low beam MERCEDES-BENZ S-CLASS CABRIOLET 2018 Owner's Manual

1Speedom eter →
208
2 AIR BODY CONTROL malfunctioning →
454
3 #! Turn signal light →
109
4 Multifunction display →
211
5 Tach ome ter →
208
6 å ESP
®OFF →
447
÷ ESP
®→
447
7 K High beam →
109
L Low beam →
108
T Parking lights →
108
8 ? Coolant too hot/cold →
456
9 Coolant temp erature gauge →
208
A · Distance warning →
454
B Ð Steering assis tance malfunction →
455
C # Electrical malfunction →
456
D Brakes (red) →
447
$ USA only
J Canada only
E ü Seat belt is not fastened →
454
F Fuel le vel display
G 8 Fuelreser vewith fuel filler flap location
indicator →
456,
456
H R Rear fog light →
109
I 6 Restra int sy stem →
34
J % Indicator lamp has no function
K ; Check Engine →
456
L Elect ric park ing brake applied (red) →
447
F USA only
! Canada only
M h Tire pressure monitoring sy stem →
460
N ! ABS malfunction →
447
O ! Electric pa rking brake (yellow) →
447
At aglance – Warning and indicator lamps 11

Exterior lighting
Lighting systems and your responsibility
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
Opera ting the light switch
1WLeft-hand standing lamps
2X Right-hand standing lamps
3T Parking lights and license plate lamp
4Ã Automatic driving lights (prefer red light
switch position)
5L Low beam/high beam
6RSwitches there ar fog lights on or off
When low beam is activated, theT indicator
lamp forth e parking lights is deactivated and
re placed bytheL low beam indicator lamp.
#Always 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.
Inthe case of se vere battery discharging, the
parking lights or standing lamps are automati‐
cally switch ed offtofacilitate the next engine
st art.
The exterior lighting (e xcept parking lights and
st anding lamps) switch es off automatically when
th e driver's door is opened.
10 8
Light and visibility

RObservethe no tes on sur round lighting
(→page 112).
Au tomatic driving lights function
The pa rking lights, low beam and daytime run‐
ning la mps are switched on automatically
depending on the ignition status, whe ther the
engine is running and the ambient light.
&
WARNING Risk of accident when the low
beam is switched off in poor visibility
When the light switch is set toÃ, the low
beam may not be switched on automatically
if th ere 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. You
are responsible forve hicle lighting.
Ac tivating/deactivating the rear fog light
Re quirements
RThe light switch is in the L orà posi‐
tion.
#Press the R button.
Please obser vethe count ry-specific la wsonthe
use of rear fog lights.Operating the combination switch for the
lights
1High-beam headla mps
2Turn signal light, right
3High-beam flasher
4Tu rn signal light, left
#Use the combination switch toactivate the
desired function.
Light and visibility 10
9

High-beam headlamps
#Toswitch on: turnthe light switch tothe
L orà position.
#Press the combination switch be yond the
point of resis tance in the direction of ar row
1.
When the high beam is activated, theL
indicator lamp for low beam is deactivated
and replaced bytheK indicator lamp for
th e high beam.
#To switch off: movethe combination switch
back toits starting position.
High-beam flasher
#Pull the combination switch in the direction
of ar row3.
Tu rn signal lights
#To indicate briefl y:press the combination
switch briefly tothe point of resis tance in the
direction of ar row2or4.
The cor responding turn signal light flashes
th re e times.
#To indicate permanentl y:press the combi‐
nation switch be yond the point of resis tance
in the direction of ar row2or4.
Ve hicles with Active Lane Change Assi st:
Ac tive Lane Change Assi stcan:
Rlengthen turn signal ope ration forth e
duration of the lane change if the driver
has activated the turn signal indicator.
Rautomatically activate the turn signal indi‐
cator if the driver indicated toturn in that
direction immediately before but a lane
ch ange was not immediately possible.
Activating/deactivating the hazard warning
light
#Press button 1.
110
Light and visibility

