2019 MERCEDES-BENZ S-CLASS CABRIOLET wheel bolts

Obser
vethefo llowing information: Note
s on cleaning and car eA voiding vehicle damage
Wheels/rims Usewate r and acid-free wheel cleaners. R
Do not use acidic wheel cleaners toremo vebrake dust.
This could damage wheel bolts and brake components.
R Toavoid cor rosion of the brake discs and brakepads, drive
th eve hicle for a few minutes af ter cleaning before parking
it. The brake discs and brakepads warm up and dry out.
Wi ndo ws
Cleanthe windo wsonthe inside and outside using a damp
clo thand cleaning agents recommended byMercedes-Benz. Do not use dry clo
ths or abrasive or sol vent-based cleaning
agents toclean the inside of windo ws.
Wi per blades
Fold out the wiper blades and clean them using a damp clo th.D o not clean the wiper blades too of ten.
Ex terior lighting
Cleanthe lenses with a wet sponge and mild cleaning agent,
e.g. car sha mpoo. Only use cleaning agents or cleaning clo
thsth at are suitable
fo r plast ic lenses.
Sensors Cleanthe sensors in the front and rear bumper and in the
ra diator grill with a soft clo thand car shampoo. When using a po
werwa sher, maintain a minimum dis tance of
11 .8 in (30 cm).
Re ar view camera
and 360° Camera R
Open the camera co ver with the multimedia sy stem
(→ page 190).
R Use clean water and a soft clo thtoclean the camera lens. Do not use a po
werwa sher.
Ta ilpipes
Clean with cleaning agents recommended byMercedes-Benz,
particular lyin the winter and af terwa shing theve hicle. Do not use acidic cleaning agents. Maintenance and care
353

#
Using the lug wrench, loosen the wheel bolts
on the wheel you wish tochange byabout
one full turn. Do not unscr ewthe bolts com‐
ple tely. Po
sition of jack support points &
WARNING Risk of inju ryfrom incor rect
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. #
Only 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. *
NO
TEVehicle damage from the jack If
yo 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. #
The jack is designed exclusively for
jacking up theve hicle at the jack sup‐
port points. #
Take thera tchet out of the tire-change tool
kit and place it on the he xagon nut of the
jack so that the letters "AUF" are visible. 402
Wheels and tires

#
Position jack 2at jack support point 1.#
Turn ratchet 3clockwise until jack 2sits
comple tely on jack support point 1and the
base of the jack lies evenly on the ground. #
Turn ratchet 3until the tire is raised a maxi‐
mum of 1.2 in (3 cm) from the ground. #
Loosen and remo vethe wheel (→ page 403). Re
moving a wheel Re
quirements:
R The vehicle is raised (→ page 401).
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may not recog‐
nize dangers.
When changing a wheel, avoid applying any force
to the brake discs, since this could impair the
le ve l of com fort when braking.
* NO
TEDama getothre ading from dirt on
wheel bolts #
Do not place wheel bolts in sand or on
a dirty sur face. #
Unscr ew the uppermost wheel bolt com‐
ple tely. #
Screw alignment bolt 1instead of the
wheel bolt into theth re ading. #
Unscr ew there maining wheel bolts fully. #
Remo vethe wheel. #
Installth e new wheel (→ page 403). Mounting a new wheel
Re
quirements:
R The wheel is remo ved (→ page 403).
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may not recog‐
nize dangers. Wheels and tires
403

&
WARNING 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. #
Never oil or grease theth re ads. #
Intheeve nt of damage totheth re ads,
con tact a qualified specialist workshop
immediatel y. #
Have the damaged wheel bolts or dam‐
aged hub thre ads replaced. #
Do not continue driving. #
Obser vethe information on thech oice of
tires (→ page 396).
Fo r tires with a specified direction of rotation, an
ar row onthe side wall of the tire indicates the
cor rect di rection of rotation. Obse rveth e direc‐
tion of rotation when ins talling. #
Slide the wheel tobe mounted onto the
alignment bolt and push it on. &
WARNING Risk of inju ryfrom tightening
wheel bolts and nuts
If yo u tighten the wheel bolts or wheel nuts
when theve hicle is raised, the jack could tip. #
Only tighten wheel bolts or wheel nuts
when theve hicle is on the ground. #
Be sure toobser vethe instructions and
saf ety no tes on "Changing a wheel"
(→ page 396). #
For saf etyre asons, on lyuse wheel bolts
which ha vebeen appr ovedby Mercedes-
Benz and forth e wheel in question.
* 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. #
Press the wheel firm lyagainst the
wheel hub when scr ewing on thefirst
wheel bolt. #
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated until they are
fi nger-tight. #
Unscr ew the alignment bolt. #
Tighten the last wheel bolt until it is finger-
tight. #
Lowe rth eve hicle (→ page 404). Lo
weri ngtheve hicle af ter a wheel change Re
quirements:
R The new wheel has been ins talled
(→ page 403). #
Place thera tchet onto the he xagon nut of the
jack so that the letters "AB" are visible. #
Tolowe r the vehicle: turnthera tchet of the
jack counter-clo ckwise. 404
Wheels and tires

#
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated (1 to5 ).
Specified tightening torq ue: 111 lb-ft
(150 Nm). &
WARNING Risk of inju rythro ugh incor‐
re ct tigh tening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed tightening torque. #
Makesure the wheel bolts or wheel
nuts are tightened tothe prescribed
tightening torque. #
Ifyo u are not sure, do not mo vethe
ve hicle. Consult a qualified specialist
wo rkshop and ha vethe tightening tor‐
qu ech ecked immediately. #
Check the tire pressure of the newly moun‐
te d wheel and adjust according ly. #
Vehicles with a tire pressure monitoring
sy stem: Restart the tire pressure monitoring
sy stem (→ page 383).
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tire pressure (→ page377) Wheels and
tires405