A8024142073370_1

Technical Service Bulletin
80 Poor, uneven or no cabin heating output
80 24 14 2073370/1 March 12, 2024.
Model(s)
Year
e-tron Sportback
quattro
2020 - 2023
e-tron quattro
2021 - 2023
e-tron S
2022 - 2023
Q8 e-tron, Q8
Sportback e-tron,
SQ8 e-tron, and
SQ8 Sportback
e-tron
2024
VIN Range
Vehicle-Specific Equipment
All
Not Applicable
Condition
Customer states:
The heating output in the vehicle is insufficient, uneven or there is no heating output.
Workshop findings:
The complaint can be reproduced. Diagnosis finds obstructed or blocked coolant flow through the heat exchanger
(4M0816413A).
Technical Background
Deposits in the cooling system can accumulate in the heat exchanger and obstruct coolant flow. The quality of the
cabin heating is then compromised.
Production Solution
Not applicable.
Service
© 2024 Audi of America, Inc.
Internal
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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
Before replacing the heat exchanger flush the
component with water in the opposite flow direction
in attempt to clear the deposits. If the flushing
process is not successful and deposits remain in the
component replace the heat exchanger. Refer to the
cooling system flushing procedures in ElsaPro or
TSB 2062583 “80 The interior vehicle heating is
insufficient, and the engine coolant is discolored” if
additional guidance is required.
Figure 1. Heat exchanger 4M0816413A.
Please exercise care not to contaminate the refrigerant side of the heat exchanger with water,
coolant, moisture, etc. Thoroughly seal off the refrigerant side of the heat exchanger to avoid
any intrusion of moisture or contaminants during the cleaning procedure.
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:
8023
Damage Code:
0010
Labor Operations:
Heat exchanger remove and reinstall
9383 1950
See SRT with
associated
operations
Clean heat exchanger
9383 2999
Use required time
supported by
punch time
(50 TU Max)
Diagnostic Time:
GFF
© 2024 Audi of America, Inc.
Internal
0150 0060
Time stated on the
diagnostic protocol
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
(Max 100 TU)
Claim Comment:
Road test prior to the service procedure
No allowance
0 TU
Road test after the service procedure
No allowance
0 TU
As per TSB 2073370/1
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
The following Technical Service Bulletin(s) will be necessary to complete this procedure:
• TSB 2062583, 80 The interior vehicle heating is insufficient and the engine coolant is discolored.
All part and service references provided in this TSB (2062583) 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.
©2024 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.
© 2024 Audi of America, Inc.
Internal
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.