2012 MERCEDES-BENZ SLK250 trunk lock

X
Apply the electri cparking brake manually
(Y page 150).
X Bring the fron twheels into the straight-
ahead position.
X Move the selector lever to position 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 131).
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
awheel 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)
G
WARNING
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 you rdriving 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 withou taspare 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.
X Prepare the vehicle as described
(Y page 275).
X Remove 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 compressor
X Secure 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 276
Flat tireBreakdown assistance

Lowering the vehicle
G
WARNING
Tire pressure that is too high or too low can
lead to a blowout of the mounted emergency
spare wheel/spare wheel, particularly when
driving with a heavy load and increasing
speed .There is a risk of accident.
Check the tire pressure of the emergency
spare wheel or spare wheel and adjust it.
When doing so, observe the specified tire
pressure.
! Inflate the collapsible spare wheel using
the tire inflation compressor before
lowering the vehicle. The wheel rim could
otherwise be damaged.
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. G
WARNING
The wheels could work loose if the wheel nuts
and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed.
X Tighten the wheel bolts evenly in a
crosswise pattern in the sequence
indicated ( 0002to0020). The tightening torque
must be 96 lb-ft (130 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.
X Vehicles with AMG equipment: insert the
cover into the outer sill.
X Place the damaged wheel in the protective
covering (if available) from the tire-change
tool kit, and stow it in the trunk.
The roof must be closed when doing so.
i USA only: 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 wheels mounted must be equipped with
functioning sensors. The defective wheel
should no longer be in the vehicle. MOExtended tires (tires with run-flat
properties)
With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is a total loss of
pressure in one or more tires.
MOExtended tires may only be used in
conjunction with the activated tire pressure
loss warning system or with the activated tire
pressure monitoring system.
The driving distance in partially laden
condition is approximately 50 miles (80 km),
and approximately 18 miles (30 km) when
fully loaded.
In addition to the vehicle load, the driving
distance possible depends upon:
R speed
R road condition
R outside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving
conditions/maneuvers, or it can be increased
through a moderate style of driving. Flat tire
281Breakdown assistance Z

components on the circuit and thei
rfunctions
stop operating.
Blown fuses must be replace dwith fuses of
the same rating, which you can recognize by
the color and value. The fuse ratings are listed
in the fuse allocation chart.
If a newly inserted fuse also blows, have the
cause traced and rectified at a qualified
specialist workshop, e.g. an authorized
Mercedes-Ben zCenter.
! Only use fuses that have been approved
for Mercedes-Benzv ehicles and which
have the correct fuse rating for the system
concerned. Otherwise, components or
systems could be damaged. Before changing a fuse
X Park the vehicle and apply the electric
parking brake.
X Switch off all electrical consumers.
X Remove the SmartKey from the ignition
lock.
The fuses are located in various fuse boxes:
R fuse box in the engine compartment on the
left-hand side of the vehicle, when viewed
in the direction of travel
R fuse box in the trun kbehind the partition
trim
The fuse allocation chart is located in the
vehicle tool kit (Y page 274) in the stowage
compartment under the trunk floor. Fuse box in the engine compartment
X Make sure that the windshield wipers are
turned off. G
WARNING
Make sure that the windshield wipers are
switched off and that the SmartKey is
removed from the ignition lock before you
open the cover of the fuse box. Otherwise, the
windshield wipers and the wiper rods above the cover could be set in motion
.This could
lead to you or others being injured by the
wiper rods.
X Open the hood (Y page 260). X
Remove any existing moisture from the
fuse box using a dry cloth.
X To open: open clamps 0002.
X Remove fuse box cover 0003forwards.
! Make sure that no moisture can enter the
fuse box when the cover is open.
X To close: check whether the rubber seal is
lying correctly in cover 0003.
X Insert cover 0003at the rear of the fuse box
into the retainer.
X Fold down cover 0003and close clamps 0002.
! The cover must be seated properly,
otherwise moisture or dirt could impair the
function of the fuses.
X Close the hood (Y page 261). Fuse box in the trunk
The fuse box is located in the trunk behind the
partition covering.
X Open the trunk (Y page 77).290
FusesBreakdown assistance