1. Seat position sensor. Driver side: Driver seat position sensor "G553". Front passenger side: Front passenger seat position sensor "G554"; 2. Heating element; 3. Footwell light; 4. Four-way lumbar support. Not disassemblable; available only as a complete unit. Driver's side: with driver's seat lumbar support longitudinal adjustment motor "V125". With driver's seat lumbar support height adjustment motor "V129". Front passenger side: with front passenger seat lumbar support longitudinal adjustment motor "V126". With front passenger seat lumbar support height adjustment motor "V130"; 5. Side Airbag, front driver side: with driver side Airbag squib "N199" front passenger side: with front passenger side Airbag squib "N₂00"; 6. Seat occupied sensor on the front passenger side "G128". Compl. option: only for the front passenger seat; 7. Switch for adjusting the position of the lumbar support. On the driver's side: switch for adjusting the position of the lumbar support of the driver's seat "E176". On the front passenger side: switch for adjusting the position of the lumbar support of the front passenger seat "E177"; 8. Used seat ventilation (seat with heating function). Equipment option with driver's seat (with heating): Left front seat ventilation control unit "J800". Equipment variant with front passenger seat (with heating): Right front seat ventilation control unit "J799"The original version is on the portal AudiManual