Shop › BMW E30 E24 Seat Backrest Tilt Release Lever Handle Knob 52101904964. Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 BMW E30 E24 Seat Backrest Tilt Release Lever Handle Knob 52101904964. $19.99 BMW E30 E24 Seat Backrest Tilt Release Lever Handle Knob 52101904964. Add To Cart Added! BMW E30 E24 Seat Backrest Tilt Release Lever Handle Knob 52101904964.