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NHTSA ID Number: 10201544

Manufacturer Communication Number: A6021552056944_7

TSB/Document Date: 2021-10-05


Summary

This bulletin contains repair instructions for when the customer sees water drip from the headliner area.


60 Water entry into cabin from the sunroof area
60 21 55 2056944/7 September 22, 2021. Supersedes Technical Service Bulletin Group 60 number 21-50 dated
March 2, 2021 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

AudieBay logo e-tron
sportback

2020 - 2021

All

Not Applicable

Q3, Q8, and
AudieBay logo e-tron
quattro

2019 - 2021

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

7

-

Revised Warranty (Added Labor Operation for plenum cover remove & reinstall
and updated SRTs)

6

03/02/2021

Revised Technical Background (Clarified possible problem and updated drain
hose check)
Revised Production Solution (Clarification of desired action)
Revised Service (Added Note regarding unnecessary part replacement)
Revised Warranty (Added specific labor operations for all checks)

5

11/03/2020

Revised Service (Modified work procedure)
Revised Warranty (Added Labor Operation)

Page 1 of 16
© 2021 AudieBay logo 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 AudieBay logo 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.

Customer states:
 They see a water drip from the
headliner area (Figure 1).

Figure 1. Water intrusion near the headliner.

Technical Background
One or a combination of the following four possible scenarios may be present. All of the following areas of the
sunroof system will need to be inspected as possible root causes, and if applicable, each may need to be
modified or corrected.
1. Sunroof drain hose or outlet valve:
Using the VAS6620 Sunroof Drain Snake follow the
cleaning procedure for the sunroof water drain
hoses as described in ElsaPro. Any possible
obstruction other than debris cleared by this
procedure will be apparent after this check such as
a kinked or pinched drain hose (Figure 2).

Figure 2. Sunroof drain hose pinched by pillar trim.

Page 2 of 16
© 2021 AudieBay logo 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 AudieBay logo 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.

2. Roof opening seal:
Inspect the entire perimeter of the roof opening seal
for any possible detachment or malformation
(Figure 3).

Figure 3. Detached and malformed roof opening seal.

Page 3 of 16
© 2021 AudieBay logo 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 AudieBay logo 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.

3. Glass sunroof panels:
Check all adjustment axes of the sunroof glass
panels for poor adjustment (Figure 4).

Figure 4. Front and rear glass panel adjustment.
4. Unexplained or unduplicated water entry:
When the vehicle is exposed to water (rain, car wash, or standing water on the roof panel) either with the
vehicle stationary or driving it is possible for water to enter the sunroof frame, breach the normal water
drainage channeling, and leak into the cabin area, particularly if the sunroof is opened or vented when the
vehicle is wet.

Page 4 of 16
© 2021 AudieBay logo 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 AudieBay logo 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.

Any possible water drip may not appear until after a
driving period when the water travels to the
underside of the headliner area during the normal
course of driving (Figures 5-7). This may occur due
to a slow migration of water along the wind deflector
hinge arms and potential water entry into the
stowage area for the wind deflector. This stowage
area does not provide water drainage away from
the vehicle.

Figure 5. Front sunroof opening with drainage
exposed.

Figure 6. Areas of sunroof opening water elimination
capabilities.

Page 5 of 16
© 2021 AudieBay logo 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 AudieBay logo 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 7. Sunroof water channeling diagram.

Production Solution
Solutions have been implemented in production.

Service
The instructions that follow are service solutions that, when performed accurately and completely, are effective
in stopping water intrusion and help to avoid unnecessary parts replacements and repeat repairs. All of the
possible root causes described here will need to be fully addressed and any necessary repairs completed prior
to releasing the vehicle.
1.

Sunroof drain hose or outlet valve:
Ensure that any water in the sunroof frame drainage areas flows freely after the cleaning procedure. If any
obstruction is due to a pinched or kinked drain hose the damaged drain hose(s) or valve(s) must be
replaced.

2.

Roof opening seal:
If after inspecting the roof opening seal any detachment, malformation or damage is discovered, replace the
sunroof opening seal.

3.

Glass sunroof panels:
If after all dimensional measurements are made on the sunroof glass panels an issue is found make the
necessary adjustments to the sunroof glass panels.

Page 6 of 16
© 2021 AudieBay logo 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 AudieBay logo 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.

