A8722222066686_2

Technical Service Bulletin
87 Uncomfortable passenger compartment temperature
87 22 22 2066686/2 March 30, 2022. Supersedes Technical Service Bulletin Group 87 number 22-21 dated
March 30, 2022, for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
Q3
2019 – 2021
All
Not Applicable
Q3
2022
000001 – 020297
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
2
-
Revised Condition (updated verbiage for DTC)
1
03/30/2022
Initial publication
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) may be stored in 08
- HVAC Electronics.
Technical Background
© 2022 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
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.
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
New Software
New
SVM Code
Address
Part Number
Version
Part Number
Software
Input
(or higher)
Version
(or higher)
Q3
0008
© 2022 Audi of America, Inc.
83A820043*
0060
83A820043*
0070
08A035
Page 2 of 4
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
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
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
© 2022 Audi of America, Inc.
Page 3 of 4
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
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 4 of 4
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.