Technical Service Bulletin
20 MIL on - P310B00 - Low fuel pressure regulation, fuel pressure outside of tolerance - symptom 2638
20 24 68 2070281/3 March 29, 2024. Supersedes Technical Service Bulletin Group 20 number 23-63 dated
November 22, 2023 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

SQ7, SQ8, and
RS Q8

2020 - 2023

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

3

-

Revised Required Parts and Tools (Added part number)
Revised Service (Added hardware part number)

2

11/22/2023

Revised Condition (Updated Workshop findings)
Revised Technical Background (Added clarifying verbiage)
Revised Service (Added SVM table)
Revised Warranty (Updated Labor Operations)
Revised Required Parts and Tools (Added part number)

1

08/25/2023

Initial publication

Customer states:
• The MIL is illuminated.
Workshop findings:
The following DTC may be stored in the ECM -J623- (address word 1000):
• P310B00 Low fuel pressure regulation, fuel pressure outside of tolerance with Symptom code: 2638.

Technical Background
Lowside fuel pressure is above upper tolerance when looking at environmental conditions of the DTC.

© 2024 Audi of America, Inc.
Internal

Page 1 of 4

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
Production Solution
New software implemented in Q1 2023.

Service
This TSB only applies if the DTC “P310B00: Low fuel pressure regulation, fuel pressure outside of tolerance”
with symptom 2638 is set in the ECM -J623- (address word 0001). It does not apply to any other symptom
codes.
If the vehicle has the following part numbers, please use the SVM code, it is not necessary to replace the
electric fuel pump.

Model

Old Software

Old Software

New Software New Software SVM Code

Part Number

Version

Part Number

Version

(or higher)

(or higher)

SQ7 and SQ8

4M0 906 014 B

RS Q8

4M8 907 557 F

0001

4M0 906 014 B 0003
4M8 907 557 F

0002

Input

01A255

If the vehicles ECM software is not listed above, please perform the following.

Please check the fuel pressure sender for low-pressure G410 for plausibility using GFF MVBs. If the values
are plausible, do not replace the sender (G410). Please replace the electric fuel pump.

If the DTC P310B00 with symptom number 2638 is stored, first order fuel pump (36A.919.087.P) if this pump
is not in stock, please order the standard pump according to ETKA.

Warranty
Claim Type:

• 110 Up to 48 Months/50,000 Miles.
• G10 for CPO Covered Vehicles – Verify Owner.

© 2024 Audi of America, Inc.
Internal

Page 2 of 4

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
• If the vehicle is outside of any warranty, this Technical Service Bulletin is
informational only.
Service Number:

2066

Damage Code:

0010

Labor

Replace fuel pump

2066 1950

Operations:

See SRT with
associated
operations

Software update

0151 0000

See SRT with
associated
operations
(Max 80 TU)

Diagnostic Time:

GFF – Checking and clearing fault codes

0150 0000

included in existing labor operations

Time stated on
the diagnostic
protocol
(Max 50 TU)

Road test prior to service procedure

No

0 TU

Allowance
Road test after service procedure

No

0 TU

Allowance
Claim Comment:

As per TSB 2070281/3

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
Always check with your Parts Department and/or ETKA for the latest information and parts bulletins.
Part Number

Part Description

© 2024 Audi of America, Inc.
Internal

Quantity

Page 3 of 4

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
See ETKA

36A919087P

Fasteners, Bolts, Nuts, and Screws as needed per the Repair

See

Manual

ETKA/ELSA

Fuel Pump Module

01

4M0919087BP Fuel Pump Module (if the above pump is not available)

01

Additional Information
All parts and service references provided in this TSB (2070281) are subject to change and/or removal.
©2024 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.

© 2024 Audi of America, Inc.
Internal

Page 4 of 4

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.