
Exterior lighting
Note
s onchanging the lights when driving
abroad It is not necessary
tochange the headlamps.
The legal requirements are also met in countries
in which traf fic drives on theot her side of the
ro ad. Information about lighting sy
stems and your
re sponsibility The
various lighting sy stems of theve hicle are
only aids. The driver of theve hicle is responsible
fo r cor rect vehicle illumination in accordance
with the pr evailing light and visibility conditions,
legal requirements and traf fic situation. Light switch
Ope
rating the light switch 1
W Left pa rking light
2 X Right parking light
3 T Standing lights and licence plate light‐
ing
4 Ã Automatic driving lights (prefer red light
switch position) 5
L Low beam/high beam
6 R Switches there ar fog lights on or off
When low beam is activated, the indicator lamp
fo rth est anding lights Tis deactivated and
re placed bythe low beam indicator lamp L. #
Alw ays park your vehicle safely and in a well-
lit area, in accordance with there leva nt le gal
st ipulations.
* NO
TEBattery discharging byoperating
th est anding lights Operating
thest anding lights over a period of
hours puts a stra in on the batter y. #
Where possible, switch on the
ri ght X or left Wparking light. In
the case of se vere battery discharging, the
st anding lights or parking lights are automati‐
cally swit ched off tofacilitate the next engine
st art.
The exterior lighting (e xcept standing and park‐
ing lights) swit ches off automatically when the
driver's door is opened. 98
Light and sight

R
Obser vethe no tes on sur round lighting
(/ page 102).
Au tomatic driving lights function
The standing lights, low beam and daytime run‐
ning lights are switched on au tomatical ly
depending on the ignition status and the light
conditions. &
WARNING Risk of accident when the
dipped beam is switched off in poor visi‐
bility
When the light switch is set toà ,the
dipped beam may not be switched on auto‐
matically if there is fog, snow or other causes
of poor visibility such as spr ay.#
In such cases, turn the light switch to
L . The automatic driving lights are only an aid.
Yo u
are responsible forve hicle lighting. Switching
there ar fog lights on or off
Re quirements:
R The light switch is in theL orà posi‐
tion. #
Press the R button.
Please obser vethe count ry-specific la wsonthe
use of rear fog lamps. Operating
the combination switch for the
lights 1
High beam
2 Turn signal indicator, right
3 Headlamp flasher
4 Turn signal indicator, left #
Use the combination switch toactivate the
desired function. Light and sight
99

R
Road users whose lighting is obstructed,
e.g. bya bar rier
On very rare occasions, Adaptive Highbeam
Assist may failto recognise other road users
with their own lighting, or may recognise
th em too late.
In this, or in similar situations, the automatic
main beam will not be deactivated or will be
activated despite the presence of other road
users. #
Alw ays obser vethe tra ffic carefully and
switch off the main beam in good time. Ad
aptive Highbeam Assist cannot take into
account road, weather or traf fic conditions.
De tection may be restricted in thefo llowing
cases:
R In poor visibilit y,e.g. fog, heavy rain or snow
R Ifth ere is dirt on the sensors or the sensors
are obscured
Ad aptive Highbeam Assist is on lyan aid. You are
re sponsible for adju sting theve hicle's lighting toth
e pr evailing light, visibility and traf fic condi‐
tions. The
Adaptive Highbeam Assist automatically
swit ches between thefo llowing types of light:
R Low beam
R High beam At
speeds abo ve30 km/h:
R If no other road users are de tected, the high
beam will be switched on automaticall y.
The high beam switches off automatically in the
fo llowing cases:
R Atspeeds below 25 km/h.
R Ifot her road users are de tected.
R Ifstre et lighting is suf ficient.
At speeds abo veappr oximately 50 km/h:
R The headlamp range of the low beam is regu‐
lated automatically based on the dis tance to
ot her road users.
The sy stem's optical sensor is located behind
th e windscreen near theov erhead control panel.
Switching Adaptive Highbeam Assist on/off #
Toswitch on: turnthe light switch tothe
à position. Light and sight
101