Cornering light
Cornering light function
Cornering light improvesth e illumination of the
ro adw ayove r a wide angle in the turning direc‐
tion, enabling better visibility on tight bends, for
ex ample. It can only be activated whenthe low
beam is switched on.
The function is active:
RAt speeds below 25 mph (40 km/h) when
th e turn signal light is switched on or the
st eering wheel is turned.
RAt speeds between 25 mph (40 km/h) and
45 mph (70 km/h) when thesteering wheel
is turned.
Ad aptive Highbeam Assist
Function of Adaptive Highbeam Assist
&
WARNING Risk of accident despite
Ad aptive Highbeam Assist
Ad aptive Highbeam Assist does not recog‐
nize thefo llowing road users:
RRo ad users without lights, e.g. pedes‐
trians
RRo ad users with poor lighting, e.g.
cyclists
RRo ad users whose lighting is obstructed,
e.g. bya bar rier
On very rare occasions, Adaptive Highbeam
Assist may failto recognize other road users
with their own lighting, or may recognize
th em too late.
In these or similar situations, the automatic
high beam is not deactivated or is activated
despite the presence of other road users.
#Alw ays obser vethe tra ffic carefully and
switch off the high beam in good time.
Sy stem limitations
Ad aptive Highbeam Assist cannot take into
account road, weather or traf fic conditions.
De tection may be restricted if:
RVi sibility is impaired, forex ample in fog,
heavy rain or sno w.
RThere is dirt on the sensors or the sensors
are obscured.
Ad aptive Highbeam Assist is only an aid.You are
re sponsible for adju sting theve hicle's lighting to
th e pr evailing light, visibility and traf fic condi‐
tions.
Light and visibility 111

Adaptive Highbeam Assist switch es automati‐
cally between:
RLow beam
RHigh beam
At speeds abo ve19 mp h (30 km/h):
RIf no other road users are de tected, high
beam is au tomatical lyswitched on. High beam switches off automatically:
RAt
speeds below 16mp h(2 5 km/h).
RIfot her road users are de tected.
RIfstre et lighting is suf ficient.
At speeds abo veappr ox.31 mp h (50 km/h):
RThe headlamp range of low beam is regulated
automatically based on the dis tance to ot her
ro ad users.
The sy stem's optical sensor is located behind
th e windshield near theove rhead control panel.
Switching Adaptive Highbeam Assist on/off
#To switch on: turnthe light switch to
th eà position.
#Switch on the high beam using the combina‐
tion switch.
When the high beam is switched on automat‐
ically in the dar k,the_ indicator lamp in
th e multifunction display comes on.
#To switch off: switch offthe high beam
using the combination switch.
Switching the daytime running lights on/off
Multimedia sy stem:
,Vehicle.÷ Light Settings.Day-
time Run. Lights
#Ac tivate Oor deacti vate ª the function.
Setting theex terior lighting switch-off delay
time
Multimedia sy stem:
,Vehicle.÷ Light Settings.Ext.
Light Switch Off
#Set the switch-off delay time.
Setting the sur round lighting
Multimedia sy stem:
,Vehicle.÷ Light Settings.Loca-
tor Lighting
#Ac tivate Oor deacti vate ª the function.
If th e sur round lighting is switched on, theex te‐
ri or lighting remains lit for 40 seconds af terth e
11 2
Light and visibility

Displaymessages
Possible causes/consequences and MSolutions
¥
Check Washer Fluid*T
hewasher fluid leve l in thewa sher fluid reser voir has dropped below the minimum.
#To p up thewa sher fluid .
Lights
Display messages
Possible causes/consequences and MSolutions
b
Example:Check Left Low
Beam *T
he cor responding light source is defective.
#Visit a qualified specialist workshop.
% LED light bulbs: the display message forth e cor responding lamp only appears when allthe light-emitting diodes
in the lamp ha vefailed.
b
Active Headlamps Inopera-
tive *T
he active headlamp s are defective.
#Visit a qualified specialist workshop.
Display messages and warning/indicator lamps 44
3

Displaymessages
Possible causes/consequences and MSolutions
b
Malfunction See Opera-
tor’s Manual*T
heexterior lighting is defective.
#Vi sit a qualified specialist workshop.
b
Auto Lamp Function Inoper-
ative *T
he light sensor is defective.
#Visit a qualified specialist workshop.
b
Switch Off Lights *Y
ou are leaving theve hicle and the lights are still switched on.
#Tu rn the light switch totheà position.
b
Switch On Headlamps *Y
ou are driving without low beam headlamps.
#Turn the light switch totheL orà position.
Adaptive Highbeam Assist
Inoperative *A
daptive Highbeam Assist is malfunctioning.
#Visit a qualified specialist workshop.
444
Displaymessage s andwarning/indicator lamps

