Audi Q7 2007 Operating instructions

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Repair Manual
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8
Engine ID CAT
A
CJW
C
CJW
B
CJW
E
CTW
A
CNR
B
CTW
B
Edition 08.2017
Service
Service Department. Technical Information

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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
List of Workshop Manual Repair Groups
Repair Group
00 - General, Technical Data
32 - Torque Converter
37 - Controls, Housing
38 - Gears, Hydraulic Controls
Technical information should always be available to the foremen and mechanics, because their
careful and constant adherence to the instructions is essential to ensure vehicle road-worthiness and
safety. In addition, the normal basic safety precautions for working on motor vehicles must, as a
matter of course, be observed.
Service
All rights reserved.
No reproduction without prior agreement from publisher.
Copyright © 2017 Audi AG, Ingolstadt D3E802DCC75

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Contents
00 - General, Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1 Transmission Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 8-Speed Automatic Transmission 0C8, General Information . . . . . . . . . . . . . . . . . . . . . . . . 2
3 Overview - Powertrain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4 Code Letters, Transmission Allocations, Ratios and Equipment . . . . . . . . . . . . . . . . . . . . 4
5 Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.1 When Working on Automatic Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.2 Working On Vehicles with Start/Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.3 For Test Drives with the Use of Test and Measuring Devices . . . . . . . . . . . . . . . . . . . . . . 7
7 Towing Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8 Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8.1 Contact Corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8.2 General Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8.3 Transmission, Clean Working Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.4 Transmission Adaptation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
32 - Torque Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1 Torque Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.1 Overview - Torque Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.2 Torque Converter, Draining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.3 Torque Converter Shaft Seal, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.4 Torque Converter, Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.5 Torque Converter, Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2 Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
37 - Controls, Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1 Electrical and Electronic Components and Component Locations . . . . . . . . . . . . . . . . . . . . 20
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.2 Transmission Control Module J217 , Removing and Installing . . . . . . . . . . . . . . . . . . . . . . 23
1.3 Auxiliary Hydraulic Pump Control Module J922 , Removing and Installing . . . . . . . . . . . . 25
2 Selector Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.1 Overview - Selector Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.2 Gearshift Mechanism, Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.3 Selector Mechanism, Performing Emergency Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3 Selector Lever Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.1 Overview - Selector Lever Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.2 Selector Lever Handle, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.3 Selector Lever Boot, Removing from Selector Lever Handle . . . . . . . . . . . . . . . . . . . . . . . . 38
3.4 Selector Lever Transmission Range Position Display Unit Y26 , Removing and Installing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.5 Selector Lever Sensor System Control Module J587 with Tiptronic Switch F189 , Removing
and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4 Selector Mechanism Function Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.1 Overview - Selector Mechanism Function Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.2 Shift Mechanism Function Unit, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.3 Selector Mechanism Function Unit Lower Section, Removing and Installing . . . . . . . . . . 46
4.4 Shift Gate, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.5 Selector Lever “P” Position Locking Lever, Removing and Installing . . . . . . . . . . . . . . . . . . 52
4.6 Shift Lock Solenoid N110 , Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.7 Transmission Park Selector Switch F305 , Removing and Installing . . . . . . . . . . . . . . . . . . 57
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
Contents i

