
R
The lane markings are worn, dark or co vered.
R The dis tance totheve hicle in front is too
small and the lane markings thus cannot be
de tected.
R The lane markings change quickl y,e.g. lanes
branch off, cross one ano ther or mer ge.
R The road is very nar row and winding.
Ve hicles with Driving Assistance pac kage or
Driving Assistance Plus pa ckage: Active Lane
Ke eping Assist uses radar sensors tomonitor
se veral areas around theve hicle. If thera dar
sensors in there ar bumper are dirty or co vered
with sn ow,th e sy stem may be impaired or may
not function. If an obs tacle in the lane in which
yo u are driving has been de tected, no lane-cor‐
re cting brake application occu rs.
Ac tivating Active Lane Keeping Assist &
WARNING Risk of accident despi te
Ac tive Lane Keeping Assist warning
A lane-cor recting brake application cannot
al wa ys bring theve hicle back into the origi‐
nal lane. #
Alw aysst eer, brake or accelera teyour‐
self, especially if Active Lane Keeping
Assist warnsyo u or makes a lane-cor‐
re cting brake application. &
WARNING Risk of accident despi teinter‐
ve ntion of Active Lane Keeping Assist
Ac tive Lane Keeping Assist does not de tect
traf fic conditions or road users. In very rare
cases, the sy stem may make an inappropri‐
ate brake application, e.g. af ter intentional ly
driving over a solid lane marking.
The brake application can be inter rupte d at
any time if yousteer slightly in the opposite
direction. #
Alw ays make sure that there is suf fi‐
cient di stance tothe side forot her traf‐
fi c or obs tacles. &
WARNING Risk of accident despi teLane
Ke eping Assist
Lane Keeping Assist cann otalw ays clearly
de tect lane markings. In su
chcases, Lane Keeping Assist can:
R give an unnecessary warning
R not give a warning #
Alw ays pay particular attention tothe
traf fic situation and keep within the
lane, especially if Active Lane Keeping
Assist alerts you. Re
quirement:
The driving speed is at least 60 km/h. 236
Driving and parking

Obser
vethefo llowing when selecting, fitting and
re placing tyres:
R Countr y-specific requirements for tyre
appro valth at define a specific tyre type for
yo ur vehicle.
Fu rthermore, the use of cer tain tyre types in
cer tain regions and areas of operation can
be highly beneficial.
R Only use tyres and wheels of the same type
(summer tyres, winter tyres, MOEx tended
tyres) and the same make.
R Only fit wheels of the same size on one axle
(left and right).
It is only permissible tofit a di fferent wheel
size in theeve nt of a flat tyre in order to
drive tothe specialist workshop.
R Only fit tyres of the cor rect size onto the
wheels.
R Do not make any modifications tothe brake
sy stem, the wheels or the tyres.
The use of shims or brake dust shields is not
permitted and may in validate theve hicle's
ge neral operating pe rmit. R
Vehicles with a tyre pressure monitoring
sy stem: Allfitted wheels mu stbe equipped
with functioning sensors forth e tyre pres‐
sure monitoring sy stem.
R Attemp eratures below 7 °C, use winter tyres
or all-season tyres mar ked M+S for all
wheels.
Wi nter tyres bearing thei snowflake
symbol in addition tothe M+S marking pro‐
vide the best possible grip in wintry road
conditions.
R For M+S tyres, only use tyres with the same
tread.
R Obser vethe maximum permissible speed for
th e M+S tyres fitted.
If th is is below theve hicle's maximum speed,
th is must be indicated in an appropriate label
in the driver's field of vision.
R Run in new tyres at moderate speeds forthe
fi rs t10 0 km.
R Replace the tyres af ter six years at the latest,
re ga rdless of wear. R
When replacing with tyres that do not
fe ature run-flat characteristics: Vehicles
with MOExtended tyres are not equipped
with a TIREFIT kit at thefa ctor y.Equip the
ve hicle with a TIREFIT kit af terre placing with
tyres that do not feature run-flat characteris‐
tics, e.g. winter tyres.
Fo r more information on wheels and tyres, con‐
ta ct a qualified specialist workshop.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (→ page 402)
R Tyre pressure table (→ page 403)
R Notes on the emer gency spa rewheel
(→ page 419) Note
s on inter changing wheels &
WARNING Risk of inju rythro ugh dif fer‐
ent wheel sizes
Inter changing the front and rear wheels if the
wheels or tyres ha vediffere nt dimensions 412
Wheels and tyres

Pa
rking Pilot Manoeuvring assis‐
ta nce limited See Owner's Manual ...... 463
ÂPlace theke y in the mar ked
space See Owner's Manual .................479
É Please reduce speed ...................4 56
PRE-SAFE impulse side inope rative
See Owner's Manual ...........................449
PRE-SAFE inoperative See Owner's
Manual ................................................ 448
Ra dar sensors dirty See Owner's
Manual ................................................ 449
h Rectify tyre pressure ....................474
Ø Refill Ad Blue Eng. start not pos‐
sible .................................................... .470
ØRe fill Ad Blue No start in XXX mi ..472
Ø Refill Ad Blue See Owne r’s Man‐
ual .......................................................4 70
!Re lease parking brake .................443
¸Re place air cleaner ......................471,
Replace key See Owner's Man‐
ual ...................................................... .478
 Replace key ................................ .477
8 Reser vefuel le vel........................ 471
6 Restra int sys. malfunction Con‐
sult workshop ...................................... 450
Re versing not poss. Consult work‐
shop ....................................................4 83
Risk of vehicle rolling Driver door
open and transmission not in P ...........482
#See Owner's Manual ................... 466
Speed limit (winter tyres) XXX mph..... 462
#St art engine See Owner's Man‐
ual ...................................................... .472
Ð Steering malfunction Drive
carefully Visit workshop ......................4 86
ÐSt eering malfunction Incre ased
ph ysical ef fort See Owner's Manual .... 487
ÐSt eering malfunction See Own‐
er's Manual ......................................... 485 ÐSt
eering malfunction Stop
immediately See Owner's Manual .......487
St eering Pilot cur rently una vailable
See Owner's Manual ............................ 461
St eering Pilot inoperative ..................... 461
St op vehicle Lea veengine running
Wa itTransmission cooling ...................483
#St opvehicle Lea veengine run‐
ning ..................................................... 467
#St opvehicle See Owner's Man‐
ual .......................................................4 66
ÉSt opvehicle Vehicle too low ........ 456
bSwitch off lights .......................... 492
bSwitch on headlamps .................. 492
To shift out of P or N,depress brake
and start engine .................................. 482
To p up coolant See Owner ’sManual ... 464
¥To p upwasher fluid .................... .490
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 458 Index
521

