Mercedes-Benz 2003 M-Class - Manual (Page 259)

259
Practical hints
Flat tire
Inflating the spare wheel with
collapsible tire
̈ Take the electric air pump out of the
rear cargo compartment (
୴ page 238).
1 Union nut
2 Electrical plug
3 Air hose with pressure gauge
4 Vent screw
̈ Open flap on air pump.
̈ Pull out electrical plug 2 and air hose
with the pressure gauge 3.
̈ Close the vent screw 4.
̈ Remove the valve cap from the spare
wheel tire valve.
̈ Screw the union nut 1 with air hose 3
on to the tire valve.
̈ Insert electrical plug 2 into the electri-
cal outlet in the front passenger foot-
well or rear cargo compartment
(
୴ page 158).
̈ Start the engine.
̈ Switch on the air pump.
̈ Operate air pump until the pressure
gauge displays 61 psi (4.2 bar)
This takes about eight minutes for the
collapsible tire. The air hose 3 and the
union nut 1 can become hot during in-
flation. Please exercise appropriate
caution.
̈ Switch off the air pump.
̈ Turn off the engine.
̈ If the tire pressure is above 61 psi
(4.2 bar), release excess tire pressure
using the vent screw 4.
Warning!
G
Observe instructions on air pump label.
!
Do not operate the electric air pump
longer than eight minutes without in-
terruption. Otherwise it may overheat.
You may operate the air pump again af-
ter it has cooled off.