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5 Selector Lever Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.1 Overview - Selector Lever Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.2 Selector Lever Cable, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.3 Selector Lever Cable, Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6 Transmission, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.1 Transmission, Removing, Vehicles with 6-Cylinder 3.0L TFSI Engine . . . . . . . . . . . . . . . . 67
6.2 Transmission, Removing, Vehicles with 6-Cylinder 3.0L TDI Engine . . . . . . . . . . . . . . . . 72
6.3 Transmission, Installing, Vehicles with 6-Cylinder Engines . . . . . . . . . . . . . . . . . . . . . . . . 78
6.4 Transmission, Removing and Installing, Vehicles with 8-Cylinder 4.2L TDI Engine . . . . . . 81
7 Transmission, Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
8 ATF Level Inside Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
8.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
8.2 ATF Level, Checking and Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
8.3 ATF, Draining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
8.4 Filling ATF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
9 ATF Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
9.1 ATF Pipes, ATF Cooler and ATF Pre-Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
9.2 ATF Preheater, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
9.3 ATF Pipes and ATF Cooler, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
9.4 ATF Pipes for ATF Cooler with Clamping Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
9.5 ATF Pipes and ATF Cooler, Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
10 Input Shaft Seal, Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
11 Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
38 - Gears, Hydraulic Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
1 Oil Pan, Oil Screen and Valve Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
1.1 ATF Pan, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
1.2 Oil Screen, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
1.3 Valve Body, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
1.4 Transmission Output Speed Sensor G195 , Removing and Installing . . . . . . . . . . . . . . . . 120
1.5 Transmission Fluid Auxiliary Hydraulic Pump 2 V476 , Removing and Installing, Vehicles with
Start/Stop System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
2 Selector Lever and Multifunction Transmission Range Switch F125 . . . . . . . . . . . . . . . . 122
2.1 Overview - Selector Lever, Multifunction Transmission Range Switch F125 . . . . . . . . . . 122
2.2 Multifunction Transmission Range Switch F125 , Removing, Installing and Adjusting . . . . 123
2.3 Selector Lever, Removing and Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
2.4 Selector Shaft Seal, Removing and Installing, Left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
2.5 Selector Shaft Seal, Removing and Installing, Left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
3 Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
4 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
ii Contents

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00 – General, Technical Data
1 Transmission Identification
(Edition 08.2017)
The “8-speed automatic transmission 0C8, AWD” is installed in
the Audi Q7 from MY 2007. Allocation. Refer to
⇒ “4 Code Letters, Transmission Allocations, Ratios and Equip‐
ment”, page 4 .
Transmission code letters are located on the type plate on the left
side of the transmission at the bottom.
Note
The transmission code letters are also included on the vehicle
data labels.
Example:
1 - Manufacturer Serial Number
2 - Part Number
3 - Manufacturer Type Number
4 - Production Date
5 - Transmission Code
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
1. Transmission Identification 1

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with respect to the correctness of information in this document. Copyright by AUDI AG.
2 8-Speed Automatic Transmission
0C8, General Information
Refer to 8-Speed Automatic Transmission 0C8 Self Study Pro‐
gram.
For more information. Refer to the training CDs. Refer to the Parts
Catalog.
Transmission Control Module - J217-
The Transmission Control Module - J217- is under the right front
seat. Refer to
⇒ “1.2 Transmission Control Module J217 , Removing and In‐
stalling”, page 23 .
Shift Point Changes on Inclines and Declines
An additional gear change map automatically selects the gear
changes for gradients dependent upon accelerator pedal position
and driving speed.
♦ The gear change map for extreme uphill stretches is matched
to engine output.
♦ The gear change map for extreme downhill stretches is match‐
ed to the braking effect of the engine.
♦ Direct gear selection by way of the Tiptronic function permits
utilization of engine braking action with a specific gear engag‐
ed, for example, on a downhill gradient with a trailer.
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
2 Rep. Gr.00 - General, Technical Data

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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
3 Overview - Powertrain
1 - 8-Speed Automatic Trans‐
mission 0C8
❑ Removing and instal‐
ling. Refer to
⇒ “6 Transmission, Re‐
moving and Installing”,
page 67 .
2 - Transfer Case
❑ Removing and instal‐
ling. Refer to ⇒ Transfer
Case 0BU, Front Final
Drive 0BM, 0C1 and
0BN, Rear Final Drive
0BP; Rep. Gr. 39 .
3 - Rear Driveshaft
❑ Removing and instal‐
ling. Refer to ⇒ Transfer
Case 0BU, Front Final
Drive 0BM, 0C1 and
0BN, Rear Final Drive
0BP; Rep. Gr. 39 .
4 - Rear Final Drive
❑ Removing and instal‐
ling. Refer to ⇒ Transfer
Case 0BU, Front Final
Drive 0BM, 0C1 and
0BN, Rear Final Drive
0BP; Rep. Gr. 39 .
5 - Front Driveshaft
❑ Removing and instal‐
ling. Refer to ⇒ Transfer
Case 0BU, Front Final
Drive 0BM, 0C1 and
0BN, Rear Final Drive
0BP; Rep. Gr. 39 .
6 - Front Final Drive
❑ Removing and installing. Refer to ⇒ Transfer Case 0BU, Front Final Drive 0BM, 0C1 and 0BN, Rear
Final Drive 0BP; Rep. Gr. 39 .
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
3. Overview - Powertrain 3

