Mercedes-Benz C-Class-Saloon 2020 Owner's Manual page 428

Vehicles with a tyre pressure monitoring
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system: if an emergency spare wheel is fit‐
ted the tyre pressure monitoring system can‐
not function reliably. For a few minutes after
an emergency spare wheel is fitted, the sys‐
tem 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
related subjects:
Notes on tyre pressure ( page 411)
R /
Tyre pressure table ( page 412)
/
R
Notes on fitting tyres ( page 414)
/
R
Internal use only
Wheels and tyres 425