Assistance during collision risks limitations
Braking assistance limitations
Extra equipment
Hanging objects, such as a flag or streamer to signal an over-sized load, or accessories such as auxiliary lights or front protective grids that extend beyond the height of the vehicle's hood, may obstruct the camera or radar unit.
Slippery road conditions
The extended braking distance on slippery roads may reduce the function's capacity to help avoid a collision. In these types of situations, the Anti-lock Braking System and Electronic Stability Control (ESC2) are designed for optimal braking power with maintained stability.
Low speed
The function is not activated at very low speeds under 4 km/h (3 mph). The system will therefore not intervene in situations in which your vehicle is approaching another vehicle very slowly, such as when parking.
Active driver
The driver's commands are always prioritized. In situations in which the driver is clearly steering and applying the accelerator pedal, the function will not intervene, even if a collision is unavoidable. An active and aware driving style may therefore delay collision warnings and intervention in order to minimize unnecessary warnings.
Steering assistance limitations
- for smaller vehicles such as motorcycles
- if more than half of your vehicle has moved into the adjacent lane
- on roads/lanes with indistinct or no side lane markings
- outside the speed range 60-140 km/h(37-87 mph)
- when speed-dependent power steering wheel resistance is working at reduced power – e.g. during cooling due to overheating.
- road work
- winter driving conditions
- narrow roads
- poor road surfaces
- a very sporty driving style
- bad weather with reduced visibility.
In these demanding driving conditions, the function may not be able to properly assist the driver.
Important warnings
Warning
- Never wait for a warning or assistance. Apply the brakes when necessary.
Warning
- Auto-braking can prevent a collision or reduce collision speed, but to ensure full brake performance the driver should always depress the brake pedal – even when the vehicle brakes automatically.
- The warning and steering assistance are only activated if there is a high risk of collision – you must therefore never wait for the collision warning or the function to intervene.
- The function does not activate automatic braking intervention during heavy acceleration.
Warning
- Warnings and brake interventions can be triggered late or not at all if the traffic situation or external influences prevent the camera and radar sensor from properly detecting pedestrians, cyclists or vehicles ahead of the vehicle.
- To be able to detect vehicles at night, its front and rear lights must work and illuminate clearly.
- Warnings for stationary or slow-moving vehicles may be disabled due to darkness or poor visibility.
- Warnings and brake interventions for pedestrians and cyclists are disengaged at vehicle speeds over 80 km/h (50 mph).
- The system can provide effective warnings and brake intervention if the relative speed is lower than 50 km/h (30 mph).
- For stationary or slow-moving vehicles, warnings and brake interventions are effective at vehicle speeds of up to 70 km/h (43 mph).