Instruments and controls139
on the ignition or uses the last
chosen setting.
Auto Demist : Activate or deactivate
auto demist.
Auto Rear Demist : Activates
automatically the rear heated
window.
■ Comfort and Convenience
Chime Volume : Change the volume
of warning chimes.
Personalisation by Driver :
Activates or deactivates the
personalisation function.
Auto Reverse Gear Wiper : Activate
or deactivate automatically
switching on of the rear window
wiper when reverse gear is
engaged.
■ Collision Detection Systems
Park Assist : Activate or deactivate
the ultrasonic sensors.
Automatic Collision Preparation :
Activates or deactivates the
automatic brake functionality of the
vehicle in the event of imminent
collision danger. The following is
selectable: the system will takeover brake control, warn by chimes
only or is deactivated completely.
Side Blind Zone Alert : Activates or
deactivates the side blind spot alert system.
■ Lighting
Vehicle Locator Lights : Activate or
deactivate the entry lighting.
Exit Lighting : Activate or deactivate
and change the duration of exit lighting.
■ Power Door Locks
Open Door Anti Lock Out : Activate
or deactivate the automatic door locking function while a door is
open.
Auto Door Lock : Activates or
deactivates the automatic door
unlocking function after switching off ignition. Activates or deactivates the automatic door locking function
after driving-off.
Delay Door Lock : Activate or
deactivate the delayed door locking
function.■ Remote Lock/Unlock/Start
Remote Lock Feedback : Activate
or deactivate the hazard warning
light feedback whilst locking.
Remote Unlock Feedback : Activate
or deactivate the hazard warning
flasher feedback whilst unlocking.
Remote Door Unlock : Change the
configuration to unlock only the
driver's door or the whole vehicle
whilst unlocking.
Relock Remotely Unlocked Doors :
Activates or deactivates the
automatic relock function after
unlocking without opening the
vehicle.
■ Return to Factory Settings? : Reset
all settings to the default settings.
176Driving and operating
Control indicator m flashes: electric
parking brake is not fully applied or released. When continuously
flashing, release electric parking
brake and retry applying.
Brake assist If the brake pedal is depressed
quickly and forcefully, maximum
brake force is automatically applied
(full braking).
Maintain steady pressure on the
brake pedal for as long as full braking
is required. Maximum brake force is
automatically reduced when the
brake pedal is released.
Hill start assist The system helps prevent unintendedmovement when driving away on
inclines.
When releasing the foot brake after
stopping on an incline, the brakes
remain on for a further two seconds.
The brakes release automatically as
soon as the vehicle begins to
accelerate.The hill start assist is not active during
an Autostop.Ride control systems
Traction Control system
The Traction Control system (TC) is a
component of the Electronic Stability
Control (ESC) 3 177.
TC improves driving stability when
necessary, regardless of the type of
road surface or tyre grip, by
preventing the drive wheels from
spinning.
As soon as the drive wheels starts to spin, engine output is reduced and
the wheel spinning the most is braked
individually. This considerably
improves the driving stability of the
vehicle on slippery road surfaces.
TC is operational after each engine
start as soon as the control indicator
b extinguishes.
When TC operates b flashes.
196Driving and operating
acceptable operation, the vehicle
does not need service. Firmly apply
the accelerator pedal to override the automatic braking.
Settings Settings can be changed in the Auto
collision preparation menu in the
vehicle personalisation, 3 132.
Fault
In the event of a system service
requirement, a message is displayed
in the Driver Information Centre.If the system does not work as it
should do, vehicle messages are
displayed in the Driver Information
Centre.
Vehicle messages 3 126.
Parking assist
The parking assist makes parking
easier by measuring the distance between the vehicle and obstacles,
and giving acoustic signals. It is the
driver, however, who bears full
responsibility for the parking
manoeuvre.
The system consists of four ultrasonic parking sensors in the rear bumper. If
the vehicle is equipped with a front
parking assist, the system consists of
four additional ultrasonic parking
sensors in the front bumper.
The system uses two different
frequencies for the front and rear
sensors, respectively, each with a
different sound.
Control indicator r 3 116.
Button r or D
Driving and operating197
Parking assist will be activated and
deactivated by pressing the parking
assist button r. If the vehicle is
additionally equipped with advanced
parking assist 3 199 parking assist is
equipped with button D. In this case
both systems will be operated by
button D.
For activating or deactivating parking
assist push button r or D once
briefly. For activating or deactivating
advanced parking assist push button
r or D for approx. one second.
If one system is active, it can be
switched between both systems by
pushing the button shorter or longer.Activation
When reverse gear is engaged, the
system is activated automatically.
The front parking assist can also be activated at a low speed by pressing
the parking assist button r or D
briefly.
An illuminated LED in the parking
assist button indicates that the
system is ready to operate.
Indication The system warns the driver withacoustic signals against handicaps in
front of or behind the vehicle.
Depending on which of the sensors
are closer to an obstacle, you will hear a buzzing sound of the respective
sensors. The interval between the
sounds becomes shorter as the
vehicle gets closer to the obstacle.
