BMW 7 Series: Airbag Triggering Unit, Diagnosis Unit

 Front seats- Lumbar support

Concept The curvature of the seat backrest can be adjusted in a way that it supports the lumbar region of the spine. The lower back and the spine are supported for upright posture. Adjusting Press the front/rear section of the button: The curvature is increased/ decreased. Press the upper/l

 System Components

Controls and Control Units Controls The controls for the seat functions are connected depending on the seat equipment. The controls are: Seat-adjustment switches Lumbar support switch Memory buttons Active-seat button Active seat ventilation button Massage function button. Refer to the foll