Mercedes-Benz A-Class 2021 Operator's Manual page 320

318 Wheels and tires
Be sure to also observe the following further
related subjects:
Notes on tire pressure ( page 288)
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Tire and Loading Information placard
R
( page 295)
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Tire pressure table ( page 290)
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Notes on installing tires ( page 307)
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Inflating the emergency spare wheel
* NOTE Overheating due to the tire infla‐
tion compressor running too long
Do not run the tire inflation compressor
#
for longer than ten minutes without
interruption.
Requirements:
Comply with the manufacturer's safety notes on
the sticker of the emergency spare wheel and on
the tire inflation compressor.
Remove the sticker with the label 50 mph
#
(80 km/h) from the tire inflation compressor
housing and affix it to the instrument cluster
within the driver's field of vision.
Remove the tire inflation compressor from
#
the storage well under the trunk floor
( page 268).
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Pull filler hose 1 and plug 3 out of the tire
#
inflation compressor housing.
Insert plug 7 of filler hose 1
#
on the tire inflation compressor and then
turn it until plug 7 engages.
Unscrew the cap from the valve on the emer‐
#
gency spare wheel.
Screw union nut
#
valve.
Make sure on and off switch
#
inflation compressor is set to 0.
Insert plug 3
#
12 V socket (
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Observe the notes on sockets (
R
Press the start/stop button once to switch
#
on the power supply (
Press on and off switch
#
tion compressor to I.
The tire inflation compressor is switched on.
The tire is inflated. The tire pressure is
shown on manometer 5.
Pump the tire to the specified tire pressure.
#
% The specified tire pressure is stated on the
in the socket
label of the emergency spare wheel.
When the specified tire pressure has been
#
reached, press on and off switch
tire inflation compressor to 0.
The tire inflation compressor is switched off.
2 of filler hose 1 onto
4 of the tire
in a socket in your vehicle.
page 105)
page 105).
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page 125).
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4 on the tire infla‐
4 on the