RThe blowerfor thev entilation/heating is
swit ched off.
RThe windshield wipe rswitchisinp osition
g.
RIn car washes wit haconveyo rs ystem: neu‐
tral iis engaged.
RThe SmartK eyis at adista nce of at least
10 ft(3 m) away from thev ehicle, otherwise
th et runk lid could open unintentionall y.
% If, af tert he car wash, your emo vethew ax
from thew indshield and wiper rubber ,this
will pr event smearing and reduce wiper
noise.
Information on using apowe rwasher
&
WARNING Risk of accident whe nusing
high-pressur ecleaning equipment wi th
ro und-s pray nozzles
The wate rjet from around-spr aynozzle( dirt
grinder) ma ycause damage totires and sus‐
pension components that is no tvisible.
Component sdamaged in this wa ym ayfail
unexpec tedly.
#Do no tuse high-pressur ecleaning
equipment wi thround-spr aynozzles to
clean your vehicle.
#Damaged tires or suspension compo‐
nentsm ustber eplaced immediatel y.
Toavo id damag etoyourvehicle, obser vethef ol‐
lowing when using apowerwa sher:
RKeep theS martK eyat leas t10ft(3m)a way
from thev ehicle. Otherwise thet runk lid
could open unintentionall y.
RMaintainadista nce of at leas t11.8i n
(30 cm) tothev ehicle.
RVehicles with deco rativ efoil: parts of your
ve hicle ar ecove redw ithad ecorativ efoil.
Maintain adista nce of at leas t27.6i n
(70 cm) between thef oil-co veredp arts of the
ve hicle and then ozzle of theh igh pressure
cleaner .Move thep owe rwashern ozzle
around whils tcleaning.
RObser vethei nformation on thec orrect dis‐
ta nce in thee quipment manufacturer's oper‐
ating instructions.
RDo no tpoint then ozzle of thep owerwa sher
directl yatsensitiv eparts suc hastires, slits,
electrical component parts, batteries, light
sources and ventilation slot s.
Washing the vehicl ebyh and
Observethel egal requirements, e.g. in anumber
of countries, washing byhand is onl ypermitted
in specially designated wash ba ys.
#Use amild cleaning agent, e.g. car shampoo.
#Washthev ehicle wit hlukewa rmwate rusing
as oftc ar sponge. When doing so, do not
ex pose thev ehicle todirect sunlight.
#Carefully hose thev ehicle of fwithw ater and
dr yu sing achamois. Take car enot to point
th ew ater je tdirectl ytow ards thea ir inlet
grille.
Maintenanc eand care 327
Unifor mT ireQ uality Grading Standards: a
unifor mstandar dtog rade theq ualityoft ires
wit hregar dtot read quality, tiret raction and
te mp eratur echaracteristics. The qualityg rading
assessment is made bythem anufacturer follow‐
ing specifications from theU .S. go vernment. The
qu alityg rade of atireisi mprinted on thes ide
wa ll of thet ire.
Re commende dtirep ressure :th er ecommen‐
ded tir epressur eist he tir epressur especified
fo rt he tires mounted tothev ehicle at thef ac‐
to ry.
The tir eand information table conta insther ec‐
ommended tir epressures forc old tires, them ax‐
imum permissible load and them aximum per‐
missible vehicle speed.
The tir epressur etable con tains ther ecommen‐
ded tir epressures forc old tires under various
operating conditions, i.e. loading and/or speed
of thev ehicle.
Increased vehicl eweight due tooptional
equipment: thec ombined weight of all standard
and optional equipment available fort he vehicle, re
ga rdless of whe ther it is actually ins talled on
th ev ehicle or not.
Rim: thep artoft he wheel on whic hthe tir eis
ins talled.
GA WR (Gross Axl eWeight Rating): theG AWR
is them aximum permissible axle load. The
actual load on an axle mus tnever exc eed the
gros saxle weight rating .The gross axl eweight
ra ting can be found on thev ehicle identification
plat eont he B‑pillar on th
ed rive r's side.
Speed rati
ng: thes peed rating is pa rtof thet ire
identification .Itspecifies thes peed rang ef or
whic hatireisa pprove d.
