40 Rumbling/creaking noises from front of the vehicle when driving - Q7, Q8, A8, and Audi e-tron quattro
40 20 03 2058489/2 March 12, 2020. Supersedes Technical Service Bulletin Group 40 number 20-01 dated
February 6, 2020 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

Q7

2017 - 2019

All

Not Applicable

Q7

2020

000001 - 008523

Not Applicable

Q8

2020

000001 - 011971

Not Applicable

A8

2020

000001 - 008304

Not Applicable

Audi e-tron
quattro

2020

000001 - 016781

Not Applicable

A8, Q8, and
Audi e-tron
quattro

2019

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

2

-

Revised Warranty (Updated Labor Operations)

1

02/06/2020

Initial publication

Customer states:
 They can hear rumbling, squeaking, creaking or similar noises from the front end when driving on uneven
roads. The noises can possibly be heard and felt in the foot well or behind the dash panel.
Workshop findings:
 The noises can be reproduced.

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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 Background
The noises can be generated on the lower
left guide in the area of the hydro-bush.
(Figure 1 – Position 7 and 8).

Figure 1. Hydro-bush.
Parts such as the coupling rod (Figure 2 –
Position 30) are usually replaced by
mistake, presenting no problems.
The noises from the guide link can be
transmitted into the vehicle interior by the
connection of the sub frame on the body
and are noticeable in the foot well.

Figure 2. Coupling rod.

Production Solution
Not applicable.

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© 2020 Audi of America, Inc.
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.

Service
1. Replace the hydro-bush on the guide link in pairs (Figure 1 – Position 8) according to the instructions in Elsa
at Repair Manual, Chassis >> Suspension, Wheels, Steering >> 40 Front Axle >> Lower Control Arm and
Ball Joint >> Guide link bonded rubber bushing, Removing and Installing.
2. Before installation, ensure that the new parts of the hydrobush have a parts version of 03S or higher (Figure 3).

Figure 3. Hydro-bush parts number.
3. If repeat repairs are necessary and the hydro-bush has already been replaced (pressed out/in), the complete
guide link has to be replaced (Figure 1 – Position 7) in Elsa at Repair Manual, Chassis >> Suspension,
Wheels, Steering >> 40 Front Axle >> Lower Control Arm and Ball Joint >> Guide Link, Removing and
Installing.
Before installation, ensure the new guide link has a parts
version of 05S or higher (see Figure 4).
Tip:
 Please precisely locate the source of the noise with
acoustic testers.
 Check the repair history for repeat repairs.

Figure 4. New guide link parts version.

Page 3 of 5
© 2020 Audi of America, Inc.
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.

Warranty
Claim Type:

 110 up to 48 months/50,000 miles.
 G10 for CPO covered vehicles – Verified Owner.
 If vehicle is outside warranty, this Technical Bulletin is informational only.

Service Number:

4012

Damage Code:

0020

Labor Operations:

1 Lower guide link remove + reinstall

4016 1950

See SRT

2 Lower guide links remove + reinstall

4016 2050

See SRT

Replace guide link mounting

4012 5550

See SRT

Replace 2 guide link mounting

4012 5650

See SRT

GFF

No allowance

0 TU

Road test prior to the service procedure

0121 0002

10 TU

Road test after the service procedure

0121 0004

10 TU

Diagnostic Time:

Claim Comment:

As per TSB #2058489/2

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

Hydro-Bush

02

See ETKA

Guide Link (only if Hydro-Bush has been replaced
previously)

01 or 02

See ETKA

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

See ETKA/ELSA

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© 2020 Audi of America, Inc.
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.

Additional Information
All parts and service references provided in this TSB (2058489) are subject to change and/or removal.
©2020 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.

Page 5 of 5
© 2020 Audi of America, Inc.
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.