Page 200 of 281

198Driving and operating● weather limits visibility, such asfog, rain, or snow
● the camera lenses are blocked by snow, ice, slush, mud, dirt.Clean the lense, rinse with water,
and wipe with a soft cloth
● the tailgate will be opened
● the vehicle is towing an electrically connected trailer,
bicycle carrier, etc.
● the vehicle had a rear end accident
● there are extreme temperature changes
Lane keep assist
Lane keep assist helps to avoid
crashes due to unintentional lane
departures. A front camera located at the top of the windscreen observes
the lane markings between which the
vehicle is driving. If the vehicle
approaches a lane marking, the
steering wheel is gently turned to
position the vehicle back into the lane. The driver will then notice a turning
movement of the steering wheel. Turn steering wheel in same direction, ifsystem steers not sufficient. Turn
steering wheel gently into opposite
direction, if lane change is intended.
When the system steers to correct the trajectory of the vehicle, a flashes
yellow in the instrument cluster.
A warning message in the Driver
Information Centre accompanied by a
warning chime alerts the driver when
immediate driver´s action is required.
Unintended lane departure is not
assumed by the system when the turn lights are operated and during 20 s
after turn lights have been switched off.
Notice
The system may be switched off if it
detects lanes which are too narrow, too wide or too curved.
Following preconditions have to be
fullfilled:
● vehicle speed must be between 40 mph and 112 mph
● the driver must hold the steering wheel with both hands● the change of trajectory is notaccompanied by operation of theturn signals
● the Electronic Stability Control is activated and not in operation
● the vehicle is not connected to a trailer or an electric bicycle carrier
● normal driving behaviour (system
detects dynamic driving style, i.e. pressure on the brake or
accelerator pedal)
● roads with poor lane markings
● no spare wheel is used
● the driver needs to be active during the correction
● the vehicle is not driven in a tight
corner
Page 202 of 281

200Driving and operatingFault
In the event of a fault, a and H
appear in the instrument panel,
accompanied by a display message
and a warning chime. Contact a
dealer or a qualified workshop to have
the system checked.
System limitations
The system performance may be
affected by:
● windscreen not clean or affected by foreign objects, e.g. stickers
● close vehicles ahead
● banked roads
● narrow, winding or hilly roads
● road edges
● sudden lighting changes
● adverse environmental conditions, e.g. heavy rain or
snow
● vehicle modifications, e.g. tyresSwitch off the system if the system is
disturbed by tar marks, shadows,
road cracks, temporary or
construction lane markings, or other
road imperfections.9 Warning
Always keep your attention on the
road and maintain proper vehicle
position within the lane, otherwise
vehicle damage, injury or death
could occur.
Lane keep assist does not
continuously steer the vehicle.
The system may not keep the
vehicle in the lane or give an alert,
even if a lane marking is detected.
The steering of the lane keep
assist may not be sufficient to
avoid a lane departure.
The system may not detect hands-
off driving due to external
influences like road condition and
surface and weather. The driver has full responsibility to control the
vehicle and is always required to
keep the hands on the steering
wheel while driving.
Using the system while towing a
trailer or on slippery roads could
cause loss of control of the vehicle
and a crash. Switch the system off.
Driver alert
The driver alert system monitores the driving time and the vigilance of the
driver. Monitoring the vigilance of the
driver is based on the trajectory
variations of the vehicle compared to
the lane markings.
The system includes a driving time
alert combined with driver drowsiness detection.
9 Warning
The system cannot replace the
need for vigilance on the part of
the driver. Taking a break is
recommended as soon as feeling tired or at least every two hours.
Do not take the steering wheel
when feeling tired.
Page 278 of 281

276Glass panel .................................. 43
Glovebox ..................................... 69
Glovebox cooler ......................... 140 Graphic Info Display ...................116
H Halogen headlights ....................217
Hand brake ................................. 160
Hazard warning flashers ............124
Headlight flash ........................... 123
Headlight range adjustment ......124
Headlights................................... 121 Headlights when driving abroad 124
Head restraint adjustment .............8
Head restraints ............................ 44
Head-up display.......................... 112
Heated mirrors ............................. 38
Heated rear window ..................... 42
Heated steering wheel .................88
Heating ........................................ 49
Heating and ventilation system . 130
High beam ......................... 107, 122
High beam assist ................107, 122
Hill start assist ........................... 162
Horn ....................................... 13, 89
I
Identification plate .....................254
Ignition switch positions .............143
Immobiliser .................................. 36
Indicators ...................................... 97Inductive charging........................93
Info Display ................................. 111
Installing seats .............................. 51
Instrument cluster ........................95
Instrument panel fuse box .........226
Instrument panel illumination control .................................... 127
Instrument panel overview ........... 10
Interior care ............................... 247
Interior lighting ............................ 127
Interior lights ...................... 127, 224
Interior mirrors .............................. 38
Introduction .................................... 3
J
Jump starting ............................. 241
K
Keys ............................................. 20 Keys, locks ................................... 20
L
Ladder flap.................................... 74
Lane keep assist ................104, 198
Lashing eyes ............................... 78
LED headlights ...................107, 219
Lighting features .........................128
Light switch ................................ 121
Load compartment ................31, 74
Load compartment cover .............75
Load compartment grille ...............81Loading............................. 47, 50, 51
Loading information .....................85
Low beam ................................... 107
Low fuel ..................................... 106
M Malfunction indicator light ..........102
Manual anti-dazzle ......................38
Manual mode ............................. 156
Manual transmission .................. 158
Mirror adjustment ........................... 8
Misted light covers .....................126
Multimedia .................................. 116
Multimedia Navi Pro ...................116
N New vehicle running-in ..............143
Number plate light .....................224
O Object detection systems ...........183
Odometer ..................................... 98
Oil, engine .......................... 252, 256
Outside temperature ....................91
Overhead console .......................71
Overrun cut-off ........................... 147
P Panoramic view system ..............193
Parking ................................ 19, 150
Parking assist ............................ 183