Page 163 of 388
04 Comfort and driving pleasure
Trip computer
04
* Option/accessory, for more information, see Introduction.163
2.
Press and hold RESET for
approx. 1 second to reset the selected
function. If RESET is kept depressed for at
least 3 three seconds then Average speed
and Average are reset simultaneously.
Current speed*1
The instrument panel display shows current
speed in mph if the speedometer is graduated
in km/h. If the speedometer is graduated in
mph then the current speed is shown in km/h.
1Only certain markets.
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04 Comfort and driving pleasure
Driver Alert System – DAC*
04
196* Option/accessory, for more information, see Introduction.
Operation
Some settings are made from the centre con-
sole display screen and its menu system. For
information on how the menu system is used,
see page 142.
The current status can be checked on the trip
computer display with the left-hand stalk
switch.
Thumbwheel. Turn until the display showsDriver
Alert. On the second line, the options Off,Standby <65 km/h, Unavailable or Level
mark are shown.
READ confirms or clears a warning in the
memory.
Activating Driver Alert ControlUsing the centre console display screen with
its menu system MY CAR, search and locate
Car settings
Driver Alert. Select the On
option. For information on how the menu sys-
tem is used - see page 142.
The function is activated when speed
exceeds 65 km/h and remains active
as long as the speed is over
60 km/h.
The display shows a level mark with 1-5 bars,
where a low number of bars indicates incon-
sistent driving style. A high number of bars
indicates stable driving.
If the vehicle is driven inconsistently then the
driver is alerted by an acoustic signal as well as
the text message
Driver Alert Time for a
break. The warning is repeated after a time if
driving ability does not improve.
WARNING
An alarm should be taken very seriously, as
a sleepy driver is often not aware of his/her
own condition.
In the event of an alarm or a feeling of tired-
ness; stop the car in a safe manner as soon
as possible and rest.
Studies have shown that it is equally as dan-
gerous to drive while tired as it is under the
influence of alcohol.
Symbols and messages in the display
SymbolMessageSpecification
Driver Alert OFFFunction not switched on.
Driver Alert Standby
<65 km/hThe function is set in standby mode due to speed being lower than 65 km/h.
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Page 198 of 388

04 Comfort and driving pleasure
Driver Alert System - LDW*
04
198* Option/accessory, for more information, see Introduction.
General information on Lane Departure
Warning - LDW
The function is intended to reduce the risk for
single-vehicle accidents – accidents where, in
certain situations, the vehicle leaves the car-
riageway and is in danger of driving either into
a ditch or into oncoming traffic.
LDW consists of a camera that detects the side
markings painted on the carriageway. The
driver is alerted by an acoustic signal if the
vehicle crosses a side marking.
Operation and function
The function is switched on or off by means of
a switch on the centre console. An indicator
lamp in the button illuminates when the func-
tion is switched on.
The trip computer display shows
Lane Depart
Warn Standby <65 km/h when the function is
in standby mode due to speed being below 65
km/h.
The LDW function is activated automatically
from standby mode after the camera has scan-
ned in the carriageway's side markings and
speed exceeds 65 km/h. The trip computer
display then shows
Lane Depart Warn
Available.If the camera can no longer detect the carria-
geway's side markings the display shows
Lane Depart Warn Unavailable.
If speed decreases to below 60 km/h then the
function resumes standby mode and the dis-
play shows
Lane Depart Warn Standby
<65 km/h.
If the vehicle crosses the left or right-hand side
marking of the carriageway without due cause
then the driver is alerted by an acoustic signal.
No warning is given in the following situations:
•Direction indicators activated
•The driver has his/her foot on the brake
pedal1
•In the event of the accelerator pedal being
depressed rapidly1
•In the event of rapid steering wheel move-
ments1
•In the event of a sudden turn so that the car
rolls.
The camera sensor also has certain limitations.
For more information, see page 191.
1A warning is still given when Increased sensitivity is selected, see page 200.
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Page 384 of 388

10 Alphabetical Index
10
384
Soot filter full............................................ 272
Spare wheel............................................. 293
Spin control............................................. 164
Spin control function...............................164
SST – Self Supporting run flat Tyres....... 298
Stability and traction control system....... 164
Stability system....................................... 164
Stains....................................................... 338
Start assistance....................................... 115
Steering force, speed related.................. 166
Steering force level, see Steering force... 166
Steering lock............................................ 113
Steering wheel........................................... 88
keypad.......................... 88, 142, 167, 220
keypad, adaptive cruise control......... 173
steering wheel adjustment.................... 88
Stone chips and scratches...................... 339
Storage spaces in the passenger compart-
ment......................................................... 211
Sunroof
opening and closing...........................107
pinch protection.................................. 108
sunscreen........................................... 108
ventilation position.............................. 107Sunscreen, sunroof.................................. 108
Surround.......................................... 216, 223
Symbols................................................... 165
indicator symbols................................. 76
information symbols............................. 76
warning symbols................................... 76
Symbols and messages
Collision Warning with Auto
Brake..........................................187, 193
Distance Alert..................................... 182
Driver Alert Control............................. 196
Lane Departure Warning..................... 199
Symbols and messages in the Adaptive
cruise control........................................... 179
T
Tailgate
locking/unlocking.................................. 63
Temperature
actual temperature.............................148
Temperature control................................ 154
Testing the alarm system........................... 68
Timer........................................................ 155
Total airing function...........................62, 149Towbar
detachable, attachment ..................... 281
detachable, removal .......................... 282
Towbar, see Towing equipment.............. 279
Towing..................................................... 284
towing eye.......................................... 285
Towing capacity....................................... 347
Towing equipment................................... 279
specifications...................................... 280
Towing eye.............................................. 285
TPMS – Tyre Pressure Monitoring........... 297
Trailer.......................................................278
cable...................................................278
driving with a trailer............................278
snaking............................................... 283
Trailer stability assist ..............................164
Trailer Stability Assist..............................283
Transmission............................................ 116
Transponder............................................ 101
Trip computer.......................................... 162
Trip meter.................................................. 79
TSA - trailer stability assist .............164, 283
TV............................................................. 242
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