Mercedes-Benz R-Class 2009 Owners Manual - Manual (Page 374)

Flat tire
372
X Press I on electric air pump switch 2 .
The electric air pump switches on and
inflates the collapsible tire.
X Inflate the collapsible tire to the
recommended tire inflation pressure as
specified for your vehicle (
Y page 396).
This should take approximately 5 minutes.
G Warning!
The air hose and the union nut can become
hot during inflation. Exercise proper
caution to avoid burning yourself when
using the equipment.
! Do not operate the electric air pump
longer than 8 minutes without interruption.
Otherwise it may overheat.
You may operate the air pump again after
it has cooled off.
! Compare the recommended tire inflation
pressure for your vehicle with the tire
inflation pressure on the yellow label
located on the spare wheel rim.
If the tire inflation pressure on the yellow
label on the spare wheel rim differs from
the values given in this Operator’s Manual,
inflate the tire to the recommended tire
inflation pressure given on the yellow label
on the spare wheel rim.
X Press 0 on electric air pump switch 2 .
X Turn the SmartKey in the starter switch to
position
0.
or
X Vehicles with KEYLESS-GO: Press the
KEYLESS-GO start/stop button twice. Do
not depress the brake pedal.
X Version 1 only: If the tire inflation pressure
is above the recommended tire inflation
pressure as specified for your vehicle
(
Y page 396), decrease tire pressure using
the vent screw on air hose 4 .
X Version 2 only: If the tire inflation pressure
is above the recommended tire inflation
pressure as specified for your vehicle
(
Y page 396), decrease tire pressure using
deflate button 6 .
G Warning!
Follow recommend inflation pressures.
Do not overinflate tires. Overinflating tires
can result in sudden deflation (blowout)
because they are more likely to become
punctured or damaged by road debris,
potholes, etc.
Do not underinflate tires. Underinflated
tires wear unevenly, adversely affect
handling and fuel economy, and are more
likely to fail from being overheated.
X Detach the electric air pump.
X Reinstall collapsible tire valve cap.
X Version 1 only: Store electrical plug 3
and air hose 4 behind flap 1 and place
the electric air pump back in its designated
storage space.
X Version 2 only: Store electrical plug 3
and the air hose back into the pump
housing bottom.
X Place the electric air pump back in its
designated storage space.
X Lower the vehicle.
Lowering the vehicle
G Warning!
Inflate collapsible tire only after the wheel
is properly attached.
Inflate the collapsible tire using the electric
air pump before lowering the vehicle.
Practical hints