2018 MERCEDES-BENZ A-CLASS SALOON battery

Display messages
Possible causes/consequences and M
MSolutions
12 V battery See Owner's
Manual #
Lea vethe engine running for a few minutes, or drive for a longer dis tance.
The battery will charge.
If th e message appears while the engine is running, this indicates an on-board elect rical sy stem malfunction. #
Consult a qualified specialist workshop.
# Stop vehicle See Owner's
Manual *T
he battery is no longer being charge d and the battery charge leve l is too lo w.
* NO
TEPossible engine damage if you continue driving #
Do not continue driving under any circum stances. #
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. #
Switch off the engine. #
Consult a qualified specialist workshop.
Drive system Malfunction
Stop Switch engine off *T
he drive sy stem is malfunctioning. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. #
Consult a qualified specialist workshop.
Drive system Malfunction
Visit workshop *T
he drive sy stem is malfunctioning. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 533

Display messages
Possible causes/consequences and M
MSolutions
Parking lock malfunct.
Apply parking brake *T
he transmission is malfunctioning. The parking lock cannot be engaged. #
Park theve hicle safely. #
Use the electric parking brake tosecure theve hicle against rolling away.
Reversing not poss. Con-
sult workshop *T
he transmission is malfunctioning. Reversege ar can no lon ger be engaged. #
Consult a qualified specialist workshop.
Teaching in transmission
Operate selector lever
Brake for XX seconds Risk
of vehicle rolling *T
he transmission is being taught in. There is a risk of theve hicle rolling away. #
Dep ress and hold the brake pedal until thete ach-in procedure has been comple ted.
The elect ric pa rking brake is applied automatically during thete ach-in procedure. #
Swit chon the ignition. #
Select transmission position j,kori.
Auxiliary battery malfunc-
tion *T
he auxiliary batteryforth e transmission is no longer being charge d. #
Consult a qualified specialist workshop. #
Untilthen, manually set the transmission toposition jbefore you swit choff the engine. #
Before leaving theve hicle, apply the electric parking brake.
Clutch overheated Avoid
pulling away for XX:XX mins *T
he clutch is under considerable load and is overheating.
Av oid frequent pulling away and driving at walking pace over longer dis tances. #
Stop theve hicle, paying attention toroad and traf fic conditions, and le avethe engine running.
The clutch will cool more quickly when the engine is running. Display messa
ges and warning/indicator lamps 541

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

Display messages
Possible causes/consequences and M
MSolutions
& inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary heater cannot be swit ched on. #
Refuel theve hicle.
&
inoperative Battery low *T
he on-board electrical sy stem voltage is too lo w.
The stationary heater has swit ched itself off. #
Drive for an extended pe riod until the battery has reached a suf ficient charge leve l again. Lights
Display messa
ges
Possible causes/consequences and M
MSolutions
b Intelligent Light System
inoperative *T
he Intelligent Light Sy stem is faulty. The lighting sy stem continues tofunction properly without the functions of
th e Intelligent Light Sy stem. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 557

1,
2, 3 ...
12 V battery
see Battery (vehicle)
12 V so cket
see Soc ket (12 V)
11 5 V soc ket
see Soc ket (1 15 V)
230 V soc ket
see Soc ket (230 V)
360° Camera ........................................... 226
Ca re .................................................... 442
Fu nction .............................................. 226
Opening the camera co ver (r eve rsing
camera) .............................................. .230
Selecting a view .................................. 230
Setting favo urites ................................ 230
Swit ching automatic operation
on/off (r eversing camera) .................. .230 A
A/C function Activating/deactivating (multimedia
sy stem) ................................................ 147Switching on/off (control panel) .........
14 6
ABS (Anti-lock Braking Sy stem) ............ .191
Ac celeration
see Kickdown
Ac cess data
Setting (Blue tooth®
) ............................ 406
Ac cident and breakdown manage‐
ment
Mercedes me connect ........................ .399
Ac oustic locking verification signal
Ac tivating/deactivating ......................... 74
Ac tivating/deactivating automatic
vo lume adjustment
Ad vanced sound sy stem ......................4 28
Burmes ter®
sur round sound sy stem ... 426
Ac tive Blind Spot Assi st.......................... 24 2
Ac tivating/deactivating ...................... .245
Brake application ................................. 24 4
Fu nction .............................................. 24 2
Sy stem limitations ...............................2 42
Tr ailer operation .................................. 24 4
Ac tive bonn et(pedestrian pr otection) .. 430
Operation ............................................ 430 Re
setting ............................................. 430
Ac tive Brake Assi st
Fu nction/no tes ................................... 19 5
Setting ................................................. 201
Ac tive Di stance Assist DISTRO NIC........ 205
Ac tive Emergency Stop Assist .............. 215
Ac tive Lane Change Assi st................... 213
Calling up a speed .............................. .207
Displ ays in the instrument display .......2 15
Fu nction .............................................. 205
Increasing/decreasing speed .............. 207
Re quirements: .................................... .207
Ro ute-based speed adap tation ........... .210
Selecting ............................................. 207
St eering wheel buttons ........................ 207
St oring a speed ................................... 207
Switching off/deactivating .................. 207
Switching on/activating ......................2 07
Sy stem limitations ...............................2 05
Ac tive Eme rgency Stop Assist ................ 215
Ac tive headlamps .................................... 13 0
Ac tive Lane Change Assi st...................... 213
Ac tivating/deactivating ...................... .215
Fu nction ............................................... 213574
Index

