A4723242071255_1

Technical Service Bulletin
47 Knocking noise when releasing the brake pedal in break-in mode
47 23 24 2071255/1 August 18, 2023.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
e-tron GT, and
RS e-tron GT
2022 – 2024
All
Not Applicable
Condition
Customer statement:
• Knocking noise when releasing the brake pedal.
Workshop findings:
• The noise can be reproduced.
• The “break-in mode” is active and recuperation has therefore been deactivated.
Technical Background
The hydraulic brake is the only form of retardation in break-in mode as recuperation has been deactivated. The
audible operation noise from the brake master cylinder when releasing the brake pedal is perceived as a knocking
noise.
Production Solution
Not applicable.
Service
No measures or replacement parts are required. This scenario represents normal behavior.
After break-in mode has ended automatically (according to driver profile, up to 1000 miles driving is required),
recuperation is reactivated and the noise no longer occurs, or only occurs at a significantly reduced level.
Warranty
This TSB is informational only and not applicable to any Audi Warranty.
Required Parts and Tools
© 2023 Audi of America, Inc.
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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
Delete if not needed.
Additional Information
All part and service references provided in this TSB (2071255) are subject to change and/or removal. Always
check with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the
Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
©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.
© 2023 Audi of America, Inc.
Page 2 of 2
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.