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with respect to the correctness of information in this document. Copyright by AUDI AG.
4 Code Letters, Transmission Allocations, Ratios and Equipment
8-Speed Automatic Transmission 0C8
Transmission Code letters LSG
NAE
MHC
MHP
NAB
NAC
MHN
Allocation Type Audi Q7 from
MY 07
Audi Q7 from
MY 07
Audi Q7 from
MY 07
Engine 4.2L - TDI
250 kW
3.0L - TDI
150 kW,
165 kW, 176 kW
and 180 kW
3.0L - TFSI
200 kW and
245 kW
1st Gear 4.919 4.970 4.845
2nd Gear 2.811 2.840 2.840
3rd Gear 1.844 1.864 1.864
4th Gear 1.429 1.437 1.437
5th Gear 1.207 1.210 1.217
6th Gear 1.000 1.000 1.000
7th Gear 0.827 0.825 0.816
8th Gear 0.686 0.686 0.672
Reverse gear 4.024 4.066 3.825
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
4 Rep. Gr.00 - General, Technical Data

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5 Capacities
8-Speed Automatic Transmission 0C8 Capacities
Transmission initial filling for engine type: V6 3.0L -
TFSI
Refer to ⇒ Fluid Capacity Tables; Rep. Gr. 03
Transmission initial filling for engine type: V6 3.0L - TDI Refer to ⇒ Fluid Capacity Tables; Rep. Gr. 03
Transmission initial filling for engine type: V8 4.2L - TDI Refer to ⇒ Fluid Capacity Tables; Rep. Gr. 03
ATF cooling system Refer to ⇒ Fluid Capacity Tables; Rep. Gr. 03
ATF change ♦ No ATF change
♦ Permanent fill
Changing only after repair, for example, when remov‐
ing the ATF pan. Refer to ⇒ Fluid Capacity Tables;
Rep. Gr. 03
Lubricant ATF
Refer to the Parts Catalog .
Caution
Using the incorrect ATF will result in malfunctions or transmis‐
sion failure.
♦ Only ATF available as a replacement part for the 8-speed
automatic transmission 0C8 may be used in the planetary
gear. Refer to the Parts Catalog.
– Refer to ⇒ “8 ATF Level Inside Transmission”, page 84 .
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
5. Capacities 5

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with respect to the correctness of information in this document. Copyright by AUDI AG.
6 Safety Precautions
⇒ “6.1 When Working on Automatic Transmission”, page 6
⇒ “6.2 Working On Vehicles with Start/Stop”, page 6
⇒ “6.3 For Test Drives with the Use of Test and Measuring Devi‐
ces”, page 7
6.1 When Working on Automatic Transmis‐
sion
Observe the Following to Avoid Personal Injury and Vehicle Dam‐
age:
WARNING
There is a risk of injury and accident from accidentally engag‐
ing a gear when the engine is running.
♦ Before working with the engine running, move the selector
lever to “P” and set the parking brake.
To Prevent Personal Injury and Damage to Electrical and Elec‐
tronic Components, Observe the Following:
♦ Connect and disconnect test equipment only when the ignition
is off.
Caution
Risk of damaging electronic components when disconnecting
the battery.
♦ Complete the steps for disconnecting the battery.
♦ Always turn off the ignition before disconnecting the bat‐
tery.
– Disconnect the battery. Refer to ⇒ Electrical Equipment; Rep.
Gr. 27 ; Battery .
6.2 Working On Vehicles with Start/Stop
When Working on Vehicles With Start/Stop, Note the Following:
WARNING
Danger of injury through automatic motor starting with vehicles
with the Start/Stop System.
♦ For vehicles with an activated Start/Stop System (recog‐
nizable from a notification in the instrument cluster), the
motor can be started automatically if needed.
♦ Thus, make sure that the Start/Stop System is disabled
when working on the vehicle (turn off ignition, if needed,
turn the ignition back on).
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
6 Rep. Gr.00 - General, Technical Data