The electrolyte is harmful and causes ir
rita‐
tion. It mu stnot come into contact wi thyour
skin, eyes,respiratory organs or clo thing or
be swallo wed. #
Ifyo u come into contact with electro‐
ly te , obser vethefo llowing:
R Rinse the electrolyte from your skin
and seek medical attention immedi‐
atel y.
R If electrolyte comes into contact
with your eyes, rinse them thor‐
oughly with clean water and seek
medical attention immediately.
R Ifth e electrolyte is swallo wed,
immediately rinse your mouth out
th oroughly. Do not induce vomiting.
Seek medical attention immediately.
R Immedia tely ch ange out of clo thing
which has come into con tact wi th
electrolyte.
R If an allergic reaction occurs, seek
medical attention immediatel y. The inside
rearview mir ror and the outside mir‐
ro r on the driver's side automatically go into
anti-dazzle mode if light from a headlamp hits
th e sensor on the inside rearview mir ror.
Sy stem limitations
The sy stem does not go into anti-dazzle mode in
th efo llowing situations:
R the engine is switched off
R reve rsege ar is engaged
R the interior lighting is switched on Fu
nction of the front-passenger outside mir‐
ro r parking position The pa
rking position makes parking easier.
The front-passenger outside mir ror tilts down‐
wa rds and sho ws there ar wheel on the front-
passenger side in thefo llowing situations:
R the parking position is stored (/ page107)
R the front-passen ger mir ror is selected
R reve rsege ar is engaged The front-passenger outside mir
ror mo ves back
to its original position in thefo llowing situations:
R you shift the transmission toano ther trans‐
mission position
R you are tra velling at speeds greaterth an
15 km/h
R you press the button forth e outside mir ror
on the driver's side 106
Light and sight

Lights
Display messages
Possible causes/consequences and M
MSolutions
b Left dipped beam (Example)*T
he cor responding light source is defective. #
Drive on carefully. #
Consult a qualified specialist workshop immediatel y.
% LED light bulbs: the display message forth e cor responding lamp appears only when allthe light-emitting diodes
in the lamp ha vefailed.
b Switch off lights *Y
ou are leaving theve hicle and the lights are still switched on. #
Turn the light switch totheà position.
b Malfunction See Owner's
Manual *T
heexterior lighting is faulty. #
Consult a qualified specialist workshop.
b Switch on headlamps *Y
ou are driving without lo w-beam headlamps. #
Turn the light switch totheL orà position. Display messages and
warning/indicator lamps 355

Synchronising
thero lling code ............ 12 9
Gear display (on-board computer, Per‐
fo rm ance menu) ...................................... 171
Gearshift recommendation .....................124
Genera l operating permit number
(EU) .......................................................... .306
Genuine parts ............................................ 20
Glide mode ............................................... 12 5
Glo vebox
Locking/unlocking ................................ 93 H
Handbrake see Elect ric pa rking brake
Handling characteristics (unusual) ....... 285
HANDS-FREE ACCESS ................................ 66
Haza rdwa rning lights ............................ .100
Head airbag ............................................... 35
Head le vel heating (AIRSCARF) ................87
Head restra int
Fr ont (adjusting mechanically) .............. 84Headlamp
flasher ...................................... 99
High beam Adaptive Highbeam Assist .................. .100
Switching on/off ................................... 99
High-pressure cleaner (care) ................. 255
Hill Start Assist ........................................ 151
HOLD function ......................................... 151
Fu nction/no tes .................................... 151
Switching on/off ................................. 15 2
Hotspot Setting up (Wi-Fi) ................................. 19 0
Vi a business telephony ........................ 188 I
Identification pla te
Engine ................................................. 306
Ve hicle ................................................ 306
Ignition key
see Key
Immobiliser ................................................ 76
Implied warranty
Ve hicle .................................................. 25 Indicator lamps
see Warning/indicator lamps
Individual drive prog ram
Con figuring .......................................... 121
Selecting ............................................. 12 0
Inspection see AS SYST PLUS
Instrument clus ter
see Instrument display
Instrument display ..................................1 66
Fu nction/no tes ................................... 16 6
Instrument clus ter ................................. 10
Setting the additional value range ....... 16 9
Wa rning/indicator lamps .................... .357
Intelligent Light Sy stem
Ad aptive Highbeam Assist .................. .100
Interior lighting ....................................... 102
Ambient lighting .................................. 102
Re ading light ...................................... .102
Setting ................................................. 102
Switch-off del aytime ........................... 103
Interior pr otection
Fu nction ................................................ 78386
Index