OperationFig. 164
Display
Vehicles with manual transmission
The engine is automatically switched off as soon as the vehicle comes to a
halt, the shift lever is moved into neutral and the clutch pedal is released.
The engine is automatically started as soon as the clutch pedal is depressed.
Vehicles with automatic transmission
The engine is automatically switched off as soon as the vehicle comes to a
halt and the brake pedal is operated.
The motor is automatically started as soon as the accelerator pedal is de-
pressed or, if the Auto Hold function is deactivated, when the brake pedal is
released.
Requirements for the system to function correctly
The following conditions must be met for the system to function correctly.
The driver's door is closed.
The driver has fastened the seat belt.
The bonnet is closed.
The driving speed was higher than 4 km.h after the last stop.
System status
The system status is shown in the display when the vehicle comes to a halt
» Fig. 164 .
The engine is switched off automatically; when moving off, the ignition
process will be initiated automatically.
The engine is not switched off automatically.
Reasons for the engine running
It may be essential for the engine to keep running when the vehicle comes to
a halt, for the following reasons. ▶ The engine temperature for the proper function of the system has not yet
been reached.
▶ The charge state of the vehicle battery is too low.
▶ The current consumption is too high.
▶ High air-conditioning or heating capacity (high fan speed, big difference be-
tween the desired and actual interior temperature).
When the engine is shut-down automatically and the system detects that the
engine is required such as when the brake pedal is pressed repeatedly then
the system automatically starts the engine.
Infotainment display
Information about the current status of the system can be displayed in the In-
fotainment display » Owner´s Manual Infotainment , chapter CAR - Vehicle set-
tings (CAR button) .
Note
■
If the vehicle remains outdoors for a long time in minus temperatures or in
direct sunlight, it can take several hours until the internal temperature of the
vehicle battery reaches a suitable temperature for proper operation of the
START STOP system.■
If the driver's seat belt is removed for more than approx. 30 seconds or the
driver's door is opened during stop mode, the engine will have to be started
manually.
■
No automatic engine shut-down takes place when a vehicle with automatic
transmission is moving at low speed (e.g. during a traffic jam) and remains sta-
tionary after pressing the brake pedal lightly. Automatic engine shut-down
takes place if you press the brake pedal down with more force.
■
For vehicles with automatic transmission there is no automatic engine shut-
down when the system detects a manoeuvring action due to a large steering
angle.
131Starting-off and Driving
Selector lever lockFig. 170
Shift lock button
Read and observe and on page 135 first.
The selector lever is locked in mode P and N to prevent that the forward driv-
ing is selected accidentally, thereby setting the vehicle in motion.
The selector lever is locked only when the vehicle is stationary and at speeds
up to 5 km/h.
The selector lever lock is indicated by the illumination of the warning light.
The selector lever is not locked when quickly moving across the position N
(e.g. from R to D/S ). This, for example, helps to rock out a vehicle that is stuck,
e.g. in a bank of snow. The selector lever lock will engage if the lever is in posi-
tion N for more than approx. 2 seconds without the brake pedal being de-
pressed.
Releasing selector lever from mode P or N (selector lever lock)
›
Press the brake pedal and the lock button at the same time in the direction
of
1
» Fig. 170 .
Just depress the brake pedal, if you would like to change from the mode N to
D/S .
Defective selector lever lock
If the selector lever lock is defective or its power supply is interrupted (e.g. dis-
charged vehicle battery, faulty fuse), the selector lever can no longer be moved
out of position P in the normal manner and the vehicle can no longer be driven.
The selector lever must be unlocked specially » page 237.
Note
If you want to move the selector lever from mode P to mode D/S or vice versa,
move the selector lever quickly. This prevents that you accidentally select
mode R or N.Manual gear shifting (Tiptronic)Fig. 171
Selector lever/multi function steering wheel
Read and observe
and on page 135 first.
Tiptronic mode makes it possible to manually shift gears with the selector lev-
er or multifunction steering wheel. This mode can be selected both while stop-
ping and while driving.
The currently selected gear is indicated in the display » Fig. 169 on page 136 .
The gear shift indicator should be observed when changing gear » page 42.
Switching to manual shifting
›
Push the gear selector from position D/S towards the right, or left in a right-
hand drive vehicle.
When switching to the manual shifting while driving, the current gear is main-
tained.
Shifting up gears
›
Push the selector lever forwards
+
» Fig. 171 .
›
Pull the paddle +
» Fig. 171 briefly towards the steering wheel.
Shifting down gears
›
Push the selector lever backwards
-
» Fig. 171 .
›
Pull the paddle -
» Fig. 171 briefly towards the steering wheel.
Temporarily switching to manual shifting in position D/S
›
Pull one of the -/+ paddles
» Fig. 171 briefly towards the steering wheel .
