
▷When the road surface is poor.▷In the event of strong side winds.
PreCrash
The concept With this system critical driving situations that
might result in an accident can be detected
above a speed of approx. 20 mph/30 km/h. In these situations, preventive measures are au‐
tomatically taken to minimize the risk of an ac‐
cident as much as possible.
Critical driving situations may include:
▷Emergency stop.▷Severe understeering.▷Severe oversteering.
If the vehicle includes the front-end collision
warning or front-end collision warning with
braking feature, impending collisions with vehi‐
cles driving ahead or stopped in front of you
can also be detected within the system's
range.
Information WARNING
The system does not relieve from the
personal responsibility. Due to the system lim‐
its, critical situation could not be detected reli‐
ably or in time. There is risk of an accident. Ad‐
just the driving style to the traffic conditions. Watch traffic closely and actively interfere in
the respective situations.◀
Function
After the safety belt is buckled, the front belts
are automatically pretensioned once after the
vehicle is driven is away.
In critical driving situations, the following indi‐
vidual functions become active as needed:
▷The front belts are automatically preten‐
sioned.▷Automatic closing of the windows.▷Automatic closing of the glass sunroof.▷For vehicles equipped with Comfort Seats:
automatic positioning of the backrest for
the front passenger seat.
After a critical driving situation without an acci‐
dent, the front belts are loosened again. All
other systems can be restored to the desired
setting.
If the belt tension does not loosen automati‐
cally, stop the vehicle and unbuckle the belt
using the red button in the buckle. Fasten the
belt before continuing on your trip.
PostCrash
In the event of an accident, the system can
bring the car to a halt automatically without in‐
tervention by the driver in certain situations.
This can reduce the risk of a further collision
and the consequences thereof.
Depressing the brake pedal can cause the ve‐
hicle to brake harder. This interrupts automatic
braking. Destepping on the gas pedal also in‐ terrupts automatic braking.
After coming to a halt, the brake is released
automatically. Secure the vehicle against roll‐
ing.
Seite 136ControlsSafety136
Online Edition for Part no. 01 40 2 963 410 - VI/15

Driving stability control systemsVehicle features and optionsThis chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems. The respectively applicable country
provisions must be observed when using the
respective features and systems.
Anti-lock Braking System
ABS
ABS prevents locking of the wheels during
braking.
The vehicle contains its steering power even
during full brake applications, thus increasing
active safety.
ABS is operational every time you start the en‐
gine.
Brake assistant When you apply the brakes rapidly, this system
automatically produces the greatest possible
braking force boost. It reduces the braking dis‐
tance to a minimum during emergency stop.
This system utilizes all of the benefits provided
by ABS.
Do not reduce the pressure on the brake pedal
for the duration of the emergency stop.
Adaptive brake assistant In combination with the Active Cruise Control,
this system ensures that the brakes respond
even more rapidly when braking in critical sit‐
uations.Drive-off assistant
This system supports driving off on inclines.
The parking brake is not required.1.Hold the vehicle in place with the foot
brake.2.Release the foot brake and drive off with‐
out delay.
After the foot brake is released, the vehicle is
held in place for approx. 2 seconds.
Depending on the vehicle load or when a trailer
is used, the vehicle may roll back slightly.
Automatic Differential Brake The system controls the driving force by auto‐
matic braking intervention on individual
wheels. The function corresponds to a differ‐
ential lock: the system detects if a wheel be‐
gins to spin, because of loose road surface,
e.g., and automatically brakes it.
The driving force is diverted to the wheel with
better traction.
As a result, the engine force is transferred
more efficiently to the wheels during accelera‐
tions.
Dynamic Performance
Control DPC
The Dynamic Performance Control increases
both the agility of the vehicle as well as the
lane stability.
The system seamlessly handles the distribu‐
tion of the drive torque between the two rear
wheels.
Depending on the situation, the drive torque is
shifted from the wheel on the inside of the
Seite 137Driving stability control systemsControls137
Online Edition for Part no. 01 40 2 963 410 - VI/15

ECO PRO Tip - driving in‐struction 202
EfficientDynamics 202
Electronic displays, instru‐ ment cluster 85
Electronic oil measure‐ ment 232
Electronic Stability Program ESP, see DSC 138
Emergency detection, remote control 35
Emergency release, fuel filler flap 209
Emergency release, parking brake 75
Emergency Request 248
Emergency start function, en‐ gine start 35
Emergency unlocking, trans‐ mission lock 83
Emergency wheel 244
Energy Control 94
Energy recovery 95
Engine, automatic Start/Stop function 71
Engine, automatic switch- off 71
Engine compartment 229
Engine compartment, work‐ ing in 230
Engine coolant 236
Engine idling when driving, coasting 203
Engine oil 232
Engine oil, adding 233
Engine oil additives 234
Engine oil change 234
Engine oil filler neck 233
Engine oil temperature 93
Engine oil types, alterna‐ tive 234
Engine oil types, suitable 234
Engine start during malfunc‐ tion 35
Engine start, jump-start‐ ing 249 Engine start, refer to Starting
the engine 70
Engine stop 70
Engine temperature 93
Entering a car wash 254
Equipment, interior 174
Error displays, see Check Control 89
ESP Electronic Stability Pro‐ gram, see DSC 138
Exchanging wheels/tires 223
Exhaust system 193
Exterior mirror, automatic dimming feature 62
Exterior mirrors 61
External start 249
External temperature dis‐ play 93
External temperature warn‐ ing 93
Eyes for securing cargo 197
F
Failure message, see Check Control 89
False alarm, see Unintentional alarm 47
Fan, see Air flow 169
Filler neck for engine oil 233
Fine wood, care 256
First-aid kit 249
Fitting for towing, see Tow fit‐ ting 252
Flat tire, changing wheels 244
Flat Tire Monitor FTM 116
Flat tire, Tire Pressure Moni‐ tor TPM 112
Flat tire, warning lamp 113, 117
Flooding 193
Floor carpet, care 257
Floor mats, care 257
Folding back rear seat back‐ rests 181 Fold-out position, wiper 79
Foot brake 193
Front airbags 109
Front center armrest 185
Front cupholder 186
Front-end collision warning with braking function 122
Front-end collision warning with City Braking func‐
tion 119
Front fog lamps, , LED, bulb replacement 244
Front fog lights 107
Front fog lights/cornering lights, bulb replace‐
ment 243
Front lights 242
Front-seat passenger airbags, automatic deactivation 111
Front-seat passenger airbags, indicator lamp 111
Front seats 52
FTM Flat Tire Monitor 116
Fuel 210
Fuel consumption, see Aver‐ age fuel consumption 98
Fuel filler flap 208
Fuel gauge 93
Fuel lid 208
Fuel quality 210
Fuel recommendation 210
Fuel, tank capacity 262
Fuse 247
G
Garage door opener, see Uni‐ versal Integrated Remote
Control 174
Gasoline 210
Gear change, Steptronic transmission 81
Gear shift indicator 96
General driving notes 192
Glare shield 176
Glasses compartment 186 Seite 267Everything from A to ZReference267
Online Edition for Part no. 01 40 2 963 410 - VI/15