91 ASI: Apple CARPLAY Connection Is Dropped Repeatedly In Short Intervals (GROUP 91, NO. 24-99)
Reference number: GROUP 91, NO. 24-99
Supersedes refnos: 2073629/1, 2073629/2, GROUP 91, NO. 24-15
91 ASI: APPLE CARPLAY CONNECTION IS DROPPED REPEATEDLY IN SHORT INTERVALS
TECHNICAL SERVICE BULLETIN
| AUDI: | 2019-2025 All Audi Vehicles |
| GROUP: | 91 - Radio, Telephone, Board Computer, Multi-Function Indicator (MFI) |
SERVICE INFORMATION
91 24 15 2073629/2 May 22, 2024. Supersedes Technical Service Bulletin Group 91 number 24-99 dated April 8, 2024, for reasons listed below.
| Model(s) | Year | VIN Range | Vehicle-Specific Equipment |
|---|---|---|---|
| All Audi Vehicles | 2019 - 2025 | All | Audi Smartphone Interface (ASI) |
CONDITION
| Revision | Date | Purpose |
|---|---|---|
| 2 | - | Revised Technical Background
(added fixed iOS version) Revised Service (added iOS update solution) |
| 1 | 04/08/2024 | Initial publication |
Customer states:
- Shortly after Apple CarPlay™ is started on the MMI, the connection between the iPhone and the vehicle is disconnected. A couple seconds later, the phone reconnects with the vehicle and starts Apple CarPlay™, only for it to disconnect again after a short period of time.
Workshop findings:
- The customer statement can be reproduced.
- If a wired connection is used, and the USB cable then unplugged to switch back to a wireless connection, the wireless Apple CarPlay™ connection remains stable.
TECHNICAL BACKGROUND
If the iPhone is initially paired wirelessly to the vehicle, but then, after a vehicle sleep cycle, a wired connection is used (for example, to charge via USB), the phone cannot properly determine if a wired or wireless connection is to be used.
This leads to a "reconnect-loop", initiated by the phone, which causes the customer complaint.
Currently, this behavior is known to happen with iOS version 17.3.* and iOS version 17.4.*. It is not reproducible with iOS 17.5.*.
This is a bug in the iPhones iOS operating system and not a vehicle defect.
PRODUCTION SOLUTION
Not applicable.
SERVICE
No repair is currently available.
- Do not perform any repairs. Any repairs for this concern may be denied.
- Instruct the customer that this condition is due to outside, third party influence and can therefore not be repaired by Audi.
Solution:
- Please ask the customer to update their iPhone to the newest available software (17.5.* or newer).
WARRANTY
This concern is due to a third-party system and is not covered by any Audi Warranty.
ADDITIONAL INFORMATION
All part and service references provided in this TSB (2073629 ) 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.
©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.