wheel alignment MERCEDES-BENZ AMG GT S 2017 C190 Owner's Manual

Page 243 of 290

Where will I find...?
Vehicle tool kit
General notes
Apart from certain country-specific variations,
the vehicles are not equipped with a tire-change
tool kit. If the vehicle is equipped with tire-
changing tools, these are located in the left-
hand stowage compartment behind the service
flap in the cargo compartment. 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 spe-
cialist workshop.
Tools required for changing a wheel may
include, for example:
RJack
RWheel chock
RLug wrench
RRatchet wrench
RAlignment bolt
The vehicle tool kit is located in the left-hand
stowage compartment behind service flap :in
the cargo compartment.
XOpen the tailgate.
XTurn fastener ;on the service flap to the left.
XOpen service flap :.
Vehicles with a TIREFIT kit
:Towing eye
;Tire inflation compressor
=Alignment bolt
?Tire sealant filler bottle
XUse the TIREFIT kit (Ypage 242).
Vehicles with a tire-change tool kit
:Lug wrench
;Towing eye
=Tire inflation compressor
?Alignment bolt
AFolding wheel chock
BTire sealant filler bottle
CJack
XUse the TIREFIT kit (Ypage 242).
iExample: equipment and country-specific
variations possible.
Where will I find...?241
Breakdown assistance

Page 277 of 290

XUsing lug wrench=, loosen the bolts on the
wheel you wish to change by about one full
turn. Do not unscrew the bolts completely.
The jacking point is centered between the front
and rear wheel arches (arrow).
XPosition jack Aat jacking point ?.
XMake sure that the base of the jack is posi-
tioned directly under the jacking point.
XTurn crankBclockwise until jack Asits
completely on jacking point ?and the base
of the jack lies evenly on the ground.
XTurn crank Buntil the tire is raised a maxi-
mum of 1.2 in (3 cm) off the ground.
Removing a wheel
!AMG ceramic high performance compound
brake system:
When detaching or attaching the wheel, the
wheel rim may hit against the ceramic brake
disc and damage it.
For this reason, you should proceed carefully.
Request the assistance of a second person or
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.
Changing a wheel275
Wheels and tires
Z

Page 278 of 290

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 272).
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.
!AMG ceramic high performance compound
brake system:
When detaching or attaching the wheel, the
wheel rim may hit against the ceramic brake
disc and damage it.
For this reason, you should proceed carefully.
Request the assistance of a second person or
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.
: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.
276Changing a wheel
Wheels and tires