
The tyr
epressur eloss warning sy stem does not
re place then eed toregularly checkt he tyre
pressures.
Sy stem limitations
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing situations:
R Ifth et yrep ressur eiss etincor rectly.
R Ifth er eisas udden pressur eloss caused, for
ex ample, byaforeign object penetratin gthe
tyre.
R Ifth ep ressur eloss in se veraltyres decrea‐
ses at thes ame rate.
The sy stem has alimited or dela yedf unction:
R When ther oad sur face is poo r,e.g. sno wor
gr ave l.
R When drivin gwiths nowc hains.
R When driving in averys porty driving style
wit hh igh cornering speeds or sudden accel‐
eration.
R When towing averyh eavy or lar getraile r.
R When driving wit hahigh load. Be sur
etoalso obse rvet he following fur ther
re lated subjects:
R Notesont yrep ressur e(→pag e429)
R Displa ymessages about thet yres
(→ pag e502)
Rest arting thet yrep ress urel ossw arning
sy stem
Requ irement:
R The recommended tyr epressur eisc orrectly
se tfor ther espectiv eoperating condition on
eac hoft hefour wheel s(→ pag e429).
On-boar dcompu ter:
, Service .
Tyres
The Run Flat Indicato ractive Restart wit hOK
messag eisshown in them ultifunction displa y.
Re star tt he tyr epressur eloss warning sy stem in
th ef ollowing situations:
R The tyr epressur ehaschanged.
R The wheels or tyres ha vebeen changed or
newl yfitted. #
Press atobegin then ew start.
The Tyre pressure no wOK?messag eis
shown in them ultifunction displa y. #
Select Yes. #
Press atoconfir mtherestart.
The Run Flat Indicator restarted messageis
shown in them ultifunction displa y.
Af tery ou ha vedriven foraf ewminutes, the
tyr ep ressur eloss warning sy stem monitors
th es ettyr ep ressures of all thet yres.
Be sur etoalso obse rvet he following fur ther
re lated subjects:
R Notesont yrep ressur e(→pag e429) Wheel
change Note
sons electing, fittin gand replacing
tyres Mercedes
-AMG vehicles: observet he no tesin
th eS upplement .Otherwise, youm ayfailto rec‐
ognise dangers. 436
Wheel sand tyres

*
NO
TERisk todriving saf etyf romr etre a‐
de dt yres Re
treade dtyres ar eneith er tested nor rec‐
ommended byMercedes-Benz, since pr evi‐
ous damag ecanno talway sbed etected on
re treade dtyres.
Fo rthis reason drivin gsafet yc anno tbeg uar‐
anteed. #
Do no tuse used tyres if youh aveno
informatio nabout their pr evious usage. *
NO
TEPossible damag etowheels or
tyres when drivin govero bstac les Lar
gewheels ha vealow er tyr esection width.
The lo werthe tyr esection width, theg reater
is ther isk of dama getowheels or tyres when
drivin govero bstacles. #
Avoid obs tacle sord rive particular ly
carefully. *
NO
TEDama getoelectronic component
parts from theu se of tyre-fitting tools Ve
hicles with atyrep ressur emonitoring
sy stem: electronic component parts are
located in thew heel. Tyre-fitting tools should
no tbea pplied in thea reaoft hevalve.
The tools could damag ethe electronic com‐
ponent parts. #
Have thet yres changed at aqualified
specialis tworks hop onl y. *
NO
TEDama getosummer tyres at low
ambient temp eratures Using summer tyres at
very lowa mbient
te mp eratures can cause crac kstoform,
th ereb ydamaging thet yres permanentl y. #
Attemp eratures belo w7°Cuse M+S-
tyres. Ac
cessor yparts that ar enotappr ovedfor your
ve hicle byMercedes-Benzora renotb eing used
cor rectl yc an impair theo perating saf ety. Befor
epurch asing and using non-appr oved
accesso ries, visit aqualified specialis tworks hop
and enquir eabout:
R Suitability
R Legal stipulations
R Factor yrecommendations &
WARNING Risk of accident wi thhigh
per form anc etyres
The special tyr etread in combinatio nwith
th eo ptimised tyr ecompound, means that
th er isk of skidding or hydroplaning on wet
ro ads is inc reased.
In addition ,the tyr egripisg reatl yr educed at
al ow outside temp eratur eand tyr erunning
te mp erature. #
Switc hont he ESP ®
and adap tyour
driving stylea ccordingly. #
Use M+S tyres at outside temp eratures
of less than 50 °F. 438
Wheels and tyres

