A201802

PSS 20 Fuel gauge does not show full after filling up tank
20 18 02 2051100/1 May 2, 2018.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A8
2016 - 2018
All
Not Applicable
Condition
Customer states:
 Fuel gauge does not show full after filling up, it
only shows 5/8ths of a tank (Figure 1).
 Fuel gauge shows correct level after a short
delay.
 Fuel gauge only shows full after driving for a
short distance.
 MIL may be illuminated.
Figure 1. Only shows 5/8ths of a tank instead of full.
Workshop findings:
 One or more of the customer statements can be reproduced.
 If DTC P046100 is found in the ECM, check and update if necessary using TSB 2043357: “20 MIL on (DTC
P046100 - Fuel level sensor, circuit range/performance)”. If any other DTCs are found proceed with GFF and
repairs.
 If the customer’s concern included fuel gauge only showing 5/8ths after filling fuel tank, add VIN to PSS and
postpone repairs.
Technical Background
Delayed response from fuel gauge sensor 3 (G237).
Page 1 of 2
© 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.
Production Solution
Not applicable.
Service
1.
Diagnose the vehicle according to the instructions listed below. If customer’s vehicle condition matches the
condition listed in the Technical Background of this PSS TSB, explain to the customer that a solution is
forthcoming and that no repairs are necessary at this point.
2.
Do not replace any components for this condition since this will not resolve the customer’s concern.
3.
Create a PSS record in the PSS application through the Pending Service Solutions (PSS) link in
AccessAudi (under Related Links >> Service), or through the Technical Assistance Page in Elsa.
Warranty
This TSB is informational only and not applicable to any Audi Warranty.
Additional Information
The following Technical Service Bulletin(s) will be necessary to complete this procedure:
 TSB 2043357, 20 MIL on (DTC P046100 - Fuel level sensor, circuit range/performance).
All parts and service references provided in this TSB (2051100) are subject to change and/or removal. Always
check with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the
Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
©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 2 of 2
© 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.