ETS/4ETS(Electronic Tractio nSystem)
ETS/4ETS traction control is pa rtof ESP®.
ETS/4ET Scan impr ovethev ehicle's traction by
inter vening in thef ollowing ways:
RThe driv ewheels ar ebrake di ndividually if
th ey spin.
RMor edrive torque is transferred tothew heel
or wheels wit htraction.
Influence of driv eprograms on ESP
®
The driv eprograms enable ES P®toadap ttod if‐
fe re nt we ather and road conditionsasw ell asth
ed rive r's prefer redd riving style. Youc an
select thed rive prog rams using theD YNAMIC
SELECT switch.
15 0
Driving and pa rking
RWhenthes ystemisa ctivelysteering, the
è symbol is shown in green in them ulti‐
function displa y.
St eering Pilo tsysteml imitations
St eering Pilo thas alimited steering torque for
lateral guidance. In some cases ,the steering
inter ventio nisn otsuff icien ttok eepthev ehicle
in thel ane.
If de tection of lane markings and vehicles ahead
is impaired, Steering Pilo tswitches topassive
mode. The èsymbol in them ultifunction dis‐
pla yiss hown in gr ay.T he sy stem pr ovides no
suppor tinthis case.
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing situations:
RIfth er eisp oor visibility ,e.g. due toinsuf fi‐
cient illumination of ther oad, or due tosno w,
ra in, fogors pray .
RIfth er eisg lare, e.g. from oncoming traf fic,
dire ct sunlight or reflection from other vehi‐
cles (e.g. if ther oad sur face is wet).
RIfth ew indshield is dirty ,fogged up, damaged
or co vered, fori ns tance byasticker,in the
vicinity of thec amera.
RIf no, or se veral, unclear lane markings are
presentf or one lane, e.g. in aconstruction
area.
RIf th el ane marking sarewo rnaw ay,d arko r
co veredu p, e.g. bydirtors now.
RIfth ed ista nce tothev ehicle in front is too
small and thel ane markings thus canno tbe
de tected.
RIfth el ane marking schang equickl y,e.g.
lan
es branc hoff,c ross one ano ther or
mer ge.
RIfth er oad is nar rowa nd winding.
Rifth er ea rehighly variable shade conditions
on ther oad.
RObs tacle ssuchast raffic wa rning signsl oca‐
te dont he lane or projecting out int othe lane
ar en otdetected.
The sy stem does no tprovide assis tance in the
fo llowing conditions:
ROn very shar pbends.
RWhen towing atrailer.
RIfyo ua ctivel ychang elane without switch ing
on thet urns ignal indicator.
RIfyo us witch onthet urns ignal indicator and
th ec onditions fora ctivating ActiveL ane
Chang eAssistaren otfulfilled.
Information on theS teering Pilot
St eering Pilo tisonlyana id.Youa re re sponsible
fo rt he dis tance tothev ehicle in front, forv ehi‐
cle speed, forb raking in good time and fors tay‐
ing in your lane .Befor echanging lanes, make
sur ethat then eighboring lane is free (shoulder
view).
Ac tiv eL aneC hang eAssis t
% Thea vailabilityoft hefollowing function is
countr y-dependent.
St eering Pilo tremain sactiv eevenift he tur nsig‐
nal indicator is switched on. Steering Pilo tthen
assists thed rive rw hen changing lane sbyapply‐
ing steering torques toinitiat ethe lane change.
16 6
Driving and pa rking
#Slidethew heel tobe mounted ont othe cen‐
te ring pi nand push it on.
&
WARNING Risk of injury from tightening
whee lbolts and nuts
If yo ut ighten thew heel bolts or wheel nuts
when thev ehicle is raised, thej ackc ould tip.
#Onl ytighten wheel bolts or wheel nuts
when thev ehicle is on theg round.
#Fo rs afet yr easons, Mercedes-Benz recom‐
mend sthat youo nly use wheel boltswhich
ha ve been appr oved forM ercedes-Benz vehi‐
cles, as well as fort he wheel in question.
* NO
TEDama getopaintwor kofthe wheel
ri mw hen scr ewing on thef irst whee lbolt
If th ew heel has toom uchp layw hen scr ew‐
ing in thef irst whee lbolt, th ew heel rimp aint
can be dama ged.
#Press thew heel firm lyagains tthe
whee lhub when scr ewing on thef irst
wheel bolt.
#Ti ghten thew heel bolts until they aref inger-
tight.
#Un scr ew thec entering pin.
#Tighten thel astw heel bolt until it is finger-
tight.
#Lo we rthe vehicle(→pag e338).
Loweri ngthev ehicle af teraw heelchange
Re quirementsRThe ne wwheel has been mounted
(→pag e337).
#Place ther atche tbox wrenc hontot he he xa‐
gon nut of thej acksot hatthel ette rs "AB"
ar ev isible.
#To lowe rthe vehicle: turnthe ratche tbox
wrenc hofthe jac kcounter-clockwise.
#Tighten thew heel bolts evenlyinac rosswise
patter ninthe sequence indicated (1 to5).
Specified tightening torq ue: 111 lb-ft
(150 Nm).
& WARNING Risk of accident duetoi ncor‐
re ct tigh tening torque
Th ew heelsc ould come loose if thew heel
bolts or wheel nuts ar enottightened tothe
prescribed tightenin gtorque.
#Ha ve thet ightening torque checked
immediatel yataqualified specialist
wo rkshop af terc hanging awheel.
338
Wheels and tires
