01 MIL on, DTCs P20E900 or P20FE00 stored in ECM
01 19 12 2034359/8 March 15, 2019. Supersedes Technical Service Bulletin Group 01 number 19-05 dated
February 13, 2019 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

Q7

2012 - 2015

All

TDI

Condition
REVISION HISTORY
Revision

Date

Purpose

8

-

Revised Required Parts and Tools (Updated AdBlue)

7

02/13/2019

Revised Service (Updated Step 4)
Revised Warranty (Updated Labor Operation)
Revised Additional Information (Updated)

6

10/03/2018

Revised Warranty (Updated Labor Operation)
Revised Required Parts and Tools (Added AdBlue)

Customer states:
 MIL on.
Workshop findings:
One of the following DTCs is stored in the engine control module (ECM), J623 (address word 0001):
 DTC P20E900 (Reductant pressure too high).
 DTC P20FE00 (Reductant metering unit performance).

Technical Background
In vehicles produced during a certain period, the AdBlue filter seal within the level sensor module may have been
damaged during the assembly process or the AdBlue filter housing may come loose over time. This can allow
unfiltered AdBlue to be drawn into the delivery system, subsequently damaging the pressure sensor and reducing
agent pump V437.

Production Solution
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© 2019 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
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.

Vehicle out of production. Service solution is an improved level sensor module.

Service
1. In cases with the above fault codes, remove the active tank according to instructions in the Elsa Repair
Manual.
2. Remove the G684 Reducing Agent Tank level sensor.
3. Inspect the reducing agent filter housing which should be
clipped to the G684 level sensor module. If the filter housing is
loose (see Figure 1 and Figure 2), then the G684 level sensor
AND the V437 reducing agent pump must be replaced.

Figure 1. Filter element housing is loose
inside the tank.

Page 2 of 5
© 2019 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
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.

Figure 2. Filter element housing is loose
inside the tank.
4. If the filter is properly secured, then only replace the V437 reducing agent pump.
5. Top off AdBlue level when repairs are complete.

Warranty
Claim Type:

 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 G14 – Verify Coverage in ElsaPro.
 If the vehicle is outside any warranty, this Technical Service Bulletin is informational
only.

Service Number:

2682

Damage Code:

0050

Labor Operations:

Reductive agent container remove + reinstall

2681 1900

See SRT

Reductive agent heating element level sensor
module remove + reinstall

2682 1999

30 TU

Page 3 of 5
© 2019 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
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.

Diagnostic Time:

Claim Comment:

Reductive agent supply module remove +
reinstall

2683 1950

See SRT

Reductive agent inspect + add

2688 3550

See SRT

GFF

0150 0000

Time stated on
diagnostic
protocol (Max 20
TU)

Road test prior to the service procedure

No allowance

0 TU

Road test after the service procedure

No allowance

0 TU

As per TSB #2034359/8

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

Quantity

4L0131907D

Storage Unit (G684 level sensor module)

01 (If applicable)

4L0131899M

V437 Pump for reduction agent

01 (If applicable)

GUS052910A3

AdBlue

As needed (Max 2.3)

See ETKA

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

See ETKA/ELSA

Additional Information
All parts and service references provided in this TSB (2034359) are subject to change and/or removal.
©2019 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.

Page 4 of 5
© 2019 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
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.

Page 5 of 5
© 2019 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
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.