Page 399 of 430

Securing the vehicle on slight downhill gradients
(example: Sedan)
X On light downhill gradients: place
chocks or other suitable items in front of
the wheels of the front and rear axle.
Raising the vehicle G
WARNING
If you do not position the jack correctly at the
appropriate jacking point of the vehicle, the
jack could tip over with the vehicle raised.
There is a risk of injury.
Only position the jack at the appropriate
jacking point of the vehicle. The base of the
jack must be positioned vertically, directly
under the jacking point of the vehicle.
! The jack is designed exclusively for
jacking up the vehicle at the jacking points.
Otherwise, your vehicle could be damaged.
Observe the following when raising the
vehicle:
R to raise the vehicle, only use the vehicle-
specific jack that has been tested and
approved by Mercedes-Benz. If used
incorrectly, the jack could tip over with the
vehicle raised.
R the jack is designed only to raise and hold
the vehicle for a short time while a wheel
is being changed. It is not suited for
performing maintenance work under the
vehicle.
R avoid changing the wheel on uphill and
downhill slopes. R
before raising the vehicle, secure it from
rolling away by applying the parking brake
and inserting wheel chocks. Never
disengage the parking brake while the
vehicle is raised.
R the jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a
large, load-bearing underlay must be used.
On a slippery surface, a non-slip underlay
must be used, e.g. rubber mats.
R do not use wooden blocks or similar
objects as a jack underlay. Otherwise, the
jack will not be able to achieve its load-
bearing capacity due to the restricted
height.
R make sure that the distance between the
underside of the tires and the ground does
not exceed 1.2 in (3 cm).
R never place your hands and feet under the
raised vehicle.
R never lie under the raised vehicle.
R never start the engine when the vehicle is
raised.
R never open or close a door or the trunk lid/
tailgate when the vehicle is raised.
R make sure that no persons are present in
the vehicle when the vehicle is raised.
AMG vehicles with Performance Studio
equipment: the wheel bolts are covered by a
hub cap. Before you are able to unscrew the
wheel bolts, you must first remove the hub
cap. Changing a wheel
397Wheels and tires Z
ProCarManuals.com
Page 400 of 430

X
To remove: turn the center cover of hub
cap :counter-clockwise and remove.
X To install: before installing, ensure that
hub cap :is in the open position. To do
so, turn the center cover counter-
clockwise.
X Place hub cap :in position and turn the
center cover clockwise until you feel and
hear hub cap :engage.
X Make sure that hub cap :is installed
securely. X
Using lug wrench ;, loosen the bolts on
the wheel you wish to change by about one
full turn. Do not unscrew the bolts
completely. Jacking points (example: Sedan)
The jacking points are located just behind the
front wheel housings and just in front of the
rear wheel housings (arrows).
AMG vehicles and vehicles with AMG
equipment: the vehicle has covers installed
next to the jacking points on the outer sills to
protect the vehicle body. Cover, front (example: vehicles with AMG Sports
package)
X
AMG vehicles and vehicles with AMG
equipment: fold cover=upwards. X
Position jack Aat jacking point ?. Example
X
Make sure the foot of the jack is directly
beneath the jacking point. 398
Changing a wheelWheels and tires
ProCarManuals.com
Page 401 of 430

X
Turn crank Bclockwise until jack Asits
completely on jacking point ?and the
base of the jack lies evenly on the ground.
X Turn crank Buntil the tire is raised a
maximum of 1.2 in (3 cm) off the ground.
Removing a wheel !
AMG vehicles: during removal and
repositioning of the wheel, the wheel rim
can strike the ceramic-brake disc and
damage it. Therefore, take precautions and
get a second person to assist 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. X
Unscrew the uppermost wheel bolt
completely.
X Screw alignment bolt :into the thread
instead of the wheel bolt.
X Unscrew the remaining wheel bolts fully.
X Remove the wheel.
Mounting a new wheel G
WARNING
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.
G
WARNING
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 (Y page 395).
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety
reasons, Mercedes-Benz recommends that
you only use wheel bolts which have been
approved for Mercedes-Benz vehicles and the
respective wheel.
! AMG vehicles: during removal and
repositioning of the wheel, the wheel rim
can strike the ceramic-brake disc and
damage it. Therefore, take precautions and
get a second person to assist 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. Positioning a wheel (example: vehicle with an
emergency spare wheel) Changing a wheel
399Wheels and tires Z
ProCarManuals.com