Instrument Display intheWi descreen Co ck‐
pit
Prog ressive setting (Widescreen Cockpit)
Ifyo u select the progressive display setting in
ve hicles with a Widescreen Cockpit, the position
of the indicator lamps in the Instrument Display
ch anges.
Wa rning and indicator lamps:
L Low beam (
→page
108)
T Pa
rking lights (
→page 108)
K High beam
(
→page10 9)
#! Tu
rn signal light (
→page 109)
R Re
ar fog light (
→page 108)
ü Seat belt is not
fastened
(
→page 454)
$ USA: brakes (red) (
→page
447)
J Canada
: brakes (red) (
→page 447)
! ABS malfunction (
→page
447)
÷ ESP
®(→page 447)
å ESP
®OFF (→page 447)
F US
A: electric pa rking brake applied
(red) (
→page 447) !
Canada: electric parking brake
applied (red) (
→page
447)
! Electric pa
rking brake (yellow)
(
→page 447)
Ð St
eering assis tance malfunction
(
→pa ge 455)
# Electrical
fault (
→page 456)
6 Re
stra int sy stem (
→page 447)
; Che
ckEngine (
→page 456)
8 Fu
elreser vewith fuel filler cap loca‐
tion indicator (
→page 456)
(→page 456)
? Coolant
too hot/cold (
→page 456)
· Dis
tance warning (
→page 454)
h Ti
re pressure monitoring sy stem
(
→page 460)
44 6
Displ aymessage s andwarning/indicator lamps

Active Steering Assist Cur rently
Un available See Operator's Manual .....4 25
Ac tive Steering Assist Inoperative .......4 26
Ad aptive Highbeam Assist Camera
Vi ew Restricted See Ope rator's Man‐
ual ....................................................... 445
Ad aptive Highbeam Assist Cur rently
Un available See Operator's Manual ....445
Ad aptive Highbeam Assist Inopera‐
tive ...................................................... 444
App lyBrake toShift from 'P' ............... 436
ÀAT TENTION ASSIST Inoperative ... 420
ÀAT TENTION ASSIS T:Take a
Break! .................................................. 420
bAu toLamp Function Inoperati ve
............................................................. 444
Au xilia ryBattery Malfunction .............. 438
Blind Spot Assist Currently Una vaila‐
ble See Opera tor's Manual .................. 423
Blind Spot Assist Inoperative ............... 423$
Check Brake Fluid Le vel.............. 414
Check Coolant Le vel See Operator's
Manual ................................................ 427
4Check Engine Oil AtNext Refu‐
eling .................................................... 429
hChe ckTire s ................................. 431
¥Check Washer Fluid .................... 443
?Coolant Too Hot Stop Vehicle
Tu rn Engine Off .................................... 427
Cruise Control Canceled ..................... 426
Cruise Contro
l Inoperati ve.................. 426
!Cur rently Una vailable See Oper‐
ator's Manual ...................................... 406
÷Cur rently Una vailable See Oper‐
ator's Manual ...................................... 408
ÂDon't Forget Your Key................ .435
Driver's Door Open & Transmission
No t in P Risk of Vehicle Rolling Away .. 436
bExample: Check Left Low Beam ............................................................. 443 _Example:
Front Left Seat Back‐
re st Not Loc ked .................................. 442
Fr ont Passenger Airbag Disabled See
Operator's Manual ...............................4 19
Fr ont Passenger Airbag Enabled See
Operator's Manual ...............................4 18
8Fu el Level Low ............................ 430
8Gas Cap Loose ............................ 429
!Inoperative See Opera tor's
Manual ................................................4 05
÷Inopera tive See Operator's
Manual ................................................ 407
TInope rative See Operator's
Manual ................................................ 409
GInope rative ................................... 414
ÂKe yNo tDe tected (red displ ay
message )............................................ .435
ÂKe yNo tDe tected (white dis‐
play message ).... ...
.............................
.434
Index 47
1