Manual gear shifting is deactivated if more than 1 minute passes after either of
the -
/+ paddles was pulled. The temporary switch to manual gear shifting can
also be deactivated by pulling the + paddle towards the steering wheel for
more than 1 second.
137Starting-off and Driving
Note■It may be beneficial, for example, when travelling downhill, to use manual
shifting of gears. Shifting to a lower gear reduces the load on the brakes and
hence the wear of the brakes » page 132.■
When accelerating, the gearbox automatically shifts up into the higher gear
just before the maximum permissible engine speed is reached.
■
If a lower gear is selected, the gearbox does not shift down until there is no
risk of the engine over revving.
Starting-off and driving
Read and observe
and on page 135 first.
Starting off
›
Start the engine.
›
Firmly depress and hold the brake pedal.
›
Press the lock button in the direction of
1
» Fig. 170 on page 137 and hold.
›
Move the selector lever into the desired position » page 136 and then release
the lock button.
›
Release the brake pedal and accelerate.
Stopping (while the car is moving)
›
Depress the brake pedal and bring the vehicle to a stop.
›
Keep holding the brake pedal until driving is resumed.
The selector lever position N does not have to be selected when stopping for a
short time, such as at a cross roads.
Kick down
The kick down function allows you to achieve the maximum acceleration of
your vehicle while driving.
When the accelerator pedal is fully depressed, the kick down function is activa-
ted in any forward driving mode.
The gearbox shifts down one or more gears depending on the vehicle speed
and engine speed, and the vehicle accelerates.
The gearbox does not shift up into the highest gear until the engine has
reached its maximum revolutions for this gear range.
Driving in neutral position in mode E (free-wheel)
›
Move the selector lever into the position D/S.
›Select the driving mode Eco or Individual (Drive - Eco)
» page 171, Selection
of the driving mode(Driving Mode Selection) .›
Remove your foot from the accelerator pedal (the speed is higher than 20
km/h).
The vehicle moves without the braking effect of the engine.
The gear is selected again automatically, when you briefly depress the acceler- ator brake pedal or pull the left rocker switch -
towards the steering wheel
» page 137 , Manual gear shifting (Tiptronic) .
This function is not available when towing a trailer or when another accessory
is connected to the trailer socket.
Launch control 1)
The launch control function allows the vehicle in mode S or Tiptronic to reach
its maximum acceleration when starting off.
›
Disable the TCS » page 143, Braking and stabilisation systems .
›
START STOP deactivate » page 132, Manually deactivating/activating the
system .
›
Fully depress and hold the brake pedal with your left foot.
›
Fully depress the accelerator pedal with your right foot.
›
Release the brake pedal.
The vehicle starts off with maximum acceleration.
›
Reactivate the TCS and START STOP when the desired speed has been
reached.
WARNINGRapid acceleration, particularly on slippery roads, can lead to loss of control
of the vehicle – risk of accident!
Running-in and economical driving
Introduction
This chapter contains information on the following subjects:
Running-in
139
Tips for economical driving
139
1)
This function is only valid for some engines.
138Driving
Radar sensorFig. 174
Mounting location of the radar
sensor
Read and observe on page 142 first.
The radar sensor (hereinafter referred to only sensor) uses electromagnetic
waves to capture the traffic situation ahead of the vehicle. The radar is located
under a cover » Fig. 174.
The sensor is part of the ACC » page 163 and Front Assist » page 168systems.
The sensor function may be impaired in the event of one of the following sit-
uations arising. ▶ The sensor cover is soiled by mud, snow and the like.
▶ The area in front and around the sensor cover is obscured by labels, auxiliary
lights and similar.
▶ When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
▶ In exceptional cases, the sensor may be covered up in the area under the
cover, e.g. due to snow.
If the sensor cover of the sensor is dirty or covered, a message to that effect
from the ACC » page 168 or Front Assist » page 171 system appears in the
instrument cluster display.
WARNING■ If you suspect that the sensor has been damaged, deactivate the ACC
» page 163 und Front Assist » page 168 system. Have the sensor checked
by a specialist garage.■
The sensor can become misaligned by collisions or by damage to the front
of the vehicle, the wheel arch or the underside of the vehicle. This can lead
to impaired function of the sensor - risk of accident! Have the sensor
checked by a specialist garage.
■
The area in front and around the sensor cover should not be obscured by
labels, auxiliary lights and similar. This can lead to impaired function of the
sensor - risk of accident!
CAUTION
Remove snow with a brush and ice with a solvent-free de-icer from the sensor
cover.
