A8722212066686_1

Technical Service Bulletin
87 Uncomfortable passenger compartment temperature
87 22 21 2066686/1 March 30, 2022.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
Q3
2019 – 2021
All
Not Applicable
Q3
2022
000001 – 020297
Not Applicable
Condition
Customer states:
The customer complains that the air temperature in the cabin changes abruptly from the set temperature on the
HVAC control. The rear air outlet in particular may lose the ability to adjust the outlet air temperature. It may only
be capable of delivering full hot or full cold air.
Workshop findings:
While this symptom may be intermittent in nature it is still possible to duplicate this malfunction.
HVAC Electronics control module, E87 Control Module (address word 0008):
• DTC B131811: Potentiometer for rear vent temperature Short circuit to Ground (GND) is stored in 08 - HVAC
Electronics.
Technical Background
The outlet air temperature sensor evaluation in the E87 HVAC control software can, in certain environmental
conditions, cause irregular air temperature delivery among the available HVAC zones. Improved software is
available to mitigate this symptom.
Production Solution
New software in the HVAC Electronics control module, E87 (address word 0008) has been implemented in
production.
© 2022 Audi of America, Inc.
Page 1 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.
Technical Service Bulletin
Service
SVM Update Instructions
Always use DoIP when flashing a control module via ODIS in supported vehicles.
To Activate DoIP, select Administration>>General>>GFF Process>>DoIP communication>>Only allow DoIP
communication
This setting will automatically reset when the diagnostic session is ended.
You can tell if DoIP is active by observing a red LED on the VAS 6154(A)
1. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the HVAC Electronics control module, E87 (address word 0008) using the SVM action code as listed in
the table below, if necessary:
Model
Diagnostic
Old Software
Old Software
Address
Part Number
Version
Q3
0008
83A820043*
0060
New Software Part New Software
Number
Version
(or higher)
(or higher)
83A820043*
0070
SVM Code
Input
08A035
Warranty
Claim Type:
• 110 up to 48 Months/50,000 Miles
• G10 for CPO Covered Vehicles – Verify Owner
• If the vehicle is outside of any warranty, this Technical Service Bulletin is
informational only.
Service Number:
8704
Damage Code:
0039
© 2022 Audi of America, Inc.
Page 2 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.
Technical Service Bulletin
Labor Operations:
Software Update (Includes checking for
0151 0000
DTCs)
Time stated on
the diagnostic
protocol (Max
30 TU)
Diagnostic Time:
Claim Comment:
GFF
No allowance
0 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 2066686/1
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.
Additional Information
All part and service references provided in this TSB (2066686) 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.
©2022 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.
© 2022 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.