87 Warm air from vents with top open and HVAC off
87 20 04 2058598/1 February 20, 2020.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A3 Cabriolet

2018 - 2020

All

Not Applicable

Condition
Customer states:
 The customer feels a flow of warm air from the panel vents or footwell when the convertible top is open and
the HVAC system is turned off.
 This symptom is intermittent.

Technical Background
There is an intermittent control strategy malfunction under certain atmospheric conditions.

Production Solution
There has been a refinement in the control strategy beginning with SW 161. This was a rolling implementation.

Service
The existing climatronic control module, J255 (address word 0008) cannot be updated and must be
replaced. Refer to the following table:

Original Hardware
Number

Original Software
Number

New Hardware Number

New Software Number

8V0820043M

< SW 150

8V0820043AM

> SW 161

8V0820043AE

< SW 150

8V0820043AM

> SW 161

8V0820043Q

< SW 150

8V0820043AL

> SW 161

8V0820043AF

< SW 150

8V0820043AL

> SW 161

Page 1 of 3
© 2020 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.

8V0820043T

< SW 150

8V0820043AN

> SW 161

Warranty
 110 up to 48 Months/50,000 Miles.

Claim Type:

 G10 for CPO Covered Vehicles – Verify Owner.
 If the vehicle is outside any warranty, this Technical Service Bulletin is informational
only.
Service Number:

8704

Damage Code:

0039

Labor Operations:

HVAC control replace

8704 5500

See SRT

Diagnostic Time:

GFF

0150 0000

Time stated on
the diagnostic
protocol (Max 30
TU)

Road test prior to the service procedure

01 21 00 02

10 TU

Road test after the service procedure

01 21 00 04

10 TU

As per TSB #2058598/1

Claim Comment:

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
The part numbers mentioned in this TSB are different than the ones listed in ETKA. Only use parts listed in this
TSB, this includes superseding part numbers!
Part Number

Part Description

Quantity

8V0820043AM

01

Page 2 of 3
© 2020 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.

Display and Operating Unit
-or8V0820043AL

01

Display and Operating Unit
-or8V0820043AN

01

Display and Operating Unit

Additional Information
All parts and service references provided in this TSB (2058598) are subject to change and/or removal.
©2020 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
© 2020 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.