NHTSA ID Number: 10214964
Manufacturer Communication Number: Audi
A8A8LS8 Qui
TSB/Document Date: 2022-07-05
Summary
Audi Quick Reference Specification Guide.
2014
A8/A8L
/S8
Quick Reference
Specification Book
2014 Audi A8/A8L/S8
Quick Reference Specification Book
Table of Contents
General Information....................................................... 1
Decimal and Metric Equivalents............................................1
Tightening Torque..................................................................2
Warnings and Cautions.........................................................4
Vehicle Identification...................................................... 9
Vehicle Identification Number (VIN) Location...........................9
VIN Decoder...........................................................................10
Vehicle Data Label.................................................................. 11
Sales Codes.................................................................. 12
Engine Codes.........................................................................12
Transmission Code.................................................................12
Vehicle Lifting............................................................... 12
Hoist and Floor Jack Lifting Points.........................................12
ENGINES
Engine Mechanical – 3.0L CPNA (TDI)........................ 13
General, Technical Data......................................................13
Engine Number Location .......................................................13
Engine Data............................................................................14
Engine Assembly – 3.0L CPNA (TDI)..................................14
Fastener Tightening Specifications.........................................14
Crankshaft, Cylinder Block – 3.0L CPNA............................15
Allocation of Crankshaft Bearing Shells for Guide Frame......15
Allocation of Crankshaft Bearing Shells for Cylinder Block....16
Fastener Tightening Specifications.........................................17
Guide Frame Tightening Specifications..................................18
Ribbed Belt Pulley Side Sealing Flange Tightening
Specifications...................................................................19
Crankshaft Dimensions..........................................................22
Piston Ring End Gaps............................................................22
Piston Ring Clearance............................................................22
Piston and Cylinder Dimensions.............................................22
Cylinder Head, Valvetrain – 3.0L CPNA..............................23
Fastener Tightening Specifications.........................................23
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
i
Compression Checking Specifications...................................23
Valve Dimensions...................................................................24
Upper Timing Chain Cover Tightening Specification..............25
Lower Timing Chain Cover Removing Sequence...................26
Lower Timing Chain Cover Tightening Specification..............27
Vehicles with Magnesium Upper Oil Pan................................30
Cylinder Head Tightening Specifications................................31
Left Cylinder Head Cover Tightening Specification................32
Right Cylinder Head Cover Tightening Specification..............33
Cylinder Bank 1 (Right) Bearing Cap Tightening
Specification.....................................................................34
Cylinder Bank 2 (Left) Bearing Cap Tightening
Specification.....................................................................35
Lubrication – 3.0L CPNA.....................................................36
Fastener Tightening Specifications.........................................36
Upper Oil Pan Tightening Specifications................................37
Oil Pan Tightening Specifications...........................................38
Oil Pump with Vacuum Pump Tightening Specification..........39
Cooling System – 3.0L CPNA..............................................40
Fastener Tightening Specifications.........................................40
Fuel Supply – 3.0L CPNA....................................................41
Fastener Tightening Specifications.........................................41
Locking Flange Cover Tightening Specification .....................42
Turbocharger, Supercharger – 3.0L CPNA..........................43
Fastener Tightening Specifications.........................................43
Turbocharger Tightening Specification ..................................44
Exhaust System, Emission Controls – 3.0L CPNA..............45
Fastener Tightening Specifications.........................................45
Exhaust Manifold Tightening Specifications...........................46
EGR Pipe at the Intake Manifold Tightening Specifications...47
EGR Pipe at the Turbocharger Tightening Specifications......48
Multiport Fuel Injection – 3.0L CPNA...................................49
Fastener Tightening Specifications.........................................49
Intake Manifold Tightening Specifications..............................50
Fuel Pressure Regulator Valve Tightening Specification........51
Fuel Pressure Sensor Tightening Specification......................52
Ignition System – 3.0L CPNA..............................................52
Ignition Tightening Specifications...........................................52
Engine Mechanical – 3.0L CGXC, CTUB..................... 53
General, Technical Data......................................................53
Engine Number Location .......................................................53
Engine Data............................................................................54
ii