Tr
af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 462
Tr af fic Sign Assi stinope rative ............. 462
jTr ailer coupling extending… ......... 480
Tr ansmission Malfunction Stop ........... 483
!Tu rnon the ignition torelease
th e parking brake ................................ 442
Ty re press. monitor cur rently una vail‐
able .................................................... .475
Ty re press. monitor inoperative ............476
Ty re press. monitor inoperative No
wheel sensors ...................................... 476
Ty re pressure Check tyres ...................473
Ty re(s) ove rheated ...............................4 76
Ty re(s) ove rheated Reduce speed ........477
d Vehicle is operational Switch
off the ignition before exiting .............. 483
ÉVe hiclerising Please wait............ 454
ÉVe hiclerising ...............................4 54
h Warning tyre defect .....................475 h
Wheel sensor(s) missing ..............476
Wi thout changing gear, consult work‐
shop ....................................................4 82
Dist ance control
see Dis tance Pilot DISTRONIC
Di stance Pil otDISTRONIC ...................... .193
Ac tivating ............................................ 19 6
Ac tivation conditions ........................... 19 6
Calling up a speed .............................. .196
Deactivating ........................................ 19 6
Fu nction .............................................. 19 3
Le ver ................................................... 19 6
Selecting ............................................. 19 6
Setting a speed ................................... 19 6
St oring a speed ................................... 19 6
Sy stem limits ....................................... 19 3
Distance recorder .................................... 24 9
DISTRONIC see Di stance Pilot DI STRONIC
Door Additional door lock .............................. 68
Locking (emer gency key) ...................... .72
Opening (from inside) ............................68 Un
locking (emer gency key) .................... 72
Un locking (from inside) ........................ .68
Door see Locking/unlocking
Door cont rol panel .................................... .16
Drive Away Assist .................................... 226
DRIVE PIL OT............................................. 200
Fu nction .............................................. 200
Drive position Selecting ............................................. 16 4
Drive prog ram display ............................. 161
Drive prog rams
see DYNA MIC SELECT
Driver's seat see Seat
Driving abroad Symmetrical dipped beam ...................1 23
Driving light see Automatic driving lights
Driving saf ety sy stem ............................ .179
ABS (Anti-lock Braking Sy stem) ........... 180
Ac tive Brake Assi st.............................. 185522
Index

Ad
aptive brake lights .......................... .190
BA S (Brake Assi stSystem) ...................1 81
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 184
ESP ®
(Electronic Stability Prog ram)
Crosswind Assist ................................. 184
ESP ®
(Electronic Stability Prog ram)
trailer stabilisation .............................. .184
Overview ............................................. 180
Ra dar sensors ...................................... 17 9
Re sponsibility ...................................... 17 9
Driving saf ety sy stem
see ESP ®
(Elect ronic Stability Prog ram)
Driving sy stem
DY NA MIC BODY CONTROL .................. 205
Driving sy stem
see 360° Camera
see Active Blind Spot Assi st
see Active Lane Keeping Assist
see AIR BODY CONTROL
see ATTENTION ASSIST
see Blind Spot Assist
see Cruise control
see Dis tance Pilot DISTRONIC see DRIVE PIL
OT
see Driving saf ety sy stem
see HOLD function
see Limiter
see Parking Assist PARKTRONIC
see Parking Pilot
see Remo teParking Pilot
see Reversing camera
see Speed Limit Pilot
see Steering Pilot
see Traf fic Sign Assi st
Driving tips Driving abroad (symmetrical dipped
beam) .................................................. 12 3
Gene ral driving tips ............................ .156
Ru nning-in no tes ..................................1 56
Dr ow siness de tection
see ATTENTION ASSIST
Dr ow siness warning
see ATTENTION ASSIST
DY NA MIC BODY CONT ROL
Suspension .......................................... 205
Dynamic handling control sy stem
see ESP ®
(Elect ronic Stability Prog ram) Dynamic multicontour seat
Setting .................................................. .97
DY NA MIC SELECT ................................... .160
Configu ring drive program I ................. 161
Displ aying engine data ........................ .161
Displ aying vehicle data ........................ 161
Drive prog ram display ......................... .161
Drive prog rams ................................... .160
Fu nction .............................................. 16 0
Operating (DYNAMIC SELECT switch) .. 161 E
E10 ............................................................ 426
Easy entry feature
Operation/no tes ................................. 103
Setting ................................................. 103
Easy exitfeature
Operation/no tes ................................. 103
Setting ................................................. 103
EAS Y-PA CK boot box ................................ 11 3
Ad justing the height toany position .... .111
Care .................................................... .376
Ins talling/ removing .............................. 11 3 Index
523