Flat ty
re Note
sonf lat tyres &
WARNING Risk of accident du etoaflat
tyre
Af lat tyr eseve rely affects thed riving charac‐
te rist ics as well as thes teering and braking
of thev ehicle.
Ty resw ithout run-flat characteristics: #
Do no tdrive on wit haflat tyre. #
Chang ethe flat tyr eimmediatel ywith
th ee mer gency spa rewheel or spare
wheel. Alternativel y,consult aqualified
specialis tworks hop.
Ty resw ithrun-flat characteristics: #
Obse rvet he information and warning
no tesonM OExtended tyres (run-flat
tyres). In
thee vent of aflat tyre, thef ollowing options
ar ea vailable dependin gonyourvehicle's equip‐
ment:
R Vehicles with MOExtende dtyres: it is pos‐
sibl etoc ontinu ethe journe yfor as hort
period of time. Mak esurey ou obser vethe
no tesonM OExtended tyres (run-flat tyres)
(→ pag e409).
R Vehicles with aTIREFIT kit: youc an repair
th et yresot hat it is possibletoc ontinuethe
journe yfor as hor tperiod of time. Todo this,
use theT IREFI Tkit (→ page411).
R Vehicles with Mercedes me connect: you
can mak eacallf or breakdown assis tanc ev ia
th eo verhead control panel in thec ase of a
breakdown (→ page352).
R Allvehicles: chang ethe wheel
(→ pag e441).
% Thee mergency spa rewheel is onl yavailable
in cer tain countries. MOExtended tyres (run-
flat tyres) &
WARNING Risk of accident whe ndriving
in li mp-hom emode
Whe ndriving in emergency mod ethe han‐
dling characteristic sareimpaired. e.g .when
cornering ,when accelerating stronglyand
when braking. #
Do no texceed thes pecified maximum
speed. #
Avoid an yabrup tsteering and driving
manoeuvres as well as drivin gover
obs tacle s(kerbs, po tholes, off-road).
Thi sapplies ,inparticular ,toal oaded
ve hicle. #
Stop driving in thee mer gency mod eif
yo un otice:
R bangin gnoise
R vehicle vibration
R smok ewhichs mells lik erubber
R continuous ESP ®
inter vention
R crac ksin tyr eside walls Breakdown assis
tance 409
&
WARNING Risk of accident du etoincor‐
re ct tigh tening torque
Th ew heel scould come loose if thew heel
bolts or wheel nuts ar enottightened tothe
prescribed torque. #
Have thet ightening torque checked
immediatel yataqualified specialist
wo rkshop af terc hanging awheel. #
Chec kthe tyr epressur eoft he newl ymoun‐
te dw heel and adjus taccording ly. #
Vehicles with tyr epressur elossw arning
sy stem: restar tt he tyr epressur eloss warn‐
ing sy stem (→ page436).
Exception: then ew wheel is an emer gency
spa rewheel. #
Vehicles with atyrep ressur emonitoring
sy stem: restar tt he tyr epressur emonitoring
sy stem (→ page432).
Exception: then ew wheel is an emer gency
spa rewheel. Mak
esuretoo bservethef ollowing fur ther rela‐
te ds ubjec t:
R Notesont yrep ressur e(→pag e429) Emer
gency spar ewheel Note
sont he eme rgency spar ewheel &
WARNING Risk of accident caused by
incor rect wheel and tyr edimensions
The wheel or tyr esize and thet yret ype of
th ee mer gency spa rewheel or spar ewheel
and thew heel tobe replaced ma ydiffe r.
Mounting an emer gency spa rewheel/spare
wheel ma yseve rely impair thed riving char‐
acteristics.
To preve nt hazardous situations: #
Adapty our driving stylea ccording lyand
driv ecarefull y. #
Neverfit mo rethan on eemer gency
spa rewheel or spar ewheel that dif fers
in size. #
Onlyuse an emer gency spa rewheel or
spar ewheel of adiffe re nt size brie fly. #
Do no tswitcho ffESP ®
. #
>Ha vethee mer gency spa rewheel or
spar ewheel of adiffe re nt size replaced
at then eares tqualified specialis twork‐
shop. The ne wwheel mus thave the
cor rect dimensions. Chec
kthe tyr epressur eoft he emer gency spa re
wheel fitted .Correct thep ressur easn ecessar y.
The maximum permissible speed wit hanemer‐
ge ncy spa rewheel fitted is 80 km/h.
Do no tfitth ee mer gency spa rewheel wit hsnow
ch ains.
Re place thee mer gency spa rewheel af ters ix
ye arsatt he latest, rega rdless of wear.
% Ve
hicles with atyrep ressur elossw arn‐
ing sy stem: If an emer gency spa rewheel is
fi tted thet yrep ressur eloss warning sy stem
cann otfunction reliabl y.Onl yrestart thes ys‐
te ma gain when thee mer gency spa rewheel
has been replaced wit hanewwheel. 446
Wheels and tyres