Braking and stabilisation systems
Introduction
This chapter contains information on the following subjects:
Stability Control (ESC)
144
Anti-lock braking system (ABS)
144
Traction control (TCS)
144
Electronic differential lock (EDL and XDS)
145
Driver Steering Recommendation (DSR)
145
Brake Assist (HBA)
145
Hill Start Assist (HHC)
145
Multi collision brake (MCB)
145
Trailer stabilization system (TSA)
146
Auto Hold function
146
This chapter describes the functions of the brake and stabilization systems.
The error display is in Chapter » page 31, Warning lights .
The brake and stabilization systems are automatically activated each time the
ignition is switched on, unless otherwise indicated.
143Assist systems
WARNINGThe general information relating to the use of assistance systems must be
observed » page 142, in section Introduction .
Stability Control (ESC)
Fig. 175
Press the ESC system
Read and observe on page 144 first.
The ESC improves vehicle stability in dynamic driving situations, such as when
the vehicle starts to skid.
The ESC monitors whether the desired direction of the current vehicle motion
is occurring. In case of any deviation (e.g. over steer), the ESC automatically
brakes individual wheels to maintain the desired direction.
During an intervention of the system, the indicator light
flashes in the in-
strument cluster.
Enable/disable ESC Sport
The activation of the ESC sports allows a sportier driving style. With a slight
over or under steering of the vehicle take no ESC interventions take place and
the TCS is restricted so that the spinning of the wheels of the driven axle can
occur.
The activation or deactivation of the ESC sports can be done in one of two
ways. ▶ By pressing the Symbol key
for the activation and briefly pressing the but-
ton for the deactivation » Fig. 175.
▶ Infotainment » Owner´s Manual Infotainment , chapter CAR - vehicle set-
tings .
Upon deactivation, in the instrument cluster the indicator light comes on and
the display shows the following message.ESC sport: directional stabil. restricted.ESC SPORT
Upon deactivation, in the instrument cluster the control indicator
turns off
and the display shows the following message.
Stabilisation control (ESC) activated.ESC ON
Anti-lock braking system (ABS)
Read and observe
on page 144 first.
ABS prevents the wheels locking when braking. Thus helping the driver to
maintain control of the vehicle.
The intervention of the ABS is noticeable from the pulsating movements of
the brake pedal which is accompanied by noises.
When the ABS system is active, do not brake periodically or reduce the pres-
sure on the brake pedal.
Traction control (TCS)
Read and observe
on page 144 first.
TCS prevents the spinning of the wheels of the driven axle. TCS reduces thedrive power transmitted to the wheels in the case of slipping wheels. Thus, for
example, driving on road surfaces with low grip is made easier.
During a TCS intervention, the indicator light flashes in the instrument clus-
ter.
Activating/deactivating TCS
The activation or deactivation of TCS can be done, depending on equipment, in
one of the following ways. ▶ Infotainment » Owner´s Manual Infotainment , chapter CAR - vehicle set-
tings .
▶ By briefly pressing the symbol key
» Fig. 175 on page 144 .
144Driving
Upon deactivation, in the instrument cluster the indicator light illuminates
and the display shows the following message.Traction control (ASR) deactivated.ASR OFF
Upon activation, in the instrument cluster the indicator turns
and the display
shows the following message.
Traction control (ASR) activated.ASR ON
The TCS should normally always be enabled. The system should be deactivated
only in the following situations, for example. ▶ When driving with snow chains.
▶ When driving in deep snow or on a very loose surface.
▶ When it is necessary to “rock” a car free when it has become stuck.
Electronic differential lock (EDL and XDS)
Read and observe
on page 144 first.
EDL
EDL prevents the turning of the respective wheel of the driven axle. EDL
brakes the spinning wheel, if necessary, and transmits the driving force to the
other driving wheel. Driving becomes easier on road surfaces with different
traction under each wheel of the driven axle.
EDL switches off automatically to avoid excessive heat generation on the
brake of the wheel being braked. Once the brakes have cooled down, there is
an automatic re-activation of EDL.
XDS
XDS is an extension to the electronic differential lock. XDS does not respond to
traction, but to the load relief of the inner front wheel of the driving axle dur-
ing fast cornering.
The automatic brake intervention on the brake of the wheel with reduced load
prevents the wheel from spinning. Thus, the traction is improved and the vehi-
cle can continue to follow the desired track.
Driver Steering Recommendation (DSR)
Read and observe
on page 144 first.
In critical situations, the DSR provides the driver with a steering recommenda-tion in order to stabilise the vehicle. The DSR is activated, for example, on the
right and left vehicle side when braking sharply on different road surfaces.
Brake Assist (HBA)
Read and observe
on page 144 first.
The HBA increases the braking effect and helps to reduce the braking dis-
tance.
The HBA is activated by very quick operation of the brake pedal. In order to
achieve the shortest possible braking distance, the brake pedal must be ap-
plied firmly until the vehicle has come to a standstill.
