A011913 20353688

01 MIL on, DTC P203B00 stored in the ECM - TDI only
01 19 13 2035368/8 March 15, 2019. Supersedes Technical Service Bulletin Group 01 number 18-90 dated
October 31, 2018 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A8
2013 - 2014
All
TDI
A6, A7, and
Q5
2014 - 2016
All
TDI
Condition
REVISION HISTORY
Revision
Date
Purpose
8
-
Revised Warranty (Added Claim Type)
Revised Required Parts and Tools (Updated Part Number)
7
10/31/2018
Revised title
Revised Service (Updated Step 3 and Figure 1)
Revised Warranty (Updated Labor Operations)
Revised Required Parts and Tools (Added Seal)
6
06/12/2018
Revised title
Revised Service (Added Note)
Revised Warranty (Updated Labor Operations and added Claim Types)
Customer states:
 MIL on.
Workshop findings:
The following DTC is stored in the engine control module (ECM), J623 (address word 0001):
 DTC P203B00 (Reductant Level Sensor Circuit Range/Performance).
Technical Background
Diagnostic software in the control module for reduction agent metering system, J880 (address word 00AC), has
been optimized to avoid this fault. In some cases, the AdBlue level sensor may still require replacement.
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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.
Production Solution
Improved level sensor and level sensor diagnostics.
Service
Update the parameters:
1. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the parameters of the control module for reduction agent metering system, J880 (address code
00AC), using SVM code ACA001.
3. If the fault code P203B00 is stored with the
symptom code (DFCC) 65540 or 65541 (Figure
1), replace the reduction agent level sensor
(delivery unit) in addition to updating the
parameters. Follow the instructions in the Elsa
Repair Manual (Engine >> 6-cylinder TDI
Common Rail Engine (Gen II) >> 26 Exhaust
System, Emission Controls, Selective Catalytic
Reduction System).
Note:
If the DTC and symptom code are
not stored in the ECM exactly as in
Step 3, no part should be replaced.
Figure 1. Location of symptom code.
Note:
This symptom code does not apply to Step 3.
Do not contact TAC unless the problem persists after the software/hardware update or if there is a problem with
the SVM process.
Page 2 of 4
© 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.
Warranty
 110 up to 48 Months/50,000 Miles.
Claim Type:
 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:
2683
Damage Code:
0040
Labor Operations: Reductive agent tank remove + reinstall
Diagnostic Time:
2681 1900
See SRT
Reductive agent supply module remove + reinstall
2683 1950
See SRT
Reductive agent inspect + add
2688 3550
See SRT
Software update
2360 2599
50 TU
GFF
0150 0000
Time stated
on diagnostic
protocol (Max
80 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 #2035368/8
Claim Comment:
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
GUS052910A3
AdBlue
As needed (Max 2.3)
4G0131969E
A6/A7/A8 Delivery unit for reduction agent metering system
01
8R0131969D
Q5 Delivery module for urea solution AdBlue
01
Page 3 of 4
© 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.
4G0131357
Seal
01
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 (2035368) 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 4
© 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.