Flat tyre
322The air pump can be operated again once
it has cooled down.
If the tyre pressure is higher than 3.0 bar:
X Version 1: open pressure release
screw 4on the pressure gauge until the
tyre pressure is correct.
X Version 2: press pressure release button
6 until the tyre pressure is correct.
X Switch off the electric air pump with on/off
switch 2, remove from the tyre valve and
stow it away.
Lowering the vehicle X
Place the ratchet ring spanner onto the
hexagon nut of the jack so that the lettering
AB is visible.
X Lower the vehicle by turning the ratchet
ring spanner until the vehicle is once again
standing firmly on the ground.
X Place the jack to one side. 1
–5 Wheel bolts
X Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indica-
ted (1 to5). The tightening torque is
150 Nm . G
Risk of accident
Have the tightening torque checked imme-
diately after a wheel is changed. The wheels
could work loose if they are not tightened
to a torque of 150 Nm.
X Turn the jack back to its initial position and
stow it and the rest of the vehicle tool kit in
the luggage compartment. X
Transport the faulty wheel in the boot.
or
X Depending on the size of the wheel, you
may also be able to secure the faulty wheel
in the emergency spare wheel well. In this
case, you will have to remove the stowage
tray from the emergency spare wheel well
and stow it securely in the luggage com-
partment.
i Do not activate the tyre pressure moni-
tor* until the deflated tyre has been
removed from the vehicle. MOExtended run-flat system*
The MOExtended run-flat system must only
be used in conjunction with the tyre pressure
loss warning system*.
! The maximum permissible distance which
can be driven in run-flat mode depends on
the load in the vehicle. It is 50 km if the
vehicle is partially laden and 30 km if fully
laden.
The maximum range that can be driven in
emergency operation is measured from the
point at which the pressure loss warning
message appears in the multi-function dis-
play. Practical advice
* optional
251_AKB; 5; 7, en-GB
wobuchh,
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Tyres and wheels
347R 280 CDI / R 280 CDI 4MATIC R 280 / R 280 4MATIC /
R 320 CDI 4MATIC / R 350 /
R 350 4MATIC R 500 4MATIC
19" Both
axles Summer tyres 255/5
0 R19 103W 255/50 R19 103W 255/50 R19 103W
Su
mmer tyres 45 255/5
0 R19 103W MO Extended 255/5
0 R19 103W MO Ext. 255/5
0 R19 103W MO Ext. Winter tyres
46 255/5
0 R19 103H M+ S. 255/50 R19 103H M+S
. 255/50 R19 103H M+S
. Winter tyres
45, 46 255/50 R19 107H XL M+S
.MOExt. 255/50 R19 107H XL M+S
.MOExt. 255/50 R19 107H XL M+S
.MOExt.
Light-alloy wheels 8J x 19 H2 ET 67
8.5J x 19 H2 ET 64 8J x 19 H2 ET 67
8.5J x 19 H2 ET 64 8J x 19 H2 ET 67
8.5J x 19 H2 ET 64
AMG equipment*
All models
20" Both axles
Summer tyres
47 265/45 ZR20 104Y
Light-alloy wheels 8.5J x 20 H2 ET 60
45
Tyres with run-flat characteristics and only in combination with the tyre pressure loss warning or tyre pressure monitor*.
46 Winter tyres for retrofitting. Only certain tyre brands are approved. Ask your Mercedes-Benz Service Centre for information.
47 Snow chains not permitted. Technical data
* optional
251_AKB; 5; 7, en-GB
wobuchh,
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