
Driving and operating163
Do not use the cruise control if it is notadvisable to maintain a constant
speed.
Illustrations show different versions.
On vehicles with automatic
transmission or manual transmission
automated cruise control can be
activated in automatic mode and
manual mode.
Control indicator m 3 96.
Switching on
Press m; control indicator m in
instrument cluster illuminates white.
Activation
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.
Set speed is indicated on the display. 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/-.

164Driving and operating
Reduce speedWith cruise control active, hold thumb
wheel turned to SET/- or briefly turn to
SET/- repeatedly: speed decreases
continuously or in small increments.
Deactivation Press y; control indicator m in
instrument cluster illuminates white. Cruise control is deactivated. 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.Switching off
Press m, control indicator m in
instrument cluster extinguishes. The
stored speed is deleted.
Pressing L to activate the speed
limiter or switching off the ignition also switches off cruise control and
deletes the stored speed.
Speed limiter
The speed limiter prevents the
vehicle exceeding a preset maximum
speed.
The maximum speed can be set at
speeds above 15 mph up to
125 mph.
The driver can only accelerate up to
the preset speed. Deviations from the
limited speed may occur when driving
downhill.
The preset speed limit is displayed in
the Driver Information Centre when
the system is active.

Driving and operating167
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
small 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.
When the time to a potential collision
with a vehicle in front gets too small
and a collision is imminent, the
collision alert symbol pops-up in the
Driver Information Centre and the
driver gets notified by a flashing red
LED stripe which is projected on the
windscreen in the driver's field of
view.
Simultaneously a warning chime sounds. Depress the brake pedal and
steer the vehicle, if it is required by the
situation.
Deactivation The system can be deactivated.
Press V repeatedly until Forward
Collision Alert Off appears in the
Driver Information Centre.
If the forward collision alert was
deactivated, alert sensitivity is set to
"medium" when ignition is switched
on next time.
The settings "near", "medium" or "far" will be stored when the ignition is
switched off.

186Driving and operatingActivation
The lane keep assist is activated by
pressing a. The illuminated LED in
the button indicates that the system is switched on.
When the control indicator a in the
instrument cluster illuminates green,
the system is ready to assist.
The system is operable at vehicle
speeds between 37 mph and
112 mph and if lane markings are
available.
The system gently turns the steering
wheel and the control indicator a
changes to yellow, if the vehicle
approaches a detected lane marking
without using the turn signal in that
direction.
The system alerts by flashing a
together with three chimes, from the
respective direction, if the lane is
departed significantly.
The system can not operate when no
lane marking is detected.
If the system only detects lane
markings on one side of the road, it
will only assist for this side.
Lane keep assist detects hands-off
driving. In this case a message in the
Driver Information Centre pops up
and a chime sounds as long as lane
keep assist detects hands-off driving.Deactivation
The system is deactivated by
pressing a, the LED in the button
extinguishes.
Fault
The system performance may be affected by:
● Windscreen not clean or affected
by foreign items, e.g. stickers
● Close vehicles ahead
● Banked roads
● Winding or hilly roads
● Road edges
● Roads with poor lane markings
● Sudden lighting changes
● Adverse environmental conditions like heavy rain or
snow
● Vehicle modifications, e.g. tyres.
Switch off the system, if the system is
faulted by tar marks, shadows, road
cracks, temporary or construction
lane markings, or other road
imperfections.

Vehicle care213No.Circuit46Instrument cluster47Steering column lock48Rear wiper49Heated mirror50LED headlight right/Automatic
headlight range adjustment
right51Left low beam (LED)52Engine control module/Trans‐
mission control module53–54Windscreen wiper55–56–57–
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.
Instrument panel fuse box
The fuse box is located behind a
cover.
Pull the cover and remove.
Vehicles with power connector:
If the fuse cover has a power
connector, it must be removed by
using an adapter and a screwdriver.
The adapter is stowed in the glovebox 3 65 . The screwdriver is stowed in the
load compartment 3 217.
Attach the adapter to the power
connector.

