2018 MERCEDES-BENZ E-CLASS CABRIOLET tires

00BBUsingthe wheel wrench, loosen the wheel
bolts on the wheel youwish tochange by
about one full turn. Do not unscr ewthe bolts
comple tely.Po sition of jack support points
0071
WARNING Risk of injury from incorrect
positioning of the jack
If yo u do not position the jack cor rectly at
th e appropriate jacking point of theve hicle,
th e jack could tip with theve hicle raised.
00BBOnly position the jack at the appropri‐
ate jacking point of theve hicle. The
base of the jack must be positioned ver‐
tically under the jacking point of the
ve hicle.
0075 NO
TEVehicle damage from the jack
Ifyo u do not position the jack cor rectly at
th e appropriate jack support point of the
ve hicle, the jack could tip over with theve hi‐
cle raised.
00BBThe jack is designed exclusively for
jacking up theve hicle at the jack sup‐
port points.
00BBTa ke thera tchet ring spanner out of the tire-
ch ange tool kit and place it on the he xagon
nut of the jack so that the lettering "AUF" is
visible.
Wheels and tires 37
9

00BBPosition jack 2at jack support point 1.
00BBTurn ratchet ring spanner 3clockwise until
jack 2sits comple tely on ja cksupport point
1 and the base of the jack lies evenly on
th e ground.
00BBContinue toturn ratchet ring spanner 3
until the tire is raised a maximum of 1.2 in
(3 cm) off the ground.
00BBLoosen and remo vethe wheel (→page 380).
Re moving a wheel
Requirement:RThe vehicle is raised (→page 378).
When changing a wheel, avoid applying any forc e
to the brake discs, since this could impair the
le ve l of com fort when braking.
0075 NO
TEDama getothre ading from dirt on
wheel bolts
00BBDo not place wheel bolts in sand or on
a dirty sur face.
00BBUn scr ew the uppermost wheel bolt com‐
ple tely.
00BBScr ew centering pin 1instead of the wheel
bolt into theth re ading.
00BBUn scr ew there maining wheel bolts fully.
00BBRe mo vethe wheel.
00BBIns tallth e new wheel (→page 380).
Installing a new wheel
Re quirement:RThe wheel is remo ved (→page 380).
380
Wheels and tires

0071WARNING 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 cause the wheel bolts/
wheel nuts tocome loose.
As a result, you could lose a wheel while driv‐
ing.
00BBNe ver oil or grease theth re ads.
00BBIn theeve nt of damage totheth re ads,
con tact a qualified specialist workshop
immediatel y.
00BBHave the damaged wheel bolts or dam‐
aged hub thre ads replaced.
00BBDo not continue driving.
00BBObser vethe information on thech oice of
tires (→page 373).
Fo r tires with a specified direction of rotation, an
ar row onthe side wall of the tire indicates the
cor rect dire ction of rotation. Observ eth e direc‐
tion of rotation when ins talling.
00BBSlide the wheel tobe mounted onto the cen‐
te ring pin and push it on.
0071
WARNING Risk of injury from tightening
wheel bolts and nuts
If yo u tighten the wheel bolts or wheel nuts
when theve hicle is raised, the jack could tip.
00BBOnly tighten wheel bolts or wheel nuts
when theve hicle is on the ground.
00BBFo r saf etyre asons, only use wheel bolts
which ha vebeen appr ovedby Mercedes-
Benz and forth e wheel in question.
0075 NO
TEDama getopaintwork of the wheel
ri m when scr ewing on thefirs t wheel bolt
If th e wheel has too much play when scr ew‐
ing in thefirs t wheel bolt, the wheel rim paint
can be dama ged.
00BBPress the wheel firm lyagainst the
wheel hub when scr ewing on thefirs t
wheel bolt.
00BBTi ghten the wheel bolts until they are finger-
tight.
00BBUn scr ew the centering pin.
00BBTighten the last wheel bolt until it is finger-
tight.
00BBLo we rth eve hicle (→page 381).
Lo weri ngtheve hicle af ter a wheel change
Re quirements:RThe new wheel has been ins talled
(→page 380).
00BBPlace thera tchet ring spanner onto the he xa‐
gon nut of the jack so that the lettering "AB"
is visible.
00BBTo lowe r the vehicle: turnthera tchet ring
spanner of the jack anti-clockwise.
Wheels and tires 381