When the distance is less than
30 cm, the buzzing is continuous.
Additionally the distance to obstacles
can be shown in the Driver
Information Centre 3 119.
On version with Uplevel-Display, the
distance to a front obstacle is
indicated by changing segments.
198Driving and operating
On version with Uplevel-Combi-
Display, the distance to a front and
rear obstacle is indicated by changing distance lines around the vehicle.
The distance indication in the display
can be inhibited by vehicle messages
with a higher priority. Once the
distance indication was overwritten by a vehicle message, distance is no
more indicated until parking assist is
activated again.
Deactivation
Deactivate the system by pressing
the parking assist button r or D
briefly.
The LED in the button extinguishes
and Park Assist Off will be displayed
in the Driver Information Centre.
The system is deactivated
automatically when exceeding a
certain speed.
If the r or D button is pressed
once within an ignition cycle, the front
parking assist is always reactivated
when the vehicle speed goes below a certain value.
Fault In the event of a fault in the system,
r illuminates or a message is
displayed in the Driver Information
Centre.
If the system does not work due to temporary conditions like snow
covered sensors, r illuminates or a
message is displayed in the Driver
Information Centre.
Vehicle messages 3 126.9 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.
Special attention has to be paid to
low obstacles which can damage
the lower part of the bumper.
Caution
Performance of the sensor 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 involved (e.g.
off-road vehicles, mini vans,
vans). Object identification in the
upper part of these vehicles
cannot be guaranteed.
Driving and operating199Objects with a very small reflection
cross section, like objects of
narrow size or soft materials, may
not be detected by the system.
Parking assist will not detect
objects out of the detection range.
Notice
The parking assist system
automatically detects factory-fitted
towing equipment. It is deactivated
when the connector is plugged in.
The sensor may detect a non-
existing object (echo disturbance)
caused by external acoustical or
mechanic disturbances.
Notice
If engaging a forward gear and
exceeding a certain speed, the rear
parking assist will be deactivated
when the rear carrier system is
extended.
If engaging reverse at first, the
parking assist will detect the rear
carrier system and provide a buzzing
sound. Press r or D briefly to
deactivate the parking assist.
Advanced parking assist
The advanced parking assist system
manoeuvres the driver into a parking slot by giving instructions on the
Driver Information Centre and
acoustic signals. It is the driver,
however, who bears full responsibility for accepting the parking slot
suggested by the system and the
parking manoeuvre.
The system uses the sensors of the
parking assist system in combination
with two additional sensors on both
sides of the front bumper and the rear
bumper.
Button D
Advanced parking assist and parking
assist 3 196 both use the same button
to operate the systems. For activating
or deactivating parking assist push
button once briefly. For activating or
deactivating advanced parking assist
push button D for approx. one
second.
If one system is active, it can be
switched between both systems by
pushing the button shorter or longer.
Activation
200Driving and operating
When looking for a parking slot, the
system has to be activated by
pushing the button D for approx.
one second.
The system can only be activated at
a speed up to 18 mph and the system searches for a parking slot at a speed
up to 18 mph.
The maximum allowed parallel
distance between the vehicle and a
row of parking cars is 1.8 metres.
Notice
Before using the advanced parking
assist the first time, the vehicle has
to be driven at least for 25 miles to
calibrate the system automatically.Functionality
When the vehicle passes a row of
cars and the system is activated, the
advanced parking assist system
begins looking for a suitable parking
slot. When a suitable slot is detected, a visual feedback on the Driver
Information Centre and an acoustic
signal are given.
The parking slot suggestion of the
system is accepted when the vehicle
is stopped by the driver within
10 metres after the Stop message is
given. The system calculates the
optimal route into the parking slot.
Then it manoeuvres the driver into the
slot by giving detailed instructions.
Driving and operating201
The instructions show:■ a hint when driving faster than 18 mph,
■ the demand to stop the vehicle, when a parking slot is detected,
■ the direction of driving during the parking manoeuvre,
■ the steering wheel position during parking,
■ for some of the instructions a progress bar is shown.
A successful parking manoeuvre is
indicated by the End position symbol.If the driver does not stop the vehicle
within 10 metres after a parking slot is
proposed, the system starts to search
for another suitable parking slot.
Changing the parking side
The system is configured to detect
parking slots on the passenger side. To detect parking slots on the driver
side, switch turn indicator to the driver side.
Display priorities
After activating the advanced parking
assist, a message appears on the
Driver Information Centre. Indication
of messages with higher priority like
vehicle messages 3 126 will be
displayed. After approving the
message by pressing the SET/CLR
button, parking assist messages
appear again and parking can be
continued.
Deactivation The system is deactivated by:
■ pushing button D for approx.
one second
■ parking manoeuvre successfully ended
■ driving faster than 18 mph
■ switching off the ignition
Deactivation by the driver or by the
system during manoeuvring will be indicated by Parking Deactivated in
the Driver Information Centre.