How do I adjust the seat for the BMW X3? Jane March 01, 2024 04:40 Updated The BMW X3 has a 8-Way Electric Driver Seat. This switch can be found on just the right side of the driver's seat. To adjust the Lumbar Support Adjustment follow the step below: Toggle the seat button left and right according to your desired position Related articles How do I switch on/off the headlights for the BMW X3? How do I open the fuel door for the BMW X3? How do I adjust the seat for the BMW X3 2nd Gen? How do I adjust the side mirrors in the BMW X3? How do I start and drive the BMW 5 Series?