warning lights MERCEDES-BENZ A-CLASS SALOON 2018 Owners Manual

1
! ABS malfunction →
562
2 #! Turn signal indicators →
12 9
3 h Tyre pressure monitor →
571
4 Speedom eter →
254
5 Multifunction display →
259
6 # Electrical fault →
568
7 L Distance warning →
568
8 J Brakes (red) →
562
9 J Brakes (yellow) →
562
A ! Electric parking brake applied (red) →
562
B ! Electric parking brake (yellow) →
562
C % Diesel engine: preglow
D ; Engine diagno stics →
568 E
å ESP®
OFF →
562
÷ ESP®
→
562
F 6 Restra int sy stem →
33
G R Rear fog light →
12 8
H K High beam →
12 9
L Low beam →
127
T Standing lights →
127
I Fuel le vel display
J æ Fuelreser vewith fuel filler cap location
indicator →
568
K Ð Powe r-assis tedsteering malfunction →
572
L ü Seat belt not fastened →
567
M ï Trailer hit chnot operational →
572 At
aglance – Indicator and warning lamps 11

1
Speedom eter →
254
2 #! Turn signal indicators →
12 9
3 ï Trailer hit chnot operational →
572
4 Multifunction display →
259
5 6 Restra int sy stem →
33
6 Rev counter →
254
7 å ESP®
OFF →
562
÷ ESP®
→
562
8 R Rear fog light →
12 8
9 K High beam →
12 9
L Low beam →
127
T Standing lights →
127
A ? Coolant too hot/cold →
568
B Coolant temp erature display →
254
C ! Electric pa rking brake (yellow) →
562 D
J Brakes (yellow) →
562
E # Electrical fault →
568
F L Distance warning →
568
G ! ABS malfunction →
562
H Ð Powe r-assis tedsteering malfunction →
572
I h Tyre pressure monitor →
571
J % Diesel engine: preglow
K æ Fuelreser vewith fuel filler cap location
indicator →
568
L Fuel le vel display
M ! Electric parking brake applied (red) →
562
N ü Seat belt not fastened →
567
O J Brakes (red) →
562
P ; Engine diagnostics →
568 At
aglance – Indicator and warning lamps 13

1
Safetyve sts →
446
2 Fire extinguisher →
448
3 Buttons forth e SOS emer gency call sy stem
and breakdown assis tance →
398
4 Haza rdwa rning lights →
13 0
5 Glovebox →
11 0
6 Starting assis tance →
459
7 Tocheck and top up operating fluids →
496
8 Totow- start and tow aw ay →
461 9
Flat tyre →
448
A QR code for accessing there scue card →
29
B Totow- start and tow aw ay →
461
C TIREFIT kit →
450
D First-aid kit (so ftsided) →
447
E Fuelfiller flap with instruction labels for tyre
pressu re, fuel type and QR code for accessing
th ere scue card →
174
F Warning triangle →
447 At
aglance – Emer gencies and breakdowns 19

