Modes and use of selector leverFig. 110
Selection lever / lock button / display
Read and observe
and on page 110 first.
When the ignition is switched on, the gearbox mode and the currently selected gear are indicated in the display » Fig. 110.
The following modes can be selected with the selector lever » Fig. 110.
P
– Parking mode
The driven wheels are locked mechanically in this mode.
Parking mode must only be selected when the vehicle is stationary.
R
- Reverse gear
Reverse gear can only be engaged when the vehicle is stationary and the en-
gine is at idling speed.
N
- Neutral
Power transmission to the drive wheels is interrupted in this mode.
D
/
S
- mode for driving forward (Normal program) / mode for driving
forward (Sport program)
The system switches from one mode to the other by moving the selector lever
into the spring-loaded position
» Fig. 110 .
In mode D or S, the forward gears are shifted automatically depending on the
engine load, the operation of the accelerator pedal, the vehicle speed, and the
selected driving mode .
In mode S, the forward gears are shifted automatically up and down at higher
engine speeds than in mode D.
Selector lever lock
Read and observe
and on page 110 first.
The selector lever is locked in the P and N modes to prevent the forwards trav-
el mode from being selected accidentally and 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. 110 on page 111 .
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 emergency released » page 181.
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 modes R or N from being selec-
ted accidentally.111Starting-off and driving
Assist systems
Braking and stabilisation systems
Introduction
This chapter contains information on the following subjects:
Electronic Stability Control (ESC)
115
Anti-lock Braking System (ABS)
115
Traction Control System (TCS)
115
Electronic Differential Lock (EDL and XDS)
116
Hydraulic Brake Assist (HBA)
116
Hill Hold Control (HHC)
116
Multi-collision brake (MCB)
116
This chapter deals with the functions of the braking and stabilisation systems,
with the error indicator referred to in chapter » page 33, Warning lights .
The braking and stabilisation systems are automatically activated each time the ignition is switched on.
WARNING■ A lack of fuel can cause irregular engine running or cause the engine to
shut down. The brake assist systems would then fail to function – risk of
accident!■
The increased safety provided by the brake assist systems must not
tempt you to take safety risks – risk of accident!
■
Adjust the speed and driving style to the current visibility, weather, road
and traffic conditions.
Electronic Stability Control (ESC)
Read and observe
on page 115 first.
The ESC improves vehicle stability in dynamic driving situations, such as whenthe 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. oversteer), the ESC automatically
brakes individual wheels to maintain the desired direction.
During an intervention of the system, the warning light flashes in the instru-
ment cluster.
Anti-lock Braking System (ABS)
Read and observe
on page 115 first.
ABS prevents the wheels locking when braking. Thereby, it helps 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 pump the brakes or lift off the brake
pedal.
Traction Control System (TCS)
Fig. 113
System button: Activating/deac-
tivating TCS
Read and observe on page 115 first.
TCS prevents the spinning of the wheels of the driven axle. TCS reduces the drive power transmitted to the wheels in the case of slipping wheels. Thereby,
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.
› In Infotainment
» Operating instructions for Infotainment , chapter Vehicle
settings (CAR button) .
› By briefly pressing the symbol key
» Fig. 113 .
115Assist systems
Acoustic signals and display
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!
For information on setting the acoustic signals and a description of the Info-
tainment display, see » Infotainment manual , chapter Vehicle settings (button
CAR) .
Towing a trailer
On vehicles equipped with a factory-fitted towing device, only system areas A
and
B
» Fig. 114 are active when towing a trailer.
Note
The signal tones for front obstacle recognition are factory-set to be higher
than for rear obstacle recognition.
Activation/deactivation
Read and observe
and on page 117 first.
The system is automatically activated by selecting reverse gear or pressing
the symbol button
» Fig. 114 on page 117 .
This is confirmed by a short acoustic signal (the symbol in the button lights
up).
On vehicles with Version 1, the system can be deactivated by moving out of re-
verse gear.