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Engine Assembly – 3.0L CGXC, CTUB...............................55
Fastener Tightening Specifications.........................................55
Crankshaft, Cylinder Block – 3.0L CGXC, CTUB................56
Allocation of Crankshaft Bearing Shells for Guide Frame......56
Allocation of Crankshaft Bearing Shells for Cylinder Block....57
Guide Frame Tightening Specifications..................................58
Fastener Tightening Specifications.........................................59
Crankshaft Dimensions..........................................................60
Piston Ring End Gaps............................................................60
Piston Ring Clearance............................................................60
Piston and Cylinder Dimensions.............................................60
Cylinder Head, Valvetrain – 3.0L CGXC, CTUB..................61
Fastener Tightening Specifications.........................................61
Compression Checking Specifications...................................62
Valve Dimensions...................................................................62
Left Timing Chain Cover Tightening Specification..................63
Right Timing Chain Cover Tightening Specification................64
Lower Timing Chain Cover Tightening Specifications............65
Cylinder Head Tightening Specifications................................66
Camshaft Guide Frame Tightening Specifications.................67
Left Cylinder Head Cover Tightening Specification................68
Right Cylinder Head Cover Tightening Specification..............68
Lubrication – 3.0L CGXC, CTUB.........................................69
Fastener Tightening Specifications.........................................69
Upper Oil Pan Tightening Specifications................................70
Oil Pan Tightening Specifications...........................................71
Cooling System – 3.0L CGXC, CTUB.................................72
Fastener Tightening Specifications.........................................72
Fuel Supply – 3.0L CGXC, CTUB.......................................73
Fastener Tightening Specifications.........................................73
Turbocharger, G-Charger – 3.0L CGXC, CTUB..................73
Fastener Tightening Specifications.........................................73
Exhaust System, Emission Controls – 3.0L CGXC,
CTUB...................................................................................74
Fastener Tightening Specifications.........................................74
Left Exhaust Manifold Tightening Specifications....................75
Right Exhaust Manifold Tightening Specifications..................76
Multiport Fuel Injection – 3.0L CGXC, CTUB......................77
Technical Data........................................................................77
Fastener Tightening Specifications.........................................77
Control Valve Control Module Tightening Specification..........78
High Pressure Pump Tightening Specifications......................79
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
iii
Ignition System – 3.0L CGXC, CTUB..................................80
Ignition Tightening Specifications...........................................80
Technical Data........................................................................80
Engine Mechanical – 4.0L CEUA, CGTA..................... 81
General, Technical Data......................................................81
Engine Number Location .......................................................81
Engine Data............................................................................82
Engine Assembly – 4.0L CEUA, CGTA................................82
Fastener Tightening Specifications.........................................82
Crankshaft, Cylinder Block – 4.0L CEUA, CGTA.................83
Allocation of Crankshaft Bearing Shells for Cylinder
Block – New Crankshaft...................................................83
Allocation of Crankshaft Bearing Shells for Guide Frame......84
Allocation of Crankshaft Bearing Shells for Guide
Frame – Used and Reworked Crankshafts......................85
Fastener Tightening Specifications.........................................86
Spur Gear Unit Tightening Specifications...............................86
Vibration Damper Tightening Specifications...........................87
Baffle Plate Tightening Specifications....................................88
Guide Frame Tightening Specifications..................................89
Crankshaft Dimensions (Engine Code CEUA).......................90
Crankshaft Dimensions (Engine Code CGTA).......................90
Piston Ring End Gaps............................................................90
Piston Ring Clearance (Engine Code CEUA).........................90
Piston Ring Clearance (Engine Code CGTA).........................90
Piston and Cylinder Dimensions.............................................90
Cylinder Head, Valvetrain – 4.0L CEUA, CGTA...................91
Fastener Tightening Specifications.........................................91
Compression Checking Specifications...................................92
Valve Dimensions...................................................................92
Left Timing Chain Cover Tightening Specification..................93
Right Timing Chain Cover Tightening Specification................94
Lower Timing Chain Cover Tightening Specifications............95
Cylinder Head Tightening Specifications................................96
Camshaft Housing Tightening Specifications.........................97
Lubrication – 4.0L CEUA, CGTA..........................................98
Fastener Tightening Specifications.........................................98
Upper Oil Pan Tightening Specifications................................99
