Technical Service Bulletin
87 Moisture in driver or front passenger footwell
87 12 34 2024644/5 November 9, 2012. Supersedes Technical Service Bulletin Group 87 number 12-31 dated
September 5, 2012 for reasons listed below.
Model(s)

Year

A4

2009-2013

A5

2008 - 2013

A5 Cabriolet

2010 - 2013

Q5

2009 - 2013

VIN Range

Vehicle-Specific Equipment

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

5

-

Revised header data (added model years)
Revised Technical Background and Service

4

9/5/2012

Revised header data

3

3/26/2012

Revised header data

2

3/31/2011

Revised Warranty

1

01/13/2011

Original publication

Moisture in the driver or front passenger foot well.

Technical Background
Due to a faulty and / or incorrectly installed condensation drain hose, condensation from the evaporator could
enter the front foot well areas through a gap between the body and the sealing surface of the drain hose.

Page 1 of 6
© 2012 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 Service Bulletin
Production Solution
Improved condensation drain hoses and improved installation process in production.

Service
1. Expose both condensation drain hoses and inspect for incorrect installation, kinks or
obstructions that could compromise proper removal of the condensation from the A/C
system water drain. Refer to ElsaWeb >> Heating, Ventilation and Air Conditioning >> 87

Air Conditioning >> Removal and Installation >> Condensation Water Drain Hose.
2. Inspect both drain hoses to identify if
they are incorrectly assembled. An
incorrectly assembled condensation
drain hose is one where the locating
tab is pointing up as seen in Figure
1. The correct orientation for this
locating tab should be pointing
down.

Figure 1. Incorrectly assembled drain hose, with
locating tab pointing up.

Page 2 of 6
© 2012 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 Service Bulletin
When the snap ring is installed
upside down, it allows condensation
to leak out through a hole at the
bottom of the snap ring (Figure
2). The water can then migrate into
either of the front footwell carpeted
areas.

Figure 2. Hole in snap ring.
3. Should the snap ring have been incorrectly installed to the body of the vehicle, do not
repair the condensation drain hose assembly. Replace the hose using the repair
procedure in ElsaWeb >> Heating, Ventilation and Air Conditioning >> 87 Air Conditioning

>> Removal and Installation >> Condensation Water Drain Hose. Improper installation at
the factory may have damaged the snap feature (opposite the locating tab), thus creating
a poor seal to the body.
Service parts have been checked,
but it is still possible to receive
unchecked parts. Corrected parts will
be marked in white on the locating
tab. This tab must be pointing down
(Figure 3).

Figure 3. White mark on locating tab.

Page 3 of 6
© 2012 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 Service Bulletin
4. If the locating tab on the new part is in the wrong position (pointing up), then use a small
set of needle nose pliers to gently pull the snap ring out of the rubber hose and align it in
the correct position (pointing down). Dipping the end of the hose in soapy water may make
the process easier.
5. Reinstall the snap ring in the correct
position indicated by Figure 4.

Figure 4. Snap ring installed in the correct position.
6. Connect the hose to the body before connecting it to the A/C system water drain. Insert
the locating tab (bottom of the hose) into the body hole and press the top portion of the
snap ring into place.
There should be an audible click to indicate the hose has made a firm connection.
7. Inspect the seal by gently tugging on the hose to ensure it is completely seated.
8. Connect the top of the hose to the A/C system water drain. Ensure that when installed
there is no kink or twist in the hose. If necessary, install a tie wrap at the A/C system
water drain end of the hose if a more secure connection is required.
9. Repeat for the other side.

Page 4 of 6
© 2012 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 Service Bulletin
Warranty
Claim Type:

Use applicable claim type. If vehicle is outside any warranty, this Technical Service
Bulletin is informational only.

Service Number:

8791

Damage Code:

0050

Labor Operations:

Remove and install 2 water drains

87 91 20 00

110 TU

Snap ring adjustment 2 water drains

87 91 99 99

10 TU

GFF

No allowance

0 TU

Road test prior to service procedure

No allowance

0 TU

Road test after service procedure

No allowance

0 TU

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 #2024644/5

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
Part Number

Part Description

Quantity

8K0 260 113 C

Water Drain Hose

2

Page 5 of 6
© 2012 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 Service Bulletin
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with
your Parts Department and service manuals for the latest information.

Page 6 of 6
© 2012 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.