20 MIL on, DTC P045600 stored in the ECM
20 19 16 2035073/14 May 24, 2019. Supersedes Technical Service Bulletin Group 20 number 19-13 dated April
11, 2019 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A3 Sedan

2015

000001 – 122823

With NVLD

A3 Cabriolet

2015

000001 – 122834

With NVLD

A3 Sedan

2015

000001 – 122823

With NVLD

A4, A4
Cabriolet

2015

A4 allroad

2015

000001 – 110433

With NVLD

A5 Coupe

2015

000001 - 048917

With NVLD

A5 Cabriolet

2015

000001 – 008878

With NVLD

RS 5 Coupe

2013

900001 - 999999

With NVLD

RS 5 Coupe

2014

900001 - 999999

With NVLD

RS 5 Coupe

2015

900001 - 901489

With NVLD

RS 7

2016

900001 – 900125

With NVLD

A8

2011 - 2014

All

With NVLD

A8

2015

000001 – 033269

With NVLD

A6, A7

2016

000001 – 009518

With NVLD

A6, A7, and
RS 7

2012 - 2015

All

With NVLD

A4, A4
allroad, A5,
A5
Cabriolet,
RS 5, and
Q5

2013 - 2014

All

With NVLD

Q5

2015

A900001 – A106622
N000001 – N033839

000001 – 109552

With NVLD

With NVLD

000001 - 111804

Page 1 of 8
© 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.

Condition
REVISION HISTORY
Revision

Date

Purpose

14

-

Revised header data (Added VIN breaks)

13

04/11/2019

Revised title
Revised Warranty (Added Labor Operation)

12

10/29/2015

Revised header data (Corrected Elsa display error)

Customer states:
 MIL on.
Workshop findings:
The following DTC is stored in the engine control module (ECM), J623 (address word 0001):
 DTC P045600 (EVAP System Leak Detected NVLD (very small leak)).
 Drivability is not affected.

Technical Background
The NVLD pressure switch may erroneously detect a very small leak.

Production Solution
New NVLD pressure switches and NVLD filters in production.

Service
1. Ensure that DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine
control module (ECM), J623 (address word 0001). If DTC P045600 is not present, this bulletin does not
apply.
2. Replace the NVLD pressure sensor G400 and the NVLD filter with the latest part number available (Figure
1).

Page 2 of 8
© 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 1. NVLD pressure sensor (left) and NVLD filter (right).
Note:
Read the following information for correct installation of the NVLD switch grommet. The following information
applies only if the sensor is directly installed into the charcoal canister.
3. Align the grommet and sensor outer
edges (Figure 2).

Figure 2. Align the grommet and sensor outer edges.

Page 3 of 8
© 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.

4. To aid installation, wrap several (~10)
layers of vinyl tape behind the grommet
to ensure that it does not slip during
installation (Figure 3 and Figure 4).

Figure 3. Wrapping vinyl tape behind the grommet.

Figure 4. Vinyl layer supporting grommet.

Page 4 of 8
© 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.

5. Apply a small amount of grease to create
a film on the outer surface of the
grommet before installing the sensor
(Figure 5).

Figure 5. Grease film on the outer surface of the grommet.
6. When the sensor and grommet have
been correctly installed, the grommet
and canister will be flush (Figure 6). At
this point, the vinyl tape can be removed
(or it can be left in place).

Figure 6. Correctly-installed sensor and grommet.

Page 5 of 8
© 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.

7. An incorrectly-installed sensor and
grommet (Figure 7) can cause an EVAP
leak and repeat failures. Issues can
occur when the NVLD switch is pressed
too far into the canister, then pulled back
out in an attempt to align the NVLD
switch with the mounting holes.
Do not apply any lubricant between the
sensor and the grommet.

Figure 7. Plastic port extending past the grommet (A) causing
installation issues (B).
Note:
Due to the functionality of the new tank leak diagnostic system (NVLD), it is not possible to check the system
using a basic setting or an output diagnostic test mode like the previously-used LDP system.
Note:
Always use a VIN to search parts in ETKA.

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:

2041

Damage Code:

0040

Labor Operations:

For A3 and A3 Cabriolet:
NVLD pressure switch remove + reinstall

2041 1950

See SRT

Rear wheel housing liner remove + reinstall

6676 1900

See SRT

2041 1950

See SRT

For A4, A5, and A5 Cabriolet:
NVLD pressure switch remove + reinstall

Page 6 of 8
© 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.

Activated charcoal filter remove + reinstall

2025 1910

See SRT

Rear wheel housing liner remove + reinstall
(includes time for filter replacement)

6676 1999

40 TU

NVLD pressure switch remove + reinstall

2041 1950

See SRT

Activated charcoal filter remove + reinstall

2025 1900

See SRT

Rear wheel housing liner remove + reinstall
(includes time for filter replacement)

6676 1999

40 TU

NVLD pressure switch remove + reinstall

2041 1950

See SRT

Activated charcoal filter remove + reinstall

2025 1910

See SRT

Rear wheel housing liner remove + reinstall
(includes time for filter replacement)

6676 1999

40 TU

NVLD pressure switch remove + reinstall

2041 1950

See SRT

Activated charcoal filter remove + reinstall

2025 1900

See SRT

Wheel remove + reinstall

4405 1900

See SRT

GFF – Checking and clearing fault codes
included in existing labor operations

0150 0000

Time stated on the
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

For A6 and A7:

For Q5 and Q5 hybrid:

For A8:

Diagnostic Time:

Claim Comment:

As per TSB #2035073/14

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 7 of 8
© 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.

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

5Q0906253B or 5Q0906253C (For A3
sedan) (Backwards-compatible for all A3
sedans)

Pressure switch

01

8K0906253K (For A8, Q5 hybrid, and

Pressure switch

01

8K0906253L (For A4, A5, A5 Cabriolet,
Q5, A6, and A7)

Pressure switch

01

1C0906621A (For A3 sedan and A3
Cabriolet)

Filter

01

8R0906621E (For A8)

Filter

01

8F0201997D (For A5 Cab)

Filter

01

8R0201997T (For Q5)

Filter

01

8R0906621F (For Q5 hybrid)

Filter

01

4G0201997BA (For A6 and A7)

Filter

01

8K0201997AL (For A4 and A5)

Filter

01

See ETKA

Fasteners, Bolts, Nuts, and Screws as needed per See
the Repair Manual
ETKA/ELSA

A3 Cabriolet)

Additional Information
All parts and service references provided in this TSB (2035073) 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 8 of 8
© 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.