206Driving and operatingspeed 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
125 mph depending on the lighting
conditions. At night the system is
active up to a speed of 100 mph.
Display indication
Information 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 sign is available, a + symbol is
displayed in this area.On Midlevel display, choose Info
Menu ? via MENU and select
traffic sign assistant page with the adjuster wheel on the indicator lever
3 114.
Driving and operating207On Uplevel display, choose Info
Menu via right steering wheel buttons
and press P or Q to select traffic
sign assistant page 3 114.
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.
On Midlevel Display, when traffic sign assistant page is displayed, press
SET/CLR on the indicator lever.
Select Alerts ON or Alerts OFF by
turning the adjuster wheel and press
SET/CLR .
On Uplevel Display, when traffic sign
assistant page is displayed, press q
on the steering wheel controls.
208Driving and operating
Activate alerts by setting J,
deactivate alerts by setting I via
button 9.
Pop-up alert is displayed for approx.
8 seconds in the Driver Information
Centre.
System reset The content of the traffic sign displaycan be cleared in the setting menu of
the traffic sign assistant page by
selecting Reset and confirm by
pressing SET/CLR on the indicator
lever or 9 on the steering wheel
controls.
Alternatively, SET/CLR or 9 can be
pressed for 3 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 or provided by map
data of the navigation system.
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” or a sign from
navigation map data 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
● If no navigation map data is available and speed drops below32 mph (city entry detection)
● If navigation map data is available and a city entry / exit
was detected 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.
Driving and operating209System 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 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 supports the driver
to avoid unintentional crossing of lane markings. The front camera observes
the lane markings between which the
vehicle is driving. If the vehicle
approaches a lane marking without
activated turn signal, the steering
wheel is gently turned to position the
vehicle back into the lane. Turn
steering wheel in same direction, if
system steers not sufficient. Turn
steering wheel gently into opposite
direction, if lane change is intended.
The Lane Keep Assist informs the
driver with an optical warning during
the trajectory correction. If the system is not able to avoid the lane crossing
an additional acoustic warning is
issued.
Unintended lane departure is
assumed:
● without using the turn lights
● using the turn lights in the opposite direction of the lane
departure
● without braking
● without acceleration
● without active steering
Notice
The system might be inactive when
the detected lane markings are ambiguous or insufficient, e.g. in
construction areas.
242Vehicle careNo.Circuit16Fuel injection17Fuel injection18Diesel exhaust system19–20–21–22ABS23Washer system for windscreen
and rear window24–25Diesel fuel heating26Transmission control module27Power tailgate module28–29Heated rear window30Mirror defrost31–No.Circuit32DC transformer / LED display /
Electrical heater / Climate
control / Glow plug controller33–34Horn35Engine control module36Right high beam (Halogen, Eco
LED) / Right low beam (LED)37Left high beam (Halogen, Eco
LED)38LED headlight / Automatic
headlight range adjustment39Front fog light40Central Gateway Module41–42Manual headlight range adjust‐
ment43Fuel pump44Rear view camera / Inside rear
view mirror / Trailer moduleNo.Circuit45LED headlight left / Automatic
headlight range adjustment left46Instrument cluster47Steering column lock48Rear wiper49Outside rearview mirror50LED headlight right / Automatic
headlight range adjustment
right51Left low beam (LED)52Engine control module / Trans‐
mission control module53Windscreen wiper54Windscreen wiper55Diesel Exhaust system56–57–
After having changed defective fuses,
close the fuse box cover and press
until it engages.
244Vehicle careNo.Circuit17Body control module 418Body control module 319Data link connector20Airbag system21Climate control system22Central locking system / tailgate23Electronic key system24Power seat memory function25Airbag system steering wheel26Ignition switch / Steering
column lock27Body control module 228USB socket29Cigarette lighter / Power outlet
front30Selector lever31Rear window wiper32Transmission control moduleNo.Circuit33Anti-theft alarm system / Power
sounder34Parking assist / Side blind spot
alert / Infotainment system /
USB socket35SOS36Info Display / Instrument cluster37Infotainment system / radio
After having changed defective fuses,
close the fuse box cover:
1. Apply the cover on the right side.
2. Fold the left side of the cover forwards. Take care that thesecuring clamp is guided as
shown in the illustration.
Load compartment fuse box The fuse box is located on the left side
of the load compartment behind a
cover.
Remove the cover.
Vehicle care249The tyre pressure information label
on the left door frame indicates the
original equipment tyres and the
correspondent tyre pressures.
The tyre pressure data refers to cold
tyres. It applies to summer and winter
tyres.
Always inflate the spare tyre to the
pressure specified for full load.
The ECO tyre pressure serves to
achieve the smallest amount of fuel
consumption possible.
Make sure tyre loading setting
matches the current tyre pressure.
Tyre loading 3 250.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and
fuel economy and will increase tyre
wear.
Tyre pressures differ depending on
various options.
For the correct tyre pressure value,
follow the procedure below:
● Identify the engine identifier code.Engine data 3 278.
● Identify the respective tyre. ● The tyre pressure tables show all
possible tyre combinations
3 283.
For 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 on a vehicle with tyre
pressure monitoring system, switch
off ignition.
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
1.5 psi 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.
250Vehicle careTyre 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.
Notice
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 Driver Information
Centre.
Midlevel display:
Select the Tyre pressure page under
the Vehicle Information Menu ? in
the Driver Information Centre 3 114.
Uplevel display:
Select the Tyre pressure page under
the Info Menu in the Driver
Information Centre 3 114.
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 3 248.
A detected low tyre pressure
condition is indicated by the control
indicator w 3 111.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 283.
If w flashes for 60-90 seconds then
illuminates continuously, there is a
fault in the system. Consult a
workshop.