Oil Pan Tightening Specifications.........................................100
Front Engine Oil Cooler Tightening Specification.................101
Cooling System – 4.0L CEUA, CGTA................................102
Fastener Tightening Specifications.......................................102
iv
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Turbocharger – 4.0L CEUA, CGTA....................................103
Fastener Tightening Specifications.......................................103
Left Turbocharger Tightening Specification .........................104
Right Turbocharger Tightening Specification .......................105
Turbocharger Support Tightening Specification ...................106
Fuel Supply – 4.0L CEUA, CGTA......................................107
Fastener Tightening Specifications.......................................107
Locking Flange Cover Tightening Specification ...................108
Exhaust System, Emission Controls – 4.0L CEUA,
CGTA.................................................................................108
Fastener Tightening Specifications.......................................108
Multiport Fuel Injection – 4.0L CEUA, CGTA.....................109
Technical Data......................................................................109
Fastener Tightening Specifications.......................................109
Ignition System – 4.0L CEUA, CGTA................................. 110
Ignition Tightening Specifications......................................... 110
Technical Data...................................................................... 110
Engine Mechanical – 6.3L CEJA................................111
General, Technical Data.................................................... 111
Engine Number Location...................................................... 111
Engine Data.......................................................................... 112
Engine Assembly – 6.3L CEJA.......................................... 112
Fastener Tightening Specifications....................................... 112
Locking Flange Cover Tightening Specification ................... 113
Crankshaft, Cylinder Block – 6.3L CEJA........................... 114
Fastener Tightening Specifications....................................... 114
Cylinder Head, Valvetrain – 6.3L CEJA............................. 114
Fastener Tightening Specifications....................................... 114
Compression Checking Specifications................................. 115
Valve Dimensions................................................................. 116
Left Timing Chain Cover Tightening Specifications.............. 117
Right Timing Chain Cover Tightening Specifications............ 118
Lower Timing Chain Cover Tightening Specifications.......... 119
Left Cylinder Head Tightening Specifications.......................120
Right Cylinder Head Tightening Specifications.....................121
Cylinder Bank 1 (Right) Bearing Cap Tightening
Specifications.................................................................122
Cylinder Bank 2 (Left) Bearing Cap Tightening
Specifications.................................................................124
Left Cylinder Head Cover Tightening Specifications............126
Right Cylinder Head Cover Tightening Specifications..........127
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
v
Lubrication – 6.3L CEJA....................................................128
Fastener Tightening Specifications.......................................128
Upper Oil Pan Tightening Specifications..............................129
Oil Pan Tightening Specifications.........................................130
Cooling System – 6.3L CEJA............................................131
Fastener Tightening Specifications.......................................131
Fuel Supply – 6.3L CEJA...................................................132
Fastener Tightening Specifications.......................................132
Locking Flange Cover Tightening Specification....................132
Exhaust System, Emission Controls – 6.3L CEJA.............133
Fastener Tightening Specifications.......................................133
Left Exhaust Manifold Tightening Specifications..................134
Right Exhaust Manifold Tightening Specifications................135
Multiport Fuel Injection – 6.3L CEJA.................................136
Technical Data......................................................................136
Fastener Tightening Specifications.......................................136
Ignition System Tightening Specifications............................137
Technical Data......................................................................137
TRANSMISSIONS
Automatic Transmission – 0BK................................ 138
General, Technical Data....................................................138
Transmission Identification...................................................138
Transmission Type Plate......................................................139
Code Letters, Transmission Allocations, Ratios and
Equipment......................................................................140
Controls, Housing – 0BK...................................................142
Securing Transmission to 3.0L TDI Engine..........................142
Securing Transmission to 3.0L TFSI Engine........................143
Securing Transmission to 4.0L Engine.................................144
Securing Transmission to 6.3L Engine.................................145
Fastener Tightening Specifications.......................................146
Selector Lever Sensor System Control Module Tightening
Specifications.................................................................148
Drain and Fill Plugs Tightening Specifications......................149
