stop start MERCEDES-BENZ A-CLASS SALOON 2018 Owner's Guide

Display messages
Possible causes/consequences and M
MSolutions
or #
If possible, continue driving at a steady speed and remo veyour foot from the clutch pedal. Do not ride the
clutch.
The clutch will cool while theve hicle is in motion.
When the clutch has cooled down, the display message will disappear.
Depress clutch fully to
start engine *Y
ou ha veattem ptedto start the engine without depressing the clutch pedal. #
Depress the clutch pedal and then start the engine.
The engine has stalled while theve hicle was pulling away, e.g. because the clutch pedal wasre leased tooqu ickl y. #
Dep ress the clutch pedal again.
The engine will start automaticall y. #
Slowly release the clutch pedal topull away.
N permanently active Risk
of vehicle rolling *
While theve hicle is rolling or while you are driving, the transmission has been shif tedto position i. #
Depress the brake pedal tostop and, when theve hicle is stationar y,shift the transmission toposition j. #
Tocontinue your journe y,shift the transmission toposition hork.
Risk of vehicle rolling away
Apply parking brake See
Owner's Manual *T
he transmission position cannot be identified securel y.#
Use the electric parking brake tosecure theve hicle against rolling away.
Trans. oil overheated Drive
on with care *T
he transmission is overheating. When the display message is active, start-up and driving characteristics may be
te mp orarily impaired. 542
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
Ð Steering malfunction See
Owner's Manual *T
he electric steering lock is malfunctioning. The steering may be loc kedby the electric steering loc k. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
Do not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Consult a qualified specialist workshop.
_ Before starting the engine,
turn the steering wheel. *T
he electric steering lock has not unloc kedth esteering. #
Switch off the ignition. #
Tounlo ckthesteering, mo vethesteering wheel slightly tothe left and right. #
Switch the ignition back on. 544
Displaymessa ges and warning/indicator lamps

Ty
res Display messages
Possible causes/consequences and M
MSolutions
Tyre pressure Check tyres *T
he tyre pressure loss warning sy stem has de tected a significant loss in pressure. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tyre pressure (/ page470) and the tyres. #
When the tyre pressure is cor rect, restart the tyre pressure loss warning sy stem (/ page478).
h War ning tyre defect *T
he tyre pressure in one or more tyres has dropped suddenly. The wheel position is displa yed. Display messages and
warning/indicator lamps 545

Display messages
Possible causes/consequences and M
MSolutions
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tyre pressure (/ page470) and the tyres.
h Rectify tyre pressure *T
he tyre pressure is too low in at least one of the tyres, or the tyre pressure dif fere nce between the wheels is too
great. #
Check the tyre pressure and add air, if necessar y. #
When the tyre pressure is cor rect, restart the tyre pressure monitoring sy stem (/ page473).
h Tyre press. monitor cur-
rently unavailable *T
here is inter fere nce from a po werful radio signal source. As a result, no signals from the tyre pressure sensors are
re cei ved. The tyre pressure monitoring sy stem is temp orarily una vailable. #
Drive on.
The tyre pressure monitoring sy stem restarts automatically as soon as the cause has been rectified.
h
Wheel sensor(s) missing *T
he tyre pressure sensor signal is missing from one or more tyre(s). The pressure of the af fected tyre is not dis‐
pl ay ed. #
Have thefa ulty tyre pressure sensor replaced at a qualified specialist workshop. Display messages and
warning/indicator lamps 547

Display messages
Possible causes/consequences and M
MSolutions
If th eke y de tection function has a malfunction due toast ro ng radio signal source: #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Place theke y in the slot forst arting the engine with theke y (/ page157).
Á
Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
Á Key not detected (white
display message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, start the engine with theke y in the slot (/ page157).
Á Cha nge key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page75).
Á *T
hekey de tection function is malfunctioning. #
Change the location of theke y in theve hicle. #
Start theve hicle with theke y in the slot (/ page157). 550
Displaymessa ges and warning/indicator lamps

