Functions included in the system
The City Emergency Braking System and Pedestrian Monitoring (depending on vehicle equipment)
are part of Front Assist and are automatically active when Front Assist is switched on.
Warning levels and braking intervention
First read and observe the introductoryinformation and safety warnings
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Introduction
Distance warning
The system detects when safety is endangered by driving too close to the vehicle in front. The
warning lamp
Lit up Increase the distance.
Speed range: around 65 km/h (40 mph) to 250 km/h (155 mph).
Advance warning
The system detects a possible collision with a vehicle in front or a pedestrian crossing in front of the
vehicle and prepares the vehicle for possible emergency braking.
A warning tone sounds and the warning lamp
Lit up Brake or take evasive action.
Speed range: around 30 km/h (20 mph) to 250 km/h (155 mph).
Urgent warning
If the driver does not react to the advance warning, the system may initiate a short braking jolt in
order to draw attention to the increasing collision risk. Brake or take evasive action.
Speed range: around 30 km/h (20 mph) to 250 km/h (155 mph).
Automatic braking
If the driver also does not react to the urgent warning, the vehicle can be braked automatically with
braking force that increases in several stages. The reduced speed means that it is possible to
minimise the consequences of an accident.
Speed range: around 5 km/h (3 mph) to 250 km/h (155 mph).
Braking intervention
If the system detects that the driver is braking insufficiently when there is a risk of collision, the
system can increase the braking force and help prevent a collision. The braking intervention takes
place only for as long as the brake pedal is pressed hard.
Speed range: around 5 km/h (3 mph) to 250 km/h (155 mph).
The intelligent technology of Front Assist cannot overcome the laws of physics, and
functions only within the limits of the system. Never let the extra convenience afforded by
Front Assist tempt you into taking risks when driving. The driver is always responsible for
braking in time.
• If Front Assist issues a warning, brake your vehicle immediately depending on the
traffic situation or avoid the obstacle.
• Adapt your speed and distance from the vehicles ahead to suit visibility, weather, road
and traffic conditions.
• Front Assist cannot prevent accidents and serious injuries on its own.
• Front Assist can issue unnecessary warnings and carry out unwanted braking
interventions in certain complex driving situations, e.g. at traffic islands.
• Front Assist can issue unnecessary warnings and carry out unwanted braking
interventions when its function is impaired, e.g. if the radar sensor is dirty or its
position has been changed.
• Front Assist without Pedestrian Monitoring does not react to persons. In addition, the
system does not react to animals or crossing vehicles or to vehicles that are
approaching in the same lane.
• If you are unsure whether the vehicle possesses Pedestrian Monitoring, please enquire
about this at a qualified workshop before starting your journey.
• Be prepared to take over control of the vehicle yourself at all times.
WARNING