ma
yseve rely impair thed riving characteris‐
tics.
The disk brakes or wheel suspension compo‐
nents ma yalso be damaged. #
Rotate front and rear wheels on lyifthe
wheels and tyres ar eofthe same
dimensions. Inter
changing thef ront and rear wheels if the
wheels or tyres ha vediffere nt dimensions can
re nde rthe general operating pe rmit in valid.
The wear pat tern sont he front and rear wheels
dif fer:
R Front wheels wear mor eonthe shoulder of
th et yre
R Rear wheels wear mor einthe centre ofthe
tyre
On vehicles wit hthe same front and rear wheel
size, youc an inter chang ethe wheels every
5,000 to10,000 km, dependin gonthewear.
Ensur ethe direction of rotatio nism aintained for
th ew heels. It is imperativ
etoobservethei nstruction sand
saf etyn otes on "Wheel change" when doin gso. Note
sons toring wheels R
Afterr emoving wheels, stor et hem in acool,
dr ya nd preferably dar kplace.
R Protect thet yres from conta ct withoil,
grease or fuel. Overvie
wofthe tyre-chang etool kit Apar
tfroms ome countr y-specific variants, vehi‐
cles ar enotequipped wit hatyre-chang etool kit.
Fo rm orei nformation on which tyre-changing
to ols ar erequired and appr ovedfor per form ing a
wheel chang eony ourvehicle, consult aqualified
specialis tworks hop.
Re quired tyre-chang etool kits ma yinclude, for
ex ample:
R Jack
R Chock
R Whee lwrench
R Cent ring pin %
The jac kweighs appr oximatel y3.4kg.
The maximum pa yload of thej ackc an be
fo und on thes tickera ffixed tothej ack.
The jac kismaintenance-free. If ther eisa
malfunction, please conta ctaq ualified spe‐
cialis tworks hop.
The tyre-chang etool kit is in tool bag 1under
th el oad compartmen tfloor. 1
Tool bag
To ol bag 1contains:
R Jack
R Gloves
R Wheel wrench 440
Wheels and tyres

R
Centring pin
R Folding wheel chock
R Ratche tfor jack
Setting up thef olding wheel chock Prepa
ring thev ehicle foraw heelchange Re
quirements:
R The requ ired tyre-chang etool kit is available.
If yo ur vehicle is no tequipped wit hthe tyre-
ch ang etool kit, consult aqualified specialist
wo rkshop tofind ou tabout suitable tools.
R The vehicle is no tonaslope.
R The vehicle is on solid, non-slipper yand le vel
ground. #
Apply thee lectric parking brak emanually. #
Movethef ront wheels tothes traight-ahead
position. #
Vehicles with automatic transmission:
shif tint op osition j. #
Vehicles with AIRB ODYC ONT ROL:setthe
normal vehicle le vel(→pag e221). #
Swit chofft he engine. #
Mak esuret hat thee ngine cann otbe star ted. #
Place choc ks orother suitable items under
th ef ront and rear of thew heel that is diago‐
nall yopposit ethe wheel youw ish tochange. #
Remo vetheh ub caps if necessary
(→ pag e441). #
Raising thev ehicle (→ page442). Re
moving and fittin ghub caps Re
quirement:
R The vehicle is prepared foraw heelchange
(→ pag e441).
Plastic hub cap #
Toremo ve: turnthe centre coveroft he hub
cap anti-clockwise and remo vetheh ub cap. #
Tofit: mak esuret hat thec ent recoveroft he
hub cap is turned anti-clockwise. #
Position theh ub cap and tur nthe centre
co verc lockwise until theh ub cap engages
ph ysicall yand audibly. Wheels and tyres
441

Aluminiu
mhubcap #
Toremo ve: positio nsocket 2on hu bcap
1.
% The soc ketc an be found in thet yre-change
to ol kit. #
Position wheel spanner 3on soc ket2. #
Using whee lspa nner 3,turnh ub cap 1
anti-clo ckwise and remo veit. #
Tofit: position hub cap 1and tur nuntil it is
comple tely flush wit hthe wheel. #
Position soc ket2on hu bcap 1. #
Attach wheel spanner 3tosoc ket 2and
tighten theh ub cap clockwise.
Specified tightening torq ue: 25 Nm. #
Raise thev ehicle (→ page442). Ra
ising thev ehicle when changing awheel Re
quirements:
R Ther eareno persons in thev ehicle.
R The vehicle has been prepared foraw heel
ch ang e(→pag e441).
R Theh ub cap shave been remo ved
( → pag e441).
Impor tant no tesonu singthej ack:
R onlyusethev ehicle-specific jac kthat has
been tested and appr ovedbyM ercedes-Benz
to raise thev ehicle.
R thej ackiso nlyd esigned forr aising and hold‐
ing thev ehicle foras horttime while awheel
is being changed and no tfor maintenance
wo rkunder thev ehicle. R
thej ackm ustbep laced on afirm, flat and
non-slip sur face. If necessar y,use alarge,
load-bearing, non-slip underla y.
R thef ootoft he jac kmustbep ositioned verti‐
call yunder thej acking point. Ru
les of conduct when thev ehicle is raised:
R Neverp lace your hands or feet under the
ve hicle.
R Do no tlie under thev ehicle.
R Do no tstar tthe engine and do no trelease
th ee lectric parking brake.
R Do no topen or close an ydoor sort hetail‐
ga te. 442
Wheels and tyres

