A4722212067321_5

Service Bulletin Details

Public Details for: A4722212067321_5

This bulletin contains instructions for when the brake servo unit is the source of a squawking noise.


- 2023 - 2022 - 2021 - 2020 - 2019 - 2018 -

Technical Service Bulletin
47 Brake Servo Unit is noisy when pressing the brake pedal - Q5
47 22 21 2067321/5 December 12, 2022. Supersedes Technical Service Bulletin Group 47 number 22-18 dated
September 14, 2022 for reasons listed below.
Model(s)
Year
Q5, and SQ5
2018 – 2023
Q5 e quattro
2020 – 2023
Q5 Sportback,
and SQ5
Sportback
2021 - 2023
VIN Range
Vehicle-Specific Equipment
All
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
5
-
Revised Service (Added Information)
4
09/12/2022
Revised Warranty (removed test drive)
3
08/03/2022
Revised header (Added Model Years)
Customer states:
• Squeak noises can be heard when pressing the brake pedal.
Workshop findings:
• The noise can be reproduced and is coming from the Brake Servo Unit (Brake Booster).
Technical Background
The noises are coming from the brake servo unit rubber boot.
Note:
This bulletin does not include PHEV vehicles.
Production Solution
Improved rubber boot was introduced gradually in the 1st Quarter of 2021.
Service
© 2022 Audi of America, Inc.
Page 1 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.
Technical Service Bulletin
If noises are identified when pressing the brake pedal, proceed as follows:
• Record an audio file of the complaint (ATTENTION! Try to locate the exact area of the noise, examples:
end of the rubber boot area; inside the servo unit, pedal assembly, etc…).
• Attach the audio file to the DOC-IT database (Include VIN Number in the file).
• Replace Brake Servo Unit according to:
ELSA>>Repair Manual>>Chassis>>Brake System>>47 Hydraulic Components>>Brake Booster/Brake Master
Cylinder>>Brake Booster Removing/Installing.
Note:
Replaced Components without audio files uploaded to DOC-IT will be debited!
Warranty
Claim Type:
• 110 up to 48 Months/50,000 Miles.
• G10 for CPO Covered Vehicles – Verify Owner.
• If the vehicle is outside of any Audi Warranty, this bulletin is informational only.
Service Number:
4770
Damage Code:
0020
Labor Operations:
Brake servo unit replace
4770 1900
See SRT
Diagnostic Time:
GFF
0150 0000
Time stated on
the diagnostic
protocol (Max 50
TU)
Road test prior to the service procedure
No allowance
0 TU
Road test after the service procedure
No allowance
0 TU
As per TSB 2067321/5
Claim Comment:
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
Brake Servo Unit (Brake Booster)
See ETKA/ELSA
© 2022 Audi of America, Inc.
Page 2 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.
Technical Service Bulletin
See ETKA
Fasteners, Bolts, Nuts, and Screws as needed per the
Repair Manual
See ETKA/ELSA
Additional Information
All parts and service references provided in this TSB (2067321) are subject to change and/or removal.
©2022 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.
© 2022 Audi of America, Inc.
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.


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