Gears, Hydraulic Controls – 0BK.......................................150
Fastener Tightening Specification........................................150
Oil Pan Tightening Specifications.........................................150
Mechatronic Tightening Specification without Hydraulic Pulse
Memory..........................................................................151
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Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Mechatronic Tightening Specifications with Hydraulic Pulse
Memory..........................................................................152
Hydraulic Pulse Memory Tightening Specifications..............153
Rear Final Drive, Differential – 0BK...................................154
Fastener Tightening Specifications.......................................154
Front Final Drive Cover Tightening Specifications................154
Center Differential Housing Tightening Specifications..........155
Rear Final Drive – 0BC, 0BD, 0BE, 0BF.................... 156
General, Technical Data – 0BC.........................................156
Rear Final Drive Identification..............................................156
Final Drive Identification.......................................................157
Rear Final Drive Code and Date of Manufacture.................159
General, Technical Data – 0BD.........................................160
Rear Final Drive Identification..............................................160
Example................................................................................161
General, Technical Data – 0BE, 0BF.................................162
Rear Final Drive Identification..............................................162
Example................................................................................163
Rear Final Drive Transmission Allocations, Ratios, Capacities..
163
Fastener Tightening Specifications.......................................164
Driveshaft to Rear Final Drive Tightening Specification.......166
CHASSIS
Suspension, Wheels, Steering.................................. 167
General, Technical Data....................................................167
Chassis.................................................................................167
Steering................................................................................167
Front Suspension..............................................................168
Fastener Tightening Specifications.......................................168
Rear Suspension...............................................................170
Fastener Tightening Specifications.......................................170
Self-Leveling Suspension..................................................171
Fastener Tightening Specifications.......................................171
Wheels, Tires.....................................................................172
Fastener Tightening Specifications.......................................172
Wheel Alignment Data.......................................................172
Wheel Alignment Specified Values.......................................172
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
vii
Steering.............................................................................174
Fastener Tightening Specifications.......................................174
Pressure Line from the Power Steering Pump to the
Power Steering Gear (8-Cylinder)..................................176
Pressure Line from the Power Steering Pump to the
Power Steering Gear (12-Cylinder) ...............................177
Brake System.............................................................. 178
General, Technical Data....................................................178
Vehicle Data Label................................................................178
Technical Data......................................................................179
Anti-lock Brake System (ABS)...........................................180
Fastener Tightening Specifications.......................................180
Mechanical Components...................................................180
Fastener Tightening Specifications.......................................180
Hydraulic Components......................................................181
Hydraulic Tightening Specifications......................................181
Body............................................................................. 182
Air Gap Body Dimensions – Coupe...................................182
Front Gap Dimensions..........................................................182
Rear Gap Dimensions..........................................................183
Body Exterior.....................................................................184
Body Front Tightening Specifications...................................184
Hood, Lids Tightening Specifications....................................184
Front Doors, Central Locking System Tightening
Specifications.................................................................185
Rear Doors Tightening Specifications..................................186
Sunroof Tightening Specifications........................................186
Assembly Frame to Roof Tightening Sequence...................187
Bumpers Tightening Specifications......................................188
Glass, Window Regulators Tightening Specifications..........188
Exterior Equipment Tightening Specifications......................188
Assembly Frame to Roof Tightening Sequence...................189
Body Interior......................................................................190
Interior Equipment Tightening Specifications.......................190
Passenger Protection, Airbags, Seat BeltsTightening
Specifications.................................................................191
