Mercedes-Benz E-Class Operator's Manual page 400

398 Display messages and warning/indicator lamps
Safety systems
Warning/indicator lamp
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Brake warning lamp (USA)
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Brakes warning lamp (Can‐
ada)
Possible causes/consequences and
The red brake system warning lamp is lit while the engine is running.
Possible causes are:
The brake force boosting is malfunctioning and the braking characteristics may be affected.
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There is not enough brake fluid in the brake fluid reservoir.
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& WARNING There is a risk of an accident if brake force boosting is malfunctioning
If brake force boosting is malfunctioning, the wheels may lock when braking. Braking characteristics may be
impaired. The braking distance in an emergency braking situation can increase.
Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions. Do
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not continue driving under any circumstances.
Consult a qualified specialist workshop.
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& WARNING Risk of an accident due to low brake fluid level
If the brake fluid level is too low, the braking effect and the braking characteristics may be impaired.
Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions. Do
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not continue driving under any circumstances.
Consult a qualified specialist workshop.
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Do not add brake fluid.
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