Mercedes-Benz SLK-CLASS Operator's Manual page 180

Practical hints
Flat tire
Take the electric air pump out of the
trunk ( page 388).
Open flap 1 on air pump.
Pull out electrical plug 3 and air hose
with pressure gauge 4.
Close vent screw on air hose 4.
Remove the valve cap from the tire
valve.
Screw air hose 4 with union nut 5
onto the collapsible tire valve.
Make sure electric air pump switch 2
is set to 0.
Insert electrical plug 3 into the power
outlet in the passenger footwell
( page 271).
!
The cigarette lighter ( page 270) is
not designed for use with the electric
air pump. Use the power outlet in the
passenger footwell ( page 271) for
electric air pump operation.
418
Turn the SmartKey in the starter switch
to position 1.
Press I on electric air pump switch 2.
The electric air pump switches on and
inflates the collapsible tire.
Inflate the collapsible tire to approxi-
mately 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 6 minutes without interrup-
tion. Otherwise it may overheat.
You may operate the electric air pump
again after it has cooled off.
Press 0 on electric air pump switch 2.
Turn the SmartKey in the starter switch
to position 0.
The electric air pump should now be
switched off.
If the tire inflation pressure is above
51 psi (3.5 bar), release excess tire in-
flation pressure using the vent screw
on air hose 4.