Technical Service Bulletin
01 MIL on (DTC P20E800)
01 15 25 2040962/1 June 19, 2015.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A6, A7

2014 - 2016

All

TDI clean diesel

A8, Q5

2014 - 2015

All

TDI clean diesel

Condition
• MIL on.
• DTC P20E800 (Reductant pressure too low) is stored in the engine control module (ECM), J623 (address word
01).
• No relevant component or electrical problems are found when Guided Fault Finding (GFF) is run on the stored
fault codes.

Technical Background
Software update is needed.
Tip: If the ECM software is already at the updated levels shown in the Service section below, this bulletin
does not apply. Contact the Audi Technical Assistance Center (TAC) for further instruction.

Production Solution
Software improvement with more robust onboard diagnostics.

Service
• Update the software by following the SVM Update Instructions below.
• Do not replace any parts for these fault codes unless directed to do so by GFF.
• Do not contact TAC unless the problem persists after the software update or if there is a problem with the SVM
process.

© 2015 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
SVM Update Instructions
1. Follow all instructions in the TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the engine control module (ECM), J623 (address word 01), using the SVM action code as listed in the
table below if necessary.

Model

Engine

Old Software
Part Number

Old Software
Version

New Software
Part Number

New
Software
Version

SVM Code
Input

(or higher)
Q5 TDI

CPNB

8K5907401J

< 0005

8K5907401J

0005

01A209

Q5 TDI

CPNB

8K5907401S

*

8K5907401AC

0002

01A209

A6/A7 TDI

CPNB

4G0907401N

< 0005

4G0907401N

0005

01A209

A6/A7 TDI

CPNB

4G0907401T

*

4G0907401AA

0002

01A209

A8 TDI

CPNA

4H0907401F

< 0009

4H0907401F

0009

01A209

A8 TDI

CPNB

4H0907401K

*

4H0907401N

0002

01A209

Warranty
Claim Type:

Use applicable claim type. If vehicle is outside any warranty, this Technical Service
Bulletin is informational only.

Service Number:

2360

Damage Code:

0039

Labor Operations:

Connect battery charger and perform software
update with SVM

2360 2599

50 TU

Diagnostic Time:

GFF

0150 0000

20 TU

Road test prior to service procedure

No allowance

0 TU

Road test after service procedure

0121 0004

10 TU

Technical diagnosis at dealer’s discretion
(Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details)
Claim Comment:

© 2015 Audi of America, Inc.

As per TSB #2040962/1

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
Additional Information
All parts and service references provided in this TSB (2040962) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.

© 2015 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.