178Driving and operatingActivation of the functionality
Accelerate to the desired speed and
turn thumb wheel to SET/-, the
current speed is stored and
maintained. Control indicator m in
instrument cluster illuminates green.
On Mid- and Uplevel display m
illuminates green and set speed is
indicated. Accelerator pedal can be
released.
Vehicle speed can be increased by
depressing the accelerator pedal.
When the accelerator pedal is
released, the previously stored speed
is resumed.
Cruise control remains activated
while gearshifting.
Increase speed
With cruise control active, hold thumb
wheel turned to RES/+ or briefly turn
to RES/+ repeatedly: speed
increases continuously or in small
increments.
Alternatively accelerate to the desired speed and store by turning to SET/-.
Reduce speed With cruise control active, hold thumb
wheel turned to SET/- or briefly turn to
SET/- repeatedly: speed decreases
continuously or in small increments.
Deactivation of the functionality
Press y; control indicator m in
instrument cluster illuminates white.
On Mid- or Uplevel display m
changes to white.
Cruise control is deactivated, but not
switched off. Last stored speed
remains in memory for later speed
resume.Automatic deactivation:
● Vehicle speed is below approx. 20 mph.
● Vehicle speed drops more than 15 mph below the set speed.
● The brake pedal is depressed.
● The clutch pedal is depressed for
a few seconds.
● The selector lever is in N.
● Engine speed is in a very low range.
● The Traction Control system or Electronic Stability Control is
operating.
● Parking brake is applied.
● Simultaneous pressing RES/+
and brake pedal deactivates
cruise control and will delete stored speed.
Resume stored speed
Turn thumb wheel to RES/+ at a
speed above 20 mph. The stored
speed will be obtained.
Driving and operating185Detecting the vehicle ahead
The green illuminated vehicle ahead
control indicator A is displayed when
the system detects a vehicle in the driving path. The range of the sensors
is between 25 and 150 m depending
on vehicle speed.
Forward collision alert 3 189.
If this symbol does not display, or
displays briefly, adaptive cruise
control will not respond to vehicles
ahead.
Indication on Driver Assistance page
If the system is active and a preceding vehicle is detected, the bars in front of the vehicle symbol appear green and
indicate set gap position.
Deactivation of the functionality
Adaptive cruise control is deactivated by the driver when:
● y is pressed.
● Brake pedal is applied.
● Clutch pedal is depressed for more than 4 seconds.
● Selector lever of automatic transmission is moved to N.
The system is also automatically
deactivated when:
● Vehicle speed accelerates above
120 mph or slows down below
15 mph. Vehicles with automatic
transmission slows down to a
stop without deactivating within
5 minutes.
● The Traction Control system is deactivated or operating.
● The Electronic Stability Control is
deactivated or operating.
● There is no traffic and nothing detected on the road sides forapprox. 1 minute. In this case
there are no radar echoes and
the sensor may report that it is blocked.
● The active emergency braking system is applying the brakes.
● Driving on steep inclines.
● The radar sensor is blocked by an ice or water film.
● A fault is detected in the radar, camera, engine or brake system.
● The brakes need to cool down.
186Driving and operatingAdditionally, the system is
automatically deactivated on vehicles
with automatic transmission (full
speed range adaptive cruise control)
when:
● The incline uphill or downhill is greater than 20%.
● The electric parking brake is applied.
● The vehicle is being held to a stop
by the system for more than
5 minutes.
● The vehicle stops, the driver's seat belt is unbuckled and thedriver's door is opened.
When adaptive cruise control is
deactivated, the control indicator C
changes from green to white and a
pop-up message is displayed in the
Driver Information Centre.
The stored speed is maintained.The stored speed is indicated in
brackets in the Driver Information
Centre when the system is
deactivated but not switched off.
The adaptive cruise control symbol
C changes from green to white when
the system is deactivated but not
switched off.9 Warning
When adaptive cruise control is
deactivated, the driver must take
over full brake and engine control
immediately.
Switching off the system
Press v to switch off adaptive cruise
control. The control indicator C
extinguishes in the Driver Information Centre. The stored speed is deleted.
Switching off the ignition also
switches off adaptive cruise control
and deletes the stored speed.
Driver's attention
● Use adaptive cruise control carefully on bends or mountain
roads, as it can lose the vehicle
ahead and needs time to detect it again.
● Do not use the system on slippery roads as it can create
rapid changes in tyre traction
(wheel spinning), so that you
could lose control of the vehicle.
● Do not use adaptive cruise control during rain, snow or
heavy dirt, as the radar sensor
can be covered by a water film,
dust, ice or snow. This reduces or suppresses completely the
visibility. In case of sensor
blockage, clean the sensor
cover.