Re
stra int sy stem functionality When
the ignition is switched on, a self-test is
per form ed, during which the6 restra int sys‐
te m wa rning lamp lights up. It goes out no later
th an a few seconds af terth eve hicle is star ted.
The components of there stra int sy stem are then
functional. Malfunctioning
restra int sy stem A malfunction has occur
red in there stra int sys‐
te m if:
R the6 restra int sy stem warning lamp does
not light up when the ignition is switched on
R the6 restra int sy stem warning lamp
lights up continuously or repeatedly during a
journey &
WARNING Risk of inju ryor fata l injury
due toa malfunction in there stra int sys‐
tem
If th ere stra int sy stem is malfunctioning,
re stra int sy stem components may be trig‐ ge
red unintentionally or might not be trig‐
ge red at all in theev ent of an accident. This
may af fect the seat belt tensioner or airbag,
fo rex ample. #
Have there stra int sy stem checked and
re paired immediately at a qualified spe‐
cialist workshop. Fu
nction of there stra int sy stem in an acci‐
dent How
there stra int sy stem works is de term ined by
th e se verity of the impact de tected and the type
of accident anticipated:
R Frontal impact
R Rear impact
R Side impact
R Onlyfor cer tain countries: rollo ver
The activation thre sholds forth e components of
th ere stra int sy stem are de term ined based on
th eev aluation of the sensor values measured at
va rious points in theve hicle. This process is pre-
em ptive in nature. The triggering/deployment of th
e components of there stra int sy stem must
ta ke place in good time at thest art of the colli‐
sion.
Fa ctors whi chcan only be seen and measu red
af te r a collision has occur red do not play a deci‐
sive role in the deployment of an airbag. Nordo
th ey prov ide an indication of airbag deployment.
The vehicle may be deformed significantly with‐
out an airbag being deplo yed. This is the case if
only parts which are relatively easily deformed
are af fected and thera te ofvehicle deceleration
is not high. Con versely, an airbag may be
deplo yedev en though theve hicle suf fers only
minor deformation. If very rigid vehicle parts
such as longitudinal members are hit, forex am‐
ple, this may result in suf ficiently high le vels of
ve hicle deceleration. Occupant saf
ety33

Ve
hicles without automatic front passenger front
airbag shutoff ha vea special sticke r af fixe dto
th e side of the cockpit on the front passenger
side (/ page67).
Self-test of automatic front passenger front
airbag shutoff
When the ignition is switched on, a self-test is
per form ed during which the two PASSENGER
AIR BAG ON and OFF indicator lamps light up
simul taneously.
The status of the front passenger front airbag is
displa yed af terth e self-tes t:
R PASSENGER AIR BAG ON lights up for
60 seconds, subsequently bo thindicator
lamps are off (PASSENGER AIR BAG ON and
OFF): the front passenger front airbag is able
to deploy in theeve nt of an accident.
R PASSENGER AIR BAG OFF lights up continu‐
ously: the front passenger front airbag is dis‐
abled. It will then not be deplo yed in the
eve nt of an accident.
If th ePA SSENGER AIR BAG ON indicator lamp is
off, on lythePA SSENGER AIR BAG OFF indicator
lamp sho wsthest atus of the front passenger front airbag. The
PASSENGER AIR BAG OFF indi‐
cator lamp may be lit continuously or be off.
If th ePA SSENGER AIR BAG OFF indicator lamp
and the6 restra int sy stem warning lamp
light up simultaneousl y,the front passenger seat
may not be used. Also in this case, do not fit a
ch ild restra int sy stem tothe front passenger
seat. Ha veautomatic front passenger front air‐
bag shutoff checked and repaired immediately at
a qu alified specialist workshop.
St atus display
If th e front passenger seat is occupied, ensure,
bo th before and during the journe y,that thest a‐
tus of the front passenger front airbag is cor rect
fo rth e cur rent situation.
Af terfitting a rear wa rd-facing child restra int
sy stem tothe front passenger seat:
PA SSENGER AIR BAG OFF must be lit continu‐
ousl y. &
WARNING Risk of inju ryor death from
using a rear wa rd-facing child restra int
sy stem when the front passenger front
airbag is enabled
If yo u secure a child in a rear wa rd-facing
ch ild restra int sy stem on the front passenger
seat and thePA SSENGER AIR BAG OFF indi‐
cator lamp is off, the front passenger airbag
can deploy in theev ent of an accident.
The child could be stru ck bythe airbag.
Alw ays ensure that the front passenger air‐
bag is disabled. The PASSENGER AIR BAG
OFF indicator lamp must be lit.
NEVER use a rear wa rd-facing child restra int
sy stem on a seat pr otected byan ENABLED
FRONT AIRB AGin front of it, DE ATH or SERI‐
OUS INJU RYtotheCH ILD can occur. When
fitting a child restra int sy stem tothe front
passenger seat, obser vetheve hicle-specific
information (/ page 68).
Depending on thech ild restra int sy stem and the
st ature of thech ild, thePA SSENGER AIR BAG
OFF indicator lamp may be off. In this case, do 44
Occupant saf ety

