Mercedes-Benz CLS-Class 2013 Owners Manual - Manual (Page 362)

X Turn the SmartKey to position 0 in the
ignition lock.
X If the tire pressure is higher than the
specified pressure, press pressure release
button ; until the correct tire pressure has
been reached.
X Unscrew union nut : on the air hose from
the valve.
X Screw the valve cap onto the collapsible
spare wheel valve again.
X Stow plug ? and the air hose in the lower
section of the blower housing.
X Stow the tire inflation compressor in the
vehicle.
360
Emergency spare wheel
Wheels and tires