NHTSA ID Number: 10199213
Manufacturer Communication Number: A2021352043357_1
TSB/Document Date: 2021-08-04
Summary
This technical service bulletin provides a software code for correcting an issue that causes DTC P046100.
20 MIL on, DTC P046100 is stored in the ECM
20 21 35 2043357/12 July 7, 2021. Supersedes Technical Service Bulletin Group 20 number 19-18 dated June 6,
2019 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A3, S3
2015 - 2016
All
Not Applicable
A4, A5, A5
Cabriolet,
and Q5
2013 - 2016
All
2.0 TFSI
Q5
2013 – 2016
All
A8
2015 - 2017
All
3.0 TFSI
A6, A7, Q5,
SQ5, S4,
S5, and S5
Cabriolet
2014 – 2015
All
3.0 TFSI
RS 7
2014 - 2016
All
4.0 TFSI
S6, S7
2013 - 2016
All
4.0 TFSI
RS 5, RS 5
Cabriolet
2013 - 2015
All
4.2 TFSI
A8, S8
2013 - 2017
All
4.0 TFSI
Condition
REVISION HISTORY
Revision
Date
Purpose
12
-
Revised Service (Added Note and condensed table)
11
06/06/2019
Revised Condition (Removed Note)
Revised Service (Updated SVM table)
10
01/29/2019
Revised header (Added model)
Revised Service (Updated table)
Customer states:
MIL on.
Workshop findings:
The following DTC may be present in the engine control module (ECM), J623 (address word 0001):
Page 1 of 5
© 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
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publisher.
DTC P046100 (Fuel level sensor, circuit range/performance).
Technical Background
DTC P046100 can be caused by miscalculations within the ECM software when the vehicle is being filled with
gasoline while the ignition is on.
Production Solution
New ECM software implemented to correct the condition.
Service
Note:
Check the vehicle ECM software part number/version prior to the SVM update. If software has already
been updated, replace the respective fuel sensor only.
SVM Update Instructions
1. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the ECM, J623 (address word 0001) using the SVM action code as listed in the table below.
3. After SVM update, cycle the ignition.
4. Start the engine. If the engine runs rough and then surges, cycle the ignition once again.
5. Reset TPMS if necessary.
Note:
In case the latest software has already been flashed, or for software part numbers that are not listed here,
then replace the respective fuel sender.
Model
Engine
Old Software
Part Number
Old Software
Version
New Software
Part Number
New
Software
Version
A3
2.0 TFSI
5G0906259A
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TSB/Document ID: A2021352043357_1
Replacement Service Bulletin Number:
MFR Communication Date: 2021-07-07
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM:SOFTWARE
MFR Component System:
MFR Component Subsystem:
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