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Seats Frames: Adjustments Audi A8 D2 facelift

Seats 1 illustration ~873 words

Remove switch for seat adjustment

  1. Remove screws -5- and/or -6- (2 Nm/18 in.lb.). (Scheme 1) CAUTION: Note on vehicles with side airbag the instruction for installing the seat. See «VEHICLES WITH SIDE AIRBAG»(ref-196888-S14091792222005101000000).

Headrest adjustment motor and sensor, removing and installing

  1. Seat removed
  2. Seatback cover and seatback cushion

End switch for headrest adjustment, removing and installing

  1. Seat removed
  2. Seatback cover and seatback cushion
  1. Drill out two rivets on headrest adjustment cover and remove cover.
  2. Drill out 2 rivets -3- and -4-. see scheme 45
  3. Remove retaining bracket for end switch for headrest adjustment.
  4. Unhook wire bracket for seatback cushion to upper strap (arrow).
  5. Cut tie wraps open and disconnect connectors -1-, -2- and -5-.

Pump, pressure switch and valve block for lumbar adjustment, removing and installing

  1. Seat removed
  2. Seatback cover and seatback cushion
  1. Cut open tie wrap to protective sack, release sack from seatback frame (double sided ban) and remove.
  2. Remove valve block for lumbar adjustment -3- from seatback frame. see scheme 46
  3. Loosen air pillow -1- and -2- carefully from styro plate (double adhesive).
  4. Disconnect connectors to pump for lumbar adjustment -5-, to pressure switch for lumbar adjustment -4- and to valve block -3- for lumbar adjustment.
  5. Remove affected hoses.

Motor and sensor for seatback, adjustment and installing

  1. Seat removed
  2. Seatback cover and seatback cushion

Current supply relay for seat adjustment, removing and installing

  1. Seat removed

Control module for seat adjustment with memory, removing and installing

  1. Front and rear seat height adjuster in highest position
  2. Seat removed

Scheme 1

Scheme 1
Scheme 1
  1. Remove nuts (arrows) several rotations.
  2. Remove control module for seat adjustment with memory from bracket.
  3. Remove connector. NOTE: Colors of connector are stamped into connector fields of control module.

Electric headrest adjustment, removing and installing

Note. The following list refers to see scheme 69.

  1. Electric headrest adjustment Remove back rest. See «REAR SEATBACK, REMOVING AND INSTALLING»(ref-196888-S17478612132005101000000) . Remove upholstery from rear seatback. Disengage lumbar cover. See «ELECTRIC LUMBAR ADJUSTMENT, REMOVING AND INSTALLING»(ref-196888-S18013053112005101000000) . Disconnect harness connector -9-. Remove nuts -12-. Remove nuts -7-.
  2. Shaft
  3. Relay carrier Slide upward to unclip.
  4. Bolts 3x Tightening torque: 2 Nm
  5. Washers 3x
  6. Rubber buffer 3x
  7. Nut 3x Tightening torque: 2 Nm
  8. E-motor, headrest adjustment Belongs to headrest adjustment delivery casing
  9. Harness connector
  10. Nut 2x Tightening torque: 3.5 Nm
  11. Rubber buffer 2x
  12. Nut 2x Tightening torque: 3.5 Nm

Electric lumbar adjustment, removing and installing

Note. The following list refers to see scheme 70.

  1. Lumbar adjustment unit Removing: Remove back rest. See «REAR SEATBACK, REMOVING AND INSTALLING»(ref-196888-S17478612132005101000000) . Remove upholstery from rear seatback. Disengage loop -7-. Fold cover -10- down. Bend open tabs at top -9- and bottom. Disengage brackets -8- and -5-. Separate bracket -6- from lumbar adjustment unit -1-. Remove spring clip to hinge from transmission of motor for vertical lumbar adjustment. Remove spring clip at lumbar adjustment unit -1- from shaft -2- and remove shaft from lumbar adjustment unit -1-. Installing: Center lumbar adjustment unit -1- to mounting strap of rear seatback.
  2. Shaft for lumbar height adjustment
  3. Motor for vertical lumbar adjustment
  4. Motor for lumbar height adjustment
  5. Bracket
  6. Bracket
  7. Loop 2x
  8. Bracket
  9. Strap 2x
  10. Cover

Motors for lumbar adjustment, removing and installing

Note. The following list refers to see scheme 71.

  1. Motor for vertical lumbar adjustment Remove back rest. See «REAR SEATBACK, REMOVING AND INSTALLING»(ref-196888-S17478612132005101000000) . Remove upholstery from rear seatback. Disconnect harness connector -4-. Remove nuts -3-. Remove spring clip to hinge -7- from transmission -6-. Remove spring clip at lumbar adjustment unit from shaft -2- and remove shaft from lumbar adjustment unit. Disconnect motor for vertical lumbar adjustment -1- from bracket.
  2. Shaft for lumbar height adjustment
  3. Nut 3x Tightening torque 2 Nm.
  4. Harness connector
  5. Motor for lumbar height adjustment Remove back rest. See «REAR SEATBACK, REMOVING AND INSTALLING»(ref-196888-S17478612132005101000000) . Remove upholstery from rear seatback. Disconnect harness connector -4-. Remove nuts -3-. Remove spring clip to hinge -7- from transmission -6-. Remove spring clip at lumbar adjustment unit from shaft -2- and remove shaft from lumbar adjustment unit. Disconnect motor for lumbar height adjustment -5- from bracket.
  6. Transmission for lumbar height adjustment
  7. Driveshaft
  8. Rear seatback frame
  9. Edge protection
  10. Rubber buffer 3x
  11. Bolts 3x Tightening torque: 2 Nm
  12. Washers 3x

Wire routing for electric lumbar adjustment and electric headrest, adjustment

Note. Illustration depicts cable routing on left side (viewed from front); the right side is a mirror image.

Note. The following list refers to see scheme 72.

  1. Wiring harness, electric lumbar adjustment
  2. Side airbag module
  3. Shaft for lumbar height adjustment
  4. Motors, electric lumbar adjustment
  5. Motor, electric headrest adjustment
  6. Shaft for headrest adjustment
  7. Relay carrier, electric headrest adjustment
  8. Wiring harness, electric headrest adjustment
  9. Cable ties

Power seatback adjustment motor, removing and installing

Note. The following list refers to see scheme 89.

  1. Rear seatback
  2. Motor for left headrest adjustment -V103- and motor for right headrest adjustment -V104
  3. Pressure switch for lumbar support, drivers side -F224- and pressure switch for lumbar support, passenger side -F225
  4. Pressure switch for lumbar support, drivers side -F224- and pressure switch for lumbar support, passenger side -F225
  5. Tie wrap
  6. Connector
  7. Bolt 6 Nm (53 in.lb.) 2 parts
  8. Bowden cable
  9. Tie wrap
  10. Connector
  11. Bolt 6 Nm (53 in.lb.) 2 parts
  12. Bowden cable
  13. Connector
  14. Nut 6 Nm (53 in.lb.) 3 parts
  15. Lock ring
  16. Transfer gear case
  17. Bolt 6 Nm (53 in.lb.) 2 parts

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