Audi A6 Typ 4G: Audi braking guard

Applies to: vehicles with Audi adaptive cruise control

Fig. 99 Instrument cluster: approach warning

The braking guard uses radar sensors and a video camera. It also functions within the limits of the system when adaptive cruise control is switched off.

What can the braking guard do?

When detected in time, the system can assess dangerous situations where an object ahead brakes suddenly or if your own vehicle is traveling at a high speed and approaching an object that is moving more slowly. The braking guard does not react if it cannot detect the situation.

The system advises you of various dangerous situations:

• The distance warning occurs if you drive too closely to the object ahead for a long period of time. If the object ahead brakes strongly, you would not be able to avoid a collision. The indicator light appears as an indication for this.
• The approach warning occurs when an object ahead is traveling more slowly or brakes strongly. When this warning occurs, it may only be possible to avoid a collision by swerving or braking strongly. The danger is indicated by the indicator light fig. 99. An audio signal will also sound.

If you do not react early enough or at all to a dangerous situation, the braking guard supports you with a braking intervention.

• If a collision is imminent, the system will first provide an acute warning by braking sharply.
• If you do not react to the acute warning, the braking guard can increase the braking force within the limits of the system. This reduces the vehicle speed in the event of a collision.
• The system can initiate complete deceleration shortly before a collision. Full deceleration at high speeds occurs only in vehicles with adaptive cruise control and side assist (pre sense plus).
• If the braking guard determines that you are not braking strongly enough when there is an impending collision, it can increase the braking force.
• The pre sense functions also engage when there is an impending collision.

Which functions can be controlled?

You can switch the braking guard and the distance/ approach warning on or off in the Infotainment system.

WARNING

Lack of attention can cause collisions, other accidents and serious personal injuries. The braking guard is an assist system and cannot prevent a collision by itself. The driver must always intervene. The driver is always responsible for braking at the correct time.

• Always pay close attention to traffic, even when the braking guard is switched on. Be ready to intervene and be ready to take complete control whenever necessary. Always keep the safe and legal distance between your vehicle and vehicles up ahead.
• Braking guard works within limits and will not respond outside the system limits, for example when approaching a stopped vehicle or stationary obstacle (end of a traffic jam or vehicle that has broken down in traffic).
• Always remember that the radar sensor for the braking guard works only within defined detection and range limits that may prevent the proper detection of other vehicles.
• The radar sensor's function and range can be reduced by rain, snow and heavy spray.

  Moving vehicles up ahead may not be promptly detected or may not be detected at all.

• Reflective surfaces including crash barriers or tunnel entrances may impair the function of the radar sensor.

Tips

• You can cancel the braking with increasing force that is initiated by the system by braking yourself, by accelerating noticeably or by swerving.
• Keep in mind that braking guard can brake unexpectedly. Always secure any cargo or objects that you are transporting to reduce the risk of damage or injury.

Settings in the Infotainment system

Applies to: vehicles with Audi adaptive cruise control

• Select: the [CAR] function button > (Car) Systems control button > Driver assistance > Audi braking guard.

System - Switch the braking guard On/Off. When you switch the ignition on, the message Braking guard: Off appears if the system is switched off.

Early warning - The distance and approach warnings in the display can be switched On/Off.

Tips

• Your settings are automatically stored and assigned to the remote control key being used.
• If you restrict or switch off the ESC, the braking guard also switches itself off.
• Switch braking guard off when you are loading the vehicle onto a vehicle carrier, train, ship or other type of transportation. This can prevent undesired warnings from the braking guard system.

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