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

DY
NA MIC SELECT switch .................... 16 4
Engaging drive position ........................ 171
Engaging neutral .................................. 17 0
Engaging pa rkposition ........................ 17 0
Engaging reve rsege ar ........................ .170
Kickdown ............................................. 172
Manual gear changing .......................... 171
St eering wheel gearshift paddles ........ .171
Tr ansmission position display .............. 16 9
Tr ansmission positions ........................ 16 9
Au tomatic transmission (problem)
see Transmission (problem)
Axle load Perm issible .......................................... 494
Tr ailer operation .................................. 508 B
Baidu CarLife Trans ferred vehicle data ......................3 96
Ball neck Folding out/in .................................... .248
BA S (Brake Assist Sy stem) .................... .191
Battery Charging (Remo teOnline) .................... 15 9Ke
y ........................................................ 75
Re mo tecontrol (s tationary heater) ...... 15 2
Battery see Battery (vehicle)
Battery (vehicle) ...................................... 460
Charging .............................................. 459
Charging (Remo teOnline) .................... 15 9
No tes .................................................. 455
No tes (s tarting assis tance and
ch arging) ............................................ .457
Re placing ............................................ 460
St arting assis tance .............................. 459
Belt see Seat belt
Bic ycle rack
Tr ailer operation .................................. 251
Blind Spot Assist .................................... .242
Ac tivating/deactivating ...................... .245
Fu nction .............................................. 24 2
Sy stem limitations ...............................2 42
Blo wer
see Climate control BlueTEC
see AdBlue ®
Blue tooth ®
............................................... 320
Information .......................................... 320
Setting up an Internet connection ....... 406
Switching on/off ................................. 320
Boot lid Closing .................................................. 83
HANDS-FREE ACCESS .......................... .84
Opening .................................................82
Opening dimensions ............................5 04
Brake Assist Sy stem
see BAS (Brake Assi stSystem)
Brake fluid Notes .................................................. 502
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 19 5
Brakes ABS (Anti-lock Braking Sy stem) ........... 191
Ac tive Brake Assi st.............................. 19 5
Ad aptive brake lights .......................... .201
BA S (Brake Assi stSystem) ...................1 91
Driving tips .......................................... 16 0578
Index

No
tes .................................................. 499
Digital Owner's Manual ............................20
Digital speedome ter ................................ 261
Digital Vehicle Keyst icker
Locking theve hicle ................................ 78
St arting theve hicle ............................. 15 6
Un locking theve hicle ............................78
Dinghy towing
see Tow- bar sy stem
Dipped beam Changing bulbs .................................... 13 8
DIRECT SELECT le ver............................... 16 9
Engaging drive position ........................ 171
Engaging neutral .................................. 17 0
Engaging pa rkposition ........................ 17 0
Engaging pa rkposition automatically .. 17 0
Engaging reve rsege ar ........................ .170
Fu nction .............................................. 16 9
Display Care .................................................... 444
Display (multimedia sy stem) ................ .292
Home screen ....................................... 289
Operating ............................................ 292 Settings ...............................................
318
Display (on-boa rdcompu ter)
Displ ays on the multifunction display .. 259
Display content Displaying ............................................ 258
Display message .....................................5 09
Calling up (on-boa rdcompu ter) .......... .509
No tes .................................................. 509
Display messages ¯ - - - km/h ................................... 529
ç - - - km/h ................................... 528
È - - - km/h ................................... 529
#12 V battery See Owner's Man‐
ual ....................................................... 532
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual .........524
Ac tive Blind Spot Assi stinope rative .... 527
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual ................................................ 523 Ac
tive bonnet malfunction See Own‐
er's Manual ......................................... 555
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 522
Ac tive Brake Assi stFunctions limited
See Owner's Manual ........................... 520
Ac tive Dis tance Assi stavailable
again .................................................. .529
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........528
Ac tive Dis tance Assi stinope rative ...... 528
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........525
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 526
bAc tive Light Sy stem inoperative .. 558
Ac tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual .......................................... 524 Index
583