A4521162063679_1

45 DTC C1399F0 is stored in the ABS control module
45 21 16 2063679/1 June 16, 2021.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
Audi e-tron
GT, Audi
RS e-tron
GT
2022
All
Not Applicable
Condition
Customer states:
 Recuperation too low when braking on new vehicle or after brake discs/brake pads have been replaced.
Workshop findings:
The following DTC may be stored in the ABS control module, J104 (address word 0003):
 DTC C1399F0 (Brake application mode active).
Technical Background
The brake application mode for breaking in the pad on the disc is being used for the first time at Audi.
At the same time, recuperation is deactivated and braking is performed manually. During this time, the specified
DTC (C1399F0) is logged in the ABS control module, J104 (address word 0003).
The breaking-in process then takes place when the brakes are applied while driving. This is not shown actively to
the customer in the instrument cluster or the MMI.
This mode and the DTC are deactivated automatically when the required amount of energy is reached, (for
example: when the breaking-in process is complete).
Production Solution
Not applicable.
Service
1. Select the following function in ODIS (via GFF or Guided Functions): 003 Break-in service brakes.
Page 1 of 2
© 2021 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.
2. Follow the tester instructions if the brake discs and/or brake pads are replaced and/or DTC is
present.
3. Reevaluate the vehicle and release it afterward.
Warranty
Claim Type:
 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If the vehicle is outside any warranty, this Technical Service Bulletin is informational
only.
Service Number:
4530
Damage Code:
0040
Diagnostic Time:
GFF
0150 0000
Time stated on
the diagnostic
protocol (Max 40
TU)
Road test prior to the service procedure
0121 0002
10 TU
Road test after the service procedure
0121 0004
10 TU
Claim Comment:
As per TSB #2063679/1
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 (2063679) 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.
©2021 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 2 of 2
© 2021 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.