Driving and operating193
Press E, the current setting is shown
in the Driver Information Centre.
Press E again to change the alert
sensitivity. The setting is also displayed in the Driver Information
Centre.Note that the alert timing sensitivity
setting is shared with the following
distance setting of the adaptive cruise control 3 184. So changing the alert
timing sensitivity changes the
adaptive cruise control following
distance setting.
Alerting the driver
The vehicle ahead control indicator A illuminates green in the instrument
cluster when the system has detected
a vehicle in the driving path.
The control indicator A changes to
yellow when the distance to a
preceding moving vehicle gets too
short or when approaching another
vehicle too rapidly.Caution
The colour lighting of this control
indicator does not correspond to
local traffic laws on following
distance. The driver bears full
responsibility for maintaining safe
following distance according to
applicable traffic rules, weather
and road conditions etc. at all
times.
If a collision is imminent, the collision
alert symbol pops-up in the Driver
Information Centre and a warning
chime sounds. Depress the brake
pedal if it is required by the situation.
Driving and operating195General information for both
variants of forward collision alert9 Warning
Forward collision alert is just a
warning system and does not
apply the brakes. When
approaching 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
Forward collision alert is designed to warn for vehicles only, but may also
react to other objects.
In the following cases, forward
collision alert may not detect a vehicle ahead or sensor performance may be 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,
windscreen damage or affected
by foreign items, e.g. stickers
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 path. It is active at speeds above 40 km/h.
When a preceding vehicle is detected
ahead, the distance is indicated in
seconds, displayed on a page in the
Driver Information Centre 3 111.On Baselevel display set Settings
X with the Menu button and select
Following distance indication via the
adjuster wheel on the turn signal lever
3 111.
On Midlevel or Uplevel display, select
Info menu and press o to select
Following distance indication 3 111.
The minimum indicated distance is
0.5 seconds.
If 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 following
distance setting instead 3 184.
252Vehicle careNo.Circuit1Central locking system/Elec‐
tronic key system2Trailer module (type A)
Infotainment system (type B)3–4–5Trailer socket6Heated steering wheel (only
vehicles with load compartment
fuse box)7Selective catalytic reduction
system8Trailer socket9Sunroof10Central locking system/Tailgate
(type A)
Sunroof (type B)11–12Selective catalytic reduction
systemNo.Circuit13–14–15Power tailgate lock16Air conditioning system17Selective catalytic reduction
system18Selective catalytic reduction
system19Side obstacle detector20Side obstacle detector/Venti‐
lated front seats21Active damping system/Cruise
control/Traffic sign assistant/
Lane departure warning/Trailer
module22–23All-wheel drive/Anti-theft alarm
system24–25–
320IndexAAccessories and vehicle modifications .......................... 227
Active emergency braking ..........196
Active head restraints ...................47
Adaptive cruise control .......110, 184
Adaptive forward lighting ...110, 133
AdBlue ................................ 108, 165
Adjustable air vents ...................152
Airbag and belt tensioners .........105
Airbag deactivation ..............63, 105
Airbag label................................... 58 Airbag system .............................. 58
Air conditioning regular operation ................................ 154
Air conditioning system .............. 141
Air intake .................................... 153
Air vents...................................... 152
All-wheel drive ........................... 173
Antilock brake system ................ 174
Antilock brake system (ABS) .....107
Anti-theft alarm system ................35
Anti-theft locking system .............. 34 Appearance care ........................272
Armrest ................................... 53, 54
Armrest storage ........................... 71
Ashtrays ....................................... 93 Automatic anti-dazzle ..................40
Automatic climate control system .................................... 143Automatic dimming ......................39
Automatic light control ...............130
Automatic locking ........................28
Automatic transmission .............168
Automatic transmission fluid .......230
Autostop ............................. 110, 160
Auxiliary heater ........................... 152
B
Baselevel display ........................111
Battery discharge protection ......140
Battery voltage ........................... 121
Belts.............................................. 55
BlueInjection ............................... 165
Bonnet ....................................... 228
Brake and clutch fluid .................276
Brake and clutch system ...........106
Brake assist ............................... 176
Brake fluid .................................. 233
Brakes ............................... 174, 233
Breakdown.................................. 268
Bulb replacement ....................... 236
C Capacities .................................. 294
Cargo management system ........77
Car Pass ...................................... 22
Catalytic converter .....................165
Central locking system ................25
Centre console lighting ..............139
Changing tyre and wheel size ...258
321Charging system ........................ 105
Child locks ................................... 29
Child restraint installation locations ................................... 66
Child restraints.............................. 64
Child restraint systems ................64
Climate control ............................. 16
Climate control systems .............141
Clock............................................. 90
Collision damage repair ..............316
Colour-Info-Display .....................118
Control indicators........................ 104
Control of the vehicle .................156
Controls ........................................ 86
Convex shape .............................. 38
Coolant and antifreeze ...............276
Cruise control ....................110, 181
Cupholders .................................. 70
Curtain airbag system .................. 62
Curve lighting.............................. 133
D Danger, Warnings and Cautions ...4
Daytime running lights ...............132
Declaration of conformity ............313
DEF ............................................ 165
Diesel exhaust fluid ....................165
Diesel fuel system bleeding .......235
Diesel particle filter .............108, 164
Door open .................................. 111Doors............................................ 30
Driver assistance systems ..........181
Driver Information Centre ...........111
Driving characteristics and towing tips .............................. 222
Driving hints ................................ 156
Dual automatic climate control system ..................................... 148
E Electric adjustment ......................38
Electrical system......................... 246
Electric parking brake .........106, 175
Electric parking brake fault .........106
Electronic driving programmes ..171
Electronic key system ...................23
Electronic Stability Control.......... 177
Electronic Stability Control and Traction Control system ..........108
Electronic Stability Control off..... 108
End-of-life vehicle recovery .......228
Engine compartment fuse box ...248
Engine coolant ........................... 231
Engine coolant temperature ......108
Engine coolant temperature gauge ..................................... 102
Engine data ............................... 284
Engine exhaust .......................... 164
Engine identification ...................280
Engine oil ................... 229, 276, 281Engine oil pressure ....................109
Entry lighting .............................. 139
Event data recorders ..................318
Exit lighting ................................ 139
Exterior care .............................. 272
Exterior light ............................... 110
Exterior lighting ....................13, 129
Exterior mirrors ............................. 38
F
Fault ........................................... 172
First aid ......................................... 81
First aid kit ................................... 81
Fixed air vents ........................... 153
Fog light ..................................... 110
Fog lights ................................... 241
Folding mirrors ............................. 38
Following distance ......................107
Following distance indication ......195
Forward collision alert................. 192
Front airbag system .....................61
Front fog lights ........................... 136
Front seats.................................... 48
Front storage ................................ 71
Front turn signal light ..................237
Fuel............................................. 214
Fuel consumption - CO 2-
Emissions ............................... 221
Fuel for diesel engines ..............215
Fuel for liquid gas operation .......215