• 37.28.1 Basic information9
• 37.28.3 Retrofitting/modification1
• 37.28.11 Control unit/relay5
• 37.28.12 Sensor/switch/wiring harness3
• 37.28.13 Line/hose/valve1
• 37.28.30 Passenger seat, complete8
• 37.28.41 Seat cushion7
• 37.28.42 Seat backrest/head restraint11
• 37.28.46 Seat adjustment6