Anti-theft pr
otection
see ATA (anti-theft alarm sy stem)
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay Trans ferred vehicle data ......................3 96
Apple CarPlay™ ....................................... 393
Connecting an iPhone ®
....................... 394
Ending ................................................. 395
No tes ................................................... 394
Overview ............................................. 393
Sound settings .................................... 395
Ashtr ay
Using ....................................................1 19
Assistance sy stems
see Driving saf ety sy stem
Assistant display Menu (on-board computer) .................. 261
ASS YST PLUS ........................................... 429
Battery disconnection pe riods .............4 30Displ
aying the service due date ........... 429
Fu nction/no tes ................................... 429
Re gular maintenance work .................. 429
Special service requ irements .............. 429
ATA (anti-theft ala rmsystem) .................. .94
Deactivating the alarm .......................... 95
Fu nction ................................................ 94
Fu nction of interior pr otection ............... 96
Priming/deactivating interior pr otec‐
tion ........................................................ 96
Priming/deactivating tow- aw ay pro‐
te ction ................................................... 95
To w- aw ay protection function ................95
AT TENTION ASSI ST.......................... 237, 238
Fu nction .............................................. 237
Setting ................................................. 238
Sy stem limitations ...............................2 37
At tention assistant
see ATTENTION ASSIST
Au gmented reality
see Route guidance with augmented reality
Au thorised workshop
see Qualified specialist workshop Au
tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................12 8
Au tomatic engine start (ECO start/
sto p function) .......................................... 16 2
Au tomatic engine stop (ECO start/
sto p function) .......................................... 16 2
Au tomatic front passen ger front air‐
bag deacti vation sy stem
see Automatic front passenger front
airbag shutoff
Au tomatic front passen ger front air‐
bag shu toff .......................................... 42, 43
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 42
PA SSENGER AIR BAG indicator lamp .... .43
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .143
Au tomatic transmission
DIRECT SELECT le ver ........................... 16 9
Drive prog ram display ......................... .165
Drive programs ................................... .164 Index
577

Ac
tive Steering Assist cur rently
una vailable See Owner's Manual .........525
Ac tive Steering Assist inoperative .......524
Ad aptive Highbeam Assist cur rently
una vailable See Owner's Manual .........559
Ad aptive Highbeam Assist inopera‐
tive ...................................................... 559
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .560
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .560
¯ AdBlue sy stem fault Engine
st art not possible ................................ 539
¯Ad Blue system fault Perf.
re duced in XXX miles See Owner's
Manual ................................................ 538
¯ AdBlue sy stem fault Perf.
re duced: XXX km/h Nostart in XXX
km ...................................................... .538 ¯
AdBlue sy stem fault See Own‐
er's Manual ........................................ .538
4Ad d 1 litre engine oil when next
re fuelling ............................................. 536
Anti-theft ala rmsystem Malfunction ... 556
Apply brake todeselect Park (P)
position ...............................................5 40
Apply brake toselect R ........................ 543
À ATTENTION ASSIST inoperative ... 526
ÀAT TENTION ASSIS T:Take a
break! .................................................. 525
bAu tomatic driving lights inoper‐
ative .................................................... 559
Au xilia rybattery malfunction ...............541
_ Before starting the engine, turn
th esteering wheel. .............................. 544
Blind Spot Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 523
Blind Spot Assist inope rative ............... 524 Blind Spot Assi
stnot available when
to wing a trailer See Owner's Manual ...5 26
Brake immediate ly............................... 51 0
Á Changekey bat teries .................. 550
JCheck brake fluid le vel................ .515
Check brake pads See Owner's Man‐
ual ...................................................... .523
ïChe cktrailer hitch lo ck(white
display message) .................................5 52
Che cktyre pressu resth en restart
Ru n Flat Indicator ................................ 549
h Check tyre(s) .............................. .546
!Clean the fuel filter ...................... 531
Clutch overheated Avoid pulling away
fo r XX:XX mins .................................... .541
? Coolant Stop vehicle Switch
engine off ............................................ 534
Cruise contro l and Limiter inope ra‐
tive ...................................................... 529
Cruise control inope rative ................... 529 584
Index

Cruise cont
rol off ................................ 529
Cur rently una vailable Camera view
re stricted ............................................. 530
Cu rrently unavailable Radar sensors
dirty .....................................................5 27
! currently una vailable See Own‐
er's Manual .......................................... 516
÷ currently una vailable See Own‐
er's Manual .......................................... 51 0
Dep ress clutch fully tostart engine .....5 42
Drive sy stem Malfunction Stop
Switch engine off ................................ 533
Drive sy stem Malfunction Visit work‐
shop ....................................................5 33
5Engine oil le vel cannot be
measured ............................................ 535
4Engine oil le velRe duce oil le vel...5 35
4Engine oil le velSt op vehicle
Switch engine off ................................ 535 4Engine oil pressure
Stop Switch
off engine ............................................ 536
6Fr ont left malfunction Consult
wo rkshop (Example) ............................5 21
Fr ont-passenger airbag disabled See
Owner's Manual ................................... 519
Fr ont-passenger airbag enabled See
Owner's Manual ................................... 51 8
& inope rative Battery low ............... 557
&inoperati veRefuel vehicle ........... 557
&inoperative See Owner's Man. ....556
!inoperative See Owner's Man‐
ual ........................................................ 517
÷ inope rative See Owner's Man‐
ual ....................................................... .517
T inope rative See Owner's Man‐
ual ....................................................... .514
G Inoperative .................................. 521
bIntellige nt Light System inoper‐
ative ....................................................5 57Á
Key not de tected (red displ ay
messa ge).............................................5 49
ÁKe y not de tected (white dis‐
pl ay messa ge).....................................5 50
bLeft dipped beam (Example) ....... 558
6Left wind owbag malfunction
Consult workshop (Example) ................518
Limiter inoperative .............................. 529
Limiter passive .................................... 530
bMalfunction See Owner's Man‐
ual ....................................................... 559
ðMaximum speed exceeded ..........5 30
Mercedes me connect Services limi‐
te d See Owner's Manual .....................520
N permanently active Risk of vehicle
ro lling .................................................. 542
ç Off............................................... 528
ëOff ............................................... 526
Only select Park (P) when vehicle is
st ationary ............................................ 543 Index
585

