A0023792069572_2

Technical Service Bulletin
00 e-tron GT battery recovery and charging requirements for service and showroom
00 23 79 2069572/2 October 30, 2023. Supersedes Technical Service Bulletin Group 00 number 23-64 dated
March 3, 2023 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
e-tron GT, and
RS e-tron GT
2022 – 2025
All
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
2
-
Revised title (changed title to make it more obvious)
Revised header (Added MY25)
Revised Condition (changed order of bullet points)
Revised Service (Added note about “jump starting” the charger)
1
03/03/2023
Initial publication
Workshop findings:
• The vehicle is worked on for service or repair.
• The vehicle is displayed on the showroom floor.
Technical Background
The e-tron GT is equipped with a LiFePo starter / auxiliary battery –A– with a nominal voltage of 13.2V and a
capacity of 60Ah.
Due to the architecture of the vehicle as well as the new “12V” battery technology, specific requirements are
necessary to maintain and charge the vehicle during service work as well as when displayed on the showroom
floor.
Especially when running the vehicle with only ignition on (for example, when displayed on the showroom floor), or
if the vehicle is experiencing certain electronic malfunctions, the starter/auxiliary battery can be drained and
become irreversibly damaged if a sufficiently sized charger is not used.
Production Solution
Not applicable.
© 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
Service
All e-tron GT vehicles are required to be connected to a “12V” battery charger while displayed on the showroom
floor or while being serviced or repaired at all times.
This charger must meet the following minimum requirements:
• Continuous output current: >= 80A (ideally >= 90A)
• Target charging voltage: 14.8V
• Absolute maximum voltage: 15.5V (any voltage spikes exceeding that voltage may damage the battery)
Failing to use a charger meeting these minimum requirements can lead to:
• Starter / auxiliary battery failure.
• Starter / auxiliary battery discharge.
• The state of charge (SOC) measured by the battery manager becomes inaccurate.
If the contactors of the 12V battery are open due to low SoC, it may be necessary to “jump start” the
battery charger by touching the charger cable clamps from a 12V source (jump start pack / other 12V
battery) for a couple seconds until the charger starts charging.
Warranty claims related to a damaged or drained starter / auxiliary battery -A- that resulted from not using a
battery charger, or using an inappropriately sized battery charger that doesn’t meet the minimum requirements
listed above, may be denied.
Suggested suitable chargers are:
Associated ESS6100
• Please make sure to use Diag+ mode set to a charging voltage of 14.8V.
Deutronics VAS5908
• Set it to a charging voltage of 14.8 Volt (release pin 6161 may be necessary, or activate DIAG+ mode by
pressing and holding the select button if the charger has not been connected to the battery or has not been
started).
Warranty
This TSB is informational only and not applicable to any Audi Warranty.
Additional Information
© 2023 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
All part and service references provided in this TSB (2069572) 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.