Technical Service Bulletin
57 Engine Start system warning or Power unit start system warning, B200047
57 23 20 2071735/2 October 25, 2023. Supersedes Technical Service Bulletin Group 57 number 23-17 dated
October 12, 2023 for reasons listed below.
Model(s)

Year

A4, A4 allroad,
S4, A5, A5
Cabriolet, A5
Sportback, S5,
S5 Cabriolet, S5
Sportback, RS 5,
RS 5 Sportback,
Q7, SQ7, Q8,
SQ8, and RS Q8

2023 - 2024

e-tron quattro, etron Sportback
quattro, and etron S

2023

Q8 e-tron, Q8
Sportback e-tron,
SQ8 e-tron, and
SQ8 Sportbak etron

2024

VIN Range

Vehicle-Specific Equipment

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

2

-

Revised header (Add Model Year, Models)

1

10/12/2023

Initial publication

Customer States:
The message “Engine start system: fault” or “Power unit start system: fault” appears in the instrument
cluster. There are no functional issues.
Workshop findings:
The following DTC and symptom code combinations is stored in the Comfort Control Module, -J393- (address
word 0046):
• DTC B200047: Control Module Faulty, active/static – Symptom 65552.

© 2023 Audi of America, Inc.

Page 1 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
Technical Background
There is a software issue in the Comfort Control Module -J393-.

Production Solution
Not applicable.

Service
SVM Update Instructions
1. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the Comfort Control Module -J393- (address word 0046) using the SVM action code as listed in the
table below, if necessary:
Model

Diagnostic
Address

A4, A5, Q7,
Q8, and Q8
e-tron

0046

Old Software
Part Number

8W1.907.064.*

Old
Software
Version

0627

New Software
Part Number
(or higher)

8W1.907.064.*

New
Software
Version

SVM
Code
Input

(or higher)
0628

46A034

The key must be on the emergency reader coil during the update.

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:

5789

Damage Code:

0039

© 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
Labor Operations: Software Update (Includes checking for
DTCs)

0151 0000

Time stated on the
diagnostic protocol
(Max 100 TU)

Diagnostic Time:

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

Claim Comment:

As per TSB 2071735/2

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 2011732: 00 Software Version Management (SVM), operating instructions.
All part and service references provided in this TSB (2071735) 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.