Technical Service Bulletin
39 Noises and/or vibrations in tight turns
39 24 57 2059129/5 January 25, 2024. Supersedes Technical Service Bulletin Group 39 number 23-55 dated
September 7, 2023 for reasons listed below.
Model(s)

Year

Q7

2017 – 2024

SQ5, and S4

2018 – 2024

VIN Range

Vehicle-Specific Equipment

All

Not Applicable

S5, S5 Cabriolet,
and S5
2018 – 2023
Sportback
2018 – 2019

RS 5

2021 – 2023

RS 5 Sportback

2019
2021 – 2023

A8, and Q8

2019 – 2024

S6, S7, and S8

2020 – 2024

A8 e quattro

2020 – 2021

RS 6 Avant, RS
7, SQ7, SQ8,
and RS Q8

2021 - 2024

Condition
REVISION HISTORY
Revision

Date

Purpose

5

-

Revised header (Added Model Year)

4

09/07/2023

Revised header (Added Models/Model Year 2023)

3

11/18/2022

Revised header (Added Model Years 2021 and 2022)

Customer states:
• Noises and/or vibrations in tight turns (parking lots or U-turns).
Workshop findings:
• Noises and/or vibrations in tight turns can be reproduced. Compared with an identical comparison vehicle
(model, tire size, and body style) the concern on the affected vehicle under identical conditions is significantly
more noticeable.
© 2024 Audi of America, Inc.
Internal

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All rights reserved. Information contained in this document is 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.

Technical Service Bulletin
Technical Background
Because of the different speeds between the front and rear differentials, the locking effect of the center differential
can differ significantly in tight bends (full or nearly full steering lock). This effect has a resulting tension of the
drivetrain that can lead to noises or vibrations during tight turns.
The tension does not have a negative effect on the service life of the components.

Production Solution
Not applicable.

Service
This concern is only a comfort problem. This behavior is construction-related and there are no damaged parts.
If the concern can be duplicated and it is confirmed to be worse than a like vehicle, changing the oil for the center
differential can be attempted.
Before changing the oil these other factors can also cause this condition and must be ruled out:
• Wheels/Tires: Tread depth (tires almost worn out or tread depths are significantly different from one tire to
another, hardness, the width of tire or wheel, summer or winter wheels, different tire manufacturers other than
original equipment).
• Additional tension in the drivetrain due to wheel alignment.
• Possible noise transmission of the drivetrain mounts, subframe mounts, or noisy wheel bearings.
• Different acoustics depending on body type (Sedan, Avant, and SUV).
If the above are ruled out change the oil of the center differential according to the repair manual.

Tip: It can take up to 600 miles for the condition to improve due to additives in the oil.
If the concern returns after 600 miles of driving open an Audi Technical Assistance Center case and contact the
Audi Technical Assistance Center.

Warranty
Claim Type:

• 110 up to 48 Months/50,000 Miles.
• G10 for CPO Covered Vehicles – Verify Owner.
• If the vehicle is outside any warranty, this Technical Service Bulletin is
informational only.

Service Number:

© 2024 Audi of America, Inc.
Internal

3936

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All rights reserved. Information contained in this document is 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.

Technical Service Bulletin
Damage Code:

0020

Labor Operations:

Change oil for the center differential

3990 5599

70 TU

Diagnostic Time:

GFF

0150 0000

0 TU

Road test prior to service procedure

0121 0002

10 TU

Road test after service procedure

0121 0004

10 TU

Claim Comment:

As per TSB 2059129/4

All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi Warranty.

Required Parts and Tools
Always check with your Parts Department and/or ETKA for the latest information and parts bulletins.
Part Number

Part Description

Quantity

See ETKA

Fasteners, Bolts, Nuts, and Screws as needed per the Repair
Manual

See ETKA/ELSA

G 055145A2

Axle oil for the transfer box

01

Additional Information
All parts and service references provided in this TSB (2059129) are subject to change and/or removal.
©2024 Audi of America, Inc. All rights reserved. The information contained in this document is 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.

© 2024 Audi of America, Inc.
Internal

Page 3 of 3

All rights reserved. Information contained in this document is 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.