Technical Service Bulletin
91 Wireless ASI - connection drop-outs at specific locations (e.g. toll booths)
91 23 13 2068838/3 July 17, 2023. Supersedes Technical Service Bulletin Group 91 number 23-62 dated January
20, 2023 for reasons listed below.
Model(s)

Year

A3, S3, RS 3,
Q3, Q4 e-tron,
2022 – 2023
and Q4
Sportback e-tron

VIN Range

Vehicle-Specific Equipment

Not Applicable

Audi Smartphone Interface

Condition
REVISION HISTORY
Revision

Date

Purpose

3

-

Revised header (updated software filter and model years)
Revised Service (added SW update procedure)

2

06/06/2023

Revised Service (Updated steps for A3/Q3, and Q4)

1

01/08/2022

Initial publication

Customer states:
The wireless ASI (Apple CarPlay or AndroidAuto) connection is lost or interrupted reproducibly at certain specific
locations (for example, near toll booths or other microwave transmitters).
The connection is usually reestablished when leaving the affected area.
The connection drop-outs manifest from an interruption in music streaming up to a temporary complete loss of the
wireless connection to the vehicle.
Workshop findings:
• No relevant DTCs are stored.

Technical Background
Outside interference on the 2.4GHz and 5GHz wireless frequency spectra can cause the ASI connection in the
vehicle to become unstable.

Page 1 of 5
© 2023 Audi of America, Inc.
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
Production Solution
Not applicable.

Service
A robustness measure has been introduced to improve system behavior when driving in an area with strong
outside interference on the Wi-Fi spectrum:

Check the part number of the information electronics control module –J794– carefully against the table
below and use the correct section of this TSB
For A3/Q3/Q4 vehicles with Information electronics control module –J794– (address word 005F) SW 38**:
SVM Update Instructions
1. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the with Information electronics control module –J794– (address word 005F) using the SVM action
code as listed in the table below, if necessary:
Model

Old Software Part
Number

Old
New Software New Software SVM Code
Version
Input
Software Part Number
Version (or higher)
(or higher)

89A.035.057.A
89A.035.140.A
82A.035.057.B
82A.035.020.B
A3/Q3/Q4

82A.035.065.B
82A.035.054.B

38**

*

*

5FA035

82A.035.054.H
82A.035.063.B
82A.035.050.H
82A.035.019.B

Page 2 of 5
© 2023 Audi of America, Inc.
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
82A.035.048.B
82A.035.046.B
82A.035.043.B
82A.035.019.J
82A.035.021.A
82A.035.050.B
8Y0.035.057.C
82A.035.018.B
82A.035.010.B
82A.035.067.B
82A.035.018.J
8Y0.035.063.C
8Y0.035.054.J
8Y0.035.054.C
8Y0.035.050.C
8Y0.035.065.C
8Y0.035.067.C
8Y0.035.048.F
8Y0.035.043.F
8Y0.035.046.F
8Y0.035.050.J
4CG.035.140
Table 1: Software update table for A3/Q3/Q4
A3/Q3 vehicles with Information electronics control module –J794– (address word 005F) SW36** or
SW38** and part numbers not included in Table 1
1. Turn on the ignition and wait approximately five minutes for the MMI system to be fully initialized.
2. Complete the test plan “Replace control module J794”, including all populated sub test plans via GFF in ODIS,
without actually replacing any parts.
3. When asked if the old control unit is still installed in the vehicle, select “no”.
4. Perform a vehicle bus sleep cycle.

Page 3 of 5
© 2023 Audi of America, Inc.
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
For Q4 vehicles with Information electronics control module –J794– (address word 005F) SW36**:
An optimization will be implemented via a service campaign.
This measure will reduce the susceptibility of the vehicle to external interference on the Wi-Fi frequency spectrum.
However, due to its nature, it cannot be ruled out that strong interference may still cause the ASI connection to
drop. Due to physical limitations, this may not always be preventable.
A wired ASI connection can be used. Wired connections are not susceptible to the same kind of interference.

Warranty
Claim Type:

• 110 Up to 50,000 Miles/48 Months.
• G10 for CPO Covered Vehicles – Verify Owner.
• If the vehicle is outside of any warranty, this Technical Service Bulletin is
informational only.

Service Number:

9196

Damage Code:

0039

Labor Operations:

Check vehicle (bus sleep cycle)

0689 0199

10 TU

Diagnostic Time:

GFF

0150 0000

Time stated on
the diagnostic
protocol (Max 50
TU)

Road test prior to the service procedure

No allowance

0 TU

Road test after the service procedure

No allowance

0 TU

Claim Comment:

As per TSB 2068838/3

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.

Additional Information
All parts and service references provided in this TSB (2068838) are subject to change and/or removal.
©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

Page 4 of 5
© 2023 Audi of America, Inc.
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
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.

Page 5 of 5
© 2023 Audi of America, Inc.
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.