Interior Trim Tightening Specifications..................................192
Seat Frames Tightening Specifications................................193
Camper Cabinets, Shelves, Water Tank Tightening
Specifications.................................................................195
viii
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Heating, Ventilation & Air Conditioning................... 196
General, Technical Data....................................................196
Refrigerant Oil Distribution...................................................196
Refrigerant R134a Vapor Pressure Table.............................197
Air Conditioning.................................................................198
Fastener Tightening Specifications.......................................198
Electrical System........................................................ 199
Communication Equipment...............................................199
Communication Tightening Specifications............................199
Electrical Equipment..........................................................200
Battery, Starter, Generator, Cruise Control Tightening
Specifications.................................................................200
Instruments Tightening Specifications..................................200
Windshield Wiper/Washer Tightening Specifications............200
Windshield Wiper Motor Tightening Sequence.....................201
Exterior Lights, Switches Tightening Specifications.............201
Housing Cover With Power Output Stage 1 for Led
Headlamps Tightening Sequence..................................202
Housing Cover Tightening Sequence...................................203
Headlamp Fan - Tightening Tightening Sequence...............204
Interior Lights, Switches Tightening Specifications...............204
Wiring Tightening Specifications...........................................205
Fuse Panel Tightening Specifications...................................206
Fuse Panel D Tightening Specifications...............................207
Fuse Panel F Tightening Specifications...............................208
DTC Chart.................................................................... 209
Engine Codes - 3.0L CTUB...............................................209
Fuel and Air Mixture,
Additional Emissions Regulations..................................209
Ignition System.....................................................................222
Additional Exhaust Regulation..............................................225
Speed and Idle Control.........................................................226
Control Module and Output Signals......................................227
Transmission........................................................................230
Fuel and Air Ratios Control Module......................................234
Additional Emissions Regulations........................................238
DTC Chart.................................................................... 239
Engine Codes - 4.0L CEUA, CGTA...................................239
Fuel and Air Mixture,
Additional Emissions Regulations..................................239
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
ix
Ignition System.....................................................................258
Additional Exhaust Regulation..............................................262
Speed and Idle Control.........................................................267
Control Module and Output Signals......................................268
Fuel and Air Ratios Control Module......................................271
Ignition System.....................................................................280
Additional Emissions Regulations........................................282
DTC Chart.................................................................... 285
Engine Codes - 6.3L CEJA................................................285
Fuel and Air Mixture,
Additional Emissions Regulations..................................285
Ignition System.....................................................................307
Additional Exhaust Regulation.............................................. 311
Speed and Idle Control.........................................................313
Control Module and Output Signals......................................315
Transmission........................................................................318
Fuel and Air Ratios Control Module......................................322
Ignition System.....................................................................333
Additional Emissions Regulations........................................334
DTC Chart.................................................................... 336
Engine Codes - 3.0L TDI CPNA........................................336
Fuel and Air Mixture,
Additional Emissions Regulations..................................336
Ignition System.....................................................................349
Additional Exhaust Regulation..............................................351
Speed and Idle Control.........................................................352
Control Module and Output Signals......................................353
Fuel and Air Ratios Control Module......................................358
Additional Emissions Regulations........................................362
x
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
General Information
General
Information
Decimal and Metric Equivalents
Distance/Length
To calculate: mm x 0.03937 = in.
mm
0.002
0.004
0.006
0.008
0.010
0.020
0.030
0.040
0.050
0.060
0.070
0.080
0.090
0.100
0.200
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TSB/Document ID: Audi A8A8LS8 Qui
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