Mercedes-Benz 2007 E -Class Wagon Operator's Manual page 461

Practical hints
Flat tire
Warning!
Observe instructions on air pump label.
!
Do not lower the vehicle before inflating the
collapsible tire. Otherwise the rim may be dam-
aged.
Take the electric air pump out of the
cargo compartment ( page 431).
1 Flap
2 On/off switch
3 Electrical plug
4 Air hose with pressure gauge and vent
screw
5 Union nut
460
Open flap 1 on electric air pump.
G
Pull out electrical plug 3 and air hose
with pressure gauge 4.
Remove the valve cap from the
collapsible tire valve.
Screw union nut 5 onto the collaps-
ible tire valve.
Insert electrical plug 3 into vehicle
cigarette lighter socket ( page 286).
Turn the SmartKey in the starter switch
to position 1.
Press I on electric air pump switch 2.
The electric air pump should now
switch on and inflate the collapsible
tire.
Inflate the tire to approximately 51 psi
(3.5 bar).
This takes about 5 minutes for the col-
lapsible tire. Air hose 4 and union
nut 5 can become hot during infla-
tion. Exercise proper caution to avoid
burning yourself when using the equip-
ment.
!
Do not operate the electric air pump longer
than 8 minutes without interruption. Otherwise it
may overheat.
You may operate the electric air pump again af-
ter it has cooled off.
Press 0 on electric air pump switch 2.
Turn the SmartKey in the starter switch
to position 0.
If the tire pressure is above 51 psi
(3.5 bar), release excess tire pressure
using the vent screw.