2012 MERCEDES-BENZ SLK-CLASS ROADSTER wheel alignment

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops ( Y page 23).
Where will I find...?
First-aid kit
XOpen the trunk lid.XLift the trunk floor up.XRemove first-aid kit :.
i
Check the expiration date on the first-aid
kit at least once a year. Replace the
contents if necessary, and replace missing
items.
Vehicle tool kit
The vehicle tool kit can be found in the
stowage well under the trunk floor.
XVehicles with a TIREFIT kit: lift the trunk
floor up.XLift the trunk floor up.XRemove the collapsible spare wheel
( Y page 274).XAMG vehicles: loosen the central screw of
the bracket counter-clockwise and remove
it together with the bracket.:Folding wheel chock;Fuse allocation chart=Jack?Sheet for faulty wheelAAlignment boltBLug wrenchCTowing eyeDValve extractorETire inflation compressor
Collapsible spare wheel
Removing the collapsible spare wheel
The collapsible spare wheel can be found in
the stowage well under the trunk floor.
AMG vehicles: the collapsible spare wheel is
packed in a bag and secured to a bracket in
the trunk.
274Where will I find...?Breakdown assistance

XApply the electric parking brake manually
( Y page 150).XBring the front wheels into the straight-
ahead position.XMove the selector lever to position P.XSwitch off the engine.XVehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock.XVehicles 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.XVehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
( Y page 131).XAll occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.XMake 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.XGet out of the vehicle. Pay attention to
traffic conditions when doing so.XClose the driver's door.
Changing a wheel and mounting the
spare wheel
Preparing the vehicle
When using a different size spare wheel or
emergency spare wheel, do not exceed the
maximum road speed of 50 mph (80 km/h)
GWARNING
The wheel or tire size as well as the tire type
of the spare wheel or emergency spare wheel
and the wheel to be replaced may differ.
Mounting an emergency spare wheel may
severely impair the driving characteristics.
There is a risk of an accident.
To avoid hazardous situations:
R adapt your driving style accordingly and
drive carefully.
R never install more than one spare wheel or
emergency spare wheel that differs in size.
R only use a spare wheel or emergency spare
wheel of a different size briefly.
R do not switch ESP ®
off.
R have a spare wheel or emergency spare
wheel of a different size replaced at the
nearest qualified specialist workshop.
Observe that the wheel and tire dimensions
as well as the tire type must be correct.
i Vehicles without a spare wheel or
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.XPrepare the vehicle as described
( Y page 275).XRemove the following items (depending on
the vehicle's equipment) from the stowage
well under the trunk floor:
R emergency spare wheel
R lug wrench
R folding wheel chock
R jack
R alignment bolt
R tire inflation compressorXSecure the vehicle to prevent it from rolling
away.
Securing the vehicle to prevent it from
rolling away
If your vehicle is equipped with a wheel chock,
it can be found in the vehicle tool kit
( Y page 274).
The folding wheel chock is an additional
securing measure to prevent the vehicle from
276Flat tireBreakdown assistance

XMake sure that the base of the jack is
positioned directly under the jacking point.XTurn crank A clockwise until jack ? sits
completely on jacking point = and the
base of the jack lies evenly on the ground.XTurn handle A until the tire is 1.2 in
(3 cm) from the ground at most.
Removing a wheel
XUnscrew the uppermost wheel bolt
completely.XScrew alignment bolt : into the thread
instead of the wheel bolt.XUnscrew 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.
XRemove the wheel.
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 notices in "Changing a wheel"
( Y page 315).
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.
Be sure to use the original-length wheel bolts
when refitting the original wheel after it has
been repaired.
XClean 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.
XSlide the emergency spare wheel onto the
alignment 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.XInflate the collapsible spare wheel
( Y page 280).Flat tire279Breakdown assistanceZ