Fuel Filler Door
Cover to fuel filler door nut
Fuel filler door to fender screw
Fuel filler door unlock motor to fender screw

Front Doors, Central Locking System
Tightening Specifications (cont'd)
Component
Front backing to door bolt
Fuel filler door to fender bolt
Hood catch bolt
Window regulator to door nut
Window regulator motor to door bolt

Nm
2.5
1.7
25
6
3.5

Rear Doors Tightening Specifications
Component
Rear Door
Bottom door hinge to body bolt
Bottom door hinge to door bolt
Door arrester bolt
Stud bolt to bottom door hinge bolt
Stud bolt to upper door hinge bolt
Upper door hinge to body bolt
Upper door hinge to door bolt
Door Components
Door lock to door
Door lock cover bolt
Front backing to door bolt
Hood catch bolt
Left rear closing assist motor to door bolt
Left rear window regulator motor to door bolt
Lower window regulator mount to door bolt
Window regulator to door nut

Nm
32
45
8
30
30
32
45
19
3.5
2.5
25
3
3.5
6
6

Sunroof Tightening Specifications
Component
Sunroof
Front guide to frame
Slider to sliding headliner bolt
Sunroof frame to roof bolt/nut
Sunroof frame to sunroof control module bolt
Wind deflector motor to sunroof frame bolt
Panorama Sunroof
Front glass panel to slotted guide rail bolt
Left lifter to sunroof frame bolt
Rear glass panel to lifter bolt
Right lifter to sunroof frame bolt

Nm
1
1.5
8
3
1.5
5.5
1
5.5
1

186 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Component
Roof shade control module to sunroof shade frame bolt
Slotted guide rail with tilting mechanism to panorama
roof frame bolt
Sunroof control module bolt
Sunroof shade bolt
Sunroof shade frame to sunroof frame bolt
Wind deflector bolt

Nm
3
1
3
1
3
1

Body

Assembly Frame to Roof Tightening Sequence

Step
1

Component
Tighten bolts 1 and 18 in sequence

Nm
8

Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 187

Bumpers Tightening Specifications
Component
Front Bumper
Bracket for connecting the bumper cover/lock carrier bolt
Bumper cover bottom plate bolt
Bumper cover
- Bolt
- Nut
Connecting brace 1)
- Bolt
- Bolt
Mount for the bumper cover bolt
Reinforcement brace bolt
Side impact bar bolt
Spacer for the bumper cover bolt
Rear Bumper
Bumper cover lower section bolt
Center mount for the bumper cover bolt
Rear bumper cover nut
Side mount for bumper cover bolt
Upper mount for the bumper cover bolt
1)

Nm
3
3
3
4
9
23
1.5
3
30
7
2
2.5
4
1.5
2.5

For bolt tightening clarification, refer to ElsaWeb, Impact Member Overview, items 8
and 10.

Glass, Window Regulators Tightening Specifications
Component
Heated windshield control module nut

Nm
7.5

Exterior Equipment Tightening Specifications
Component
Trim
B-pillar trim bolt
C-pillar triangle trim bolt
Rear bracket fitting screw
Sill panel cover bolt
Exterior Rearview Mirror
Front exterior rearview mirror housing
Mirror adjusting unit bolt
Seal bolt
Radiator Grille
Mount for night vision system camera
Spoiler
Front outer wheel spoiler

Nm
2.5
2.5
1.5
8
1
1
10
6
2.5

188 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Component
Inner front wheel spoiler
Rear wheel spoiler
Underbody Trim Panels
Front cover for the spare wheel well nut
Rear cover for the spare wheel well
Heat Shields and Crossbraces
Crossbrace bolt
Heat shield nut
Tunnel brace bolt
Wheel housing liners
Front section of front wheel housing liner bolt/nut
Rear section of front wheel housing liner bolt/nut
Rear wheel housing liner bolt

