97 Fuel gauge does not work
97 19 65 2056234/1 September 23, 2019.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A8

2018 - 2020

All

Not Applicable

Condition
Customer states:
 The fuel gauge does not read full after refueling.
Or
 The fuel gauge reads empty.
Workshop findings:
One or more of the following DTCs is stored as intermittent or static in the comfort system central control module,
J393 (address word 0046):
 DTC B103E1A (Fuel gauge sensor 1 Resistance too low).
 DTC B103E1B (Fuel gauge sensor 1 Resistance too high).
 DTC B10581A (Fuel gauge sensor 2 Resistance too low).
 DTC B10581B (Fuel gauge sensor 2 Resistance too high).
 DTC B117A1A (Fuel gauge sensor 4 Resistance too low).
 DTC B117A1B (Fuel gauge sensor 4 Resistance too high).

Page 1 of 6
© 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.

Technical Background
The wiring of the fuel tank
senders can rub through on
the service opening for the
fuel tank.
If one or more of the above
DTCs are stored, open the
service cover under the rear
seat bench. Inspect the fuel
tank wiring harness near the
body flange (Figure 1). If the
insulation is damaged, repair
using the steps below.
If no damage is found,
continue with standard
diagnosis.

Figure 1. Location to inspect for rub through.

Production Solution
Improved harness routing and addition of abrasion resistant tape in production.

Page 2 of 6
© 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.

Service
1.

Remove the trim of the fuel pump control unit from the underbody of the vehicle.

2.

Disconnect all connectors from the tank wiring harness.

3.

Loosen the harness clip from the
retaining strap of the tank so that
the wiring harness can be pulled
upwards through the service
opening (Figure 2).

Figure 2. The arrow points towards the harness clip to be removed.
4.

Remove the rear seat bench.

5.

Open the service cover and disconnect the connectors for the fuel pump and the tank senders.

6.

Carefully pull the wiring harness upwards out of the service opening. After sufficient clearance is gained,
repair the damaged wiring harness with crimp connector 000 979 940. Ensure a watertight repair to the
harness is made.
Tip: The harness clip (Figure 2) has to be removed from the tank to gain enough clearance for the
repair. This harness clip does not need to be replaced for the repair however it will need to be refit after the
repairs are made.

7.

Wrap 20 cm of textile adhesive tape (D 004350A2) around the wiring harness in the area of the body
flange.

Page 3 of 6
© 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.

8.

Attach self-adhesive foam pad
(443201365B, 100x100x6mm). Cut
the pad into two equal sections
measuring 50x100mm. Attach one
section to the underside of the
body flange (Figure 3, A).

Figure 3, A and 3, B. Section A and B are attached to the topside of
the tank and the bottom side of the body to prevent further rubbing of
the harness.
9.

Attach the other half to the top side of the fuel tank so that the wiring harness will not rub through on any
components (Figure 3, B).

10.

Refit the wiring harness and plug in the connections for the fuel pump and tank sensor.

11.

Reconnect the cables to the fuel pump control module.

12.

Secure the wiring harness to the welding stud of the tank strap with the harness clip. Ensure that the wiring
harness is at least 1cm away from the tank strap.

13.

Reassemble the vehicle, however, before closing the service cover check the wiring harness again for
correct routing.

Page 4 of 6
© 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
Claim Type:

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

Service Number:

9725

Damage Code:

0025

Labor Operations:

Remove and install rear cover

5194 1900

See SRT

Remove and install rear seat bench

7249 1900

See SRT

OR

Or

Remove and install single rear right seat

7248 1907

Remove and install rear wiring harness

9725 1999

Diagnostic Time:

Claim Comment:

40 TU

Repair wiring loom (depends on number of faulty 9709 41xx
cables)

See SRT

GFF

0150 0000

Time stated on
the diagnostic
protocol (Max
100 TU)

Road test prior to the service procedure

No allowance

0 TU

Road test after the service procedure

0121 0004

10 TU

As per TSB #2056234/1

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

D 004 350 A2

Textile adhesive tape

20cm needed

Page 5 of 6
© 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.

443 201 365 B

Foam pad

1

000 979 940

Crimp connector

As needed

Tool Number

Tool Description

VAS1978B

Wiring Harness Repair Set

VAS 61XX

ODIS Service with VAS tester

Additional Information
All parts and service references provided in this TSB (2056234) 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 6 of 6
© 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.