Mercedes-Benz C-Class Saloon 2022 Owner's Manual page 289

286 Driving and parking
If the parking space is on a steep downhill or
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uphill gradient.
When snow chains are fitted.
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When a trailer or bicycle rack is attached.
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Directly after a tyre change or when spare
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tyres are fitted.
If the tyre pressure is too low or too high.
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If the suspension is out of alignment, e.g. after
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bottoming out on a kerb.
On steep inclines of more than approximately
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15 %.
▌Parking with Active Parking Assist
Press 1 button.
#
2 Parking Assistance
Select
#
Parking spaces 3 detected by the system are
shown in the central display.
menu.