Mercedes-Benz S-Class 2020 Owner's Manual page 521

518 Display messages and warning/indicator lamps
Display messages
Ù
Rear axle steering Malfunc-
tion Stop immediately
Snow chain mode Maxi-
mum speed exceeded
Active bonnet malfunction
See Owner's Manual
Possible causes/consequences and
* The rear axle steering is malfunctioning.
The rear axle has no steering capability.
The steering wheel may tilt considerably when you drive in a straight line.
Depending on the steering wheel's tilting position, the steering wheel will also vibrate and a continuous warning
tone will sound.
& WARNING Risk of accident if steering capability is impaired
If the steering does not function as intended, the vehicle's operating safety is jeopardised.
Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions.
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Do not continue driving under any circumstances.
Consult a qualified specialist workshop.
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When stopping, bear the enlarged vehicle width in mind.
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* The maximum permissible speed for snow chain mode has been exceeded.
Drive more slowly.
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* The active bonnet (pedestrian protection) is malfunctioning or inoperative after having already been triggered.
Consult a qualified specialist workshop.
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M M Solutions