The HBA function is automatically deactivated when the brake pedal is re-
leased.
Hill Start Assist (HHC)
Read and observe
on page 144 first.
When driving on slopes, HHC allows you to move your foot from the brake ped-al to the accelerator pedal without the vehicle rolling downhill on its own.
The system holds the brake pressure produced by the activation of the brake
pedal for approx. 2 seconds after the brake pedal is released.
The HHC is active from a 5% slope if the driver's door is closed. HHC is only ev-
er active on slopes when in forward or reverse start off.
Multi collision brake (MCB)
Read and observe
on page 144 first.
The MCB helps to decrease speed after a collision through automatic brakinginterventions and to stabilize the vehicle. This reduces the risk of a subse-
quent crash due to uncontrolled vehicle movement.
145Assist systems
Fig. 178
Sampled areas and range of the
sensors
Read and observe and on page 147 first.
The system uses ultrasound waves to calculate the distance between the
bumper and an obstacle. The ultrasonic sensors are, depending on vehicle
equipment, located in the back or in the front bumper » Fig. 177.
Depending on the equipment, the following system variants are possible
» Fig. 178 .
▶ Variant 1: warns of obstacles in the areas
C
,
D
.
▶ Variant 2: warns of obstacles in the areas
A
,
B
,
C
,
D
.
▶ Variant 3: warns of obstacles in the regions
A
,
B
,
C
,
D
,
E
.
Approximate range of sensors (in cm)
Area » Fig. 178Variant 1
(4 sensors)Version 2
(8 sensors)Variant 3
(12 sensors)A-120120B-6090C160160160D606090E--90
Audible signals
The interval between the acoustic signals becomes shorter as the clearance is
reduced. A continuous tone sounds from a distance of approx. 30 cm - danger
area. From this moment on do not continue driving!
The acoustic signals can be set in the Infotainment » Owner´s Manual Infotain-
ment , chapter CAR - Vehicle Settings .
Towing a trailer
When towing, or when another accessory is connected to the trailer socket on-
ly the areas
A
and
B
» Fig. 178 are active in the system.
Note■
If with Version 3 vehicles not all fields around the vehicle are active after ac-
tivation the vehicle should be moved forwards or backwards.■
The signal tones for front obstacle recognition are factory-set to be higher
than for rear obstacle recognition.
Display in the Infotainment display
Fig. 179
Display
Read and observe and on page 147 first.
Function buttons and obstacle warning » Fig. 179ARoad display. Depending on the Infotainment type: Switching off park assistant dis-
play. Switching audible parking signals on/off.Change to rear-view camera display .Message: Look! Safe to move?Colour of an object detected in the collision area (the distance to the
obstacle is less than 30 cm).
Do not continue driving in the direc-
tion of the obstacle!Colour of an object detected in the manoeuvring area (the distance to
the obstacle is more than 30 cm).Colour of an object detected in the outside the manoeuvring area (the
distance to the obstacle is more than 30 cm).System failure (there is no indication of obstacles).
Road display
The roadway display varies depending on the steering angle
A
» Fig. 179 and
displays the roadway on which the vehicle would take with the current steer-
ing wheel position.
148Driving
Function keysFig. 186
Function keys
Read and observe and on page 151 first.
The mode changes and other adjustments are made using the function keys
on the display.
Function buttons » Fig. 186
Turns off the display of the area behind the vehicle
Mode - traverse parking
Mode - parallel parking
Mode - driving up to a trailer / distance monitoring
Mode - monitor the area behind the vehicle (wide view)
Display settings - brightness, contrast, colour
Parking aid (mini display)
Enabling/disabling the audible signals
Enabling/disabling the mini display
Switch to full screen display
Guidelines and roadway
Fig. 187
Orientation and lane lines
ABCDEFGRead and observe and on page 151 first.
In the mode for transverse and parallel parking guidance for the assessment of
distance and lane lines are displayed.
Display » Fig. 187
The distance is about 40 cm (safety distance limit)
The distance is approximately 100 cm
The distance is approximately 200 cm
Lane lines
The distance between the side lines corresponds approximately to the vehicle width including mirrors.
Lane
The lane lines
D
» Fig. 187 change depending on the steering angle and indi-
cate the roadway on which the vehicle would take with the current steering
wheel position. The lane lines terminate approximately 300 cm behind the ve-
hicle.
CAUTION
The objects shown in the display can be closer or even further away than they
appear. This is especially the case in the following situations.■
Protruding objects, such as the rear of a truck and the like.
■
When driving from a horizontal surface into a slope or a depression.
■
When driving from a slope or a depression onto a horizontal surface.
Note
The distance between the orientations behind the vehicle may vary slightly
depending on the load condition of the vehicle rear and on the road inclination.ABCD153Assist systems