
Wa
rning/indicator lamp
Possible causes/consequences and 0050 0050Solutions
00B9 Engine diagnosis warning
lamp *T
he yellow engine diagno stics warning lamp is lit while the engine is running.
A malfunction has occu rred in the engine, theex haust sy stem or the fuel sy stem.
The emissions limit value may ha vebeen exceeded and the engine may be running in emergency operation mode. #
Have theve hicle checked as soon as possible at a qualified specialist workshop.
Ve hicles with a diesel engine: the fuel tank may ha vebeen run dr y. #
Start the engine thre eto four times af terre fuelling.
If th eye llow engine diagnosis warning lamp goes out, emer gency operation mode is cancelled. The vehicle need
not be checked.
003D
Elect rical fault warning
lamp *T
hered elect rical fault warning lamp is lit.
There is a fault in the electrics. #
Notethe messages on the multifunction displa y.
00B6
Fu elreser vewarning lamp
lights up *T
he yellow fuel reser ve wa rning lamp lights up while the engine is running.
The fuel supp lyhas dropped into there ser verange. #
Refuel. Displ
aymessa ges and warning/indicator lamps 473

Wa
rning/indicator lamp
Possible causes/consequences and 0050 0050Solutions #
Do not top up the brake fluid. Driving sy
stems Wa
rning/indicator lamp
Possible causes/consequences and 0050 0050Solutions
L Wa rning lamp for dis tance
wa rning function *T
he red dis tancewarning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obs tacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the dis tance.
Fu nction of Active Brake Assi st (/ page 223).
00D4
Ac tive Brake Assi stwa rning
lamp *T
he white Active Brake Assi stwa rning lamp is lit.
The sy stem is switched off or una vailable. #
Notethe messages on the multifunction displa y.476
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and 0050 0050Solutions
00E5 ESP ®
wa rning lamp lights
up *
The yellow ESP ®
wa rning lamp is lit while the engine is running.
ESP ®
is malfunctioning.
Other driving sy stems and driving saf ety sy stems (e.g. BAS) may also be malfunctioning. #
Notethe messages on the multifunction displa y. &
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabilisation. In addition, other driving saf ety sy stems
are switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified specialist workshop. 00BB
ESP ®
OFF warning lamp *
The yellow ESP ®
OFF warning lamp is lit while the engine is running.
ESP ®
is deacti vated.
Other driving sy stems and driving saf ety sy stems may also be inoperative. &
WARNING Risk of skidding when driving wi thESP ®
deacti vated
ESP ®
does not act tostabilise theve hicle. The availability of fur ther driving saf ety sy stems is also limited. #
Drive on carefull y. #
Deactivate ESP ®
only for as long as the situation requ ires. Display messages and
warning/indicator lamps 47 9

Wa
rning/indicator lamp
Possible causes/consequences and 0050 0050Solutions
0077 Ty re pressure monitoring
sy stem warning lamp lights
up *T
he yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring sy stem has de tected tyre pressure loss in at least one of the tyres. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
R The tyres can burs t.
R The tyres can wearexc essively and/or une venly.
R The driving characteristics as well as thesteering 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 in accordance with the tra ffic conditions. #
Check the tyre pressure and the tyres. Display messages and
warning/indicator lamps 481

Sy
stem limitations................................. 259
Ac tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st
Displ ay................................................... 216
Fu nction................................................. 216
Ac tive Steering Assist
Ac tivating/deactivating......................... 222
Ac tive Emergency Stop Assis t............... 222
Fu nction................................................ 220
Sy stem limits.........................................2 20
Ac tive Traf fic Jam Assist
Ac tivating/deactivating......................... 218
Fu nction................................................. 218
Ad aptive brake lights ................................ 206
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive functions, MULTIBEAM LED
see Intelligent Light Sy stem
Ad aptive Highbeam Assist Plus
Fu nction................................................ 13 8
Switching on/of f................................... 13 9Ad
Blue ®
Ad ditives...............................................3 98
Capacity................................................ 398
No tes..................................................... 189
Purity..................................................... 398
To pping up............................................. 189
Ad ditional door lo ck.................................... 78
Ad diti ves
Ad Blue ®
................................................ 398
Engine oil.............................................. 399
Fu el....................................................... 396
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
ADS PLUS damping sy stem
see AIRMATIC
Af ter-sales service centre
see ASS YST PLUS
Air conditioning menu Calling up............................................... 151Air distribution
Setting................................................... 15 0
Setting (MBUX multimedia sy stem)....... 15 2
Air freshener sy stem
see Frag rance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIRMATIC
Air vents
Ad justing (front).................................... 15 9
Ad justing (rear)..................................... .160
Glov e box............................................... 16 0
Air vents
see Air vents
Ai r-conditioning sy stem
see Climate control
Air-recirculation mode.............................. 15 3
Air-water duct Keeping free.......................................... 340 Index
483