GV W( Gross Vehicl eW eight): theg ross vehicle
we ight comprises thew eight of thev ehicle
including fuel, tools, thes par ew heel, accesso‐
ri es ins talled, occupants, luggag eand thet railer
dr aw bar nose weight,ifa pplicable. The gross
ve hicle weight mus tnotexc eed theg ross vehicle
we ight rating GVWR as specified on thev ehicle
identification plat eonthe B‑pillar on thed rive r's
side.
GV WR (Gross Vehicl eW eight Rating): the
GV WR is them aximum permitted gross weight of
thef ully laden vehicle (weight of thev ehicle
including all accessories, occupants, fuel, lug‐
ga ge and thet railer dr awbar nose weight if appli‐
cable). The grossvehicle weight rating is speci‐
fi ed on thev ehicle identification plat eonthe
B‑pi llaronthed rive r's side.
Maximum weight of thel aden vehicle: the
maximu mweight is thes um of thec urb weight
of thev ehicle, thew eight of thea ccessories, the
maximu mloada ndthew eight of optional equip‐
ment ins talled at thef actor y.
Kilopasca l(kP a): metr icunit fort irep ressure .
6.9 kP acorresponds to1p si.A nother unit for
tir ep ressur eisb ar.1 00 kilopasca l(kPa) equals
1b ar.
Load index: in additiontothel oad-bearing
index, thel oad inde xmayalso be imprinted on
th es ide wall of
thet ire. This specifies thel oad-
bearing capacit
y of thet irem orep recisel y.
Cur bw eight: thew eight of avehicle wit hstand‐
ar de quipment includingt he maximum capacity
of fuel, oil and coolant. It also includes thea ir
conditionin gsystema nd optional equipment if
372
Wheels and tires
Functio n............................................... 172
Sy stem limitations .............................. .172
Ad aptiv ecruise control
see ActiveD ista nce Assist DISTRONIC
Ad aptiv eHighbeam Assist
Fu nctio n............................................... 117
Switching on/of f.................................. 118
Ad ditive s.................................................. 390
Engine oil ............................................ 390
Fu el ..................................................... 390
Ad ditive s(engine oil)
see Additives
Ad ditive s(fuel)
see Fuel
Ad dres sbook
see Contacts
Ad justin gthe balance/ fader
Burmes ter
®high-end 3D sur round
sounds ystem. ..................................... 318
Burmes ter
®sur round sounds ystem. ...3 17 Ad
justin gthe bass, mid- rang ea nd
treble
Burmes ter
®high-end 3D sur round
sounds ystem ....................................... 317
Ad justin gthe mid- range, treble and
bass
Burmes ter
®high-end 3D sur round
sounds ystem ....................................... 317
Ad justin gthe sound focus
Burmes ter
®sur round sounds ystem. ...3 17
Ad justin gthe sound optimization
Burmes ter
®high-end 3D sur round
sounds ystem ...................................... 318
Ad justin gtreble, mid- rang ea nd bass
settings
Burmes ter
®high-end 3D sur round
sounds ystem ............ ........................... 317
ADS PL USdamp ing sy stem
see AI RBODYC ONTROL
Af ter-sales service center
see ASS YSTP LUS
Air bag ........................................................ 38
Ac tivation .............................................. 32 Bel
tairba g. ........................................... 36
Fr ont air bag (driver ,fro nt passenger) ... 38
Ins tallation locations ............................ .38
Knee airbag ........................................... 38
Overvie w............................................... 38
Pr otection ............................................. .39
Re duced pr otection .............................. .40
Sid eimpac tairba g. .............................. 38
Wi ndo wcurtain air bag .......................... 38
AIR BODY CONT ROL................................ .176
Setting ................................................. 178
Suspensio n.......................................... 176
Air conditioning sy stem
see Climat econtrol
Air distribution ........................................ .127
Air freshener sy stem
see Frag rance sy stem
Air pressure see Tire pressure
Air suspension see AIR BODY CONTROL
Air vents ................................................... 132
Ad justing (front) .................................. 132
Index 459