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 320).
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.
XVehicles with a collapsible spare wheel:
inflate the collapsible spare wheel
(
Ypage 327).
Only then lower the vehicle.
Lowering the vehicle
GWARNING
The wheels could work loose if the wheel nuts and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed.
!Vehicles with a collapsible spare wheel:
before lowering the vehicle, inflate the col-
lapsible spare wheel with the tire inflation
compressor. The wheel rim could otherwise
be damaged.
XTurn the crank of the jack counter-clockwise
until the vehicle is once again standing firmly
on the ground.
XPlace the jack to one side.
324Changing a wheel
Wheels and tires
XLift the trunk floor upwards (Ypage 256).
XRemove stowage space:.
Removing the "Minispare" emergency
spare wheel
XTurn stowage well;counter-clockwise and
remove it together with vehicle tool kit
tray :.
XRemove "Minispare" emergency spare wheel
=.
Always observe the instructions and safety
notes in the "Mounting a wheel" section
(
Ypage 321).
Removing the collapsible spare wheel
(Mercedes-AMG vehicles)
The emergency spare wheel can be found in the
stowage well under the trunk floor.
XLift the trunk floor upwards (Ypage 256).
XReach into cutout :in the tool holder and lift
it up.
XRemove collapsible spare wheel ;.
Always observe the instructions and safety
notes in the "Mounting a wheel" section
(
Ypage 321).
Stowing a used collapsible spare
wheel
!
Only place the collapsible spare wheel in the
vehicle when it is dry. Otherwise, moisture
may get into the vehicle.
Take the following steps to stow a used collaps-
ible spare wheel. Otherwise, it will not fit into the spare wheel well. Mercedes-Benz recommends
that you have this work performed at a qualified
specialist workshop, e.g. at an authorized
Mercedes-Benz Center.
XUnscrew the valve cap from the valve.
XUse the back of the valve cap to unscrew the
valve insert from the valve and release the air.
iFully deflating the tires can take a few
minutes.
XScrew the valve insert back into the valve.
XScrew the valve cap back on.
XRemove the protective sheet from the vehicle
tool kit and pull it over the collapsible spare
wheel.
XStow the collapsible spare wheel in the emer-
gency spare wheel well under the trunk.
Inflating the collapsible spare wheel
!
Inflate the collapsible spare wheel using the
tire inflation compressor before lowering the
vehicle. The wheel rim could otherwise be
damaged.
!Do not operate the tire inflation compressor
for longer than eight minutes at a time without
a break. It may otherwise overheat.
The tire inflation compressor can be operated
again once it has cooled down.
Comply with the manufacturer's safety instruc-
tions on the tire inflation compressor label and
on the tire sealant bottle.
XMount the collapsible spare wheel as descri-
bed (Ypage 321).
The collapsible spare wheel must be mounted before it is inflated.
XRemove the tire inflation compressor from
the stowage space under the trunk floor
(
Ypage 286).
Emergency spare wheel327
Wheels and tires
Z
