Mercedes-Benz GLC 2019, Owner'S Manual

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Warning/indicator lamp
Possible causes/consequences and M M Solutions
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Adjust your speed and continue to drive carefully, leaving a suitable distance to the vehicle in front.
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If the multifunction display shows a display message, please observe it.
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Consult a qualified specialist workshop.
J
Brake system warning lamp
(red)
The red brake system warning lamp is lit while the engine is running.
Possible causes:
R
The brake force boosting is malfunctioning and the braking characteristics may be affected.
R
There is insufficient brake fluid in the brake fluid reservoir.
& WARNING Risk of accident and injury if brake force boosting is malfunctioning
If brake force boosting is malfunctioning, increased brake pedal force may be necessary for braking. The braking
characteristics may be impaired. The braking distance can increase in emergency braking situations.
#
Stop in a safe location immediately. Do not continue driving!
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Consult a qualified specialist workshop.
& 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.
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Stop the vehicle as soon as possible, paying attention to road and traffic conditions. Do not continue driving.
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Consult a qualified specialist workshop.
586 Display messages and warning/indicator lamps