For vehicles with Version 2, the system is deactivated by pressing the symbol
button or automatically at a speed over 10 km/h (the symbol
in the but-
ton goes out).
Displaying an error
If a warning signal sounds for about 3 seconds after activating the system and
there is no obstacle close to your car, this indicates a system fault. The fault is
also indicated by the symbol flashing in the button. Seek help from a spe-
cialist garage.
Note
The system can only be activated via the symbol button at a speed of below
10 km/hr.Automatic system activation when moving forwardFig. 116
Infotainment display: Display
with automatic activation
Read and observe and on page 117 first.
Automatic activation takes place at a speed below around 10 km/h under the following conditions.
› The distance to the obstacle at the front is less than around 90 cm.
› The distance to the obstacle at the front is less than around 30 cm.
After activation, the following is shown in the left pane of the Infotainment
display » Fig. 116 .
Acoustic signals are sounded as of a distance from the obstacle of around
50 cm.
Automatic display can be activated/deactivated in the Infotainment » Infotain-
ment manual , chapter Vehicle settings (CAR button) .
Cruise control system
Introduction
This chapter contains information on the following subjects:
Functioning
119
Operating Description
119
The Cruise Control System (CCS) maintains a set speed without you having to
actuate the accelerator pedal.
The status where the CCS maintains the speed is referred to hereinafter as the
control .
118Driving
At the start of the regulation the GRA regulates the vehicle to the current
speed, and this speed is shown on the instrument cluster display. The warning
light
illuminates in the instrument cluster.
Automatic control interruption
Automatic control interruption occurs if any of the following conditions are
met.
› The brake pedal is operated.
› When one of the brake assist systems (e.g. ESC) intervenes.
› Through an airbag deployment.
› The key
is actuated.WARNING■
Always deactivate the cruise control system after use to prevent the sys-
tem being enabled unintentionally.■
Control may only be resumed if the set speed is not too high for the cur-
rent traffic conditions.
Note
■ During control, speed can be increased by pressing the accelerator pedal. Re-
leasing the accelerator pedal will cause the speed to drop again to the set
speed.■
By pressing the
button during the regulation this is cancelled and the
Speed Limiter is activated.
Speed Limiter
Introduction
This chapter contains information on the following subjects:
Operation
120
Operation description
121
The Speed Limiter limits the maximum driving speed to the set speed limit.
This limit can only be exceeded by depressing the accelerator pedal fully.
The condition in which the Speed Limiter monitors a potential set speed limit
excess is referred to as Regulation.
WARNING■
The Speed Limiter only serves as an assistance and does not relieve the
driver of the responsibility for the vehicle operation.■
Always adjust the speed and driving style to the current visibility, weath-
er, road and traffic conditions.
Operation
Fig. 120
Maxi DOT display: Examples of Speed Limiter status displays.
Fig. 121
Segment display: Examples of Speed Limiter status displays.
Read and observe
on page 120 first.
Status display of the Speed Limiter » Fig. 120, » Fig. 121
Speed limit set, but regulation is inactive.
Control is active.
No speed limit set.
System fault - seek assistance from a specialist garage immediately.
120Driving
Basic requirements for starting the controlThe Speed Limiter is activated.
The current speed is higher than approx. 30 km/h.
Operation description
Fig. 122
Operating elements of the Speed Limiter: Vehicle Speed Limiter /
vehicle with GRA and Speed Limiter
Read and observe
on page 120 first.
Overview of the control elements of the Speed Limiter » Fig. 122ASpeed Limiter disable (set limit delete) Interrupt control (sprung position) Activate Speed Limiter (regulation deactivated) For vehicles with GRA and Speed Limiter the GRA is activated by
the switch in the
position by being adjusted. The activation of
the Speed Limiter occurs only after pressing the button
.BTake control again a)
/ Increase speed - short press (in increments
of 1 km/h), long press (in increments of 10 km/h)CStart regulation / reduce speed - short press (in increments of 1
km/h), long press (in increments of 10 km/h)Dswitch between GRA » page 118and Speed Limitera)
If no speed limit is set, the current speed is set as the speed limit.
