M N
0:: <.J 'SI: ,...., \!) ..,.,
,...., ..,., ,....,
@ Tips
After a tire repair, have the sealant bottle replaced at a dealership. This restores full
functionality to the Tire Mobility System.
Changing a wheel
Before changing a wheel
Observe the following precautions for your
own and your passenger's safety when chang
ing a wheel .
.. After you experience a tire failure, pull the
car well away from moving traffic and try to
reach
level ground before you stop c:> &, .
.. All passengers should leave the car and
move to a safe location (for instance, behind
the guardrail)
c:> &, .
.. Engage th e parking brake to prevent your
vehicle from rolling unintentionally
c:> &, .
.. Move selector lever to position Pc:> &, .
.. Take the jack out of the luggage compart
ment
c> page 259.
A WARNING
You or your passengers could be injured
while changing a wheel if you do not fol
low these safety precautions:
- If you have a flat tire, move a safe dis
tance off the road. Turn off the engine,
turn the emergency flashers on and use
other warning devices to alert other mo
torists.
- Make sure that passengers wait in a safe
place away from the vehicle and well
away from the road and traffic.
- To help prevent the vehicle from moving
suddenly and possibly slipping off the
jack, always fully set the parking brake
and block the wheel diagonally opposite
the wheel being changed . When one
front wheel is lifted off the ground, plac ing the Automatic Transmission in P
(Park) will
not prevent the vehicle from
moving.
What do I do now? 263
- Before you change a wheel, be sure the
ground is level and firm. If necessary,
use a sturdy board under the jack.
- Always store the vehicle tool kit, the jack
and the replaced tire in the luggage com
partment
c:>page 126.
([) Note
If you are changing the wheel on a steep
incline, use a rock or similar object to
block the opposite wheel to prevent the
vehicle from moving .
(l) Tips
- Before changing the wheel, you must ac
tivate the jacking mode, so that the au
tomatic controls for the Adaptive Air
Suspension* do not make it more diffi
cult to lift the vehicle with the jack
c:>page265 .
-Obey all laws .
Changing a wheel
When you change a wheel , follow these
quence described below step -by -step and in
exactly that order.
l. Activate the vehicle jack mode"
c:>page 265.
2. Remove the wheel bolt caps* . For more
details see also
c:> page 264, Wheels with
wheel bolt caps.
3. Loosen the wheel bolts c:>page 264.
4. Locate the proper mounting point for the
jack and align the jack below that point
c:> page 2 65.
5. Raise the car with the jack r::> page 265.
6. Remove the wheel with the flat tire and
t hen in stall the other wheelr::>
page 267 .
7. Tighten all wheel bolts lightly .
8.
Lower the vehicle with the jack .
9 . Use the wheel bolt wrench and
firmly
tighten all wheel bolts c:> page 264.
10. Replace the wheel bolt caps*.
•
•
26 4 What do I do n ow ?
11. Deactivate the vehicle jack mode* in the
MMI:
! CARI funct ion button> (Ca r)* sys
tems
control button > S er vicing & checks
> A ir su sp. : ja ck mode > Off.
The vehicle jack mode* switches off automati
cally at speeds above 6 mph (10 km/h).
A WARNING
Always read and follow all WARNINGS and information
Q A in Raising the vehicle on
page 266
and Q page 268 .
After changing a wheel
A wheel change is not complete without the
doing the following.
• Always store the vehicle tool kit, the jack *
and the replaced tire in the luggage com
partment
Q page 126.
• As soon as possible, have the tighten ing
torques
on all wheel bolts checked with a
torque wrench . The correct tightening tor
que is 90 ft lb ( 120 Nm) .
• Have the flat tire
re pl ac ed as soo n as poss i
ble .
@ Tips
- If you notice that the wheel bolts are
corroded and difficult to t urn w hile
changing a t ire, they should be replaced
before yo u check the tighten ing torque .
- Drive at reduced speed unt il you have the
tightening torques checked.
- After changing a wheel, t he tire pressure
i n a ll four tires must be checked/cor re ct
ed and the tire pressure mon itoring indi
cator must be stored in the MM I
¢page 257.
' Wheels with wheel bolt caps
Applies to vehicles: with wheel bolts with caps
The caps must be removed first from the
wheel bolts before the bolts can be un
screwed .
Fig. 208 Cha nging a whee l: removing t he wheel bo lt
c aps
Removing
.. Push the
pla st ic clip (prov ided with the veh i
cle tool kit) over the wheel bo lt cap until the
inner retainers on the clip align w ith the
edge of the cover.
• Remove the cap with the
pl as tic clip (vehicle
too l kit)
~ fig. 208.
Refitting
.. Place the caps over the whee l bolts and
push them back on.
The caps are to protect and keep the wheel bolts clean.
