Mercedes-Benz S-Class 2019 Operator's Manual page 527

Warning/indicator lamp
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ABS warning lamp
Possible causes/consequences and
Consult a qualified specialist workshop.
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Do not add brake fluid.
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Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions. Do not
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continue driving under any circumstances.
Observe the messages on the multifunction display.
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Consult a qualified specialist workshop.
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The yellow ABS warning lamp is lit while the engine is running.
ABS is malfunctioning.
If there is an additional warning tone, EBD is malfunctioning.
Other driving systems and driving safety systems may also malfunction.
& WARNING There is risk of skidding if EBD or ABS is malfunctioning
If EBD or ABS is malfunctioning, the wheels could lock when braking
The steering capability and braking characteristics are thus severely impaired. The braking distance in an emer‐
gency braking situation can increase. In addition, other driving safety systems are switched off.
Drive on carefully.
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Have the brake system checked immediately at a qualified specialist workshop.
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Drive on carefully.
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Display messages and warning/indicator lamps 525
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