A9124992073629_1

Technical Service Bulletin
91 ASI: Apple CarPlay connection is dropped repeatedly in short intervals
91 24 99 2073629/1 April 8, 2024.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
All Audi Vehicles
2019 - 2025
All
Audi Smartphone Interface (ASI)
Condition
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 can not 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 17.3.1, however, both newer and older iOS versions
may be affected by this bug.
This is a bug in the iPhones iOS operating system and not a vehicle defect.
Production Solution
Not applicable.
Service
No repair is available at this time.
1. Do not perform any repairs. Any repairs for this concern may be denied.
2. Instruct the customer that this condition is due to outside, third party influence and can therefore not be
repaired by Audi.
© 2024 Audi of America, Inc.
Internal
Page 1 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.
Technical Service Bulletin
Workaround:
• Ask the customer to delete all Bluetooth, Wi-Fi and ASI pairings between the phone and the vehicle on the
MMI as well as on the phone.
• Tell the customer that they will have to decide between wireless Apple CarPlay™, or wired Apple CarPlay™.
• If the customer decides to use wireless Apple CarPlay™, inform them to not also use a USB cable to
charge the phone. Wirelessly charging the phone on the Audi PhoneBox is possible.
• If the customer decides to use wired Apple CarPlay™, inform them to not also pair the phone via Bluetooth
or Wi-Fi to the vehicle.
We recommend that the customer always update their iPhone and keep it maintained with the newest
iOS version. This TSB will be updated when more information becomes available (e.g., which iOS
update may fix this issue).
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.
© 2024 Audi of America, Inc.
Internal
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.