Driver-assistance radar

Behind a suitable front, rear or corner cover depending on function.

Radio reflections help estimate target distance and movement; control uses system-specific processing.

An electronic distance observer using radio waves.

Assistance unavailability can result from obstruction, alignment, damage or electronics.

Inspect and service using model-specific guidance, especially after a collision; warning lights require diagnosis.

Calibration, matched modules and post-collision work may dominate cost. An illuminated warning does not identify a replaceable part.

BMW safety systems according to market, model year and option package.