X
Place the emergency spare wheel on the
wheel hub and push it on.
X
Tighten the wheel bolts until they are
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
96 lb-ft (130 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
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 trunk/cargo
compartment.
X
Transport the defective wheel in the trunk/
cargo compartment.
or
X
Depending on the size of the wheel, you
may also be able to secure the defective
wheel in the spare wheel well. In this case,
you will have to remove the stowage well
casing from the spare wheel well and stow
it securely in the trunk/cargo
compartment.
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)
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
loss warning system or with the activated tire
pressure monitoring system.
The maximum permissible distance which
can be driven in run-flat mode depends on the
load in the vehicle. You can drive 50 miles
(80 km) if the vehicle is partially laden and
18 miles (30 km) if it is fully laden.
The maximum permissible distance which
can be driven in run-flat mode is counted from
the moment the tire pressure loss warning
appears in the multifunction display.
You must not exceed a maximum speed of
50 mph (80 km/h).
Flat tire
297
Breakdown assistance
Z
Summary of Contents for 2012C-Class Sedan
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