
Display messages
Possible causes/consequences and M
MSolutions
8 Reserve fuel level *T
he fuel le vel has dropped into there ser verange. #
Refuel.
Ø
Eng. start not possible in
XXX mi *
The AdBlue ®
sy stem is malfunctioning. #
Consult a qualified specialist workshop immediatel y.
¸
Replace air cleaner *
Ve hicles with a diesel engine: the engine air filter is dirty and must be replaced. #
Consult a qualified specialist workshop.
Ø Eng. start not possible *
The AdBlue ®
sy stem is malfunctioning. You can no lon gerst art the engine. #
Consult a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 471

Display messages
Possible causes/consequences and M
MSolutions
Ø Refill AdBlue No start in
XXX mi *
The AdBlue ®
leve l is only suf ficient forth e displa yed dis tance. #
Refill Ad Blue ®
immediately .
% The message disappea rsafte r driving at a speed abo ve15 km/h for appro ximately one minu te.
# Start engine See Owner's
Manual *T
he engine is off and the battery charge leve l is too lo w. #
Switch off electrical consumers that are not required. #
Lea vethe engine running for a few minutes, or drive for a longer dis tance.
The battery charge s.
!
Clean the fuel filter *
Ve hicles with a diesel engine: thewate r inthe fuel filter must be drained off. #
Consult a qualified specialist workshop. 472
Displaymessa ges and warning/indicator lamps

Au
tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .139
Au tomatic transmission
DIRECT SELECT le ver ........................... 16 2
Drive program display .......................... 161
Drive programs .................................... 16 0
DY NA MIC SELECT switch .................... 16 0
Engaging drive position ....................... 16 4
Engaging reve rsege ar ........................ .164
Kickdown ............................................. 16 5
Manual gearshifting ............................ .165
Selecting park position ........................ 16 4
Shifting toneutral ................................ 16 4
St eering wheel gearshift paddles ........ .165
Tr ansmission position display .............. 16 2
Tr ansmission positions ........................ 16 2
Au tomatic transmission
see Selector le ver
Axle load Perm issible .......................................... 423
Tr ailer operation .................................. 436 B
Ball neck Extending/r etra cting ........................... 238
BA S (Brake Assist Sy stem) .................... .181
Battery Key ........................................................ 66
Re mo tecontrol (s tationary heater) ...... 14 9
Battery (vehicle) Charging .............................................. 389
Notes ................................................... 387
St arting assis tance .............................. 389
Battery (vehicle) see Vehicle battery
Belt .............................................................32
Belt airbag Activation .............................................. 31
Fu nction/no tes .....................................35
Bic ycle rack
Tr ailer operation .................................. .241
Blind Spot Assi st..................................... 232
Ac tivating/deactivating ...................... .234
Fu nction/no tes ................................... 232
Sy stem limits ....................................... 232 Blind Spot Assist
see Active Blind Spot Assi st
Blo wer
see Climate control
BlueTEC see AdBlue ®
Blue tooth ®
Ac tivating/deactivating ...................... .278
Setting up an Internet connection ....... 330
Settings ............................................... 277
Switching profile (DUN/PAN) .............. 332
Blue tooth ®
Au dio
Ac tivating ............................................ 349
De-authorising (de-regis tering) the
device .................................................. 349
Information .......................................... 346
Overview .............................................3 47
Sea rching for and auth orisingthe
device .................................................. 348
Switching device via NFC .................... 349
Boot box see EASY -PAC K boot box Index
513

Ac
tive Lane Keeping Assist Camera
view restricted See Owner's Manual ... 458
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........457
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 457
bAc tive Light Sy stem inoperative .. 491
Ad aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 493
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .493
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .492
4Ad d 1 litre engine oil when next
re fuelling ............................................. 469
Air conditioning Malfunction See
Owner's Manual .................................. 485 Apply brake
todeselect Park (P)
position ...............................................4 81
À ATTENTION ASSIST inoperative ... 454
ÀAT TENTION ASSIS T:Take a
break! .................................................. 454
bAU TOlights inope rative ............... 492
Au xilia rybattery malfunction .............. 484
_Before starting the engine, turn
th esteering wheel. .............................. 485
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 459
Blind Spot Assist inope rative ............... 459
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 62
Brake immediate ly............................... 447
 Changekey bat teries ...................4 78
Ø Check AdBlue See Owne r’s
Manual ................................................ 470
J Check brake fluid le vel................ 4474
Check eng. oil le v.when next
re fuelling ............................................. 467
jChe cktrailer hitch lo ck............... 481
hCheck tyre(s) ............................... 474
! Clean the fuel filter ...................... 472
Clutch overheated Avoid pulling away
fo r XX:XX mins ................................... .484
É Compressor is cooling .................457
? Coolant Stop vehicle Switch
engine off ............................................ 465
Cruise contro l and Limiter inope ra‐
tive ....................................................... 461
Cruise control inope rative ................... 463
Cruise control off ................................. 461
!cu rrently unavailable See Own‐
er's Manual ........................................ .438
÷cur rently una vailable See Own‐
er's Manual ........................................ .440
Depress clutch ful lyto start engine .....4 84
Dis tance Pilot available again .............. 460 Index
519

Re
ar window
Ro ller sunblind ...................................... .78
Re ar window heater ................................ 141
Re ar-view mir ror
see Outside mir rors
Re cycling
see Take -ba ckof end-of-life vehicles
Re ducing agent
see AdBlue ®
Re fuelling
Re fuelling theve hicle .......................... 16 6
To pping up AdBlue ®
............................. 17 0
Re gistration
Ve hicle ................................................... 27
Re mo tecont rol (stationa ryheater)
Displ ays ............................................... 14 9
Problems ............................................. 15 0
Re placing the battery .......................... 14 9
Setting ................................................. 14 8
Re mo teParking Pilot .............................. 222
Auth orising a mobile phone ................. 226
Fu nction/no tes ................................... 222
Operating ............................................ 223 Sy
stem limitations ...............................2 22
Re placing a bulb
see Changing bulbs
Re scue card ............................................... 27
Re ser ve
Fu el ..................................................... 429
Re set function (multimedia sy stem) .....2 84
Re storing (factory settings)
see Reset function (multimedia sy stem)
Re stra int sy stem
Children ................................................ .45
Fu nction in an accident ......................... 31
Fu nctionality .......................................... 31
Malfunction ...........................................31
Pr otection ..............................................30
Re duced pr otection ...............................30
Sy stem self-test .....................................31
Wa rning lamp ........................................ .31
Re stra int sy stem
see Occupant saf ety
Re turning an end-of-li fevehicle
Pr otection of the environment ............... 21Re
versege ar
Selecting ............................................. 16 4
Re versing camera .................................... 211
Assigning as a favo urite ...................... .217
Care .................................................... .374
Fu nction ............................................... 211
Opening the camera co ver ................... 217
Switching au tomatic mode on/off ....... 216
Re versing light (changing bulbs) ...........133
RF transmitters see Two-w ayradios
Rims (Care) ...............................................3 74
Ro llaw ay protection
see HOLD function
Ro ller sunblind
Re ar wind ow.......................................... 78
Side windo ws........................................ 78
Ro ller sunblind
see Co ver
Ro of lining (care) .................................... .376
Ro of load .................................................. 434
Ro ofrack .................................................. 11 4 Index
537