wheel alignment MERCEDES-BENZ C-CLASS CABRIOLET 2018 Owner's Manual

Towing eye
The towing eye is located in the stowage well
under the trunk floor.
XTo remove:open the trunk lid.
XLift the trunk floor up (Ypage 267).
XRemove towing eye :.
Vehicles with a TIREFIT kit
Removing the TIREFIT kit
:Tire inflation compressor
;Tire sealant filler bottle
The TIREFIT kit is located in the stowage well
under the trunk floor.
XTo remove: open the trunk lid.
XLift the trunk floor up (Ypage 267).
XUse the TIREFIT kit (Ypage 298).
Vehicles with a tire-change tool kit
General notes
Apart from certain country-specific variations,
the vehicles are not equipped with a tire-change
tool kit.
Some tools for changing a wheel are specific to the vehicle. For more information on which tire
changing tools are required and approved to
perform a wheel change on your vehicle, consult
a qualified specialist workshop.
Necessary tire-changing tools can include, for
example:
RJack
RWheel chock
RLug wrench
RAlignment bolt
Flat tire
Preparing the vehicle
Your vehicle may be equipped with:
RMOExtended tires (tires with run-flat proper-
ties) (Ypage 297)
Vehicle preparation is not necessary on vehi-
cles with MOExtended tires
Ra TIREFIT kit (Ypage 296)
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory. It
is therefore recommended that you additionally
equip your vehicle with a TIREFIT kit if you mount tires that do not feature run-flat properties, e.g.
winter tires. A TIREFIT kit may be obtained from
a qualified specialist workshop.
Vehicles with an mbrace system (USA only) that
are not equipped with a TIREFIT kit: in the event
of a flat tire, contact the Customer Assistance
Center of the mbrace emergency call system
(
Ypage 272).
Information on changing and mounting wheels
(
Ypage 332).
XStop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
XSwitch on the hazard warning lamps.
XSecure the vehicle against rolling away
(Ypage 143).
296Flat tire
Breakdown assistance

Removing a wheel
!Mercedes-AMG vehicles with ceramic-
brake disc: during removal and repositioning
of the wheel, the wheel rim can strike the
ceramic-brake disc and damage it. Therefore,
you should proceed carefully and get a sec-
ond person assist to you. Alternatively, you
can use a second alignment bolt.
!Do not place wheel bolts in sand or on a dirty
surface. The bolt and wheel hub threads could
otherwise be damaged when you screw them
in.
When mounting/removing wheels, and for as
long as the wheels are removed, avoid applying
any external force on the brake disks. This could
impair the level of comfort when braking.
XUnscrew the uppermost wheel bolt com-
pletely.
XScrew alignment bolt :into the thread
instead of the wheel bolt.
XUnscrew the remaining wheel bolts fully.
XRemove the wheel.
Mounting a new wheel
GWARNING
Oiled or greased wheel bolts or damaged
wheel bolts/hub threads can cause the wheel bolts to come loose. As a result, you could
lose a wheel while driving. There is a risk of
accident.
Never oil or grease wheel bolts. In the event of
damage to the threads, contact a qualified
specialist workshop immediately. Have the
damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving.
GWARNING
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip
over. There is a risk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
Always pay attention to the instructions and
safety notes in the "Changing a wheel" section
(
Ypage 331).
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea-
sons, Mercedes-Benz recommends that you
only use wheel bolts which have been approved for Mercedes-Benz vehicles and the respective
wheel.
!Mercedes-AMG vehicles with ceramic-
brake disc: during removal and repositioning
of the wheel, the wheel rim can strike the
ceramic-brake disc and damage it. Therefore,
you should proceed carefully and get a sec-
ond person assist to you. Alternatively, you
can use a second alignment bolt.
!To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
XClean the wheel and wheel hub contact sur-
faces.
XSlide the wheel to be mounted onto the align-
ment bolt and push it on.
XTighten the wheel bolts until they are finger-
tight.
XUnscrew the alignment bolt.
XTighten the last wheel bolt until it is finger-
tight.
Changing a wheel335
Wheels and tires
Z