not
fit th ere ar wa rd-facing child restra int sy stem
to the front passenger seat.
Ins tead, fit th ere ar wa rd-facing child restra int
sy stem toa suitable rear seat.
Af terfitting a forw ard-facing child restra int
sy stem tothe front passenger seat: depend‐
ing on thech ild restra int sy stem and thest ature
of thech ild, PASSENGER AIR BAG OFF may be lit
continuously or be off. Alw ays obser vethefo l‐
lowing information. &
WARNING Risk of inju ryor death due to
incor rect positioning of thefo rw ard-
fa cing child restra int sy stem
If yo u secure a child in a forw ard-facing child
re stra int sy stem on the front passenger seat
and you position the front passenger seat too
close tothe dashboard, in theev ent of an
accident, thech ild could:
R come into con tact wi thparts of theve hi‐
cle's interior if thePA SSENGER AIR BAG
OFF indicator lamp is lit, forex ample
R bestru ck bythe airbag if thePA SSENGER
AIR BAG OFF indicator lamp is off #
Alw ays mo vethe front passenger seat
as far back as possible and fully retract
th e seat cushion length adjustment.
Alw ays make sure that the shoulder belt
st ra p is cor rectly routed from the seat
belt outlet on theve hicle tothe shoul‐
der belt guide on thech ild restra int sys‐
te m. The shoulder belt stra p must be
ro uted forw ards and down wards from
th e seat belt outlet. If necessar y,adjust
th e front passenger seat according ly. #
Alw ays obser vethech ild restra int sys‐
te m manufacturer's ins tallation instruc‐
tions. When
fitting a child restra int sy stem tothe front
passenger seat, obser vetheve hicle-specific
information (/ page 68).
If a person is sitting on the front passenger
seat: PASSENGER AIR BAG OFF may be lit con‐
tinuously or be off, depending on the person's
st ature. A person on
the front passenger seat must
alw ays obser vethefo llowing information:
R Ifth e front passenger seat is occupied byan
adult or a person with a stature cor respond‐
ing tothat of an adult, thePA SSENGER AIR
BA G OFF indicator lamp must be off. This
indicates that the front passenger front air‐
bag is enabled.
If th ePA SSENGER AIR BAG OFF indicator
lamp is lit continuousl y,an adult or person
with a build cor responding tothat of an adult
should not use the front passenger seat.
Ins tead, they should use a rear seat.
R Ifth e front passenger seat is occupied by a
person of smaller stature (e.g. a teenager or
small adult), thePA SSENGER AIR BAG OFF
indicator lamp either lights up continuously
or remains off, depending on there sult of the
classi fication.
- Ifth ePA SSENGER AIR BAG OFF indicator
lamp is off: mo vethe front passenger
seat as far back as possible, or the per‐
son of smaller stature should use a rear
seat. Occupant saf
ety45

#
Stow objects in a suitable place. Re
versing the PRE- SAFE®
sy stem measures If an accident did not occur,
the pre-em ptive
measures that we retak en are reve rsed.
Yo u will need toper form certain settings your‐
self. #
Ifth e seat belt pre-tensioning is not reduced,
mo vethe seat backrest back slightl y.
The locking mechanism releases. Fu
nction of PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus) PRE-
SAFE®
PLUS can de tect cer tain impacts,
particular lyan imminent rear impact, and take
pre-em ptive measures toprotect theve hicle
occupants. These measures cannot necessarily
pr eve nt an imminent impact. PRE-SAFE
®
PLUS can implement thefo llowing
measures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Activating there ar hazard warning lights at a
higher flashing frequenc y.
R Increasing brake pressure when theve hicle
is stationar y.This brake application is cancel‐
led automatically when theve hicle pulls
aw ay.
If an accident did not occur, the pre-em ptive
measures that we retake n are reve rsed.
Sy stem limitations
The sy stem will not initiate any action in thefo l‐
lowing situations:
R when reve rsing
or
R when theve hicle is towing a trailer and there
is a risk of a rear impact The sy
stem will not initiate any braking applica‐
tion in thefo llowing situations:
R whilst driving
or
R when entering or exiting a parking space
while using Active Parking Assist Safely transporting
children in theve hicle Alw
ays obser vewhen children are tr avelling
in theve hicle %
Also strictly obser vethe saf ety no tesfo rthe
specific situation. In this wa yyo u can recog‐
nise po tential risks and avoid dangers if chil‐
dren are tr avelling in theve hicle
(/ page 48).
Be diligent
Bear in mind that neglecting tosecure a child in
th ech ild restra int sy stem may ha veserious con‐
sequences. Alw ays be diligent in securing a child
carefully before every journe y. Occupant saf
ety47