At the start of the regulation, the current speed is set as the speed limit and
displayed in the instrument cluster display. The warning light illuminates in
the instrument cluster.
Exceeding the speed limit during the regulation
If exceeding the speed limit is required during the regulation, for example
when overtaking, then the accelerator pedal is to be fully pressed.
When exceeding the speed limit, an acoustic signal sounds and the warning
light
in the instrument cluster flashes.
The regulation is resumed once the speed has fallen below the set limit.
CAUTION
When driving downhill, exceeding the set speed limit may occur. When exceed-
ing the limit, an acoustic signal sounds and the warning light in the instru-
ment cluster flashes.
Note
By pressing the button during the regulation this is cancelled and the GRA
is activated.
Front Assistant
Introduction
This chapter contains information on the following subjects:
Radar sensor
122
Operation
122
Proximity warning (dangerous proximity)
123
Warning and automatic braking
123
Activating/deactivating
123
Information messages
124
The Front Assistant (from here on only referred to as the system) warns you of
the danger of a collision with a vehicle or another obstacle in front of the vehi-
cle and tries to avoid a collision or mitigate its consequences by automatically
applying the brakes as appropriate.
The area in front of the vehicle is monitored by a radar sensor » Fig. 123 on
page 122 .
121Assist systems
WARNING■The system only serves as an assistance and does not relieve the driver
of the responsibility for the vehicle operation.■
The system has physical and system-related limitations. For this reason,
the driver may experience some undesired or delayed system responses in
certain situations. You should therefore always be alert and ready to inter-
vene!
■
Always adapt your speed and safety proximity to the vehicle ahead to the
current visibility, weather, road and traffic conditions.
■
The increased passenger protection afforded through the system must
not tempt you to take greater risks than otherwise – risk of accident!
■
The system does not respond to crossing or oncoming objects.
CAUTION
In case of failure of more than one brake light on the vehicle or on the electri-
cally connected trailer, the system becomes unavailable.
Radar sensor
Fig. 123
Mounting location of the radar
sensor
Read and observe and on page 122 first.
The radar sensor » Fig. 123(Hereinafter referred to simply as the sensor) may
detect objects by radiating and receiving electromagnetic waves.
The sensor function may be impaired in the events of one of the following.
› The sensor is soiled by mud, snow and the like.
› The area in front and around the senor is obscured by labels, auxiliary lights
and similar.
› When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
If the sensor is dirty or covered, the corresponding message appears on the
display of the instrument cluster » page 124, Information messages .
WARNING■
If you suspect that the sensor is damaged, deactivate the 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 accidents! Have the sensor
checked by a specialist garage.
■
The area in front and around the senor should not be obscured by labels,
auxiliary lights and similar. This can lead to impaired function of the sensor
- risk of accidents!
CAUTION
Remove the snow with a brush and the ice with a solvent-free de-icer.
Operation
Fig. 124
Instrument cluster display: Note
(dangerous distance) / warning
or emergency braking at low
speed
Read and observe and on page 122 first.
The system support is provided in the following manner.
› Alerts you about a dangerous proximity to the vehicle ahead.
› Warns you of an impending collision.
› Prepares the brakes for emergency braking prior to a detected danger.
› Assists with a brake action triggered by the driver.
› If the driver fails to respond to a detected danger, an automatic braking ac-
tion is performed.
The system can work only if the following basic conditions are met. The system is activated.
TheTCS is activated » page 115, Traction Control System (TCS) .
The vehicle is moving forwards at a speed of more than approx. 5 km/h.
122Driving
WARNINGIn the following situations, Front Assistant should be switched off for safe-
ty reasons.■
When the vehicle is being towed away.
■
When the vehicle is on a rolling test bench.
■
If an unfounded warning or a system action was taken.
■
When on a truck, or a car ferry service or similar.
Information messages
Read and observe
and on page 122 first.
