Driving and operating233If there is no vehicle ahead or the
vehicle ahead is out of range, two
dashes will be displayed: -.- s.
If Adaptive cruise control is active,
this page shows the alert sensitivity
setting instead of following distance setting. 3 222.
Active Emergency Braking
Active emergency braking can help to reduce the damage and injury from
crashes with vehicles and obstacles
directly ahead, when a collision can no longer be avoided either by
manual braking or by steering. Before
the active emergency braking
applies, the driver is warned by the forward collision alert 3 229.
The feature uses various inputs (e.g.
radar sensor, brake pressure, vehicle speed) to calculate the probability of
a frontal collision.
Active emergency braking operates automatically above walking speed,
provided that Auto collision
preparation setting is not deactivated
in the vehicle personalisation menu
3 124.
The system includes: ● brake preparation system
● emergency automatic braking
● forward looking brake assist9Warning
This system is not intended to
replace the driver responsibility of driving the vehicle and looking
ahead. Its function is limited to
supplemental use only. The driver shall continue to apply the brake
pedal as the driving situation
dictates.
Brake preparation system
When approaching a vehicle ahead
so quickly that a collision is likely, the
brake preparation system slightly
pressurises the brakes. This reduces
the response time, when a manual or automatic braking is requested.
The brake system is prepared so that braking can occur more rapidly.
Emergency automatic braking
After the brake preparation and just
before the imminent collision, this
function automatically applies limited
braking to reduce the impact speed of the collision.
Forward looking brake assist
In addition to brake preparation
system and emergency automatic
braking, the forward looking brake
assist function makes the brake assist more sensitive. In this way,
depressing the brake pedal slightly
results immediately in a strong
braking. This function helps the driver
brake quicker and stronger before the imminent collision.
234Driving and operating9Warning
Active emergency braking is not
designed to apply strong
autonomous braking or to avoid automatically a collision. It is
designed to reduce the vehicle
speed before collision. It may not
react on stopped vehicles,
pedestrians or animals. After a
sudden lane change, the system
needs a certain time to detect the
next preceding vehicle.
The complete attention of the
driver is always required while
driving. The driver shall always be ready to take action and apply the brakes and steer to avoid
collisions. The system is designed
to work with all occupants wearing their seat belts.
System limitations
The active emergency braking has
limited or no function during rain,
snow or heavy dirt, as the radar
sensor can be covered by a water
film, dust, ice or snow. In case of
sensor blockage, clean the sensor
cover.
In some seldom cases the active
emergency braking system may
provide a short automatic braking in
situations that seem to be
unnecessary, for instance due to
traffic signs in a curve or due to
vehicles in another lane. This is
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
vehicle personalisation menu in the
Info-Display.
Select the relevant setting in
Settings in the Info-Display.
Vehicle personalisation 3 124.
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, vehicle messages are
displayed in the Driver Information
Centre.
Vehicle messages 3 122.
Parking assist
Front-rear parking assist9 Warning
The driver bears full responsibility
for the parking manoeuvre.
Always check the surrounding
area when driving backwards or
forwards while using parking
assist system.
The front-rear parking assist
measures the distance between the vehicle and obstacles in front of and
behind the vehicle. It informs and
warns the driver by giving acoustic
signals and display indication.
It uses two different acoustic warning
signals for the front and rear
monitoring areas, each with a
different tone frequency. The signal
258Vehicle careVehicle careGeneral Information...................259
Accessories and vehicle modifications .......................... 259
Vehicle storage ........................259
End-of-life vehicle recovery .....260
Vehicle checks ........................... 260
Performing work ......................260
Bonnet ..................................... 260
Engine oil ................................. 261
Engine coolant ......................... 262
Power steering fluid .................263
Washer fluid ............................ 264
Brakes ..................................... 264
Brake fluid ............................... 264
Vehicle battery ......................... 264
Diesel fuel system bleeding .....266
Wiper blade replacement ........266
Bulb replacement .......................267
Halogen headlights ..................267
LED headlights ........................ 269
Fog lights ................................. 269
Tail lights ................................. 270
Side turn lights ......................... 273
Number plate light ...................273Interior lights ............................ 274
Instrument panel illumination ...274
Electrical system ........................274
Fuses ....................................... 274
Engine compartment fuse box . 276
Instrument panel fuse box .......278
Load compartment fuse box ....279
Vehicle tools .............................. 281
Tools ........................................ 281
Wheels and tyres .......................281
Winter tyres ............................. 281
Tyre designations ....................281
Tyre pressure .......................... 282
Tyre pressure monitoring system .................................... 283
Tread depth ............................. 286
Changing tyre and wheel size . 287
Wheel covers ........................... 287
Tyre chains .............................. 287
Tyre repair kit .......................... 287
Wheel changing .......................290
Spare wheel ............................ 293
Jump starting ............................. 296
Towing ....................................... 298
Towing the vehicle ...................298
Towing another vehicle ...........299Appearance care .......................300
Exterior care ............................ 300
Interior care ............................. 302
264Vehicle careWasher fluid
Fill with clean water mixed with a
suitable quantity of approved
windscreen washer fluid which
contains antifreeze.
Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Brakes
In the event of minimum thickness of
the brake lining, a squealing noise
sounds during braking.
Continued driving is possible but
have the brake lining replaced as
soon as possible.
Once new brake linings are installed,
do not brake unnecessarily hard for
the first few journeys.
Brake fluid9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
The brake fluid level must be betweenthe MIN and MAX marks.
If fluid level is below MIN seek the
assistance of a workshop.
Brake and clutch fluid 3 304.
Vehicle battery
The vehicle battery is maintenance-
free, provided that the driving profile
allows sufficient charging of the
battery. Short-distance-driving and
frequent engine starts can discharge
the battery. Avoid the use of
unnecessary electrical consumers.
Customer information329This data includes, for example:● Vehicle status information (e.g. wheel rotation rate, speed,
movement delay, lateral
acceleration, "seatbelts
fastened" display),
● Ambient conditions (e.g. temperature, rain sensor,
distance sensor).
Most of this data is volatile and is processed only in the vehicle itself,and not beyond the operating time.
Moreover, many control units include
data storage device (amongst others the vehicle key). This is used to allow
information to be documented
temporarily or permanently on vehicle
condition, component stress,
maintenance requirements and
technical events and errors.
The following information, for
example, is stored:
● System component operating states (e.g. fill level, tyre
pressure, battery status),
● State of charge of the high voltage battery, estimated range
(in the case of electric vehicles),● Faults and defects in important system components (e.g. lights,
brakes),
● System reactions in special driving situations (e.g. triggeringof an airbag, actuation of the
stability control systems),
● Information on events damaging the vehicle.
In special cases (e.g. if the vehicle
has detected a malfunction), it may be
necessary to save data that would
otherwise just be volatile.
When you use services, the operating data saved can be read together withthe vehicle identification number andused if necessary. Staff working for
the service net-work (e.g. garages,
manufacturers) or third parties (e.g.
breakdown services) can read the
data from the vehicle. Services
include repair services, maintenance
processes, warranty cases and
quality assurance measures.
Data is generally read via the OBD
(On-Board Diagnostics) port
prescribed by law in the vehicle. The operating data which has been read
out documents the technical conditionof the vehicle or individual
components and assists with fault
diagnosis, compliance with warranty
obligations and quality improvement.
This data, in particular information on
component stress, technical events,
operator errors and other faults, is
transmitted to the manufacturer
where appropriate, together with the vehicle identification number. The
manufacturer is also subject to
product liability. The manufacturer
potentially also needs operating data
from vehicles for product recalls.
Fault memories in the vehicle can be
reset by a service company when
carrying out servicing or repairs.
Comfort and infotainment
functions
Comfort settings and custom settings can be stored in the vehicle and
changed at any time.
333Brakes ............................... 213, 264
Breakdown.................................. 298
BringGo ...................................... 164
Bulb replacement ....................... 267
C
Call Functions during a call ............184
Incoming call ........................... 184
Initiating a phone call ..............184
Ring tone ................................. 184
Call history .................................. 184
Capacities .................................. 317
Cargo management system ........88
Car Pass ...................................... 21
Catalytic converter .....................205
Central locking system ................22
Centre console lighting ..............138
Centre console storage ...............69
Changing tyre and wheel size ...287
Charging system ........................ 112
Child locks ................................... 25
Child restraint installation locations ................................... 63
Child restraints.............................. 60
Child restraint systems ................60
Cigarette lighter .........................102
Climate control ............................. 16
Climate control systems .............189
Clock........................................... 100CNG.................................... 105, 247
Code ........................................... 122
Contacts ..................................... 171
Control elements Infotainment system ................142
Steering wheel ........................ 142
Control elements overview .........142
Control indicators........................ 108
Control of the vehicle .................198
Controls ........................................ 97
Convex shape .............................. 29
Coolant and antifreeze ...............304
Cruise control ....................116, 219
Cupholders .................................. 66
Curtain airbag system .................. 58
Curve lighting.............................. 134
D
DAB ............................................ 157
Danger, Warnings and Cautions ...4
Daytime running lights ...............133
Declaration of conformity ............322
DEF ............................................ 206
Destination input ........................171
Diesel exhaust fluid ....................206
Diesel fuel system bleeding .......266
Digital audio broadcasting ..........157
Displaying pictures .....................162
Display settings ..................162, 163
Door open .................................. 117Door panel storage.......................68
Doors ............................................ 25
Driver assistance systems ..........219
Driver Information Centre ...........117
Driving characteristics and towing tips .............................. 253
Driving hints ................................ 198
E Electric adjustment ......................29
Electrical system......................... 274
Electric parking brake .........113, 213
Electric parking brake fault .........113
Electronic climate control system 191
Electronic driving programmes ..210
Electronic Stability Control.......... 217
Electronic Stability Control and Traction Control system ..........114
Electronic Stability Control off..... 114
Emergency call ........................... 183
End-of-life vehicle recovery .......260
Engine compartment fuse box ...276
Engine coolant ........................... 262
Engine coolant temperature gauge ..................................... 107
Engine data ............................... 312
Engine exhaust .......................... 204
Engine identification ...................307
Engine oil ................... 261, 304, 308
Engine oil pressure ....................115