A9121562065485_1

Technical Service Bulletin
91 Telephone: interference during phone calls that is synced to the engine's RPM
91 21 56 2065485/1 December 14, 2021.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A3, S3
2022
All
Onboard communications module 3
Q3
2021 - 2022
All
Onboard communications module 3
Condition
Customer states:
 When making a phone call via Bluetooth, the receiving person is concerned about interference during the
phone call.
 The interference is described as a whistling noise that changes notably with the engine’s RPM.
Workshop findings:
 No relevant DTCs are stored in the vehicle.
 The customer concern can be reproduced.
Technical Background
A hardware issue of the power supply filter in the onboard communications module (OCU), J949 (address word
0075) may cause the interference to be coupled onto the microphone signal.
Production Solution
Not applicable.
Service
Please replace the onboard communications module (OCU), J949 (address word 0075) according to the Elsa
Repair Manual.
Note:
Before replacing the OCU, please make sure that the problem is reproducible and the interference noise is
coupled to the engine RPM.
Page 1 of 3
© 2021 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
Otherwise, replacing the OCU might not resolve the problem and this TSB would not apply.
Warranty
Claim Type:
 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If the vehicle is outside any warranty, this Technical Service Bulletin is informational
only.
Service Number:
9170
Damage Code:
0039
Labor Operations:
Remove and install/replace telematics control
module
9170 19XX
Or
9170 55XX
Diagnostic Time:
Claim Comment:
See SRT with
associated
operations
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
As per TSB #2065485/1
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.
Required Parts and Tools
Always check with your Parts Department and/or ETKA for the latest information and parts bulletins.
Part Number
Part Description
Quantity
See ETKA
Fasteners, Bolts, Nuts, and Screws as needed per the
Repair Manual
See ETKA/ELSA
See ETKA
Onboard Communications Module
01
Page 2 of 3
© 2021 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
Additional Information
All parts and service references provided in this TSB (2065485) are subject to change and/or removal.
©2021 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.
Page 3 of 3
© 2021 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.