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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
6.3 For Test Drives with the Use of Test and
Measuring Devices
If testing equipment must be used during a road test, observe the
following:
WARNING
Distraction and testing equipment that is not secured properly
can cause accidents.
The passenger airbag could pose a risk if it deploys in a colli‐
sion.
• Operating testing equipment while driving causes it to shift
position.
• There is an increased risk of injury due to unsecured test‐
ing equipment.
♦ Always secure testing and measuring tools to the rear seat
with a belt and have a 2nd person assist when working
with said tools.
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
6. Safety Precautions 7

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7 Towing Notes
Caution
Danger of causing damage to the transmission.
♦ The selector lever must be in “N” when towing the vehicle.
Do not tow the vehicle further than 50 km (31 miles) and
do not drive faster than 50 km/h (31 mph).
Note
“Tow-starting” the engine, for example when the battery is too
weak or the starter is faulty, is not possible.
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
8 Rep. Gr.00 - General, Technical Data

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8 Repair Information
⇒ “8.1 Contact Corrosion”, page 9
⇒ “8.2 General Repair Information”, page 9
⇒ “8.3 Transmission, Clean Working Conditions”, page 12
⇒ “8.4 Transmission Adaptation”, page 12
8.1 Contact Corrosion
Contact corrosion can occur if non-approved fasteners are used
such as bolts, nuts, washers, etc.
For this reason, only fasteners with a special surface coating may
be installed.
In addition, rubber or plastic parts and adhesive are made of ma‐
terials that do not conduct electricity.
If you are not sure about the suitability of parts, install new parts.
Refer to the Parts Catalog.
Note
♦ We recommend using original replacement parts only. They
have been inspected and are compatible with aluminum.
♦ It is recommended to use Audi accessories.
♦ Damage resulting from contact corrosion is not covered by the
warranty.
8.2 General Repair Information
Carefulness, cleanliness and the correct tools are required for
transmission repairs to be successful. The usual basic safety pre‐
cautions also, naturally apply when carrying out vehicle repairs.
Some general repair information that applies to several proce‐
dures throughout this manual is summarized here. They apply to
this repair manual.
Guided Fault Finding, OBD and Test Instruments
♦ Determine the cause of the malfunction as accurately as pos‐
sible using Guided Fault Finding, OBD and Test Instru-
ments before starting any repairs on the automatic transmis‐
sion -Vehicle Diagnostic Tester- .
Oil, Environmental and Disposal Regulations
♦ Handle ATF, axle oil and other fluids with care.
♦ Dispose of drained ATF properly.
♦ Follow the legal environmental and disposal regulations.
♦ Follow the information provided on oil packaging.
Special Tools and Equipment
For a complete list of special tools used in the Repair Manual.
Refer to the Parts Catalog.
Selector Mechanism Emergency Release
If the battery has been disconnected or is discharged and the ve‐
hicle must be towed or pushed, it will be necessary to push the
shift mechanism emergency release to shift the selector lever
from “P” to “N”. Refer to
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
8. Repair Information 9

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with respect to the correctness of information in this document. Copyright by AUDI AG.
⇒ “2.3 Selector Mechanism, Performing Emergency Release”,
page 29 .
Transmission
♦ Clean working conditions for the automatic transmission. Re‐
fer to
⇒ “8.3 Transmission, Clean Working Conditions”, page 12 .
♦ Do not let the engine run or tow the vehicle when the oil pan
is removed or when there is no ATF in the transmission.
♦ With the transmission removed, secure the torque converter
so that it cannot fall out.
♦ Check installation dimension of torque converter before in‐
stalling transmission. Refer to ⇒ , page 18 .
♦ When installing the transmission, make sure that the align‐
ment bushings are fitted correctly.
♦ When exchanging automatic transmission or components, all
fluid levels should be checked and corrected, if necessary.
Likewise, all lines must be cleaned. Capacities. Refer to
⇒ “5 Capacities”, page 5 . Specifications. Refer to the Parts
Catalog.
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
10 Rep. Gr.00 - General, Technical Data

