TSB_2079977_2 Service Bulletin/Repair Instructions

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Technical Service Bulletin
91 MMI Entertainment: no audio volume reduction after using Apple CarPlay
Condition
Transaction No.: 2079977/2

Release date: Dec 19, 2025
Model(s)
Year(s)
VIN Range
Vehicle Specific Equipment
Ad, S5 (FU), A6 Sportback

e-tron, S6 Sportback e-

tron (GH), Q5, Q5

Sportback e-tron, SQ5,

$Q5 Sportback e-tron

(GU), Q6 e-tron, Q6

Sportback e-tron, SQ6 e-

tron, and SQ6 Sportback

e-tron (GF)
2025
All
Not applicable
REVISION HISTORY
Revision | Date Purpose
2 - Revised Warranty (Updated Labor Operations)
1 11/10/2025 | Initial publication
Customer states:
Audio volume reduction for media playback during navigation announcements or traffic reports sometimes does not
work.
The complaint occurs in particular when using Apple CarPlay.
Workshop findings:
The complaint can be reliably reproduced in the workshop by performing the following steps:
1. Check in the MMI audio settings that the audio volume reduction is activated for navigation announcements
and traffic reports.
2. Connect a mobile device to use Apple CarPlay and start media playback via Apple CarPlay.
3. Start route guidance via the native navigation system in the MMI.
4. Inthe MMI navigation menu, select the next navigation instruction so that the navigation announcement is
played for this instruction.
5. Activate voice control with Siri (by saying “Hey Siri”) and then stop again.
6. Repeat step 4.
While the expected audio volume reduction occurs during steps 4 and 5, this is no longer the case during step 6.
Technical Background
Software issue.
Production Solution
The complaint will no longer occur in vehicles manufactured in week 42/25 or later.
Service
This TSB replaces Pending Service Solution (PSS) TSB 2078181, 97 PSS MMI Entertainment: No audio volume

reduction after using Apple.
Update the MMI software following directions in TSB 2079690, 00 Combined software update 03.10.00/C (28.13.07)

KD2.
Warranty

Claim Type: * If the vehicle is outside of any warranty, this Technical Service Bulletin is

informational only.

Service Number: 9196

Damage Code: KDO02

Labor Operations: Software update, including connecting battery 0151 0010 See SRT with

charger associated

operations

Fixed rate for software update, including all 0151 0040 130 TU

required preliminary and follow-up work

(including bus sleep cycle, calibration drives, and

additional work)

In the case of additional attempts after flash abort |0150 9999 50 TU

occurred, an additional lump sum of 50 time units p h

can be claimed per flash cancellation ef eac

documented attempt

Claim Comment: As per TSB 2079977/2
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.
When performing the combined software update, time stamps are not required for billing under warranty. You are

therefore permitted to work on other vehicles at the same time. The combined software update can also be

performed by non-productive personnel.
Additional Information
All part and service references provided in this TSB (2079977) 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.
©2025 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.

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