Technical Service Bulletin
91 Parking aid not working due to environmental influences, DTC B10FCF0/B107BF0/B10FCF1/B107BF1
91 23 45 2069694/2 November 7, 2023. Supersedes Technical Service Bulletin Group 91 number 23-80 dated
March 15, 2023 for reasons listed below.
Model(s)

Year

A3, S3, RS 3, Q4
e-tron, and Q4 e- 2022 – 2025
tron Sportback

VIN Range

Vehicle-Specific Equipment

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

2

-

Revised Title (Added DTC’s to title)
Revised Header (Added Model Years)
Revised Condition (Added DTC’s and symptom codes)
Revised Service ( Updated verbiage for new DTC and symptom codes)

1

03/15/2023

Initial publication

Customer states:
The warning message “Front/rear parking aid: Sensor view restricted because of environmental factors” appears
in the instrument cluster.
Workshop findings:
• The message is reproducible.
And/Or
One of the following DTCs are stored in the parking aid control module, -J446- (address word 0076):
• DTC B107BF0/B107BF1 (Rear parking aid sender, malfunction because of environment influences) with
symptom code 1080304 or 13959168 or 13959179.
• DTC B10FCF0/B10FCF1 (Front parking aid sender, malfunction because of environment influences) with
symptom code 1113328 or 13959169 or 13959178.

Technical Background
The new generation of ultrasound parking aid sensors are able to detect problems due to external influence such
as dirt, ice, and external ultrasound signals.
When the system detects such problems the system is made temporarily unavailable in order to prevent false
warnings to the driver. When this occurs a message is displayed to the driver in the instrument cluster.
© 2023 Audi of America, Inc.

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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
Below are examples based on the symptom code found with DTC B107BF0, B107BF0/B10FCF0, B10FCF1:
• Symptom 1080304 or 1113328: Temporary partial availability of the system due to environmental influences
(e.g. external ultrasound noises)
• Symptom 13959168/13959169/13959178/13959179: Temporary partial availability of the system due to
environmental influences (e.g. dirt/ice)

Production Solution
Not applicable.

Service
Perform the following checks on the respective ultrasound sensors (depending on DTC):
• Check for dirt, ice, foreign objects, stickers, and a properly fit license plate.
• Check for damage on the bumper, air intake grille, and underbody which indicates an impact during parking.
• Check for mechanical damage (stone chips and scratches).
• Check the fit of the sensors, bumpers, and trim in the surrounding areas.
• Check the measured values “Parking aid sender settling time in the parking aid control module” -J446- (address
word 0076) for a cyclic/dynamic change of the respective measured values when approaching an obstacle.
Scenario 1: If the concern occurs sporadically: no further measures are necessary, as it is caused by
environmental influences.

In this case, replacement of the driver assistance systems –J446- (address word 0076) or sensors
without clear findings is not effective. Part replacement does not solve this issue. Claims for replaced
parts will be subject to review.
Scenario 2: If the concern is reproduced or is static: One of the ultrasound sensors, mountings or circuits may be
faulty. If this is the case, proceed with standard diagnosis.

An indicator of a malfunction may be present is a significantly increased frequency counter within the standard
ambient conditions of the respective fault code.

Warranty
This TSB is informational only and not applicable to any Audi Warranty.
© 2023 Audi of America, Inc.

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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 part and service references provided in this TSB (2069694) 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.
©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
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.

© 2023 Audi of America, Inc.

Page 3 of 3

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.