Technical Service Bulletin
40 Creaking/squeaking noises from the front end on uneven roads
40 23 64 2043424/17 June 29, 2023. Supersedes Technical Service Bulletin Group 40 number 23-54 dated May
8, 2023, for reasons listed below.
Model(s)

A3, and S3

Year

All

Not Applicable

2022 – 2024
2015 – 2019

A3 Sportback etron

2016 – 2018

Q3

Vehicle-Specific Equipment

2015 – 2020

A3 Cabriolet

RS 3

VIN Range

2017 – 2020
2022 – 2024
2019 - 2024

Condition
REVISION HISTORY
Revision

Date

Purpose

17

-

Revised header (Added Model Year)

16

05/08/2023

Revised Warranty (Updated Labor Operations)

15

04/05/2023

Revised Parts and Tools (Updated Part Numbers)

Customer states:
• Creaking/squeaking noises are heard from the left front or right front area of the vehicle when it is driven on
uneven roads.

Technical Background
Note:
Try to duplicate this condition exactly. If you cannot, do not perform this TSB.

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© 2023 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.

Technical Service Bulletin
Overview of the lower control arm and bushing (Figure 1).

Figure 1. Lower control arm and bushing.

Page 2 of 6
© 2023 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.

Technical Service Bulletin
The rear bonded rubber bushings of the front lower control
arms have kidney-shaped slits (Figure 2). When the vehicle
is driven on uneven roads, areas A and B (Figure 2) may
come in contact, creating a creaking/squeaking noise.

Figure 2. Kidney-shaped slits (yellow arrows) of
the rear bonded rubber bushings.

Production Solution
Not Applicable

Service

Page 3 of 6
© 2023 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.

Technical Service Bulletin
1. Remove both front lower control arms. Follow instructions in Elsa at Repair Manual, Chassis >> Suspension,
Wheels, Steering >> Front Suspension >> Lower Control Arm and Ball Joint >> Lower Control Arm,
Removing and Installing.
2. Evenly grease the kidney-shaped slits of the
bonded rubber bushing (Figure 3, the area
shown red) from above with 0.1g of lithium
grease (part number G 052 150 A2). Use a
paintbrush to apply the grease.
Note:
The lithium grease must only be applied to the
areas shown in red (Figure 3).

Figure 3. Lithium grease is applied on the red highlighted
area only.
3. Reinstall all components according to Elsa.

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:

4020

Damage Code:

0020

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© 2023 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.

Technical Service Bulletin

Diagnostic Time:

Both lower control arms 4017 20XX
remove + reinstall

See SRT with
associated operations

Deactivate/Activate HV
system voltage (A3 etron Only)

9310 8350

See SRT with
associated operations

Grease 2 bonded
rubber bushings

4020 4299

10 TU

GFF

Not Allowed

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 2043424/17
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

G 052150A2

Lithium grease

1

See ETKA

One-time use hardware according to Elsa

As needed

See ETKA

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

See ETKA/ELSA

G 052150S0 (This number should be used in
the SAGA warranty claim only)

Additional Information
More information on this system can be found in the following resources:
• Elsa: Chassis >> Suspension, Wheels, Steering >> Front Suspension >> Lower Control Arm and Ball Joint >>
Lower Control Arm, Removing and Installing.

Page 5 of 6
© 2023 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.

Technical Service Bulletin
All parts and service references provided in this TSB (2043424) are subject to change and/or removal.
©2023 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 6 of 6
© 2023 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.