Driving and operating1859Warning
The driver accepts full
responsibility for the appropriate
following distance based on traffic, weather and visibility conditions.
Following distance must be
adjusted or the system switched
off when required by the prevailing
conditions.
Detecting the vehicle ahead
The green illuminated "vehicle
ahead" control indicator A is
displayed in the speedometer when the system detects a vehicle in the
driving path.
If this symbol does not appear, or
appears briefly, adaptive cruise
control will not respond to vehicles
ahead.
Deactivation
Adaptive cruise control is deactivated by the driver when:
● y is pressed.
● Brake pedal is applied.
● Clutch pedal is depressed for more than four seconds.
● Gear selector lever of automatic transmission is moved to N.
The system is also automatically deactivated when:
● Vehicle speed slows down below
28 mph or accelerates above
120 mph.
● Traction Control system is operating for more than
20 seconds.● Electronic Stability Control is operating.
● There is no traffic and nothing detected on the road sides forseveral minutes. In this case
there are no radar echoes and
the sensor may report that it is
blocked.
● Collision imminent braking system is applying the brakes.
● Radar sensor is blocked by an ice
or water film.
● A fault is detected in the radar, engine or brake system.
When adaptive cruise control is
deactivated automatically, the control indicator m illuminates white and a
warning symbol is displayed as a pop- up in the Driver Information Centre.
Driving and operating191
Press V; the current setting is shown
in the Driver Information Centre.
Press V again to change the alert
sensitivity.
Alerting the driver
A green illuminated vehicle ahead
control indicator A illuminates in the
instrument cluster when the system has detected a vehicle in the driving
path.
When the distance to a preceding
moving vehicle gets too small or when
approaching another vehicle too
rapidly and a collision is imminent, the
collision alert symbol pops-up in the
Driver Information Centre.
Simultaneously a warning chime
sounds. Depress the brake pedal, if it is required by the situation.
Deactivation
The system can be deactivated.
Press V repeatedly until the following
message appears in the Driver
Information Centre.
General information for both
variants of forward collision alert
9 Warning
Forward collision alert is just a
warning system and does not
apply the brakes. When
192Driving and operatingapproaching a vehicle ahead too
rapidly, it may not provide you
enough time to avoid a collision.
The driver accepts full
responsibility for the appropriate
following distance based on traffic, weather and visibility conditions.
The complete attention of the
driver is always required while
driving. The driver must always be
ready to take action and apply the
brakes.
System limitations
The system is designed to warn only for vehicles, but may react also onother metallic objects.
In the following cases, forward
collision alert may not detect a vehicle ahead or sensor performance is
limited:
● on winding roads
● when weather limits visibility, such as fog, rain, or snow
● when the sensor is blocked by snow, ice, slush, mud, dirt, or
windscreen damage
Following distance
indication
The following distance indication
displays the distance to a preceding
moving vehicle. The system uses,
depending on the vehicle equipment,
either the radar behind the radiator
grille or the front camera in the
windscreen to detect the distance of
a vehicle directly ahead in your lane.
It is active at speeds above 25 mph.
When a preceding vehicle is detected ahead, the distance is indicated inseconds, displayed on a page in the
Driver Information Centre 3 116.
Press MENU on the turn signal lever
to select Vehicle Information Menu
X and turn the adjuster wheel to
choose following distance indication
page.
The minimum indicated distance is 0.5 s.
If there is no vehicle ahead or the
vehicle ahead is out of range, two
dashes will be displayed: -.- s.
Active Emergency Braking Active emergency braking can help toreduce the damage 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 3 188.
Driving and operating193The 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
3 129.
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.9 Warning
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
Vehicle care223Vehicle careGeneral Information...................224
Accessories and vehicle modifications .......................... 224
Vehicle storage ........................224
End-of-life vehicle recovery .....224
Vehicle checks ........................... 225
Performing work ......................225
Bonnet ..................................... 225
Engine oil ................................. 226
Engine coolant ......................... 227
Power steering fluid .................228
Washer fluid ............................ 229
Brakes ..................................... 229
Brake fluid ............................... 229
Vehicle battery ......................... 229
Diesel fuel system bleeding .....231
Wiper blade replacement ........231
Bulb replacement .......................232
Halogen headlights ..................232
Adaptive forward lighting .........234
Fog lights ................................. 235
Tail lights ................................. 236
Side turn signal lights ..............238
Number plate light ...................239Interior lights ............................ 239
Instrument panel illumination ...240
Electrical system ........................240
Fuses ....................................... 240
Engine compartment fuse box . 241
Instrument panel fuse box .......243
Load compartment fuse box ....244
Vehicle tools .............................. 246
Tools ........................................ 246
Wheels and tyres .......................247
Winter tyres ............................. 247
Tyre designations ....................247
Tyre pressure .......................... 247
Tyre pressure monitoring system .................................... 248
Tread depth ............................. 251
Changing tyre and wheel size . 252
Wheel covers ........................... 252
Tyre chains .............................. 253
Tyre repair kit .......................... 253
Wheel changing .......................256
Spare wheel ............................ 258
Jump starting ............................. 262
Towing ....................................... 263
Towing the vehicle ...................263
Towing another vehicle ...........264Appearance care .......................265
Exterior care ............................ 265
Interior care ............................. 267
Vehicle care229Washer 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 3 270.
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.
300IndexAAccessories and vehicle modifications .......................... 224
Active Emergency Braking .........192
Active head restraints ...................37
Adaptive cruise control .......116, 182
Adaptive forward lighting ..115,
142, 234
AdBlue ........................ 114, 166, 270
Adjustable air vents ...................156
Airbag and belt tensioners .........110
Airbag deactivation ..............58, 111
Airbag label................................... 54
Airbag system .............................. 54
Air conditioning regular operation ................................ 157
Air conditioning system .............. 151
Air intake .................................... 157
Air vents...................................... 156
Antilock brake system ................ 173
Antilock brake system (ABS) .....112
Anti-theft alarm system ................26
Anti-theft locking system .............. 26
Appearance care ........................265
Armrest ......................................... 42
Armrest storage ........................... 69
Ashtrays ..................................... 103
Automatic anti-dazzle ..................30
Automatic light control ...............139
Automatic locking ........................24Automatic transmission .............169
Autostop ..................................... 161
Auxiliary heater ........................... 156
B Battery discharge protection ......149
Battery voltage ........................... 126
Bicycle rack .................................. 70
BlueInjection ............................... 166
Bonnet ....................................... 225
Brake and clutch fluid .................270
Brake and clutch system ...........111
Brake assist ............................... 175
Brake fluid .................................. 229
Brakes ............................... 173, 229
Breakdown.................................. 263
Bulb replacement ....................... 232
C Capacities .................................. 286
Cargo management system ........88
Car Pass ...................................... 20
Catalytic converter .....................165
Central locking system ................21
Centre console lighting ..............148
Centre console storage ...............70
Changing tyre and wheel size ...252
Charging system ........................ 111
Child locks ................................... 24
Child restraint installation locations ................................... 62