Audi 8 Speed Transmission 0BK AWD 2010

Audi 8 Speed Transmission

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Audi 8 Speed Transmission Workshop Manual Contents

00 – General, Technical Data   . . . . . . . . . . . . . . . . . . . . . . 1
1 Identification  . . . . . . . . . . . . …………………………. . . . . 1
1.1 Transmission Identification  . . . . . . . . . . . . . . . . . . . . . 1
2 Safety Precautions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 Vehicle Safety Precautions  . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Start/Stop System Safety Precautions  . . . . . . . . . . . . . . 3
2.3 Road Test with Testing Equipment Safety Precautions . .. . 3
2.4 Subframe Safety Precautions . . . . . . . . . . . . . . . . . . . . . 3
2.5 Towing Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Clean Working Conditions, Guidelines . . . . .  . . . . . . . . . . 5
3.2 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.3 General Repair Information . . . . . . . . . . . . . . . . . . . . . . . 6
3.4 Contact Corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

POWERTRAIN

4.2 Oil Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Overview – Powertrain . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1 Overview – Powertrain AWD . . . . . . . . . . . . . . . . . . . . . . . 12
32 – Torque Converter . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 13
1 Torque Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2 Special Tools . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 14
37 – Controls, Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1 Selector Mechanism . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 15
1.1 Overview – Selector Mechanism . . . . . . . . . . . . . . . . . . . . . 15
1.2 Overview – Selector Lever Handle . . . . . . . . . . . . . . . . . . . . 18
1.3 Overview – Selector Lever Cable . . . . . . . . . . . . . . . . . . . . . 20
1.4 Gearshift Mechanism, Checking . . . . . . . . .  . . . . . . . . . . . . 21
1.5 Emergency Release from P . . . . . . . . . . . .  . . . . . . . . . . . . 24
1.6 Selector Mechanism, Removing and Installing. . . . . . . . . . . . 25
1.7 Selector Mechanism, Disassembling and Assembling . . . . . . . 30
1.8 Selector Lever Handle, Removing and Installing . . . . .. . . . . . 34
1.9 Selector Lever Transmission Range Position Display Unit Y26 , Removing and Installing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
1.10 Selector Lever Cable, Removing and Installing . . . . . . . . . . . 43
1.11 Selector Lever Cable, Checking and Adjusting . . . . . .. . . . . . 47
1.12 Selector Lever Cable, Bringing into Basic Setting . . . .. . . . . . 48
1.13 Selector Shaft Seal, Replace . . . . . . . . . . . . . . . . . .  . . . . . . 52
2 Transmission, Removing and Installing . . . . . . . . . . . . .  . . . . . . 55
2.1 Transmission, Removing . . . . . . . . . . . . . . . . . . . . . .  . . . . . . 55
2.2 Transmission, Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
2.3 Transmission Tightening Specifications . . . . . . . . . . . .. . . . . . . 102
3 Subframe Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . 104
3.1 Overview – Subframe Mount . . . . . . . . . . . . . . . . . . . .. . . . . . 104
3.2 Tunnel Crossmember, Removing and Installing . . . . . . .. . . . . . 105
3.3 Transmission Support with Transmission Mount, Removing and Installing .  106
3.4 Transmission Mount, Removing and Installing . . . . . . . . .. . . . . 106
4 Transmission, Transporting . . . . . . . . . . . . . . . . . . .  . . . . . . . . . 108
5 Securing on Engine and Transmission Holder . . . . . . . . . . . . . . . . 109

Audi 8 speed transmission fluid change

6 Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
6.1 Overview – Transmission Drain and Inspection Plug . . . . . . . . . . 110
6.2 ATF Level, Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
6.3 ATF, Draining and Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
7 ATF Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
7.1 Overview – ATF Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
7.2 ATF Cooler, Removing and Installing, Vehicles with 3.0L TDI Biturbo Engine . .. 122
7.3 ATF Filter, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . 125
7.4 Automatic Transmission Fluid Lines, Cleaning . . . . . . . . . . . . . . . 126
7.5 ATF Pipes, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . 127
8 Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . 133
38 – Gears, Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . 140
1 ATF System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . 140
1.1 Transmission Fluid Pan, Removing and Installing . . . . . . . . . . . . . 140
2 Mechatronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 144
3 Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
39 – Final Drive, Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

1 Final Drive

1.1 Overview – Final Drive . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . 146
1.2 Front Final Drive Cover O-ring, Removing and Installing . . . . . . . . . 148
2 Gear Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 150
2.1 Overview – Drain and Inspection Plugs for Gear Oil . . . . . . . . . . . . . 150
2.2 Separate or Combined Oil Systems, Differentiation . . . . . . . . . . . . . 151
2.3 Gear Oil, Checking Level . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 151
2.4 Gear Oil, Draining and Filling . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 158
3 Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
3.1 Left Seal, Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
3.2 Right Seal, Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . 170
4 Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
4.1 Left Flange Shaft, Removing and Installing . . . . . . . . . . . . .. . . . . . . 172
4.2 Right Flange Shaft, Removing and Installing . . . . . . . . . . . .. . . . . . . 173
5 Self-Locking Center Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
5.1 Center Differential, Removing and Installing . . . . . . . . . . . . . . . . . . . 176
6 Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
7 Transmission Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
7.1 Overview – Component Location Transmission Control . . . . .. . . . . . . 181
8 Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
9 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

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