Driving and operating189consult a workshop to verify and
correct the adaptive cruise control sensor position.
Settings
Settings can be changed in the Auto
collision preparation menu in the
vehicle personalisation, 3 131.
Fault
If the adaptive cruise control does not work due to temporary conditions
(e.g. blockage by ice) or if there is a
permanent system error, then a
message is displayed in the DIC.
Vehicle messages 3 125.
Forward collision alert The forward collision alert can help to
avoid or reduce the harm caused by
front-end crashes.
A vehicle ahead is indicated by a
control indicator A.
If a vehicle directly ahead is
approached too quickly, a warning
chime and alert in the Driver
Information Centre (DIC) is provided.
A precondition is that forward collision
alert is activated in the vehicle
personalisation menu 3 131 or that it
is not deactivated by pressing V
(depending on the system, see
following).
Depending on the vehicle's
equipment, there are two variants of
the forward collision alert available:
■ Forward collision alert based on
radar system
190Driving and operating
on vehicles equipped with adaptivecruise control 3 182.
■ Forward collision alert based on
front camera system
on vehicles with traditional cruise control or none 3 179.
Forward collision alert based on
radar system The system uses the radar sensor
behind the radiator grille to detect a
vehicle directly ahead, in your path,
within a maximum distance of
150 metres.
Activation
Forward collision alert operates
automatically above walking speed,
provided that Auto collision
preparation setting is not deactivated
in the vehicle personalisation menu
3 131.
Selecting the alert sensitivity
The alert sensitivity can be set to
near, medium or far.
Press E; the current setting is shown
in the DIC. Press E again to change
the alert sensitivity. The setting is also
displayed in the top line of the DIC.
Note that the alert timing sensitivity
setting is shared with the following distance setting of the adaptive cruise control. So changing the alert timing
sensitivity changes the adaptive
cruise control following distance
setting.
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 care253
No.Circuit15Engine control module16Starter17Transmission control module18Heated rear window19Front power windows20Rear power windows21Rear electrical centre22Left high beam (Halogen)23Headlamp washer system24Right low beam (Xenon)25Left low beam (Xenon)26Front fog lights27Diesel fuel heating28Start stop system29Electric parking brake30ABS31Adaptive cruise controlNo.Circuit32Airbag33Adaptive forward lighting/Auto‐
matic light control34Exhaust gas recirculation35Exterior mirror/Rain sensor36Climate control37Canister vent solenoid38Vacuum pump39Central control module40Windscreen washer/Rear
window washer system41Right high beam (Halogen)42Radiator fan43Windscreen wiper44Windscreen wiper45Radiator fan46–No.Circuit47Horn48Radiator fan49Fuel pump50Headlamp levelling/Adaptive
forward lighting51Air shutter52Auxiliary heater/Diesel engine53Transmission control module/
Engine control module54Vacuum pump/Instrument
panel cluster/Heating ventila‐
tion/Air conditioning system
After having changed defective fuses,
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunction may occur.
330IndexAAccessories and vehicle modifications .......................... 223
Active Emergency Braking .........193
Active head restraints ..................38
Adaptive cruise control .......118, 182
Adaptive forward lighting ..117,
139, 235
Adjustable air vents ...................157
Airbag and belt tensioners .........112
Airbag deactivation ..............51, 112
Airbag system .............................. 49
Air conditioning regular operation ................................ 158
Air conditioning system .............. 150
Air intake .................................... 158
Air vents...................................... 157
Antilock brake system ................ 171
Antilock brake system (ABS) .....114
Anti-theft alarm system ................27
Anti-theft locking system .............. 27
Appearance care ........................280
Armrest .................................. 45, 46
Armrest storage ........................... 61
Ashtrays ..................................... 106
Automatic anti-dazzle ..................31
Automatic light control ...............137
Automatic locking ........................24Automatic transmission .............167
Auxiliary heater ........................... 157
B Battery discharge protection ......147
Battery voltage ........................... 128
Belts.............................................. 46
Bicycle rack .................................. 63
Bonnet ....................................... 225
Brake and clutch fluid .................285
Brake and clutch system ...........113
Brake assist ............................... 173
Brake fluid .................................. 228
Brakes ............................... 171, 228
Breakdown.................................. 278
Bulb replacement ....................... 231
C Capacities .................................. 304
Cargo management system ........90
Car Pass ...................................... 20
Catalytic converter .....................166
Central locking system ................22
Centre console lighting ..............146
Centre console storage ...............62
Changing tyre and wheel size ...264
Charging system ........................ 113
Child locks ................................... 24
Child restraint installation locations ................................... 55
331
Child restraints.............................. 53
Child restraint systems ................53
Cigarette lighter .........................106
Climate control ............................. 15
Climate control systems .............149
Clock........................................... 104
Code ........................................... 125
Control indicators........................ 110
Control of the vehicle .................159
Controls ........................................ 99
Convex shape .............................. 30
Coolant and antifreeze ...............285
Cruise control ....................118, 179
Cupholders .................................. 59
Curtain airbag system .................. 51
Curve lighting.............................. 139
D Danger, Warnings and Cautions ...4
Daytime running lights ...............139
Declaration of conformity ............325
Diesel fuel system bleeding .......230
Diesel particle filter .............116, 165
Door open .................................. 118
Doors ............................................ 25
Driver assistance systems ..........179
Driver Information Centre ...........118
Driving characteristics and towing tips .............................. 217
Driving hints ................................ 159E
Electric adjustment ......................30
Electrical system......................... 251
Electric parking brake .........114, 172
Electric parking brake fault .........114
Electronic climate control system 152
Electronic driving programmes ..169
Electronic Stability Control.......... 175
Electronic Stability Control and Traction Control system ..........115
Electronic Stability Control off .... 115
End-of-life vehicle recovery .......224
Engine compartment fuse box ...252
Engine coolant ........................... 226
Engine coolant temperature gauge ..................................... 108
Engine data ............................... 292
Engine exhaust .......................... 165
Engine identification ...................288
Engine oil ................... 225, 285, 289
Engine oil pressure ....................116
Entry lighting .............................. 146
Event data recorders ..................328
Exit lighting ................................ 147
Exterior care .............................. 280
Exterior light ............................... 117
Exterior lighting ....................13, 136
Exterior mirrors ............................. 30F
Fault ........................................... 169
First aid ......................................... 95
First aid kit ................................... 95
Fixed air vents ........................... 157
Flex-Fix system ............................ 63
Fog light ..................................... 118
Fog lights ................................... 236
Folding mirrors ............................. 30
Following distance indication ......192
Forward collision alert................. 189
Front airbag system .....................49
Front fog lights ........................... 143
Front seats.................................... 39
Front storage ................................ 60
Front turn signal lights ...............238
Fuel............................................. 210
Fuel consumption - CO 2-
Emissions ............................... 216
Fuel for diesel engines ..............211
Fuel for liquid gas operation .......211
Fuel for petrol engines ...............210
Fuel gauge ................................. 108
Fuel selector .............................. 108
Fuses ......................................... 251
G
Gauges ....................................... 107
General information ...................217