Technical Service Bulletin
01 MIL on (DTC P01C900 and P008800 - fuel rail pressure too high); noises from engine compartment
01 14 61 2035235/2 January 23, 2014. Supersedes Technical Service Bulletin Group 01 number 13-36 dated
October 9, 2013 for reasons listed below.

Model(s)

Year

VIN Range

Vehicle-Specific Equipment

S6, S7

2013

All

4.0T

A8, S8

2013 - 2014

All

4.0T

Condition
REVISION HISTORY
Revision

Date

Purpose

2

-

Revised header data (Removed MY14 S6 and S7)
Revised Service (Updated SVM table)

1

10/9/2013

Initial publication

• The customer reports that the engine warning light illuminates sporadically (Figure 1).
• The engine may have reduced performance without significant loss of power or stalling.
• Noise is heard coming from the engine compartment, specifically from the High Pressure
Fuel Pumps 2.

Figure 1. Engine
warning light.

• The following DTCs are stored in the engine control module (ECM), J623 (address word
01):
• DTC P008800 (fuel, rail/system pressure too high)
• DTC P01C900 (fuel, rail/system pressure bank 2 too high)

Technical Background
The fuel metering valve of the high-pressure fuel pump is controlled by a specific on/off ratio. If there is a low
system voltage, the on/off ratio may not be enough to keep the fuel metering valve constant in all areas. In such a
situation, the fuel metering valve is deactivated and the high-pressure fuel pump switches to full supply mode.
Because the increased rail pressure does not match the respective driving situation, the DTC appears.

Production Solution
ECM software update.

© 2014 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
Service
SVM Update Instructions
1. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the ECM software using the SVM action code as listed in the table below if necessary.

Old
Software
Version

New Software
Part Number

New Software
Version
(or higher)

SVM
Action
Code

Model

Engine

Old Software
Part Number

S6/S7 (MY 13)

4.0T CEUC

4G0906014B

0006

4G0906014B

0007

01A148

A8 (MY13)

4.0T CEUA

4H0906014B

0003

4H0906014L

0003

01A148

S8 (MY13)

4.0T CGTA

4H0907557B

0004

4H0907557E

0002

01A148

A8 (MY14)

4.0T CEUA

4H0906014L

0002

4H0906014L

0003

01A148

S8 (MY14)

4.0T CGTA

4H0907557E

0001

4H0907557E

0002

01A148

Warranty
Service Number:

2470

Damage Code:

0039

Labor Operations: Update ECM software by SVM

2470 2599

40 TU

Diagnostic Time:

GFF

0150 0000

10 TU

Road test prior to service procedure

No allowance

0 TU

Road test after service procedure

No allowance

0 TU

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

As per TSB # 2035235/2

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.

Required Parts and Tools
Approved battery charger.

© 2014 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
Additional Information
The following Technical Service Bulletin 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 (2035235) are subject to change and/or removal. Always
check with your Parts Dept. and service manuals for the latest information.

© 2014 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.