Technical Service Bulletin
87 PSS: HVAC control head lighting flickers intermittently
87 24 88 2071176/4 August 29, 2024. Supersedes Technical Service Bulletin Group 87 number 24-76 dated June
21, 2024 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

Q4 e-tron, and
Q4 Sportback etron

2022 – 2025

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

4

-

Revised header (Add Model Year 2025)
Revised Condition (Add Model Year 2025 to model year application)

3

06/21/2024

Revised header (Add affected software level)
Revised Condition (Add affected software level)
Revised Service (Solution target date extended)

2

10/09/2023

Revised header (Add Model Year 2022)
Revised Condition (MY 2022 added to bulletin application)

This bulletin applies to 2022 – 2025 Q4 with software 0460 and 0465 (address word 0008) only.
Customer States:
The lighting on the buttons for the front A/C display control head will occasionally flicker. During these
episodes the control head will not accept any input.
Workshop Findings:
While this symptom is sporadic in nature, it is possible to reproduce.

© 2024 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
Technical Background 1
During the routine LIN communication between the front air conditioning control head (E87) and the 08 –
HVAC Electronics control module (J979) a dissonance can occur in the communication LIN and results in
sporadic flickering of the control head lighting.

Production Solution
This bulletin will be updated when more information is available. A solution is currently under development.

Service
1. Explain to the customer that a solution is expected to be available by the end of the 1st quarter 2025
(subject to change) and that no repairs are necessary at this point. Do not replace any components for
this condition since this will not resolve the customer’s concern.
2. Create a PSS record in the PSS application through the Pending Service Solutions (PSS) link in
AccessAudi (under Related Links >> Service). As soon as further information is known, this TSB will be
updated.

Tip: A key cycle restores normal operation.

Warranty
This TSB is informational only and not applicable to any Audi Warranty.

Additional Information
All parts and service references provided in this TSB (2071176) are subject to change and/or
removal. Always check with your Parts Department and/or ETKA for the latest information an parts
bulletins. Please check the repair Manual for fasteners, bolts, nuts, and screws that require replacement
during the repair.

© 2024 Audi of America, Inc.
Internal

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
© 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.