&
WARNING Risk of accident from losing a
wheel
Oiled, greased or damaged wheel bolt/wheel
nut thre ads or wheel hub/wheel mounting
bolt thre ads can caus ethe wheel bolts/
wheel nuts tocome loose.
As aresult, youc ould lose awheel while driv‐
ing. #
Nevero il or grease thet hreads. #
Inthee vent of damag etothethre ads,
con tact aq ualified specialis tworks hop
immediatel y. #
Have thed amaged wheel bolts or dam‐
aged hub thre ads replaced. #
Do no tcontinue driving. #
Obser vethei nformation on thec hoice of
tyres (→ page436).
Fo rtyres wit haspecified direction of rotation,
an ar rowonthes ide wall of thet yrei ndicates
th ec orrect di rection of rotation. Obse rvet he
direction of rotatio nw henf itting. #
Slide thew heel tobe mounted ont othe cen‐
tring pin and push it on. &
WARNING Risk of inju ryfrom tightening
whee lbolts and nuts
If yo ut ighten thew heel bolts or wheel nuts
when thev ehicle is raised, thej ackc ould tip. #
Onlytighten wheel bolts or wheel nuts
when thev ehicle is on theg round. #
Fors afet yr easons, onl yuse wheel bolts
whic hhaveb een appr ovedbyM ercedes-
Benz and fort he wheel in question. #
Tighten thew heel bolts until they aref inger-
tight. #
Unscr ew thec ent ring pin. #
Tighten thel astw heel bolt until it is finger-
tight. #
Lowe rthe vehicle (→ page445). Lo
weri ngthev ehicle af teraw heelchange Re
quirements:
R The ne wwheel has been fitted (→ page 444 ). #
Place ther atche tring sp anner ont othe he xa‐
gon nut of thej acksot hatthel ette ring "AB"
is visible. #
Tolowe rthe vehicle: turnthe ratche tring
sp an ner of thej acka nti-clockwise. #
Tighten thew heel bolts evenlyinad iagonal
patter ninthe order indicated (1 to5 ).
Specified tightening torq ue: 150N m. Wheels and tyres
445

;Engine diagnosi
swarning lam p... 535
åESP ®
OF Fw arning lam p............. .528
÷ESP ®
wa rning lam pflashes ........ .527
÷ ESP®
wa rning lam plight sup. ...... 527
8Fu elreser vewarning lam p......... .535
ÐPo wersteering sy stem warning
lam p................................................... .534
!Re dindicator lamp, elect ric
parkin gbrake applied .......................... 529
6Re stra int sy stem warning lam p... 530
7Sea tbeltw arning lam pflashes .... 531
7Seat belt warning lam plights
up ........................................................ 530
àSuspension warning lam p........... .531
j Trailer hit chwarning lam p........... 533
hTy repressur emonitoring sys‐
te mw arning lam pflashes .................. .539
hTy repressur emonitoring sys‐
te mw arning lam plight sup. ................ 538 !Ye
llowe lect ricp arkin gb rake
indicator lam pismalfunctionin g......... 529
Wa rning/indicator lamps .................10, 522
In stru ment displa y(ove rview) ................ 10
Overvie w............................................. 522
PA SSENGER AIR BAG. .......................... .42
Wa rranty ....................................................27
Wa sher fluid
see Windsc reen washer fluid
Wa shing byhand (care) .......................... 400
We ather information ............................... 334
We bbrows er
Calling up aweb pag e......................... 362
Call ingupo ptions ............................... 362
Calling up thes ettings .........................3 62
Deleting abookma rk........................... 363
Del eting br owser dat a.........................3 63
Ending ................................................. 363
Managing bookma rks. ......................... 363
Overvie w............................................. 362
Showing/hiding them enu ...................3 62
We bsite
Calling up ............................................ 362 Showing/hidin
gthe webb row ser
menu ................................................... 362
Whee lchange
Fitting anew wheel ............................ .444
Lo we ring thev ehicle ........................... 445
Preparation .......................................... 441
Ra ising thev ehicle .............................. 442
Re moving awhee l.............................. .444
Re moving/fitting hub caps .................. 441
Wheel change
see Emergency spa rewheel
Wheel chock
see Chock
Wheel rotation ........................................ .439
Wheels Care .................................................... 402
Changing hu bcaps. ............................. 441
Checkin g............................................. 428
Ch eckin gthe tyr epressur e(tyre
pressur emonitoring sy stem) ............... 432
Fitting .................................................. 444
Fla ttyre. .............................................. 409
Inter changing ...................................... 439
MOExtended tyres .............................. .409 Index
57 9