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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Shaft Seals, Sealing Rings, O-Rings, Seals
♦ O-rings, shaft seals and seals must be replaced.
♦ After removing gaskets, examine contact surface on housing/
shaft for burr resulting from removal or for other signs of dam‐
age.
♦ Before installing radial shaft seal, fill space between sealing
lips -arrow- halfway with Grease - G 052 128 A1- .
♦ The open side of the seals point toward the fluid to be sealed
in.
♦ Before installing, lightly lubricate shaft seal outer circumfer‐
ence and sealing lips with ATF or gear oil, depending on
installation location.
♦ Coat O-rings with ATF before inserting to prevent crushing
rings during installation.
♦ Always only use approved ATF. Other types of lubrication
cause faults to occur in the transmission hydraulics.
♦ Press in new shaft seal, so that the sealing lip does not run on
the same point as the sealing lip of the old shaft seal (use
insertion depth tolerances).
♦ Replace paper gaskets, thoroughly clean sealing surfaces and
completely remove old seals.
♦ After installing, check the relevant fluid levels and fill if neces‐
sary. Capacities. Refer to ⇒ “5 Capacities”, page 5 . Specifi‐
cations. Refer to the Parts Catalog.
Bolts and Nuts
♦ Loosen bolts in opposite of tightening sequence if another se‐
quence is not specified.
♦ Nuts and bolts which secure covers and housings should be
loosened and tightened crosswise in stages if no tightening
sequence is specified.
♦ The tightening specifications stated apply to non-oiled nuts
and bolts.
♦ Always replace self-locking nuts and bolts.
♦ Use a wire brush to clean the threads of bolts that were
screwed in with locking compound. Install the bolts with Lock‐
ing Fluid - AMV 185 101 A1- .
♦ Threaded holes with self-locking bolts or bolts coated with
locking fluid must be cleaned, for example using a thread tap.
Otherwise there is a risk that the bolts will shear the next time
they are removed.
Circlips
♦ Do not overstretch the circlips.
♦ Always replace damaged or stretched circlips.
♦ The circlips must fit completely inside the groove.
Bearings
♦ Insert bearing with axle oil or ATF, depending on installation
location.
♦ Replace the transmission if any of the shift elements are
scorched.
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
8. Repair Information 11

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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Control Modules, Electronic Components and Contacts
♦ Only touch electrical components after discharging static elec‐
tricity on a grounded object, for example by touching (skin
contact) vehicle or vehicle lift.
♦ Connector contacts in electric connectors, control modules
and electrical components must not be touched with the hands
under any circumstances. They can be destroyed by static
discharge.
8.3 Transmission, Clean Working Condi‐
tions
♦ Always clean connection places and surrounding areas with
engine or brake cleaner before loosening and dry cleaned pla‐
ces.
♦ Clean the transmission and transmission components using
Cleaning Solution - D 009 401 04- .
♦ Use lint-free cloths when cleaning, for example, the “WYPALL
X70/WORKHORSE” cloth made by Kimberly-Clark Professio‐
nal.
♦ Seal all open lines and connections immediately with clean
plugs or caps from the Engine Bung Set - VAS6122-
♦ Place removed parts on a clean surface and cover. Only use
lint-free cloths for this!
♦ Carefully cover or plug unpacked components if repairs can‐
not be performed immediately.
♦ Only install clean components: Install replacement parts im‐
mediately after removing them from their packaging.
♦ Protect the disconnected connectors from dirt and moisture
and only connect when they are dry.
8.4 Transmission Adaptation
In addition to the construction, the deciding factor for good and
constant shift quality is the precise control of the shifting ele‐
ments. To maintain a consistent shift quality throughout the entire
transmission service life, various control and regulation parame‐
ters must be adapted continuously and the determined adaptation
values must be stored. These adaptations or this programming
process are called adaptation.
The goal of a transmission adaptation is to compensate for pro‐
duction tolerances of the transmission components and their
changes throughout the service life. The adaptation values act as
corrective values or offsets which are added to or subtracted from
the values (applied values) stored permanently in the transmis‐
sion control module.
When should the adaptation values be read, evaluated or erased
and when should an adaptation drive be performed?
♦ If the customer indicates there is rough or hard shifting be‐
havior.
♦ After replacing the ATF.
♦ After repairing the clutches.
♦ After replacing the valve body
♦ After replacing the Transmission Control Module - J217-
♦ After replacing the transmission
♦ After a software update.
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
12 Rep. Gr.00 - General, Technical Data

