run flat MERCEDES-BENZ R-CLASS MPV 2008 User Guide

Flat tyre
3151
TIREFIT sealant filler bottle
2 Flap
3 Recess
4 On/off switch
5 Electric connector with cable
6 Air pump hose
7 Flange
X Open flap 2on the electric air pump.
X Pull connector 5and air pump hose 6
from the housing.
X Screw air pump hose 6onto flange 7of
TIREFIT filler bottle 1.
X Place TIREFIT sealant filler bottle 1head
downwards into recess 3of the electric
air pump. 8
Filler hose
9 Valve
X Remove the cap from valve 9on the faulty
tyre. a
Pressure release screw
b Pressure gauge X
Make sure pressure release screw aon
pressure gauge bis fully closed.
X Screw filler hose 8onto valve 9.
X Insert connector 5into the socket in the
luggage compartment (Y page 207) or the
second row of seats (Y page 207).
! The socket /cigarette lighter *in the front
centre console is not designed for operat-
ing the electric air pump.
X Press on/off switch 4on the electric air
pump to I.
The electric air pump is switched on. The
tyre is inflated.
i First, TIREFIT is pumped into the tyre. The
pressure can briefly rise to around 5 bar.
Do not switch off the electric pump dur-
ing this phase.
X Let the electric pump run for five minutes.
The tyre should then have a pressure of at
least 1.8 bar.
! Do not operate the electric air pump for
longer than six minutes without a break.
Otherwise, it may overheat.
The air pump can be operated again once
it has cooled down. Practical advice
* optional
251_AKB; 5; 7, en-GB
wobuchh , Version: 2.10.6 2008-05-11T14:51:51+02:00 - Seite 315 ZDateiname: 6515_1825_02_buchblock.pdf; preflight

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,
Version: 2.10.6 2008-05-11T14:51:51+02:00 - Seite 322Dateiname: 6515_1825_02_buchblock.pdf; preflight

Battery
323
You must not exceed a maximum speed of
80 km/h. G
Risk of accident
The handling characteristics of your vehicle
deteriorate in run-flat mode, for example:
R when cornering
R when braking
R when accelerating rapidly
Adapt your driving style accordingly and
avoid sudden changes in direction and sud-
den acceleration, as well as driving over
obstacles (i.e. kerbs, potholes), and driving
off-road. This is particularly the case when
the vehicle is heavily laden.
The maximum permissible distance that
can be driven in run-flat mode depends to
a large extent on the loads placed on the
vehicle. It can be shorter due to high
speeds, a heavy load, sudden acceleration
and/or manoeuvring, the road surface con-
dition, outside temperature, etc., or further
if you drive carefully and conservatively.
Do not continue to drive in run-flat mode if:
R you hear banging noises
R the vehicle starts to shake
R you see smoke and smell rubber R
ESP ®
is intervening constantly
R there are tears in the sidewalls of the tyre
After driving in run-flat mode, you must
have the rims checked for damage at a
qualified specialist workshop which has the
necessary specialist knowledge and tools
to carry out the work required. The faulty
tyre must be replaced in every case.
Mercedes-Benz recommends that you use
a Mercedes-Benz Service Centre for this
purpose. In particular, work relevant to
safety or on safety-related systems must be
carried out at a qualified specialist work-
shop.
i On a vehicle with MOExtended tyres, only
use MOExtended spare tyres. These must
be of the size specified for the vehicle. Battery
Notes on the vehicle battery
In order for the battery to achieve the maxi-
mum possible service life, it must always be
sufficiently charged.
Have the battery charge checked more fre-
quently if you use the vehicle mainly for short
trips or if you leave it standing idle for a
lengthy period.
To prevent damage from corrosion, only
replace the battery with one that has a central
ventilation cover.
Consult a Mercedes-Benz Service Centre if
you wish to leave your vehicle parked up for
a long period of time. G
Risk of injury
Comply with safety precautions and take
protective measures when handling batter-
ies. Risk of explosion
Fire, naked flames and
smoking are prohibited
when handling the bat-
tery. Avoid creating
sparks. Practical advice
251_AKB; 5; 7, en-GB
wobuchh
,V ersion: 2.10.6
2008-05-11T14:51:51+02:00 - Seite 323 ZDateiname: 6515_1825_02_buchblock.pdf; preflight

Tyres and wheels
345Tyres and wheels
Points to remember
! For safety reasons, Mercedes-Benz rec-
ommends that you only use tyres which
have been approved specifically for your
vehicle by Mercedes-Benz. These tyres are
specially adapted for use with the control
systems, such as ABS or ESP ®
, and are
marked as follows:
R MO = Mercedes-Benz Original
R MOE = Mercedes-Benz Original Exten-
ded* (with run-flat characteristics)
If you use other tyres, Mercedes-Benz can-
not accept any responsibility for damage
which may occur. Information about tyres
can be obtained from any Mercedes-Benz
Service Centre.
i Vehicles with MOExtended run-flat sys-
tem are not equipped with the TIREFIT
kit* 42
.
It is therefore recommended that you addi-
tionally equip your vehicle with the TIREFIT
kit* when fitting tyres that do not feature
run-flat properties, e.g. winter tyres. i
A TIREFIT kit* is available from any quali-
fied specialist workshop, e.g. a Mercedes-
Benz Service Centre.
! If you fit tyres other than those tested and
recommended by Mercedes-Benz, charac-
teristics such as handling, noise levels and
fuel consumption, etc. could be adversely
affected. In addition, when driving with a
load, dimensional variations and different
tyre deformation characteristics could
cause the tyres to come into contact with
the bodywork and axle components. This
could result in damage to the tyres or the
vehicle.
i Further information about tyres and
wheels can be obtained from any
Mercedes-Benz Service Centre.
You will find a table of tyre pressures on the
inside of your vehicle's fuel filler flap. You
will find further information about tyre pres-
sures in the "Operation" section
(Y page 226).
42 Only for certain countries. Technical data
* optional
251_AKB; 5; 7, en-GB
wobuchh
,V ersion: 2.10.6
2008-05-11T14:51:51+02:00 - Seite 345 ZDateiname: 6515_1825_02_buchblock.pdf; preflight

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,
Version: 2.10.6 2008-05-11T14:51:51+02:00 - Seite 347 ZDateiname: 6515_1825_02_buchblock.pdf; preflight

Tyres and wheels
349All models
Rear axle
Summer tyres
49 265/4
0 ZR21 105Y XL Light-alloy wheels 9J
x 21 ET 48 Spare wheel*
Depending on the country, the engine and the wheels fitted, your vehicle may be equipped with TIREFIT or a collapsible emergency spare
wheel*.
! A tyre pressure of 3.0 bar/44 psi must be set for the collapsible emergency spare wheel*.
i Vehicles with MOExtended tyres (tyres with run-flat characteristics) are not equipped with a TIREFIT kit at the factory. All models except R 500 4MATIC R 500 4MATIC
18" Emergency
spare
wheel*
50 Tyres 195/75 - 18 106P —
Tyre pressure 3.0 bar —
Wheels 6.5B x 18 ET 40 —
19" Emergency
spare
wheel*
50 Tyres — 185/65 - 19 104P
Tyre pressure — 3.0 bar
Tyres — 5.5B x 19 ET 13
49
Snow chains not permitted.
50 Snow chains not permitted. Technical data
* optional
251_AKB; 5; 7, en-GB
wobuchh,
Version: 2.10.6 2008-05-11T14:51:51+02:00 - Seite 349 ZDateiname: 6515_1825_02_buchblock.pdf; preflight