The warning symbols are shown in the instrument cluster display. Front Assist: No sensor view.
The sensor is soiled or covered.
Stop the car, switch off the engine and clean the sensor or eliminate the dis-
turbance causing the lack of visibility » Fig. 123 on page 122 .
If the message appears again after starting the engine, the system should be disabled » page 123 . Seek help from a specialist garage.
Front Assist not available.
The system is not available for an unknown reason.
Stop the vehicle, switch off the engine and then start it again.
If the message appears again after starting the engine, the system should be disabled » page 123 . Seek help from a specialist garage.
START-STOP
Introduction
This chapter contains information on the following subjects:
Operating conditions for the system
124
Operation in vehicles with manual gearbox
125
Operation in vehicles with automatic gearbox
125
System conditioned automatic start-up
126
Manually deactivating/activating
126
Information messages
126The START-STOP system (hereinafter referred to just as the system) reduces
fuel consumption and polluting emissions and CO 2 emissions by turning the
engine off, e.g. when stopping at traffic lights, and starting the engine again
when moving off.WARNING■ Never let the vehicle roll with the engine switched off.■The brake servo unit and power steering only operate if the engine is run-
ning.
Operating conditions for the system
Fig. 125
Engine is automatically switched
off / automatic engine cut off is
not possible
Read and observe on page 124 first.
For the system-dependent automatic engine shutdown to operate, the follow-
ing conditions must be met.
The driver's door is closed.
The driver has fastened the seat belt.
The bonnet is closed.
The driving speed exceeded 4 km/h after the last stop.
No trailer is coupled.
Some additional conditions for the system to function cannot be either influ-
enced or recognised by the driver. Therefore, the system can react differently
in situations which are identical from the driver's view.
If, after stopping the vehicle, the check icon
» Fig. 125 appears on the dis-
play, then the conditions for automatic engine shutdown are not met.
Running the engine is essential, for example, 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.
124Driving
System conditioned automatic start-upRead and observe
on page 124 first.
When the engine is off, the system can automatically start the engine before
the desired journey continues. The possible reasons for this are, for example:
› The vehicle has begun to roll, e.g. on a slope.
› The brake pedal has been actuated several times.
› The current consumption is too high.
Manually deactivating/activating
Fig. 126
Button for the START-STOP sys-
tem
Read and observe on page 124 first.
Deactivate/activate
›
Press the button
» Fig. 126 .
When start-stop mode is deactivated, the warning light in the button illumi-
nates.
Note
If the system is automatically deactivated when the engine is turned off, then
the automatic start process takes place.
Information messages
Read and observe
on page 124 first.
The warning symbols are shown in the instrument cluster display. Start the engine manually!
START MANUALLY
One of the conditions for automatic engine start is not satisfied or the driver's
seat belt is not fastened. The engine must be started manually.
On vehicles with the starter button the ignition is turned off by the first press
of the start button, only after pressing for the second time is the start process
initiated.
Error: start-stop system
START STOP ERROR
A system error is present. Seek help from a specialist garage.
Fatigue detection (break recommendation)
Introduction
This chapter contains information on the following subjects:
Function
126
Information messages
127
The fatigue detection system (hereinafter referred to only as system) recom-
mends the driver taking a break from driving when, because of the driver's
steering behaviour, driver fatigue can be detected.
WARNING■ For the driving ability is always the driver's responsibility. Never drive if
you feel tired.■
The system may not detect all cases where a break is needed.
■
Therefore, take regular, sufficient breaks during long trips.
■
There will be no system warning during the so-called micro-sleep.
Note
■ In some situations, the system may evaluate the driving incorrectly and thus
mistakenly recommend a break (e.g. sporty driving, adverse weather condi-
tions or poor road conditions).■
The system is designed primarily for use on motorways.
Function
Read and observe
on page 126 first.
From the start of the journey, the system evaluates steering behaviour. If,
while driving, there have been changes in the steering behaviours that are
evaluated by the system as indicating possible fatigue, a break recommenda-
tion is issued.
126Driving