307Child restraint systems ................64
Climate control ............................. 15
Clock............................................. 92
Collision damage repair ..............299
Control indicators........................ 104
Control of the vehicle .................151
Controls ........................................ 88
Convex shape .............................. 37
Coolant and antifreeze ...............277
Cruise control ....................109, 177
Cupholders .................................. 73
Curtain airbag system .................. 62
Curve lighting.............................. 132
D Danger, Warnings and Cautions ...4
Daytime running lights ...............132
Declaration of conformity ............295
DEF ............................................ 161
Diesel exhaust fluid ....................161
Diesel fuel system bleeding .......236
Door open .................................. 110
Doors ............................................ 29
Driver assistance systems ..........177
Driver Information Centre ...........110
Driving characteristics and towing tips .............................. 224
Driving hints ................................ 151E
Electric adjustment ......................37
Electrical system......................... 247
Electric parking brake .........106, 170
Electric parking brake fault .........106
Electronic climate control system 142
Electronic driving programmes ..166
Electronic key system ...................22
Electronic Stability Control.......... 174
Electronic Stability Control and Traction Control system ..........107
Electronic Stability Control off..... 107
Emergency call ........................... 126
End-of-life vehicle recovery .......229
Engine compartment fuse box ...248
Engine coolant ........................... 232
Engine coolant temperature ......107
Engine coolant temperature gauge ..................................... 102
Engine data ............................... 284
Engine exhaust .......................... 159
Engine identification ...................280
Engine oil ................... 231, 277, 281
Engine oil pressure ....................108
Entry lighting .............................. 137
Event data recorders ..................302
Exhaust filter ............................... 159
Exit lighting ................................ 137
Exterior care .............................. 272
Exterior light ............................... 109Exterior lighting ....................12, 128
Exterior mirrors ............................. 37
F
Fault ........................................... 167
First aid kit ................................... 84
Fixed air vents ........................... 149
Floor mats................................... 275
Folding mirrors ............................. 38
Following distance ......................107
Following distance indication ......192
Forward collision alert................. 189
Front airbag system .....................61
Front fog lights ...........109, 134, 239
Front pedestrian protection ........196
Front seats.................................... 47
Front storage ................................ 74
Fuel............................................. 220
Fuel for diesel engines ..............221
Fuel for petrol engines ...............220
Fuel gauge ................................. 102
Funnel......................................... 222
Fuses ......................................... 247
G Gauges ....................................... 100
Gear selection ........................... 164
Gear shifting ............................... 107
General information ...................224
Glovebox ..................................... 73
309Performing work ........................230
Power button .............................. 152
Power outlets ............................... 93
Power seat adjustment ................50
Power windows ............................ 40
Preheating ................................. 108
Puncture ..................................... 264
Q Quickheat ................................... 148
R Radio Frequency Identification (RFID) ..................................... 305
Radio remote control ...................21
REACH ....................................... 299
Reading lights ............................ 136
Rear cross traffic alert ................212
Rear floor storage cover ..............80
Rear fog light .............109, 134, 241
Rear seats .................................... 55
Rear storage ................................. 78
Rear view camera ...................... 210
Rear window wiper and washer ..91
Recommended fluids and lubricants ........................ 277, 281
Refuelling ................................... 222 Registered trademarks ...............301
Retained power off .....................154
Reversing lights .........................135
Ride control systems ..................173Roof.............................................. 43
Roof load ...................................... 85
Roof rack ..................................... 85
S
Safety belts ................................... 56
Safety net .................................... 81
Seat adjustment ............................. 6 Seat belt ........................................ 8
Seat belt reminder .....................104
Seat belts ..................................... 56
Seat heating Seat heating, front .....................54
Seat heating, rear .....................55
Seat position ................................ 47
Selective catalytic reduction .......161
Selector lever.............................. 164
Service ............................... 149, 276
Service display .......................... 103
Service information ....................276
Side airbag system ......................62
Side blind spot alert ....................205
Sidelights .................................... 128
Side turn lights ........................... 246
Software acknowledgement .......299
Software update ......................... 301
Spare wheel ............................... 264
Speed limiter....................... 110, 179 Speedometer ............................. 100
Starting and operating ................151Starting off ................................... 17
Starting the engine ....................154
Steering ...................................... 151
Steering wheel adjustment ......9, 88
Steering wheel controls ...............88
Stop-start system........................ 156
Storage ......................................... 73
Storage compartments .................73
Sunglasses storage .....................74
Sunroof ........................................ 43
Sunvisor lights ........................... 137
Sun visors .................................... 43
Symbols ......................................... 4
T
Tachometer ............................... 102
Tail lights ................................... 241
Three-point seat belt .................... 57
Tools .......................................... 252
Tow bar....................................... 224 Towing ................................ 224, 270
Towing another vehicle .............271
Towing equipment .....................225
Towing hitch installation dimensions ............................. 293
Towing the vehicle .....................270
Traction Control system ............. 173
Traction Control system off......... 107
Traffic sign assistant ...........110, 213
Trailer coupling ........................... 224