00BBTighten the wheel bolts evenly in a diagonal
pattern in the order indicated (1 to5).
Specified tightening torq ue: 111 lb-ft
(150 Nm).
0071 WARNING Risk of accident due toincor‐
re ct tigh tening torque
Th ewheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed tightening torque.
00BBHa ve the tightening torque checked
immediately at a qualified specialist
wo rkshop af terch anging a wheel.
00BBCheck the tire pressure of the newly moun‐
te d wheel and adjust according ly.
00BBVe hicles with tire pressure loss warning
sy stem: Restart the tire pressure loss warn‐
ing sy stem (
→page 360).
00BBVe hicles with a tire pressure monitoring
sy stem: Restart the tire pressure monitoring
sy stem (
→page 359).
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
RNotes on tire pressure (→page 354)
382
Wheels and tires

Displaymessages
Possible causes/consequences and 0050Solutions
00CC
9HKLFOH 5LVLQJ 3OHDVH :DLW*T
hevehicle le vel is too lo w.The vehicle will be raised tothe selected vehicle le vel.
00BBWa it until the display message disappears before pulling away.
00CC
6WRS 9HKLFOH 9HKLFOH 7RR
/RZ *Y
ou ha vepulled away despite theve hicle le vel being too lo w.
00BBPull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
The vehicle will be raised tothe selected vehicle le vel.
00BBWa it until the display message disappears before pulling away.
If th e display message does not disappear and a warning tone also sounds, AIR BODY CONTROL/DYNAMIC BODY
CO NTROL is malfunctioning:
00BBDo not drive fasterthan 50 mph (80 km/h) and consult a qualified specialist workshop immediatel y.
0075 NO
TEThe tires of the front axle or the front fende rscould be damaged bylarge steering mo vements
00BBAv oid large steering mo vements while driving and lis tenfo r scraping sounds.
00BBIf yo u hear scra ping sounds, pull over and stop theve hicle safely, paying attention toroad and traf fic con‐
ditions, and set a higher vehicle le vel if possible.
00BBSet a higher vehicle le vel.
Depending on the malfunction, theve hicle is raised.
41 4
Displ aymessage s andwarning/indicator lamps

Tire s
Displa ymessages
Possible causes/consequences and 0050Solutions
&KHFN 7LUH 3UHVVXUH 6RRQ *C
anada only :
The tire pressure loss warning sy stem has de tected a significant loss in pressure.
0071
WARNING Risk of an accident due toinsuf ficient tire pressure
Ti re pressures that are too low pose thefo llowing hazards:
RThe tires may bur st, especially as the load and vehicle speed increase.
RThe tires may wearexc essively and/or une venly, which may greatly impair tire traction.
RThe driving characteristics, as well as steering and braking, may be greatly impaired.
Yo u could then lose control of theve hicle.
00BBObser vethere commended tire pressure.
00BBAd just the tire pressure if necessar y.
00BBStop theve hicle, paying attention toroad and traf fic conditions.
00BBCheck the tire pressure and the tires.
00BBWhen the tire pressure is cor rect, restart the tire pressure loss warning sy stem.
Display messages and warning/indicator lamps 425

Displaymessages
Possible causes/consequences and 0050Solutions
&KHFN 7LUH 3UHVVXUH 7KHQ
5HVWDUW 5XQ )ODW ,QGLFDWRU *C
anada only :
The tire pressure loss warning sy stem generated a displ aymessage and has not been restar ted since.
00BBWhen the tire pressure is cor rect, restart the tire pressure loss warning sy stem.
5XQ )ODW ,QGLFDWRU ,QRSHUD
WLYH *C
anada only :
The tire pressure loss warning sy stem is malfunctioning.
00BBVi sit a qualified specialist workshop.
0077
3OHDVH &RUUHFW 7LUH 3UHV
VXUH *T
he tire pressure is too low in at least one of the tires, or the tire pressure dif fere nce between the wheels is too
great.
00BBCheck the tire pressure and add air, if necessar y.
00BBWhenthe tire pressure is cor rect, restart the tire pressure monitoring sy stem.
426
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and 0050Solutions
0077
&KHFN 7LUHV*T
he tire pressure in one or more tires has dropped significantl y.The wheel position is displa yed.
0071
WARNING Risk of an accident due toinsuf ficient tire pressure
Ti re pressures that are too low pose thefo llowing hazards:
RThe tires may bur st, especially as the load and vehicle speed increase.
RThe tires may wearexc essively and/or une venly, which may greatly impair tire traction.
RThe driving characteristics, as well as steering and braking, may be greatly impaired.
Yo u could then lose control of theve hicle.
00BBObser vethere commended tire pressure.
00BBAd just the tire pressure if necessar y.
00BBStop theve hicle, paying attention toroad and traf fic conditions.
00BBCheck the tire pressure and the tires.
Display messages and warning/indicator lamps 427