Mercedes-Benz SL 2008 Owner's Manual page 190

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If you are carrying a deflated tyre in the
vehicle, you may only reactivate the tyre
pressure monitor if:
the deflated tyre is no longer in the vehi-
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cle
you have adjusted the tyre pressure cor-
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rectly
Calling up the tyre pressure using the
on-board computer
Make sure that the key is in position 2 in
X
the ignition lock.
Press the j or k button to select the
X
tyre pressure function.
The current tyre pressure for each wheel will
be displayed.
If the vehicle has been parked for longer than
20 minutes or you have not driven faster than
25 km/h since the vehicle was parked, the
following message appears:
Tyre pressure displayed only after
driving for a few minutes
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The tyre pressure values indicated by the
on-board computer may differ from those
measured at a filling station with a pressure
gauge. The tyres pressures shown by the
on-board computer refer to those meas-
ured at sea level. The tyre pressure values
indicated by the on-board computer may
differ when the vehicle is at high altitude.
In this case, do not reduce the tyre pres-
sures.
Restarting the tyre pressure monitor
In most cases, the tyre pressure monitor will
automatically detect the new reference val-
ues, e.g. if you have:
changed the tyre pressure
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changed the wheels or tyres
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fitted new wheels or tyres
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If you wish to define the new reference values
manually:
Tyres and wheels
Use the table on the inside of the fuel filler
X
flap to ensure that the tyre pressure is set
correctly in all four tyres for the current
operating conditions.
Also observe the notes in the section on
tyre pressures ( page 184).
Y
Make sure that the key is in position 2 in
X
the ignition lock.
The standard display appears in the multi-
function display ( page 110).
Y
Press the j or k button to select the
X
Tyre pressure function or wait until the
following message appears:
Tyre pressure displayed only after
driving for a few minutes
Press the reset button on the left of the
X
instrument cluster ( page 193).
Y
The following message appears in the
multi-function display: Check current
tyre pressure?
Press the æ button.
X
The following message appears in the
multi-function display:
Tyre pressure monitor restarted
The tyre pressure monitor has stored the
pressure of the tyres as a new reference
value.
Operation
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