| Emergency braking function |
| The emergency braking function detects the traffic situation by means of the emergency braking function sensor unit -J939- attached to the interior mirror up to a distance of around 10 metres in front of the vehicle in a speed range of approximately 5 km/h to 30 km/h. |
| If the system detects a possible collision with a vehicle driving in front, the vehicle is prepared for possible emergency braking. If the driver does not react to the threat of a collision, the system can brake the vehicle automatically in order to reduce the speed for a possible collision. If the emergency braking function determines that the driver does not brake sufficiently when faced with the threat of a collision, the system can increase the braking force in order to reduce the speed for a possible collision. |
| In the following situations, it is possible that the emergency braking function will not react: |
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| When accelerator pedal is fully depressed |
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| If emergency braking function has been switched off or is faulty |
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| If the laser sensor is dirty, is covered or has overheated |
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| During a snowfall, in heavy rain or in dense fog |
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| If vehicle is offset in relation to other vehicles |
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| When other vehicles cut across the driving direction |
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| When there are oncoming vehicles in the same lane |
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| If vehicles are dirty with a low degree of reflection |
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| When there is a lot of dust in the air |
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| When the emergency braking function triggers a braking process, the pedal travel of the brake pedal decreases. As a result, the brake pedal feels „harder“. |
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| During automatic braking carried out by the emergency braking function, it is possible that unusual noises will occur. These are normal and are caused by the brake system. |
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| Automatic braking triggered by the emergency braking function can be cancelled by depressing the clutch pedal or the accelerator pedal, or by turning the steering wheel. |
| Fault detection and fault display: |
| The sensor unit for the emergency braking function has a self-diagnosis feature. |
| For fault finding, use vehicle diagnosis, testing and information system -VAS 5051A- or vehicle diagnosis and service information system -VAS 5052- in „Guided fault finding“ mode. |
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