2020-2026 Mercedes GLA SUV Wheels and tyres -> Emergency spare wheel User Manual
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Wheels and tyres -> Emergency spare wheel for Your Mercedes GLA SUV Second Generation (2020-2026)

Vehicles with a tyre pressure monitoring sys-
tem: if an emergency spare wheel is tted, the
tyre pressure monitoring system cannot func-
tion reliably. For a few minutes aer an emer-
gency spare wheel is tted, the system may
still display the tyre pressure of the removed
wheel. Only restart the system again when the
emergency spare wheel has been replaced
with a new wheel.
Be sure to also observe the following further rela-
ted subjects:
R
Notes on tyre pressure (/ page 621)
R
Tyre pressure table (/ page 622)
R
Notes on tting tyres (/ page 625)
R
Fitting an emergency spare wheel
(/ page 630)
Inating the emergency spare wheel
*
NOTE Overheating due to the tyre ination
compressor running too long
#
Do not run the tyre ination compressor
for longer than ten minutes without inter-
ruption.
Requirements:
R
The emergency spare wheel has been tted
correctly. (/ page 630)
%
Comply with the manufacturer's safety notes
on the sticker of the emergency spare wheel
and on the tyre ination compressor.
#
Remove the sticker with the label 80 km/h
from the tyre ination compressor housing
and ax it to the instrument cluster within the
driver's eld of vision.
#
Remove the tyre ination compressor from the
stowage space under the luggage compart-
ment oor. (/ page 53)
#
Pull ller hose 1 and plug 3 out of the tyre
ination compressor housing.
#
Insert plug 7 of ller hose 1 in the socket
on the tyre ination compressor and then turn
it until plug
7 engages.
#
Unscrew the cap from the valve on the emer-
gency spare wheel.
#
Screw union nut 2 of ller hose 1 onto the
valve.
#
Make sure on and o switch 4 of the tyre
ination compressor is set to
0.
#
Insert plug 3 in a socket in your vehicle.
R
Cigarette lighter socket
636
Wheels and tyres
F247 0074 02
R
12 V socket: (/ page 206)
R
Observe the notes on the cigarette lighter in
the Digital Owner's Manual
R
Observe the notes on sockets: (/ page 206)
#
Press the start/stop button once to switch on
the power supply (/ page 246).
#
Press On/O switch 4 on the tyre ination
compressor to
I.
The tyre ination compressor is switched on.
The tyre is inated. The tyre pressure appears
on manometer 5.
#
Pump the tyre to the specied tyre pressure.
%
The specied tyre pressure is stated on the
label of the emergency spare wheel.
#
When the specied tyre pressure has been
reached, press on and o switch 4 on the
tyre ination compressor to
0.
The tyre ination compressor is switched o.
#
Press the start/stop button to switch o the
power supply.
#
If the tyre pressure is higher than the specied
pressure, press pressure release valve button
6 until the correct tyre pressure has been
reached.
#
Unscrew union nut 2 of ller hose 1 from
the valve.
#
Screw the valve cap of the emergency spare
wheel onto the valve again.
#
Stow ller hose 1 and plug 3 in the lower
section of the tyre ination compressor hous-
ing.
#
Stow the tyre ination compressor in the vehi-
cle.
Wheels and tyres
637
F247 0074 02

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