#
Push release le ver1 down as far as it will
go.
The steering column is unloc ked. #
Adjust height 2and di stance 3tothe
st eering wheel. #
Push release le ver1 up as far as it will go.
The steering column is loc ked. #
Check and make sure that thesteering col‐
umn is loc kedby moving thesteering wheel. Switching
thest eering wheel heater on or off Re
quirements:
R The ignition is switched on. #
Push the switch toposition 1or2.
If indicator lamp 3lights up, thesteering
wheel heater is switched on.
When you swit ch the ignition off, thesteering
wheel heater switches off. Easy entry and
exitfeature Using
the easy entry and exitfeature &
WARNING Risk of accident when pulling
aw ay during the adjustment process of
th e easy exitfeature
‑ If you pull away while the easy entry and
ex itfeature is making adjustments, you could
lose cont rol of theve hicle. #
Alw ayswa it until the adjustment proc‐
ess is comple tebefore pulling away. &
WARNING Risk of becoming trapped
while adjusting the easy entry andexit
fe ature
When the easy entry andexitfeature adjusts
th e driver's seat, you and other vehicle occu‐
pants – particularly children – could become
trapped. #
During the adjustment process of the
easy entry andexitfeature, make sure 106
Seats and stowing

R
Obser vethe no tes on sur round lighting
(/ page135).
Au tomatic driving lights function
The standing lights, low beam and daytime run‐
ning lights are switched on au tomatically
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.
Ad justing the headlamp range (halogen
headla mps)
The headlamp range adjus ter allows youto
adjust the cone of light from the headlamps in
re lation totheve hicle's load condition. g
Driver's seat and front passenger seat occu‐
pied
1 Driver's seat, front passenger seat and rear
seats occupied
2 Driver's seat, front passenger seat and rear
seats occupied, boot laden
3 Driver's seat and front passenger seat occu‐
pied and maximum permissible rear axle
load utilised 12 8
Light and sight

Ac
tivating/deactivating the hazard warning
lights #
Press button 1.
The hazard warning lights will switch on auto‐
matically if:
R the airbag has been deplo yed.
R theve hicle is heavily braked from a speed of
more than 70 km/h toast andstill. When
you pull away again, the hazard warning
lights will switch off automatically at appr ox‐
imately 10km/h. You can also swit choff the
hazard warning lights using button 1. Ad
aptive functions, MULTIBEAM LED Intelligent Light Sy
stem function
The MULTIBEAM LED headlamps adapt tothe
driving and weather situation and pr ovide exten‐
ded functions for impr oved illumination of the
ro ad.
The sy stem comprises thefo llowing functions:
R Active headla mps (/ page130)
R Cornering light (/ page131)
R Motorw ay mode (/ page131)
R City lighting ( /page131)
Sy stem limitations
R The sy stem is active only when it is dar k.Ac
tive headlamps function R
The headlamps follow thesteering mo ve‐
ments.
R Releva nt areas are better illumina ted during
tra vel.
The functions are active when the high beam is
switched on. 13 0
Light and sight