make sure the bolts holding the wheel to the
car are tight enough. Otherwise, the wheels
could come off. Each bolt should be
tightened to a torque of 81 lb‑ft (110 Nm).
Wheel change
Preparing the vehicle
X Park the vehicle on a hard, flat surface
when possible.
X Turn on the hazard warning flasher.
X Turn the steerin gwheel so that the front
wheels are in a straight-ahead position.
X Engage the parking brake.
X Move the gear selector lever to park
position P.
X Switch off the drive system.
X Have any passenger exit the vehicle at a
safe distance from the roadway. Removing the wheel
G
WARNING
When jacking up the vehicle, only use a
suitable jack. Observe the manufacturer’s
safety instructions.
The jack must be designed for jacking up
this vehicle at the jack take-up brackets
built into both sides of the vehicle.
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle. To help avoid personal
injury, use the jack only to lift the vehicle
during awheel change.
Never get beneath the vehicle while it is
supported by the jack. Keep hands and feet
away from the area under the lifted vehicle.
Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle. Always firmly engage the parking brake and
block the wheels with wheel chocks or other
sizeable objects before raising the
vehicle with the jack. Do not release the
parking brake while the vehicle is raised.
Make sure the ground on which the vehicle
is standing and where you place the jack is
solid, level and not slippery. If necessary,
use a large underlay. On slippery surfaces,
such as tiled floors, you should use a non-
slip underlay, for example a rubber mat.
Do not use wooden blocks or similar objects
to support the jack. Otherwise the jack may
not be able to achieve its load-bearing
capacity if it is not at its full height.
The jack must always be vertical when in
use. Always try to use the jack on level
surface. If you do not position the jack
correctly, the vehicle can fall off the jack
and seriously or fatally injure you or
others.
Never switch on the drive system when the
vehicle is raised.
Also observe the notes on the jack.
X Make sure to have a suitable jack 10
, wheel
wrench 10
and wheel chock 10
.
Contact an authorized electric drive
smart center for information on which
jack and wheel wrench are required.
X Prepare the vehicle as described
(Y page 188).
X Make sure the surface is level.
Prevent the vehicle from rolling away by
blocking wheels with wheel chocks or other
sizeable objects:
X Place one wheel chock or other sizeable
object in front of and another wheel
chock or other sizeable object behind
the wheel that is diagonally opposite to
the wheel being changed.
10 Not included and not available as factory equipment. 188
Wheel change>> Practical hints.
X
On wheel to be changed ,loosen but do not
yet remove the wheel bolts
(approximately one full turn with wheel
wrench).
! Only position the jack on the
designated take-up brackets.
You must not position the jack under the
high-voltage battery. Otherwise, the
high-voltage battery could be damaged. Warning label
The take-up brackets are identified by the
embossed recesses in the area of the door
sills. X
Position jack 0003under take-up
bracket 0002so that it is always vertical
as seen from the side, even if the vehicle
is parked on an incline.
X Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the ground.
X Unscrew and remove the wheel bolts.
! Do not place wheel bolts in sand or dirt.
This could result in damage to the wheel
bolts and wheel hub threads. X
Remove the wheel. Mounting the 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 electric drive smart 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.
Be sure to use the correct wheel bolts. G
WARNING
Only use genuine smart 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.
X Clean contact surfaces of wheel and wheel
hub.
! To avoid paint damage, place wheel flat
against hub and hold it there while
installing first wheel bolt. X
Guide the wheel onto the wheel hub and
push it on.
X Insert two wheel bolts and tighten them
slightly. Wheel change
189>> Practical hints. Z
