
ESP
®
can moni tora nd impr ovedriving stability
and traction in thef ollowing situations, within
ph ysical limits:
R When pulling away on wetors lipper ycarria‐
ge wa ys.
R When braking.
R Vehicles with traile rhitch: In trailer opera‐
tion from speeds of 65 km/h ,ifthevehicle/
trailer combination begins tosw ay from side
to side.
R Instro ng sidewinds when youa redriving
fa ster than 80 km/h.
If th ev ehicle deviates from thed irection desired
by thed rive r,ESP ®
can stabilise thev ehicle by
inter vening in thef ollowing ways:
R One or mor ewheels ar ebrake d.
R The engine output is adap teda ccording to
th es ituation.
ESP ®
is deactivated if theE SP®
OFF å warn‐
ing lam plight supc ontinuousl yinthe instrument
clus ter:
R Driving stabilit ywill no lon gerbei mprove d. R
Vehicles with traile rhitch: Stabilisation of
th ev ehicle/trailer combinatio nisnol onger
active.
R Crosswind Assis tisnolonger active.
R The driv ewheels could spin.
R ETS/4ETS traction control is still active.
% Even when ESP ®
is deactivated, youa restill
assis tedbyE SP®
when braking.
ESP ®
is inter vening if theE SP®
÷ warning
lam pflashes in thei nstrument clus ter:
R Do no tdeacti vate ESP ®
.
R Only depress thea ccelera torp eda lasf ar as
is necessar y.
R Adapty our driving styletos uitthec urrent
ro ad and weather conditions.
Deactivat eESP®
in thef ollowing situations to
impr ovetraction:
R When using sno wchains.
R In deep sno w.
R On sand or gr avel. %
Spinning thew heels results in acutting
action whic hprovide sbette rg rip.
ESP ®
is deactivated if theå ESP®
OFF warn‐
ing lam plight supc ontinuousl yinthe instrument
clus ter.
If th eE SP®
÷ warning lam plight supc ontinu‐
ousl y,ESP ®
is no tavailable due toam alfunction.
Obse rvea nyinformation whic hmaybe displa yed
in thei nstrument clus ter:
R Warning and indicator lamps (→ page522)
R Displa ymessages (→ page465)
ETS/4ET S(Electronic Tractio nSystem)
ETS/4E TStraction control is pa rtof ESP ®
and
makes it possible topull away or accelerat eona
slipper ysurface.
ETS/4ET Scan impr ovethev ehicle's traction by
inter vening in thef ollowing ways:
R The driv ewheels ar ebrake di ndividually if
th ey spin.
R Mor edrive torque is transferred tothew heel
or wheels wit htraction. Driving and parking
197

mak
esuret hat then eighbouring lane is free
(shoulder view).
% The availabilit yofthefollowing function is
countr y-dependent.
Ac tiveS teering Assis tremain sactiv eevenift he
tur ns igna lindica toriss witched on. ActiveS teer‐
ing Assis tthen assists thed rive rw hen changing
lane sbya pplying steering torques toinitiat ethe
lane change.
Assis tance when changing lane sisprovide difa ll
th ef ollowing condition sareme t:
R Youa redrivin gonam otorway or high-speed
multi-lane major road wit hmultiple lane sin
th ed irection of tr avel.
R The neighbouring lane is free and separated
by ab roke nl ane marking.
R The driven spee disbetwe en 80 km/h and
18 0k m/h.
R The tur nsigna lindicator is switched on for
longer than tw oseconds.
If th es ystem is impaired, ActiveL aneC hange
Assi stma ybec ancelled. If an inter ruption
occurs, display 1appear sinthe multifunction displa
yalong wit hawarning tone prom pting you
to take control of thev ehicle. Ste
ering and contact de tection
Ac tiveS teering Assis trequires youast he driver,
to keep your hands on thes teering wheel at all
times so that youa reable tointer vene at any
time tocor rect thec ourse of thev ehicle and
ke ep it in lane. The driver mus texpect achange
from activ etopassivemode or vice versaata ny
time.
If yo ua renots teering yourself or if yout ake
yo ur hands of fthe steering wheel forap ro‐
longed period of time, thes ystemw ill, depend‐
ing on thes ituation ,first aler tyou wit havisual wa
rning. 1appear sinthe multifunction displa y.
If yo ua restill no tsteering thev ehicle yourself or
if yo uh ave nottaken hold of thes teering wheel,
aw arning tone sounds in additio ntothewarning
messag etoremind youtot akec ontrol of the
ve hicle.
The warning messag edoes no tappear or disap‐
pear sifo ne of thef ollowing condition sareme t:
R The driver steer sthe vehicle.
R The driver presses asteering wheel button or
operates Touc hC ontrol.
Fu nction of Activ eE me rgency Stop Assist
If th ed rive rc ontinues toigno rethea coustic
wa rning of ActiveL aneC hangeA ssist,A ctive
Dis tance Assi stDISTRONI Creduces thes peed.
If th ed rive rs tilld oes no trespond, thev ehicle is
decelerated in stages toas tandstill.
The driver can cancel thed eceleration at any
time byper form ing one of thef ollowing actions:
R Steering
R Braking or accelerating
R Pressing asteering wheel button or operat‐
ing Touc hC ontrol Drivin
gand parking 217

&
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