
The warning light lights up in the instrument cluster when the TCR is deactiva-
ted.
Active driver-steering recommendation (DSR) The DSR indicates to the driver in critical situations a steering recommendation 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.
Hydraulic brake assist (HBA)
The HBA is activated by the very quick operation of the brake pedal. HBA increa- ses the braking effect and helps to shorten the braking distance. To achieve the
shortest possible braking distance, the brake pedal must be applied firmly until the vehicle has come to a complete standstill.
The ABS is activated faster and more effectively with the intervention of the HBA. The HBA is automatically switched off when the brake pedal is released.
Hill hold control (HHC)
The HHC makes it easier to start off on steep hills. The system holds the brake
pressure produced by the activation of the brake pedal for approx. 2 seconds af-
ter the brake pedal is released. The driver can therefore move his foot from the
brake pedal to the accelerator pedal and start off on the slope, without having to
actuate the handbrake.
The brake pressure drops gradually the more you operate the accelerator pedal. If the vehicle does not start off within 2 seconds, it starts to roll back.
The HHC is active as of a 5 % slope, if the driver door is closed. HHC is always ac- tive on slopes when in forward or reverse start off. When driving downhill, it is in-
active.
“Multicollision brake”
The multifunction brake deploys automatic braking after a collision in order to re-
duce the risk of further collisions. Automatic braking can only be deployed at
speeds of over 10 km/h in the event of a frontal or side impact.
The vehicle is slowed down automatically by the ESC system as long as the brakes, the ESC and the requisite electrical system remains operational post-im-
pact.
Automatic braking is not applied if the driver presses the accelerator during the
accident.
Antilock brake system (ABS)
First read and observe the introductory information and safety warn-
ings
on page 112.
ABS prevents the wheels locking when braking. Thus helping the driver to main-
tain 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 pressure
on the brake pedal.
Traction control system (TCS)
Fig. 106
TCS button
First read and observe the introductory information and safety warn- ings on page 112.
If the wheels are slipping, the TCS system adapts the engine speed to the condi-
tions of the road surface. The TCS makes it much easier to start off, accelerate
and climb steep hills even if the conditions of the road surface are unfavourable.
The TCS function is automatically activated each time the ignition is switched on.
If your vehicle is fitted with the ESC system, the ASR is integrated into the ESC
system » page 112 .
During an intervention of the system, the TCS warning light flashes in the in-
strument cluster.
113Assist systems

The TCS should normally always be switched on. It may be advisable to switch off
the system only in exceptional circumstances, such as:
› when driving with snow chains;
› when driving in deep snow or on a very loose surface;
› when it is necessary to “rock a vehicle free” when it has got stuck.
The TCR can be deactivated in the Infotainment or with the button
» Fig. 106 » operating instructions for Infotainment , chapter Setting vehicle
systems (CAR button) .
The warning light lights up in the instrument cluster when the TCR is deactiva-
ted.
Ensure the TCS is activated again afterwards.
Electronic differential lock (EDL)
First read and observe the introductory information and safety warn-ings
on page 112.
If one of the wheels starts to spin, the EDL system brakes the spinning wheel and transfers the driving force to the other wheels. This ensures the stability of the
vehicle and a quick journey.
The EDL switches off automatically if severe stresses exist in order to avoid ex- cessive heat generation in the disc brake on the wheel which is being braked. The
vehicle can continue to be driven and has the same characteristics as a vehicle
not fitted with EDL. The EDL switches on again automatically as soon as the
brake has cooled down.
Parking aidFig. 107
Parking aid: Range of sensors/parking aid button on vehicles with
front and rear sensors
Fig. 108
road display/compact display
The system supports the driver using acoustic signals/Infotainment display when parking and manoeuvring.
Information about setting acoustic signals/description of the display in the Info-
tainment display » operating instructions for Infotainment , chapter Setting vehi-
cle systems (CAR button) .
The system uses ultrasound waves to calculate the distance between the bumper
and an obstacle. The ultrasound sensors are integrated in the front/rear bumper.
The system only operates if the ignition is switched on.
114Using the system