Au
tomatic driving lights ...........................13 4
Au tomatic engine start (ECO start/
sto p function)............................................ 173
Au tomatic engine stop (ECO start/
sto p function)............................................ 173
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
Fu nction of the automatic front
passenger front airbag deactivation
sy stem..................................................... 48
PA SSENGER AIR BAG indicator lamp....... 50
Au tomatic measures af ter an accident..... 54
Au tomatic mir rorfo lding function
Ac tivating/deactivating......................... 14 8
Au tomatic seat adjustment
Setting................................................... 105
Au tomatic transmission
DIRECT SELECT le ver............................. 180
Drive program display............................ 178Drive programs......................................
17 7
DY NA MIC SELECT switch...................... 17 7
Engaging drive position......................... 183
Engaging reve rsege ar........................... 181
Kickdown............................................... 184
Manual gear changing.......................... .183
Selecting park position.......................... 182
St eering wheel gearshift paddles.......... 183
Tr ansmission position displa y................ 180
Tr ansmission position s..........................180
Axle load Perm issible............................................ 391
Tr ailer operation.................................... 407 B
Bag hook .................................................... 12 3
Ball neck Extending/r etra cting............................ .268
Extending/r etra cting (MBUX multi‐
media sy stem)....................................... 269
BA S (Brake Assist Sy stem)....................... 201
Battery Remo tecontrol (s tationary heater)........ 15 8Battery
see Battery (vehicle)
Battery (k ey)
Re placing.................................................77
Battery (vehicle) Charging................................................ 361
Charging (Remo teOnline)...................... 16 4
No tes..................................................... 357
No tes (s tarting assis tance and
ch arging)............................................... 359
Re placing.............................................. 362
St arting assis tance................................ 361
Belt see Seat belt
Bic ycle rack
Load capacity........................................ 406
Tr ailer operation.................................... 272
Blind Spot Assi st
Ac tivating/deactivating......................... 234
Fu nction................................................ 232
Sy stem limitations................................. 232
Blo wer
see Climate control Index
485

0099
AdBlue sy stem fault Engine
st art not possible................................. .464
0099 AdBlue sy stem fault See Own‐
er's Manual .......................................... .463
00B3 Add 1 litre engine oil when
next refuelling....................................... 465
é ATTENTION ASSIST inoperative ....434
é ATTENTION ASSIS T:Take a
break!....................................................4 35
: Automatic driving lights inoper‐
ative....................................................... 414
006F Cannotfold 2nd seat rowfor‐
wa rds See Owner's Manual................... 423
Á Change key bat teries .................... 412
004D Check brake fluid le vel................. 433
ï Check trailer hitch lo ck................. 419
0077 Check tyre(s)................................4 59
003A Clean the fuel filter ...................... 426
00C4 Compressor is cooling .................449 ÿ
Coolant Stop vehicle Switch
engine off..............................................4 25
á Currently unavailable Camera
view restricted....................................... 445
¸ Currently una vailable Radar
sensors dirty.........................................4 44
0025 currently una vailable See Own‐
er's Manual .......................................... .450
00E5 currently una vailable See Own‐
er's Manual ............................................ 451
00B3 Engine oil le vel cannot be
measured .............................................. 466
00B3 Engine oil le velRe duce oil le vel.... 465
00B3 Engine oil le velSt op vehicle
Switch engine off.................................. 465
00B3 Engine oil pressure Stop
Switch off engine.................................. 466
ä Fault Drive at max. 80 km/h
...................................................... 446,447
ä Fault Stop.....................................4 470075
Front left malfunction Consult
wo rkshop (e xample).............................. 409
003B inoperative Battery low................. 417
003B inoperative Refuel vehicle .............4 17
003B inoperative See Owner's Man....... 417
0025 inoperative See Owner's Manual .. 451
00E5 inoperative See Owner's Man‐
ual......................................................... 452
007A inoperative See Owner's Man‐
ual......................................................... 453
0053 Inoperati ve................................... 454
î inoperati ve................................... 439
: Intelligent Light Sy stem inoper‐
ative....................................................... 41 5
Á Key being initialised Please wait...4 13
Á Key not de tected (red displ ay
messa ge)............................................... 413
Á Key not de tected (white display
messa ge)............................................... 412
: Left dipped beam (e xamp le)........ .414 490
Index

0075
Left windowbag malfunction
Consult workshop (e xample)................ .409
00C5 Lowe ring...................................... 448
: Malfunction See Owner's Man‐
ual..........................................................4 14
î Max. speed 40 km/h...................4 39
ð Maximum speed exceeded ........... 438
î Notpossible in cur rent drive
program ................................................ 439
00C8 ..................................................... 462
ç Off................................................ 437
00D9 Off................................................ 434
ï Operation only possible in
transmission position P ..........................41 8
0024 Parking brake See Owner's
Manual .................................................. 430
00C4 Please reduce speed .................... 448
00D9 Please wait 48 V battery charg‐
ing ........................................................ .457
0077 Rectify tyre pressure.................... 460 00C8
Refill Ad Blue See Owne r’s
Manual.................................................. 462
0024 Release parking brake .................. 433
009E Replace air cleaner ...................... 426
Á Replace key.................................. 412
00B6 Reser vefuel le vel......................... 426
0075 Restra int sys. malfunction Con‐
sult workshop........................................ 409
003D See Owner's Manual....................4 55
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual ...... 421
Ù Steering malfunction Stop
immediately See Owner's Manual ......... 421
003D Stop vehicle Lea veengine run‐
ning ....................................................... 456
003D Stop vehicle See Owner's Man‐
ual......................................................... 456
ç suspended................................... 436
: Switch off lights............................4 15
: Switch on headlamps.................... 41 500C8
Top up AdBlue Emergency op.
in XXX miles See Owner's Manual......... 462
00BD Top up coolant See Owner ’s
Manual.................................................. 424
00B2 Top up washer fluid ...................... 423
ï Trailer coupling extending….......... 419
0024 Turn on the ignition torelease
th e parking brake..................................4 33
0072 Vehicle is operational Switch
off ignition before exiting....................... 41 8
00C4 Vehicle rising Please wait............ .448
00C4 Vehicle rising................................4 48
0077 Warning tyre defect..................... .460
0077 Wheel sensor(s) missing.............. 459
00C8 XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss................................................ 463
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual ...........442
Ac tive Blind Spot Assi stinope rative ...... 443 Index
491