A011877 2051053-

01 MIL on, DTC P24CC00 and/or P24CB00 stored in the ECM
01 18 77 2051053/2 June 12, 2018. Supersedes Technical Service Bulletin Group 01 number 18-71 dated May
16, 2018 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
Q7
2013 - 2015
All
TDI
Condition
REVISION HISTORY
Revision
Date
Purpose
2
-
Revised header data (Removed VIN break)
1
05/16/2018
Initial publication
Customer states:
 MIL on.
Workshop findings:
One or more of the following DTCs is stored in the engine control module (ECM), J623 (address word 0001):
 DTC P24CC00 (Reductant Tank Cap Switch Circuit Range Open).
 DTC P24CB00 (Reductant Tank Cap Switch Circuit).
No relevant component or electrical problems are found when Guided Fault Finding (GFF) is run on the stored
fault codes.
Technical Background
The reducing agent active tank cap switch is prone to sticking, especially in hot and humid climates. If the switch
sticks when vehicle is refilled with AdBlue, this fault will be triggered.
Production Solution
Vehicle is out of production, improved part as a service solution.
Page 1 of 3
© 2018 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.
Service
1. Remove active tank according to instructions in the Elsa Repair Manual.
2. Replace cap microswitch located on active tank filler neck with improved part 4L0133093B. Reinstall active
tank according to instructions in the Elsa Repair Manual.
Warranty
Claim Type:
 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If vehicle is outside any warranty, this Technical Service Bulletin is informational
only.
Service Number:
2681
Damage Code:
0050
Labor Operations:
Reductive agent container remove + reinstall
2681 1900
120 TU
Reductive agent inspected + added
2688 3500
20 TU
Replace active tank cap switch
2681 1999
20 TU
GFF
0150 0000
Time stated on
diagnostic
protocol (Max 20
TU)
Road test prior to service procedure
No allowance
0 TU
Road test after service procedure
No allowance
0 TU
Diagnostic Time:
Claim Comment:
As per TSB #2051053/2
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.
Page 2 of 3
© 2018 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.
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
4L0133093B
Active tank cap switch
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 (2051053) are subject to change and/or removal.
©2018 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 3 of 3
© 2018 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.