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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
♦ After certain engine repairs such as replacing the mass airflow
sensor.
– Follow all information, procedures and requirements given in
“Guided Functions” exactly.
– -Vehicle Diagnostic Tester- is connected, then select and per‐
form 02 - Transmission Electronics 0C8 I J217 and
then J217 - Transmission Control Module, Adaptation
Drive (Repair Group 38) using Guided Functions.
Note
After erasing the adaptation values, perform an adaptation drive
using "Guided Functions or Fault Finding". If the adaptation drive
cannot be performed for various reason, complete an extensive
test drive. Be sure to keep to the adaptation conditions as much
as possible.
General Adaptation Conditions
The adaptation can only take place when the appropriate defined
adaptation conditions are met.
The following information provides an overview of the criteria that
must be met during an adaptation:
♦ The ATF must be within a certain temperature range.
♦ A certain gear or selector lever position must be engaged.
♦ The engine load must be within a certain range. Generally a
very low engine load or very light pressure on the accelerator
pedal is required.
♦ There must be no Diagnostic Trouble Code (DTC) entries in
the transmission control module.
♦ Certain vehicle conditions must be present such as accelera‐
tion or deceleration, constant driving, vehicle stopped with the
engine running at idle, etc.
♦ There must be good road conditions, optimum road surface,
no steep inclines or declines and the road must be as level as
possible.
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
8. Repair Information 13

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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
32 – Torque Converter
1 Torque Converter
⇒ “1.1 Overview - Torque Converter”, page 14
⇒ “1.2 Torque Converter, Draining”, page 15
⇒ “1.3 Torque Converter Shaft Seal, Removing and Installing”,
page 16
⇒ “1.4 Torque Converter, Checking”, page 17
⇒ “1.5 Torque Converter, Installing”, page 17
1.1 Overview - Torque Converter
Caution
Danger of causing damage to the torque converter drive plate
or the ATF pump.
♦ Check installation dimension of torque converter before
installing transmission. Refer to ⇒ , page 18 .
Note
♦ Refer to ⇒ “8 Repair Information”, page 9 .
♦ Refer to
⇒ “8.3 Transmission, Clean Working Conditions”, page 12 .
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
14 Rep. Gr.32 - Torque Converter

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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
1 - Torque Converter
❑ Refer to
⇒ “1.2 Torque Convert‐
er, Draining”,
page 15 .
❑ Refer to
⇒ “1.4 Torque Convert‐
er, Checking”,
page 17 .
❑ Refer to
⇒ “1.5 Torque Convert‐
er, Installing”,
page 17 .
❑ Check the installation
dimension for the torque
converter before instal‐
ling the transmission.
Refer to ⇒ page 18 .
2 - Bolt
❑ 85 Nm
❑ Replace
3 - Cover
❑ Version depending on
the engine installed.
❑ The covers prevent dust
and dirt from getting into
the torque converter bell
housing.
4 - Flange
❑ For the starter.
❑ 3.0L TFSI engine only
5 - Bolt
❑ 9 Nm
❑ 3.0L TFSI engine only
6 - Shaft Seal
❑ For the torque converter.
❑ Refer to ⇒ “1.3 Torque Converter Shaft Seal, Removing and Installing”, page 16 .
1.2 Torque Converter, Draining
Special tools and workshop equipment required
♦ Used Oil Collection and Extraction Unit - SMN372500-
Procedure
If the ATF becomes dirty due to shavings or during a major trans‐
mission overhaul, then the torque converter must be drained as
follows:
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
1. Torque Converter 15

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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
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– Extract the ATF from the torque converter using the -
SMN372500- .
1.3 Torque Converter Shaft Seal, Removing
and Installing
Special tools and workshop equipment required
♦ Puller - Seal Lever - VW681-
♦ Seal Installer - Gearbox - 3295-
Procedure
• Transmission removed.
– Carefully remove the torque converter.
– Insert the -VW681- directly behind the sealing lip of the sealing
ring so that the contact ring which is behind it is not damaged.
– Remove the torque converter shaft seal with the -VW681- .
– Coat the outer circumference and the sealing lips -arrow- on
the new shaft seal with ATF.
Installed position:
• Open side of shaft seal faces transmission.
– Use -3295- to drive in torque converter shaft seal as far as
through piece stop.
Audi Q7 2007 ➤
8-Speed Automatic Transmission 0C8 - Edition 08.2017
16 Rep. Gr.32 - Torque Converter