A201545 2035073-

Technical Service Bulletin
20 MIL on (DTC P045600 - EVAP system leak detected NVLD (very small leak))
20 15 45 2035073/8 May 6, 2015. Supersedes Technical Service Bulletin Group 20 number 14-43 dated
December 19, 2014 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A3
2015
All
Not Applicable
Q5, A4, A5,
A5 cabriolet
2013 - 2015
All
Not Applicable
A6. A7
2012 - 2015
All
Not Applicable
A8
2011 - 2015
All
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
8
-
Revised Production Solution (Added filter information)
Revised Service (Added instructions)
Revised Warranty (Updated Labor Operations)
Revised Required Parts and Tools (Added filter part numbers)
7
12/19/2014
Revised Required Parts and Tools (Updated A3 part number)
6
10/9/2014
Revised header data (Added model)
Revised Warranty (Added A3 labor operations)
Added Required Parts and Tools section
• MIL on.
• DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module
(ECM), J623 (address word 01).
• 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.
© 2015 Audi of America, Inc.
Page 1 of 6
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 Service Bulletin
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 01). 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).
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.
• Align grommet and sensor outer edges
(Figure 2).
Figure 2. Align grommet and sensor outer edges.
© 2015 Audi of America, Inc.
Page 2 of 6
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 Service Bulletin
• 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.
• 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 outer surface of grommet.
© 2015 Audi of America, Inc.
Page 3 of 6
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 Service Bulletin
• 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.
• 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.
© 2015 Audi of America, Inc.
Page 4 of 6
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 Service Bulletin
Warranty
Claim Type:
Use applicable claim type. If 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
20 TU
Rear wheel housing liner remove + reinstall
6676 1900
40 TU
NVLD pressure switch remove + reinstall
2041 1950
10 TU
Activated charcoal filter remove + reinstall
2025 1910
50 TU
NVLD pressure switch remove + reinstall
2041 1950
10 TU
Activated charcoal filter remove + reinstall
2025 1900
40 TU
NVLD pressure switch remove + reinstall
2041 1999
10 TU
Activated charcoal filter remove + reinstall
2025 1910
50 TU
NVLD pressure switch remove + reinstall
2041 1950
30 TU
Wheel remove + reinstall
4405 1900
20 TU
GFF – Checking and clearing fault codes included in
existing labor operations
0150 0000
Time stated on
diagnostic
protocol
(Max 20 TU)
For A4, A5, A5 cabriolet:
For A6 and A7:
For Q5 and Q5 hybrid:
For A8:
Diagnostic Time:
Technical diagnosis at dealer’s discretion
(Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details)
Claim Comment:
As per TSB #2035073/8
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.
© 2015 Audi of America, Inc.
Page 5 of 6
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 Service Bulletin
Required Parts and Tools
Part Number
Part Description
Quantity
5Q0906253B (For A3 sedan)
Pressure switch
1
Pressure switch
1
8K0906253J (For A4, A5, A5 cabriolet, Q5,
A6, and A7)
Pressure switch
1
1C0906621A (For A3 sedan and A3
cabriolet; not available in USA yet)
Filter
1
8R0906621E (For A8)
Filter
1
8F0201997D (For A5 cab)
Filter
1
8R0201997T (For Q5 and Q5 hybrid)
Filter
1
4G0201997BA (For A6,A7)
Filter
1
8K0201997AL (For A4,A5)
Filter
1
(Backwards-compatible for all A3 sedans)
8K0906253H (For A8, Q5 hybrid, and
A3 cabriolet)
Additional Information
All parts and service references provided in this TSB (2035073) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.
© 2015 Audi of America, Inc.
Page 6 of 6
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.