Mercedes-Benz E-Class Coupe 2017 Owner's Manual page 427

424 Display messages and warning/indicator lamps
Tyres
Warning/indicator lamp
h
Tyre pressure monitoring
system warning lamp lights
up
Possible causes/consequences and
The yellow tyre pressure monitoring system warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring system has detected tyre pressure loss in at least one of the tyres.
& WARNING Risk of an accident due to insufficient tyre pressure
Tyres with insufficient tyre pressure pose the following risks:
The tyres may burst, especially as the load and vehicle speed increase.
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The tyres may wear excessively and/or unevenly, which may greatly impair tyre traction.
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‑ The driving characteristics, steering and braking may be greatly impaired.
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You could then lose control of the vehicle.
Observe the recommended tyre pressures.
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Adjust the tyre pressure if necessary.
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Stop the vehicle, paying attention to road and traffic conditions.
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Check the tyre pressure and the tyres.
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M M Solutions