ïOperation only possible in
transmission position N
....................... 551
ïOperation only possible in
transmission position P ....................... 553
!Pa rking brake See Owner's
Manual ................................................ .511
Pa rking lock malfunct. Apply parking
brake .................................................. .541
Á Place theke y in the mar ked
space See Owner's Manual ................. 550
PRE-SAFE inoperative See Owner's
Manual ................................................ 520
hRe ctify tyre pressure ...................547
Re duce speed ...................................... 548
Ø Refill Ad Blue Engine start not
possible .............................................. .537
Ø Refill Ad Blue See Owne r’s Man‐
ual .......................................................5 37
! Release parking brake .................514
¸ Replace air cleaner .....................532ÀRe
placekey See Owner's Man‐
ual ...................................................... .551
Á Replace key ................................ .550
æRe servefuel le vel........................ 534
6Re stra int sys. malfunction Con‐
sult workshop ...................................... 522
Re versing not poss. Consult work‐
shop ..................................................... 541
Risk of vehicle rolling away Apply
pa rking brake See Owner's Manual .....5 42
Risk of vehicle rolling away Parking
brake not applied See Owner's Man‐
ual ........................................................ 51 5
Risk of vehicle rolling Driver door
open and transmission not in P ...........543
Ru n Flat Indicator inope rative ............. 549
# See Owner's Manual ................... 531
Speed limit (winter tyres) XXX km/h ... 530
Speed Limit Assi stinope rative ........... .531 Ð
Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual .... 554
ÐSt eering malfunction See Own‐
er's Manual ......................................... 544
Ð Steering malfunction Stop
immediately See Owner's Manual .......554
# Stop vehicle Lea veengine run‐
ning ..................................................... 532
#St opvehicle See Owner's Man‐
ual .......................................................5 33
çsuspended .................................. 528
bSwitch off lights .......................... 558
bSwitch on headla mps.................. 559
Te aching in transmission comple te..... 543
Te aching in transmission Operate
selec tor le ver Brake for XX seconds
Risk of vehicle rolling .......................... .541
To shift out of P or N,depress brake
and start engine .................................. 540586
Index

ØTo
p upAdBlue Perf.re duced in
XXX miles See Owner's Manual ...........539
Ø Top up AdBlue Perf.re duced:
XXX km/h Nostart in XXX km ............ 539
To p up coolant See Owner ’sManual ... 532
¥To p upwasher fluid .................... .556
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 526
Tr af fic Sign Assi stinope rative ............. 525
ïTr ailer coupling extending… ......... 553
Tr ans. oil overheated Drive on with
care ..................................................... 542
Tr ansmission Malfunction ....................543
Tr ansmission Malfunction Stop ........... 540
Tr ansmission Malfunction Visit work‐
shop ....................................................5 40
!Tu rnon the ignition torelease
th e parking brake ................................. 511
h Tyre press. monitor cur rently
una vailable .......................................... 547h
Tyre press. monitor inoperative
No wheel sensors ................................ 548
h Tyre press. monitor inoperative ...548
Ty re pressure Check tyres ...................545
Ty re(s) ove rheated ...............................5 48
hWa rning tyre defect .....................545
hWheel sensor(s) missing ..............547
Wi thout changing gear, consult work‐
shop ....................................................5 40
Display on the windscreen
see Head-up display
Distance control see Active Dis tance Assi stDISTRONIC
Di stance recorder
see Trip dis tance
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door lock .............................. 77
Child saf ety lock (rear door) .................. 70
Locking (emer gency key) ...................... .81
Opening (from the inside) ......................78 Un
locking (emer gency key) .................... 81
Un locking (from the inside) ...................78
Door cont rol panel .................................... .16
Dr aw bar
see Tow- bar sy stem
Drinks holder see Cup holder
Drive Away Assist .................................... 235
Drive position Engaging .............................................. 171
Drive prog ram display ............................. 16 5
Drive prog rams
see DYNA MIC SELECT
Driver's seat see Seat
Driving abroad Symmetrical dipped beam ...................1 27
Driving lights see Automatic driving lights
Driving saf ety sy stem ............................ .189
ABS (Anti-lock Braking Sy stem) ........... 191
Ac tive Brake Assi st.............................. 19 5 Index
587