Mercedes-Benz SL 2008 Owner's Manual page 276

Tighten the wheel bolts until they are fin-
X
ger-tight.
Unscrew the centring pin.
X
Tighten the last wheel bolt until it is finger-
X
tight.
Inflating the collapsible emergency
spare wheel* with the electric air pump
G Risk of accident
Pump up the collapsible emergency spare
wheel before lowering the vehicle. Other-
wise, you could damage the wheel rim.
The electric air pump is located in the stow-
age well under the boot floor.
* optional
Take the electric air pump out of the stow-
X
age well under the boot floor.
Flap
1
On/off switch
2
Connector
3
Air pump hose with pressure gauge and
4
pressure release screw
Union nut
5
Open flap 1.
X
Pull connector 3 and air hose
X
the housing.
Make sure that the pressure release screw
X
on the pressure gauge is closed.
Remove the cap from the valve on the tyre.
X
Screw union nut
X
valve.
Insert plug 3
X
socket* ( page 166) or into a 12V socket
Y
in your vehicle (
Make sure that the key is in position 2 in
X
the ignition lock.
Press on/off switch
X
pump to I.
The electric air pump is switched on. The
tyre is inflated.
When the tyre pressure is correct, press 0
X
on the electric air pump switch. Correct
tyre pressure:
collapsible spare wheel* with specifica-
R
tion 185/60-17 93P: 2.5 bar
collapsible spare wheel* with specifica-
R
tion 175/55-18 95P: 3.5 bar
collapsible spare wheel* with specifica-
R
4 out of
tion 175/55-18 91P: 3.0 bar
collapsible spare wheel* with specifica-
R
tion 175/50-19 97P: 3.5 bar
!
Do not operate the electric air pump for
longer than six minutes without a break.
Otherwise, it may overheat.
Practical advice
Flat tyre
5 on air hose 4 onto the
into the cigarette lighter
page 166).
Y
2 on the electric air
273
Z