wheel alignment MERCEDES-BENZ S-Class COUPE 2016 C217 Owner's Manual

Useful information
i
This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops (
Ypage 26).
Where will I find...?
Vehicle tool kit
General notes
Apart from certain country-specific varia-
tions, 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 stowage well under the trunk floor. 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, con-
sult a qualified specialist workshop.
Tools required for changing a wheel may
include, for example:
RJack
RWheel chock
RLug wrench
RRatchet wrench
RAlignment bolt
Vehicles with a TIREFIT kit
Example
:Tire sealant filler bottle
;Towing eye
=Tire inflation compressor
XOpen the trunk lid.
XLift the trunk floor upwards (Ypage 303).
XUse the TIREFIT kit (Ypage 344).
Flat tire
Preparing the vehicle
Your vehicle may be equipped with:
Rtires with run-flat characteristics
(MOExtended tires) (
Ypage 343)
Vehicle preparation is not necessary on
vehicles with MOExtended tires
Ra TIREFIT kit (Ypage 342)
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory.
It is therefore recommended that you addi-
tionally 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 work-
shop.
Information on changing/mounting a wheel
(
Ypage 383).
XStop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
XSwitch on the hazard warning lamps.
342Flat tire
Breakdown assistance

XMake sure the foot of the jack is directly
beneath the jacking point.
XTurn ratchet wrenchBuntil jack Asits
completely on jacking point ?and the
base of the jack lies evenly on the ground.
XTurn ratchet wrench Buntil the tire is
raised a maximum of 1.2 in (3 cm) from the ground.
Removing a wheel
!Mercedes-AMG vehicles: during
removal and repositioning of the wheel, the
wheel rim can strike the ceramic-brake disc
and damage it. Therefore, you should pro-
ceed carefully and get a second 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 apply-
ing any external force on the brake disks. This
could impair the level of comfort when brak-
ing.
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" sec-
tion (
Ypage 383).
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
Changing a wheel387
Wheels and tires
Z

approved for Mercedes-Benz vehicles and the
respective wheel.
!Mercedes-AMG vehicles:during
removal and repositioning of the wheel, the
wheel rim can strike the ceramic-brake disc
and damage it. Therefore, you should pro-
ceed carefully and get a second 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
surfaces.
XSlide the wheel to be mounted onto the
alignment bolt and push it on.
XTighten the wheel bolts until they are fin-
ger-tight.
XUnscrew the alignment bolt.
XTighten the last wheel bolt until it is finger-
tight.
Lowering the vehicle
GWAR NING
The wheels could work loose ifthe wheel nuts
and bolts are not tightened to the specifie d
tightening torque. There isa risk of acc ident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel ischanged.
XPlace the ratchet wrench onto the hexagon
nut of the jack so that the letters ABare
visible.
XTurn the ratchet wrench until the vehicle is
once again standing firmly on the ground.
XPlace the jack to one side.
XTighten the wheel bolts evenly in a cross-
wise pattern in the sequence indicated ( :
to A). The tightening torque must be
110 lb-f t(150 Nm) .
XTurn the jack back to its initial position.
XStow the jack and the rest of the vehicle
tools in the trunk again.
XCheck the tire pressure of the newly moun-
ted wheel and adjust it if necessary.
Observe the recommended tire pressure
(
Ypage 365).
iVehicles with a tire pressure control sys-
tem: all mounted wheels must be equipped
with functioning tire pressure control sen-
sors.
Wheel and tire combinations
General notes
!
For safety reasons, Mercedes-Benz rec-
ommends that you only use tires and
wheels which have been approved by
Mercedes-Benz specifically for your vehi-
cle.
388Wheel and tire combinations
Wheels and tires