Water entry for what appears to be through the sunroof frame:
It is not necessary to replace the sunroof frame unless there is damage found (e.g. crack in the drainage
structure, hole in the drainage structure). If damage to the sunroof frame is found, clearly mark the area of
damage. Sunroof frames replaced for damage will be requested for return to AoA for analysis.
Note:

In analysis a complete leak test of the sunroof frame will be conducted. If the results of this test reveal no water
leak in the sunroof frame including the area marked as damaged the sunroof frame will be returned and the
claim for the frame replacement debited. If no damage to the sunroof frame structure is found, then proceed as
follows.
5.

Open the front sunroof panel
completely and locate the
mounting points for the sunroof
wind deflector (Figure 8).

Figure 8. Locating points for the sunroof wind deflector.
6.

There has been a design change
to the wind deflector to enhance
the water flow and drainage in the
event the wind deflector gets wet.
Inspect the area of the wind
deflector shown (Figure 9). The
redesigned wind deflector has
small tabs cast into the deflector
structure on both sides. If the
wind deflector does not have
these tabs replace the wind
deflector. Make certain that the
replacement wind deflector
contains these tabs before
installation. With the redesigned
wind deflector installed, proceed
Figure 9. Tabs cast into the redesigned wind deflector.
as follows.

Page 7 of 16
© 2021 AudieBay logo 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 AudieBay logo 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.

Using a primer applicator D 009
500 25 (or equivalent) and D 009
401 04 all purpose cleaner (or
equivalent) thoroughly clean the
area shown (Figure 10). It should
be free of any lubricant or
contaminants and completely dry. Figure 10. Area of sunroof frame to be cleaned.

8.

Cut two 25mm strips of AKL 450
005 05 Butyl adhesive/sealing
cord. Firmly press each strip into
the groove shown (Figure 11).
Both channels shown in the cut
away must be completely filled
with the butyl cord.

Figure 11. Preparation and application of butyl cord.
9.

Next, a modification will be made
to the sunroof glass panel (Figure
12) by bonding two small pads to
the front corners just inside the
rubber ‘skirt’. The purpose of this
modification is to create a gap
between the ‘skirt’ and the
sunroof mechanism beside it, and
as a result, prevent water from
making contact with the sunroof
mechanism and possibly
breaching the water channels.
Figure 12. Area of sunroof glass panel to be modified.

10. Clean the inside surface of the
glass panel ‘skirt’ using D 009 401
04 all purpose cleaner (or
equivalent) and a clean dry cloth
as shown (Figure 13).
Figure 13. Area of glass panel ‘skirt’ to be cleaned and dried.

Page 8 of 16
© 2021 AudieBay logo 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 AudieBay logo 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.

11. Apply D 355 205 A2 Bonding
Agent using a primer applicator D
009 500 25 (or equivalent). Allow
bonding agent to thoroughly dry
(Figure 14).
Figure 14. Area of glass panel ‘skirt’ where bonding agent is to be
applied.
12. Using 251 201 525 packing cut 2
x 10mm x 10mm pads (Figure
15).

Figure 15. Preparing 2 – 10mm x 10mm pads of 251 201 525 packing.
13. Bond each pad to the front areas
of the sunroof glass panel ‘skirt’
as shown in figure 15. A cut away
drawing is included to illustrate
the precise positioning of each
pad from the inside (Figure 16).

Figure 16. Positioning and application of the 10mm x 10mm pads.

Page 9 of 16
© 2021 AudieBay logo 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 AudieBay logo 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.

14. Using a 3356 roller tool (or
equivalent), apply firm pressure
(~50 Nm) to the newly adhered
pads to enhance the strength of
adhesion (Figure 17).

Figure 17. Applying pressure to bonded area with 3356 roller (or
equivalent).

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:

6039

Damage Code:

0050

Labor Operations:

Sunroof water drains:
Sunroof water drains check

6048 0250 (Q8, AudieBay logo e-tron See SRT with
associated
quattro, and AudieBay logo e-tron
operations
sportback)

Sunroof water drains check

6048 0251 (Q3)

See SRT with
associated
operations

Should sunroof drain hose replacement be necessary:

12

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TSB/Document ID: A6021552056944_7

Replacement Service Bulletin Number:

MFR Communication Date: 2021-09-21

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: STRUCTURE

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