Loosening and tightening the wheel
bolts
The wheel bolts must be loosened before rais
ing the vehicle.
F ig . 209 Chang ing a whee l: loosening t he w hee l bolts .,.
"' N
a:: I.J "". rl I.O
"' rl
"' rl
Loosening
• Slide the wh eel wr ench onto the wheel bolt
as far as it will go.
• Take tight hold of the
end of the wrench
handle and turn the whee l bolts
counter
cl oc kwis e
about one single turn in the direc
tion of arrow c:>
fig. 209.
Tightening
• Slide the wheel wrench onto the whee l bolt
as far as it will go.
• Take tight hold of the
end of the wrench
handle and turn each wheel bolt
clockwi se
until it is seated.
A WARNING
- Do not use force or hurry when chang ing
a wheel -you can cause the vehicle to slip
off the jack and cause serious persona l
injuries.
- Do not loosen the wheel bolts more than
one turn
before you raise the veh icle w ith
the jack. -You risk an injury .
@ Tips
-Never use the hexagonal socket in the
handle of the screwdrive r to loosen or
tighten the wheel bo lts.
- If a whee l bolt is very tight, yo u may find
i t easier to loosen by ca refully push ing
down on the end of the wheel bolt
wre nch w ith
one foot only. As yo u do so,
ho ld on to the car to keep your ba lance
and take care not to slip .
What do I d o now ? 265
Raising the vehicle
The vehicle must be lifted with the jack first
before the wheel can be removed .
Fig . 210 Sill panels: markings
Fig. 211 Sill: pos ition ing the veh icle jack
• Ac tiva te the vehicle jack mode* in the MM I:
!CAR I fu nction button > (Car) * system s con
trol button>
Se rvicing & ch eck s> Air susp. :
jack mode > On .
• Engage the parking brake to prevent your
veh icle from rolling unintentionally .
• Move the
selector le ver to position P .
• Find the co ver on the sill that is nearest the
wheel that will be changed c:>
fig. 210. Un
de r the cover, t here is a
lifting po int on the
sill for the veh icle jack.
• Remove the cover from the sill before l ifting
the vehicle with a ve hicle jack c:>
page 266.
•Turn the vehicle jack located under the lift
ing point on the sill to raise the jack unti l its
arm @ c:>
fig. 211 is located under the des
ignated plastic mount c:> &_ c:>(D.
• Align the jack so that its arm @c:>
fig. 211
engages in the designated lifting point in
the door s ill and the movable base @ lies
flat on the ground. The base@ must be
ver
tical
under the lifting point @.
• W ind the jack up fu rther until the flat t ire
comes off the ground c:> &_ .
~
266 What do I do now?
Position the vehicle jack only under the desig
nated lifting points on the sill
r::!;> fig. 210.
There is exactly one location for each wheel.
The jack must not be positioned at any other location¢ ,&.¢(D .
An
un stable surfa ce under the jack can cause
the vehicle to slip off the jack. Always prov ide
a firm base for the jack on the ground. If nec
essary place a sturdy board or similar support
under the jack . On
hard, slippery surfaces
(such as tiles) use a rubber mat or sim ilar to
prevent the jack from slipping¢.&..
A WARNING
-You or your passengers could be injured
wh ile chang ing a wheel if you do not fol
low these safety precautions:
- Position the vehicle jack only at the
designated lifting points and align the
jack . Otherwise, the vehicle jack could
slip and cause an injury if it does not
have sufficient hold on the vehicle.
-A soft or unstable surface under the
jack may cause the veh icle to slip off
the jack. Always provide a firm base for
the jack on the ground.
If necessary,
use a sturdy board under the jack.
- On hard, slippery surface (such as tiles)
use a rubber mat or sim ilar to prevent
the jack from s lipping.
- T o help prevent injury to yourself and
yo ur passenge rs:
- Do not raise the vehicle unti l you are
sure the jack is securely engaged.
- Passengers must not remain in the ve
hicle when it is jacked up.
- Make sure that passengers wait in a
safe p lace away from the vehicle and
well away from the road and traffic.
- Make sure jack position is correct, ad
just as necessary and then continue to ra ise the jack.
- Changes in temperature or load can af
fect the height of the vehicle.
(D Note
Do not lift the vehicle by the sill. Position
the veh icle jack only at the designated lift
ing points on the sill. Otherwise, your vehi
cle will be damaged.
(D Tips
The vehicle jack mode * switches off auto
matically at speeds above 6 mph (10 km/
h).
Removing and installing the sill cover
Applies to vehicles: with sill
Fig. 212 Sill: remov ing the cover
.. Pull the cover down to remove it¢ fig. 212.
.. To install the cover again, insert it into the
retainers and then swing it upward until it
clicks into place. The cover must be flush
with the sill.
@ Tips
Some models may also have a cover for the
rear vehicle lift point.