Flat tire
Preparing the vehicle
Your vehicle may be equipped with a
"Minispare" emergency spare wheel or
MOExtended tires (tires with run-flat
properties) ( Y page 477).
i Vehicle preparation is not necessary on
vehicles with MOExtended tires.
X Stop the vehicle as far away as possible
from
traffic on solid, non-slippery and level
ground.
X Switch on the hazard warning lamps.
X Engage the electric parking brake manually
(Y page 324).
X Bring the front wheels into the straight-
ahead position.
X Move the DIRECT SELECT lever to P.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronics have status 0,
which is the same as the SmartKey having
been removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 303).
X All occupants must get out of the vehicle.
Make
sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area while a wheel is being changed.
Anyone who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to
traffic conditions when doing so.
X Close the driver's door. Changing a wheel and mounting the
spare wheel
Preparing the vehicle G
WARNING
The wheel and tire size of the emergency
spare
wheel/spare wheel may differ to that of
the damaged wheel. When using an
emergency spare wheel/spare wheel the
handling characteristics of the vehicle may
change.
Adapt your style of driving accordingly.
Never operate the vehicle with more than one
emergency spare wheel/spare wheel that
differs in size.
Only use an emergency spare wheel/spare
wheel of a differing size briefly and do not
switch off ESP ®
.
When using an emergency spare wheel, you
must not exceed the maximum speed of
50 mph (80 km/h). G
WARNING
Have the emergency spare wheel/spare
wheel replaced with a new wheel as soon as
possible at a qualified specialist workshop
which
has the necessary specialist knowledge
and tools to carry out the work required.
Mercedes-Benz recommends that you use an
authorized Mercedes-Benz Center for this
purpose. In particular, work relevant to safety
or on safety-related systems must be carried
out at a qualified specialist workshop.
i Vehicles without a spare wheel/
emergency spare wheel are not equipped
with a tire-change tool kit at the factory. For
more information on which tools are
required to perform a wheel change on your
vehicle, e.g. wheel chock, lug wrench or
alignment bolt, consult an authorized
Mercedes-Benz Center. Flat tire
473
Breakdown assistance Z
X
Make sure that the base of the jack is
positioned
directly under the jacking point.
X Turn crank ? clockwise until jack = sits
completely on jacking point ; and the
base of the jack lies evenly on the ground.
X Turn crank ? until the tire is raised a
maximum of 1.2 inches (3 cm) off the
ground.
Removing a wheel 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.
! 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 Remove the wheel. Mounting a new wheel G
WARNING
Always replace wheel bolts that are damaged
or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact an
authorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect
wheel bolts or improperly tightened
wheel bolts can cause the wheel to come off.
This could cause an accident. Make sure to
use the correct wheel bolts. G
WARNING
Only use genuine Mercedes-Benz wheel bolts.
Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle
is raised. Otherwise, the vehicle could
fall off the jack. G
WARNING
Make sure to use the original length wheel
bolts when remounting the original wheel
after it has been repaired. Wheel bolts for:
:
All alloy wheels and the "Minispare"
emergency spare wheel for alloy wheels
; "Minispare" emergency spare wheel for
steel wheels
! Always use wheel bolts : to fit the
"Minispare" emergency spare wheel with 476
Flat tire
Breakdown assistance
light-alloy wheel. Using other wheel bolts
when fitting the "Minispare" emergency
spare wheel with light-alloy wheel could
damage the brake system.
Always use wheel bolts
; to fit the
"Minispare" emergency spare wheel with
steel wheel. Using other wheels when
fitting the "Minispare" emergency spare
wheel with steel wheel could damage the
brake system.
X Clean the wheel and wheel hub contact
surfaces.
! To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt. X
Slide the emergency spare wheel onto the
alignment bolt and push it on.
X Tighten the wheel bolts until they are
finger-tight.
X Unscrew the alignment bolt.
X Tighten the last wheel bolt until it is finger-
tight.
Lowering the vehicle X
Turn the crank of the jack counter-
clockwise until the vehicle is once again
standing firmly on the ground.
X Place the jack to one side. X
Tighten the wheel bolts evenly in a
crosswise pattern in the sequence
indicated ( :
to A). The tightening torque
must be 110 lb-ft (150 Nm). G
WARNING
Have the tightening torque checked
immediately after a wheel is changed. The
wheels could come loose if they are not
tightened to a torque of 110 lb/ft
(150 Nm).
X Turn the jack back to its initial position and
store it together with the rest of the tire-
change tool kit in the stowage well under
the trunk floor.
i When
you are driving with the emergency
spare wheel mounted, the tire pressure
monitoring system cannot function
reliably. Only restart the tire pressure
monitoring system when the defective
wheel has been replaced with a new wheel.
All mounted wheels must be equipped with
functioning sensors and the defective
wheel should no longer be in the vehicle. MOExtended tires (tires with run-flat
properties)
MOExtended tires (tires with run-flat
properties)
allow you to continue driving your
vehicle even if one or more tires are entirely
deflated.
MOExtended tires may only be used in
conjunction with the activated tire pressure Flat tire
477
Breakdown assistance Z
