Overview - Backrest

Fig 1: Overview - Backrest

Courtesy of AUDI OF AMERICA, LLC

Pneumatic Lumbar Support
- Comfort seat only
- Module with air cushions, valve block, and backrest bolster adjuster
- Overview. Refer to OVERVIEW - PNEUMATIC SYSTEM .
Pop Rivet
Electro-Mechanical Lumbar Support
- Equipped on some models
  - Driver Seat Lumbar Support Curvature Adjustment Motor -V125-, Front Passenger Seat Lumbar Support Curvature Adjustment Motor -V126-
  - Driver Seat Lumbar Support Height Adjustment Motor -V129-, Front Passenger Seat Lumbar Support Height Adjustment Motor -V130-
- For Standard/Sport seat
- Removing and installing. Refer to LUMBAR SUPPORT ADJUSTMENT MOTORS -V125- / -V126- / -V129- / -V130-, REMOVING AND INSTALLING .
Tension Springs
- For spring mat
- Quantity: 8
- Note the different lengths
Spring Mat
- Standard seat only, optional equipment
- Removing and installing. Refer to SPRING MAT, REMOVING AND INSTALLING .
Rubber Bracket
- For blower fan
- Quantity: 4
- Insert in the lumbar support
Backrest Blower Fan
- Comfort seat only, optional equipment
  - Driver Seat Backrest Blower Fan -V388-, Front Passenger Seat Backrest Blower Fan -V389-
- Removing and installing. Refer to FRONT SEAT FAN, REMOVING AND INSTALLING, SEAT BACKREST .
Support
- Only for vehicles with: multimedia system
- Removing and installing. Refer to MULTIMEDIA SYSTEM DISPLAY UNIT SUPPORT, REMOVING AND INSTALLING .
Bolt
- Quantity: 4
- Only for vehicles with: multimedia system
- 6.5 Nm
Trim
- Only for vehicles with: multimedia system
- Removing and installing. Refer to MULTIMEDIA SYSTEM DISPLAY UNIT SUPPORT, REMOVING AND INSTALLING .
Insert
- Removing and installing. Refer to HEADREST GUIDE, REMOVING AND INSTALLING .
Backrest Frame
- Removing and installing. Refer to BACKREST, REMOVING AND INSTALLING .
Backrest Cover
- Removing and installing. Refer to BACKREST COVER, REMOVING AND INSTALLING .
Hand Wheel
- For the manual backrest adjustment
- Removing and installing. Refer to BACKREST ADJUSTER, REMOVING AND INSTALLING .
Bolts
- Quantity: 4
- Self-locking
- Always replace after removing
- Threaded holes for the bolts must be cleaned, for example, with a thread tap
- 33 Nm
Retainer
- For the seat frame trim panel
- Comfort seat only
- Removing and installing. Refer to BACKREST, REMOVING AND INSTALLING .
Bolt
- Quantity: 2
- 5 Nm
Upholstery Wire
- For the backrest
- Sport/Comfort seat only
- Quantity: 2
Bolt
- Tightening Specification. Refer to -item ) Bolt-.