BMW 5 Series Owners & Service Manuals

BMW 5 Series: Side Collision Avoidance

The Side Collision Avoidance is part of the Active Lane Keeping Assistant with Side Collision Avoidance. The Active Lane Keeping Assistant with Side Collision Avoidance is part of the scope of supply of the Active Driving Assistant Plus, optional equipment (OE 5AT). The Side Collision Avoidance is not available separately.

The Side Collision Avoidance assists the driver in avoiding a potential side collision.

Four radar sensors monitor the area next to the vehicle and function regardless of the lighting conditions and largely irrespective of the weather conditions.

Side Collision Avoidance
G30 Vehicle detection using radar sensors (Side Collision Avoidance)

If there is a risk of a collision, the corresponding indicator flashes (depending on which side the risk relates to, left or right) in the exterior mirror with high intensity and the steering wheel starts to vibrate.

Side Collision Avoidance
G30 Signal unit (LED) in mirror glass

An active steering intervention is then initiated, which assists the driver in moving his vehicle back to a safe area within his own lane.

Side Collision Avoidance
G30 Side Collision Avoidance with active steering intervention in the event of a potential side collision

The steering intervention is initiated within a speed range of between 43 and 130 mph (70 km/h and 210 km/h).

The active steering intervention can be felt on the steering wheel, but can be manually overridden by the driver at any time.

Radar sensors

The rear radar sensors are Blind Spot Detection (SWW) sensors.

Side Collision Avoidance
G30 Blind Spot Detection (SWW) (radar sensors)

Two additional radar sensors are used for the front Side Collision Avoidance.

Side Collision Avoidance
G30 Side Collision Avoidance (radar sensors)

Functional prerequisites

A prerequisite for the activation of the Side Collision Avoidance with steering intervention is that the lane markings must be detected by the KAFAS stereo camera.

If the lane markings are not detected or if the driver is driving within the speed range of 18 to 43 mph (30 to 70 km/h), only the reduced Side Collision Avoidance is active. The warning functions in the form of the flashing indicator in the exterior mirror and the vibration of the steering wheel continue to be implemented.

With the reduced Side Collision Avoidance there is no active lateral guidance of the vehicle. In this case the driver is only warned by a single steering wheel pulse on the opposite side of the wheel to the danger.

The Side Collision Avoidance can be switched on and off via the iDrive menu by making the following selection via the controller:

  • "My Vehicle"
  • "Vehicle settings"
  • "Intelligent Safety"
  • "Side Collision Avoidance"

The configuration menu can be accessed quickly by pressing the Intelligent Safety button.

Side Collision Avoidance
G30 Intelligent Safety view on the CID (Side Collision Avoidance)

  1. "Configure INDIVIDUAL" menu
  2. "Side Collision Avoidance"
  3. "Side Collision Avoidance" (switching the side collision warning with steering intervention on and off)

It is not possible to switch off the steering intervention for the Side Collision Avoidance separately.

The Side Collision Avoidance automatically activates itself again after the vehicle moves off if the function was switched on at the time of the last engine shutdown.

Limits of the system

The function of the system may not be available or may only be available to a limited extent in the following situations.

  • Heavy fog, rain or snow.
  • At sharp bends or on narrow roadways.
  • If the bumper is dirty, iced up or stickers are placed over it.
  • If driving at close proximity to a vehicle driving ahead.
  • If the speed of the approaching vehicle is much higher than the driver's speed.


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