusting tyre pressure switch on
ignition and select the relevant setting on the page Tyre load in the Driver
Information Centre 3 98.
Temperature dependency
The tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase. Tyre pressure
values provided on the tyre
information label and tyre pressure
chart are valid for cold tyres, which
means at 20 °C.
The pressure increases by nearly
10 kPa for a 10 °C temperature
increase. This must be considered
when warm tyres are checked.
The tyre pressure value displayed in
the Driver Information Centre shows
the real tyre pressure. A cooled down tyre will show a decreased value,
which does not indicate an air leak.Tyre pressure monitoring
system
The tyre pressure monitoring system
checks the pressure of all four tyres
once a minute when vehicle speed
exceeds a certain limit.Caution
Tyre pressure monitoring system
warns only about low tyre pressure condition and does not replace
regular tyre maintenance by the
driver.
All wheels must be equipped with pressure sensors and the tyres must
have the prescribed pressure.
Note
In countries where the tyre pressure
monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle operating permit.
The current tyre pressures can be
shown in the Vehicle Information
Menu ? in the Driver Information
Centre.
Page 218 of 271
216Vehicle careThe menu can be selected by
pressing the buttons on the turn
signal lever.
Press MENU to select the Vehicle
Information Menu ? .
Turn the adjuster wheel to select the
tyre pressure monitoring system.
Midlevel display:
The tyre pressure for each tyre is
displayed on its own page.
Uplevel display:
The tyre pressures for all tyres are
displayed on one page.
System status and pressure warnings
are displayed by a message
indicating the corresponding tyre in the Driver Information Centre.
The system considers the tyre
temperature for the warnings.
Temperature dependency 3 214.
A detected low tyre pressure
condition is indicated by the control
indicator w 3 96.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 255.
If w flashes for 60-90 seconds then
illuminates continuously, there is a
fault in the system. Consult a
workshop.