Nm
2.5
2.5
2.5
2
24
2.5
24
2.5
2.5
2.5

Body

Assembly Frame to Roof Tightening Sequence

Step
1
2
3

Component
Tighten bolts 1
Tighten bolts 2
Tighten bolts 3

Nm
hand tighten
2.5
2.5

Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 189

Body Interior
Interior Equipment Tightening Specifications
Component
Armrest
Front center armrest bolt
Rear center armrest bolt
Storage compartment bolt
Front Center Console
Bracket for front center console to carrier bolt
Bracket for storage compartment bolt
Center console
Center console to trim strip bolt
Cupholder bolt
Rear Center Console - Vehicles with Long Wheel Base
Bracket for folding table bolt
Bracket for center console to support nut
Center console
Cover to support bolt
Cover for vehicles without folding table to support bolt
Cupholder bolt
Folding table to bracket bolt
Folding table to trim bolt
Mount for socket to side trim bolt
Mount for cigarette lighter bolt
Side trim for center armrest to center console bolt
Storage compartment bolt
Storage compartment to support bolt
Support for center console bolt
Storage Compartments and Covers
Driver side instrument panel cover bolt
Glove compartment bolt
Glove compartment cover to glove compartment bolt
Lower trim to upper trim for steering column bolt
Support to folding table bolt

Nm
4.5
4.5
4
4.3
4.5
4.5
1.6
4.5
4.3
3
4.5
2.5
2.5
2.5
7
1.2
2.5
2.5
1.6
4
2.5
2.5
3
3
1.5
1.5
4.3

190 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Passenger Protection, Airbags, Seat
BeltsTightening Specifications
Nm
9
2
35
15
45
30
2
23
6
10
6
10
9
10
8
1.2
2
33
9
9
8
8
10
6
10
35
35
45
45
9
35
34.5
9
9
8
3.5

Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 191

Body

Component
Airbag control module nut
Automatic belt retractor with driver seat belt tensioner
igniter 1 left front seat belt tensioner control module and
driver belt force limiter to pillar 1) 2)
Battery Interrupt Igniter to fuse panel A nut
Belt guide ring bolt 1)
Belt guide ring nut 1)
Belt height adjustment 4)
- Bolt
- Bolt 1)
Connector For driver side curtain airbag igniter bolt 3)
Driver front airbag crash sensor bolt
Driver side airbag crash sensor bolt
Driver side pedestrian protection crash sensor bolt
Front passenger airbags with front passenger airbag
igniter 1 / front passenger airbag drain valve igniter bolt 3)
Front passenger side pedestrian protection crash sensor
bolt
Front side airbag with driver thorax airbag igniter bolt 3) 5)
Driver seat position sensor bolt
Front seat belt guide to pillar nut 3)
Front seat belt latch with driver seat belt switch bolt 1)
Ground wire to glove compartment bolt 3)
Left retainer bolt 3)
Left retainer to driver side knee airbag nut 3)
Passenger side knee airbag to support nut 3)
Passenger front airbag crash sensor bolt
Passenger-side side airbag crash sensor bolt
Pedestrian protection center crash sensor bolt
Rear automatic belt retractor bolt 1)
Rear center automatic belt retractor nut 1)
Rear center belt anchor nut 3)
Rear seat belt latch nut 3)
Rear side airbag crash sensor (driver side) nut
Rear outer belt anchor bolt 1)
Rear outer belt latch (individual power rear seat) bolt 3)
Right retainer bolt 3)
Right rear side airbag crash sensor nut
Right retainer to driver side knee airbag nut 3)
Seat occupied recognition control module bolt

Passenger Protection, Airbags, Seat
BeltsTightening Specifications (cont'd)
Component
Side airbag in the rear with left rear thorax airbag igniter
bolt 3) 5)
Supports to glove compartment nut 3)
Rear center belt latch nut 3)
Threaded pin for rear center belt anchor (individual
power rear seat)
Threaded pin for rear center belt latch (individual power
rear seat)
1)
2)

3)
4)

5)

Nm
8
8
45
6
6

If it was removed because of an accident, replace the bolt/nut
For bolt tightening clarification, refer to ElsaWeb, Front Three-Point Seat Belt
Overview, items 1 and 3.
Always replace if removed.
For bolt tightening clarification, refer to ElsaWeb, Front Three-Point Seat Belt
Overview, items 9 and 11.
Install with locking compound