Vehicle care215No.Circuit32Transmission control module
(only on vehicles with stop-start
system)33Anti-theft alarm system/Alarm
horn34Parking assist/Side blind spot alert/Infotainment system/USB
socket35OnStar36Info display/Instrument cluster/
CD player37Infotainment system, radio
After having changed defective fuses,
close the fuse box cover and press
until it engages.
Vehicles with power connector: 1. Apply the cover on the right side.
2. Fold the left side of the cover forwards. Take care that the
securing clamp is guided as
shown in the illustration.
Load compartment fuse box
The fuse box is located on the left side
of the load compartment behind a
cover.Remove the cover.
Disengage the fuse box cover and
remove it.

238Vehicle careClean the leather upholstery with
clear water and a soft cloth. In case of heavy soiling, use leather care.
The instrument cluster and the
displays should only be cleaned using
a soft damp cloth. If necessary use a
weak soap solution.
Clean fabric upholstery with a
vacuum cleaner and brush. Remove
stains with an upholstery cleaner.
Clothing fabrics may not be
colourfast. This could cause visible
discolourations, especially on light-
coloured upholstery. Removable
stains and discolourations should be
cleaned as soon as possible.
Clean seat belts with lukewarm water or interior cleaner.Caution
Close Velcro fasteners as open
Velcro fasteners on clothing could damage seat upholstery.
The same applies to clothing with
sharp-edged objects, like zips or
belts or studded jeans.
Plastic and rubber parts
Plastic and rubber parts can be
cleaned with the same cleaner as
used to clean the body. Use interior cleaner if necessary. Do not use any
other agent. Avoid solvents and petrol in particular. Do not use high-
pressure jet cleaners.

262Head restraints ............................ 40
Heated mirrors ............................. 34
Heated rear window ..................... 38
Heated steering wheel .................76
Heating .................................. 47, 49
Heating and ventilation system . 128
High beam ........................... 96, 118
High beam assist ..........................96
Hill start assist ........................... 159
Horn ....................................... 13, 76
I
Identification plate .....................242
Ignition switch positions .............139
Immobiliser ............................ 33, 96
Indicators ...................................... 87
Info display ................................. 102
Information displays...................... 97
Instrument cluster ........................84
Instrument panel fuse box .........213
Instrument panel illumination .....210
Instrument panel illumination control .................................... 125
Instrument panel overview ........... 10
Interior care ............................... 237
Interior lighting ............................ 125
Interior lights ...................... 125, 210
Interior mirrors .............................. 35
Interruption of power supply ......152
Introduction .................................... 3J
Jump starting ............................. 232
K Key, memorised settings ..............23
Keys ............................................. 19
Keys, locks ................................... 19
L
Lane keep assist ..................94, 185
Lashing eyes ............................... 70
LED headlights .....................96, 119
Lighting features .........................126
Light switch ................................ 117
Load compartment ................29, 67
Load compartment cover .............69
Load compartment fuse box ......215
Loading information .....................72
Low fuel ....................................... 95
M
Malfunction indicator light ............93
Manual anti-dazzle ......................35
Manual mode .....................151, 155
Manual seat adjustment ...............42
Manual transmission .................. 153
Manual transmission automated 154
Manual windows ..........................36
Massage ....................................... 48
Maximum speed ......................... 218
Memorised settings ......................23Mirror adjustment ........................... 9
Misted light covers .....................124
N
New vehicle running-in ..............139
Number plate light .....................209
O Object detection systems ...........170
Odometer ..................................... 88
Oil, engine .......................... 240, 244
OnStar ........................................ 113
Outside temperature ....................79
Overrun cut-off ........................... 144
P Parking ................................ 18, 147
Parking assist ............................ 170
Parking brake ............................ 157
Parking lights ............................. 124
Particulate filter ........................... 148
Performance .............................. 249
Performing work ........................196
Pollen filter ................................. 137
Power button .............................. 140
Power connector........................... 82
Power outlets ............................... 81
Power seat adjustment ................44
Power windows ............................ 36
Preheating ................................... 95
Puncture ..................................... 227