2013 MERCEDES-BENZ R-CLASS FAMILY TOURER ignition

Restarting the tire pressure loss
warning system
Restar
tthe tire pressure loss warning system
if you have:
R changed the tire pressure
R changed the wheels or tires
R mounted new wheels or tires
X Before restarting, make sure that the tire
pressures are set properly on all four tires
for the respective operating conditions.
The recommended tire pressures can be
found on the Tire and Loading Information
placard on the B-pillar on the driver's side
or the tire pressure table on the fuel filler
flap.
The tire pressure loss warning system can
only give reliable warnings if you have set
the correct tire pressure. If an incorrectt ire
pressure is set, these incorrect values will
be monitored.
X Also observe the notes in the section on tire
pressures (Y page 316).
X Make sure that the SmartKey is in
position 2(Y page 149 )inthe ignition lock.
X Press and hold the VorU button on
the multifunction steering wheel until the
standard display appears in the
multifunction display (Y page 203).
X Press the *or& button until the
Run Flat Indicator Active Menu: R- Button message appears in the
multifunction display.
X Press the reset button on the instrument
cluster (Y page 31).
The Restart Run Flat Indicator? message appears in the multifunction
display.
If you wish to confirm the restart:
X Press the Wbutton.
The Run Flat Indicator Restarted message appears in the multifunction
display. After a teach-in period, the tire pressure
loss warning system will monitor the set
tire pressures of all four tires.
If you wish to cancel the restart:
X Press the Xbutton.
or
X Wait until the Restart Run Flat Indicator? message goes out.
The tire pressure values stored at the last
restart will continue to be monitored. Tire pressure monitor (USA only)
Important safety notes G
WARNING
Each tire, including the spare (if provided),
should be checked at least once a month
when cold and inflated to the pressure
recommended by the vehicle manufacturer
on the Tire and Loading Information placard
on the driver's door B-pillar or the tire
pressure label on the inside of the fuel filler
flap. If your vehicle has tires of a different size
than the size indicated on the Tire and Loading
Information placard or the tire pressure label,
you should determine the proper tire pressure
for those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires are significantly underinflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and check
your tires as soon as possible, and inflate
them to the proper pressure. Driving on a
significantly underinflated tire causes the tire
to overheat and can lead to tire failure.
Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehicle's
handling and stopping ability.
Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the
driver's responsibility to maintain correct tire 320
Tire pressureWheels and tires

computer. In this case, do not reduce the tire
pressures.
The operation of the tire pressure monitor can
be affected by interference from radio
transmitting equipment (e.g. radio
headphones, two-way radios) that may be
being operated in or nea
rthe vehicle.
Checking tire pressure electronically X
Make sure that the SmartKey is in
position 2(Y page 149) in the ignition lock.
X Press and hold the VorU button on
the multifunction steering wheel until the
standard display appears in the
multifunction display (Y page 203).
X Press and hold the &or* button
until the current tire pressure of each tire
is shown in the multifunction display.
If the vehicle has been parked for over
20 minutes, the Tire pressure displayed after driving for a few
minutes message appears.
After a teach-in period, the tire pressure
monitor automatically recognizes new wheels
or new sensors. As long as a clear allocation
of the tire pressure values to the individual
wheels is not possible, the Tire PressureMonitor Active message is shown instead
of the tire pressure display. The tire pressures
are already being monitored.
Tire pressure monitor warning
messages If the tire pressure monitor detects a
significant pressure loss on one or more tires,
a warning message is shown in the
multifunction display.
Awarning tone also
sounds and the tire pressure warning lamp
lights up in the instrumen tcluster.
Each tire that is affected by a significant loss
of pressure is highlighted in the pressure
display.
X If the Tire Pressure(s) Please Correct message appears in the
multifunction display, chec kthe tire pressure on all four wheels and correct it if
necessary.
i If the wheel positions on the vehicle are
interchanged, the tire pressures may be
displayed for the wrong positions for a
short time. This is rectified after a few
minutes of driving, and the tire pressures
are displayed for the correct positions.
Restarting the tire pressure monitor When you restart the tire pressure monitor,
all existing warning messages are deleted and
the warning lamps go out. The monitor uses
the currently set tire pressures as the
reference values for monitoring. The tire
pressure monitor must be restarted when you
set the tire pressure to a new value (as a result
of changed drive or load characteristics, for
example). The tire pressure monitor then
monitors the new tire pressure values.
X
Set the tire pressure to the value
recommended for the corresponding
driving situation on the Tire and Loading
Information placard on the driver's side
B-pillar (Y page 316).
Additional tire pressure values for different
loads can also be found on the tire pressure
table on the inside of the fuel filler flap
(Y page 316).
X Make sure that the tire pressure is correct
on all four wheels.
X Make sure that the SmartKey is in position
2in the ignition lock.
X Press and hold the VorU button on
the multifunction steering wheel until the
standard display appears in the
multifunction display (Y page 203).
X Press and hold the &or* button
until the tire pressure of each wheel or the
Tire pressure displayed after 322
Tire pressureWheels and tires

Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protect the
tires from oil, grease, gasoline and diesel. Cleaning the wheels
G
WARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components.
Components damaged in this way may fail
unexpectedly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced
immediately. Mounting
awheel
Preparing the vehicle X
Vehicle with emergency spare wheel:
whe nmounting the emergency spare
wheel in the event of a flat tire, follow the
additional notes on vehicle preparation
under "Flat tire" (Y page 299).
X Park the vehicle on firm, non-slippery and
level ground.
X Apply the parking brake.
X Bring the front wheels into the straight-
ahead position.
X Shift the transmission to position P.
X Vehicles with the AIRMATIC package:
make sure that highway level is selected
(Y page 183).
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 149).
X If included in the vehicle equipment, take
the tire-change tool kit out of the vehicle.
X Secure the vehicle to prevent it from rolling
away.
i Apart from certain country-specific
variations, vehicles are not equipped with
a tire-change tool kit. For information on
which tools are required to perform a wheel
change on your vehicle, consult an
authorized Mercedes-Benz Center.
Necessary wheel-changing tools can
include, for example:
R Jack
R Wheel chock
R Lug wrench
Securing the vehicle to prevent it from
rolling away If your vehicle is equipped with a wheel chock,
it can be found in the tire-change tool kit
(Y
page 298).
The folding wheel chock is an additional
securing measure to prevent the vehicle from
rolling away, for example when changing a
wheel.
X Fold both plates upwards :.
X Fold out lower plate ;.
X Guide the lugs on the lower plate fully into
the openings in base plate =. Changing
awheel
335Wheels and tires Z

X
Insert plug 3into the socket in the
footwell of the second row of seats
(Y page 270).
Only operate the tire inflatio ncompressor
using the socket in the footwell of the
second row of seats (Y page 270), even if
the ignition is turned off.
An emergency cut-out ensures that the on-
board voltage does not drop too low. If the
on-board voltage is too low, the power to
the sockets is automatically cut. This
ensures that there is sufficient power to
start the engine.
X Turn the SmartKey to position 1in the
ignition lock (Y page 149).
X Press on/offs witch;on the tire inflation
compressor to I.
The tire inflatio ncompressor is switched
on. The tire is inflated. The tire pressure is
shown on pressure gauge ?.
X Inflate the tire to the specified tire
pressure.
The specified tire pressure is printed on the
yellow label of the emergency spare wheel.
X When the specified tire pressure has been
reached, press on/offs witch2on the
electric air pump to 0.
The tire inflatio ncompressor is switched
off.
X Turn the SmartKey to position 0in the
ignition lock.
X Version 1: if the tire pressure is higher than
specified, open the pressure release screw
on pressure gauge 4until the correct tire
pressure is set.
X Version 2: if the tire pressure is higher than
specified, press pressure release button
6 until the correct tire pressure is set.
X Unscrew union nut Aon the air hose from
the valve.
X Screw the valve cap ontot he collapsible
spare wheel valve again.
X Version 1:s tow plug=and the ai rhose
behind flap :. X
Version 2:s tow plug=and the ai rhose
in the lower section of the compressor
housing.
X Stow the tire inflation compressor in the
vehicle. Stowing the emergency sparew
heel
! Only place the collapsible spare wheel in
the vehicle whe nitis dry. Otherwise,
moisture may get into the vehicle.
Take the following steps to stow a used
collapsible spare wheel. It will not otherwise
fit into the spare wheel well.M ercedes-Benz
recommends that you have this work
performed at a qualified specialist workshop,
e.g. at an authorized Mercedes-BenzC enter.
X Unscrew the valve cap from the valve.
X If possible, unscrew the valve insert from
the valve and release the air.
i Fully deflating the tires can take a few
minutes.
X Screw the valve insert back into the valve.
X Screw the valve cap back on. 344
Emergency spare wheelWheels and tires