387
Operation
Ty res andwh eels
Th ewh eels canbe inte rcha ng ed every
5, 000 to10
,00 0k mdepending on the de-
gree of tyre wea r,provided th attheveh icle
wh eelsareof thesa me size .Do not re-
verse the direction of tyre rotation.
Th e wea rpatter ns on the front andr ear
wh eels dif fer de pendi ngon th eoperating
condi tion s.Interchange the wh eelsbefore
too de finite awe arpattern ha sfo rm ed
on the tyr es.The front tyres typ ical ly wear
more on the oute rsh ou lder and th ere ar
tyres in the centr e.
Clea nthe contac t surfaces ofthew heel
an d the brake dis cthoroughly every time
aw heelisinter chan ged . Check the tyre
pr essure and reactivate th etyr epressure
monitor *if nece ssary. !
Elec tronic comp onent swill be locat edinthe
wheel if your ve hicle is fitt ed wit haty re pressure
monit or*.
Tyre fitt ing tools should notbe applied in the
ar ea of the va lve, as thisco uld dam agethe elec-
tr onic comp onent s.
Al ways have thety res replaced at a qualified
spe cialist workshop, e. g.a Mercede s-Be nz
Ser vice Centre. Int
erch angi ngthe wheels G
Risk of accide nt Only
interc hang eth efront andrear wheels if
th ey areof the same size .Th eha nd ling char-
ac teri stics of the vehic lema yotherwis ebe
af fe cted andy ou could endange ryo urse lfor
others. G
Risk ofaccide nt Ha
ve the tighten ing torq ueofthew heel
bo lts ch ecked afterevery wheel chang eat a
quali fied spe cial ist work shopwhich has the
necessa ryspe cialist know ledge and tools to
ca rry outth ew orkrequire d.Me rcede s-Be nz
re co mme ndsthat youuseaMerce de s-Be nz
Se rvic eCe ntre for this purpose .In particu-
lar, wor krele vant tosafety or on safety-re-
late d sys tems must be ca rried out at a
qu alified specialist workshop. G
Risk of acc ident The wheels cou
ldwork loose if the wheel
bo ltsa re not tightene dto a tightening
to rq ue of150 Nm.
Fo r saf etyre asons, Merced es-Ben z recom-
me ndsth at you on lyus ewheel bolts ofthe
co rrec tsize, andwhic h hav ebe en ap proved
for Merced es-Ben zveh icle s. 216_R
E_2006-12a.book Seit e387 Montag, 2. Oktob er2006 12:06 12
491
Practical advice
Flat tyre
1 Wheel bo lts fo r 17 ''light-allo ywh eels
2 Wheel bol tsfor the "Minispare" emer-
ge ncy spare wheel*
3 Wheel bo lts fo r 18 ''light-allo ywh eels
an d larger
! Youmustuse wheel bolts 1or2 when fit-
ti ng 17'' wheels or the "Minispare" *eme rgency
sp are wheel. If you use different wheel bolts
wh en fit ting 17'' wheels or the "Minispare"*
emergency spare wheel, this co uld da magethe
br ak e sys tem.
i Wheel bol ts2 are supp lied wit hth e emer-
gen cyspare wheel (no twit h17' 'tyres ). 6
Clea nthe wheelan dwh eel hub contac t
su rfaces.
6 Push the "Minispar e"emer gencysp are
whe el*orspar ewhe el* onto the cen-
tring pi nan d press it onfully.
6 Screw inthe wh eelb olts and tighten
the mgently.
6 Uns crew the centr ing pin.
6 Screw inthelast wheel boltan dtig hten
it ge ntly. Lowering
the vehicle
6 Turn the cra nkof the jack anti-clock-
wise until the vehicle is once again
st and ing firmly on th eground.
6 Plac e the jack to oneside.
1 to5 whe elbo lts
6 Tighte nthe wheel bolts ev enly in a
cr os swise pattern in sequen ce1 to
5 . The tighte ning torq uemu stbe
15 0Nm . P40.10-4638-31
P40.10-4639-31
= =216_R
E_2006-12a.book Seit e491 Montag, 2. Oktob er2006 12:06 12