Interior Trim Tightening Specifications
Component
Air ducts to front door trim panel bolt
Bracket for glove compartment to central tube
Bracket for instrument panel cover to central tube bolt
Bracket glove compartment/A/C unit to central tube
Bracket to central tube bolt
Bracket to central tube threaded pin to nut
Left rear window shade motor bolt/nut
Pull handle/armrest to front door trim panel bolt
Pull handle/armrest to front door trim panel bolt
(passenger side)
Pull handle/armrest to rear door trim panel bolt
Rear window shade to rear door bolt
Trim with interior door mechanism to front door trim panel
1)

Top front defroster vent to instrument panel bolt
Top rear defroster vent to instrument panel bolt
Trim strip to upper cover bolt
Upper cover to instrument panel bolt
Passenger Compartment Trim
A-pillar upper trim to A-pillar bolt
D-pillar trim to D-pillar bolt
Front roof grab handle to A-pillar upper trim bolt
Front sill panel trim to floor bolt
Rear roof grab handle D-pillar bolt

Nm
1.2
3
3
3
20
20
3.3
1.2
2.8
1.2
3.3
1.2
2.8
3
3
3
3
4.5
3
4.5
4.5
4.5

192 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013

Component
Rear shelf to body bolt
Trim for the rear window shade guide to body bolt
Upper B-pillar trim to B-pillar nut
Luggage Compartment Trim Panel
Mount For vehicle jack to Spare wheel well trim bolt
Retaining hook to Upper luggage compartment trim
panel bolt
Tie-down eye bolt
Roof Trim
Sun visor to roof
1)

Nm
2
3
4.5
4.5
1.5
4.5
3.5

For bolt tightening clarification, refer to ElsaWeb, Rear Door Trim Overview, items 8
and 17.

Seat Frames Tightening Specifications

Driver seat height adjustment motor to frame bolt 1)
Driver seat lumbar support adjustment switch to sill-side
trim bolt
Driver seat switch module to Sill-side trim bolt
Front seat to bracket bolt
Mount to cover for connector station bolt
Retaining plate to lower seat pan frame bolt
Seat pan to driver seat height adjustment motor bolt 1)
Shaft through driver backrest adjustment motor nut 1)
Side bolster/sill-side trim bracket to front seat bolt
Standard seat to floor bolt
Trim on the tunnel-side to front seat bolt
Upper seat pan frame to lower seat frame with driver
seat forward/back adjustment motor bolt 1)
Front Seat - Reclining Seat
Backrest cover to bracket bolt
Backrest frame to front passenger footrest adjustment
motor bolt 1)

Nm
10
3.7
33
10
5
0.8
10
20
22
0.8
0.8
3.5
25
28
20
6
3.5
50
6.5
22

6.5
5

Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 193

Body

Component
Front Seat - Standard Seat
Bracket bolted with the seat pan bolt 1)
Bracket to backrest frame bolt 1)
Backrest to seat pan bolt 1)
Belt guide to seat pan bolt
Bushing to backrest frame bolt
Driver seat adjustment control head to sill-side trim bolt
Driver seat angle adjustment motor to seat pan bolt 1) 2)

Seat Frames Tightening Specifications (cont'd)
Component
Backrest frame to front passenger headrest adjustment
motor bolt/nut
Backrest frame to lumbar support bolt
Backrest to lower seat frame bolt 1)
Footrest to outer cover bolt
Front passenger headrest adjustment motor to Pressure
distribution plate bolt
Mount only in rear on the tunnel side to floor bolt
Pressure distribution plate to backrest frame bolt
Seat rail to support channels bolt
Support channels to floor bolt
Seat belt guide to lower seat frame bolt 1)
Front Seat - Multicontour Seat
Belt guide to seat pan bolt
Backrest to seat pan bolt 1)
Bracket to backrest cover bolt
Backrest cover to backrest bolt
Bracket to front seat bolt
Driver seat depth adjustment motor to front seat bolt
Headrest frame to Backrest Frame
- Bolt
- Nut
Mount for rear seat entertainment to front seat bolt
Mount to connector station bolt