Page 178 of 269

176Driving and operatingIn some cases, traffic sign assistant is
cleared up automatically by the
system.
Clearing of traffic signs
There are different scenarios that
lead to clearing the currently
displayed traffic signs. After clearing,
the “Default Sign” is displayed in the
Driver Information Centre.
Reasons for signs being cleared: ● A predefined distance was driven
or time has elapsed (differs for
each sign type)
● Vehicle drives through a turn
● The speed becomes slower than 52 km/h (city entry detection)
Fault
The traffic sign assistant system may
not operate correctly if:
● The area of the windscreen, where the front camera is
located, is not clean or affected
by foreign items, e.g. stickers.
● Traffic signs are completely or partially covered or difficult to
discern.● There are adverse environmental
conditions, e.g. heavy rain, snow,direct sunlight or shadows.
● Traffic signs are incorrectly mounted or damaged.
● Traffic signs do not comply with the Vienna Convention on traffic
signs (Wiener Übereinkommen
über Straßenverkehrszeichen).Caution
The system is intended to help the driver within a defined speed
range to discern certain traffic
signs. Do not ignore traffic signs
which are not displayed by the
system.
The system does not discern any other than the conventional traffic
signs that might give or end a
speed limit.
Do not let this special feature
tempt you into taking risks when
driving.
Always adapt speed to the road
conditions.
The driver assistance systems do not relieve the driver from full
responsibility for vehicle
operation.
Lane departure warning
The lane departure warning system
observes the lane markings between
which the vehicle is driving via a front camera. The system detects lane
changes and warns the driver in the
event of an unintended lane change
via visual and acoustic signals.
Criteria for the detection of an
unintended lane change are:
● No operation of turn signals.
● No brake pedal operation.
● No active accelerator operation or speeding-up.
● No active steering.
If the driver is performing these
actions, no warning will be issued.
Page 220 of 269

218Vehicle care3. On vehicles with automatictransmission: set the selector
lever to P.
On vehicles with manual
transmission automated: Keep
brake pedal depressed. Move and hold the selector lever for five
seconds to position N until P is
displayed in the Driver
Information Centre. P indicates
that the tyre pressure sensor
matching process can be started.
On vehicles with manual
transmission: select neutral.
4. Use MENU on the turn signal
lever to select the Vehicle
Information Menu ? in the
Driver Information Centre.
5. Turn the adjuster wheel to scroll to
the tyre pressure menu.
Midlevel display:
Uplevel display:
6. Press SET/CLR to begin the
sensor matching process. A
message requesting acceptance
of the process should be
displayed.
7. Press SET/CLR again to confirm
the selection. The horn sounds
twice to indicate that the receiver
is in relearn mode.
8. Start with the left side front wheel.
9. Place the relearn tool against the tyre sidewall, near the valve stem.Then press the button to activate
the tyre pressure sensor. A horn
chirp confirms that the sensor
identification code has been
matched to this wheel position.
10. Proceed to the right side front wheel, and repeat the procedure
in Step 9.
11. Proceed to the right side rear wheel, and repeat the procedure
in Step 9.
12. Proceed to the left side rear wheel, and repeat the procedure
in Step 9. The horn sounds twice
to indicate that the sensor
identification code has been
Page 266 of 269

264Headlights................................... 113Headlights when driving abroad 115
Head restraint adjustment .............8
Head restraints ............................ 36
Heated mirrors ............................. 31
Heated rear window ..................... 33
Heated steering wheel .................76
Heated windscreen .......................34
Heating ........................................ 40
Heating and ventilation system . 123
High beam ........................... 96, 115
High beam assist ..................96, 116
Hill start assist ........................... 150
Horn ....................................... 15, 77
I
Identification plate .....................241
Ignition switch positions .............134
Immobiliser ............................ 29, 95
Indicators ...................................... 83
Inductive charging ........................82
Information displays...................... 97
Instrument cluster ........................83
Instrument panel fuse box .........210
Instrument panel illumination .....206
Instrument panel illumination control .................................... 119
Instrument panel overview ........... 10
Interior care ............................... 236
Interior lighting ............................ 119Interior lights ...................... 120, 206
Interior mirrors .............................. 31
Interruption of power supply ......143
Introduction .................................... 3
ISOFIX child restraint systems ....55
J
Jump starting ............................. 230
K Key, memorised settings ..............24
Keys ............................................. 22
Keys, locks ................................... 22
L
Lane departure warning .......93, 176
Lashing eyes ............................... 71
Light switch ................................ 113
Load compartment ................27, 67
Load compartment cover .............69
Loading information .....................73
Low fuel ....................................... 95
M
Malfunction indicator light ............92
Manual anti-dazzle ......................31
Manual mode .....................142, 148
Manual transmission .................. 144
Manual transmission automated 145
Manual windows ..........................32
Memorised settings ......................24Mirror adjustment ........................... 8
Misted light covers .....................119
N
New vehicle running-in ..............134
Number plate light .....................206
O Object detection systems ...........160
Odometer ..................................... 84 Oil, engine .......................... 238, 242
OnStar ........................................ 109
Operate pedal ............................... 93
Outside temperature ....................79
Overrun cut-off ........................... 136
P Parking ................................ 20, 139
Parking assist ............................ 160
Parking brake ............................ 150
Parking lights ............................. 119
Particulate filter ........................... 140
Performance .............................. 247
Performing work ........................192
Pollen filter ................................. 131
Power outlets ............................... 82
Power steering.............................. 93
Power windows ............................ 32
Preheating ................................... 94
Puncture ..................................... 225