Fastening and unfastening seat beltsFig. 128
Fastening/unfastening the seat belt
Fig. 129
Routing of belt webbing over the shoulders and the lap belt/Rout-
ing of belt webbing for an expectant mother
First read and observe the introductory information and safety warn-
ings
on page 142.
Fasten
›
Correctly adjust the front seat and head restraint before fastening the seat belt » page 63 , Head restraints .
›
Use the lock tongue to slowly pull the webbing over your chest and pelvis.
›
Insert the lock tongue into the belt buckle » Fig. 128 -
that is part of the seat
until it clicks into place.
›
Pull on the belt to check that it has engaged correctly in the lock.
A plastic knob in the belt webbing holds the belt tongue in a position which is
easy to get hold of.
It is important that the belt webbing is properly routed to ensure seat belts offer
the maximum protection. The shoulder part of the seat belt must never run
across the neck but must roughly run over the middle of the shoulder and fit
snugly against the chest. The lap part of the belt must run across the pelvis, must
not be positioned across the stomach and must always fit snugly » Fig. 129 – .
Expectant women must also always wear a seat belt. This is the only way of en-
suring optimal protection for the unborn child. On expectant mothers, the lap part
of the belt must be positioned as low as possible on the pelvis to avoid exerting any pressure on the lower abdomen » Fig. 129 – .
Release
Release the seat belt only when the vehicle is stationary.›
Press the red button in the belt buckle » Fig. 128 –
, the lock tongue pops out.
›
Manually guide the belt back so that it is easier to fully roll up the webbing, the
seat belt does not twist.
Belt inertia reel
Each seat belt is equipped with an inertia reel. This inertia reel offers you com-
plete freedom of movement if the belt is unreeled slowly. If the brakes are ap-
plied suddenly, the inertia reel will block. The belts also block when the car accel-
erates, when driving downhill and when cornering.
CAUTION
When releasing the seatbelt ensure that the tongue of the lock does not damage
the door trim or other parts of the interior.
144Safety

Index
A
ABS Function
113
Warning light17
Accessories165
Active driver-steering recommendation (DSR)112
Adjusting Exterior mirror
58
Interior mirror57
Adjusting seats139
Adjustment Seat
60
Aerial160
see Radio reception162
Airbag146
Deployment146
Front airbag147
Head airbag150
Knee airbag148
Side airbag149
Airbag system146
Air conditioning system Air outlets
82
Climatronic86
Manual air conditioning system84
Air outlets82
Alarm35
Anti-theft alarm system35
Antilock brake system113
Armrest Front
76
rear64
Ashtray70
Assist systems ABS
17, 113
Cruise control systems (CCS)119
EDL114
ESC17, 112
Headlight assist47
Lane Assist126
Park Assist116
Parking aid114
ProActive passenger protection125
Select driving mode124
START/STOP121
TCS16, 113
Auto Check Control12
Automatic driving lamp control45
Automatic gearbox Dynamic shift programme
132
Emergency programme132
Kickdown132
Selector lever-emergency unlocking133
Selector lever lock131
Selector lever positions130
Starting-off and driving130
Tiptronic131
Automatic load deactivation180
Automatic transmission129
Auxiliary heating and cooling system Switching on/off
89
Auxiliary heating (auxiliary heating and ventila- tion)
88
setting90
B
Ball rod Check attachment
108
installing107
Ready position107
removing108
Battery Replacing the battery in the remote control(aux-
iliary heating)
91
Before setting off138
Belt tensioners145
Bonnet Closing171
Opening171
Boot Cover
67
Fastening elements65
Fixing of the floor covering66
Light65
see Boot lid37
Boot lid37
Automatic locking38
Brake booster97
Brake fluid Checking
175
Brake pads Indicator light
20
Brakes Brake assist systems
112
Brake booster97
Handbrake98
Running in100
Warning light14
Braking Brake fluid
175
Information for braking97
Breakdown kit192
Break recommendation see Fatigue detection
27
Bulbs Replacing
202
Button in the driver's door Electrical power windows
38
C
Car computer see Multifunction display
22
Car jack188
Carrier68
Catalytic converter100
Central locking button32
212Index