Q7 Power Transmissions[1].pdf

Service Training

The Audi Q7 Power Transmission

Self-Study Program 993603

Audi of America, Inc.

Service Training

Printed in U.S.A.

Printed 02/2006

Course Number 993603

based on the latest information available at the time of printing

and is subject to the copyright and other intellectual property

rights of Audi of America, Inc., its afﬁliated companies and its

licensors. All rights are reserved to make changes at any time

without notice. No part of this document may be reproduced,

stored in a retrieval system, or transmitted in any form or by

any means, electronic, mechanical, photocopying, recording or

otherwise, nor may these materials be modiﬁed or reposted to

other sites without the prior expressed written permission of

the publisher.

All requests for permission to copy and redistribute

information should be referred to Audi of America, Inc.

Always check Technical Bulletins and the latest electronic

repair information for information that may supersede any

information included in this booklet.

Trademarks: All brand names and product names used in

this manual are trade names, service marks, trademarks, or

registered trademarks; and are the property of their respective

owners.

Table of Contents

Overview

Powertrain concept ....................................................................................................2

Subassemblies overview ...........................................................................................4

Brief description of the transmission

0AT/09D 6-Speed Automatic Transmission .............................................................6

Gear selector mechanism

Automatic Transmission Selector Mechanism .......................................................8

0AQ Transfer Case

Design and Function of the 0AQ Transfer Case ....................................................13

Self-locking Center Differential. ...............................................................................15

Components Overview/Design and Function ........................................................16

Asymmetric Basic Torque Distribution ..................................................................18

Asymmetric-Dynamic Torque Distribution ............................................................19

Chain Drive ................................................................................................................23

Lubrication ................................................................................................................25

Oil Supply/Sealing ....................................................................................................27

Service

Service/Special Tools ...............................................................................................28

Useful information

Operating instructions . ...........................................................................................29

Self-Study Programs for the Audi Q7 . . . . . . . . . . . . . . . .31

The self-study program provides introductory information regarding the design and

function of new models, automotive components or technologies.

The self-study program is not a Repair Manual!

All values given are intended as a guideline only and refer to the software version

valid at the time of publication of the SSP.

For maintenance and repair work, always refer to the current technical literature.

Reference

Note

Overview

Audi Q7 - Power transmission by the inventor of

the quattro®

In addition to outstanding dynamics, the Audi Q7

powertrain concept ensures an impressive performance

at high speeds, both on highway and off-road.

The permanent quattro® four-wheel drive with

asymmetric-dynamic torque split ensures maximum

traction and cornering stability. These features are

essential to good driving dynamics and active driving

safety.

The newly designed 0AQ Transfer Case is a key feature of

the power transmission system.

The purpose of this SSP is to explain the design and

function of this new system.

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