26 13 17 2027945

Technical Service Bulletin
26 Noises from rear silencer
26 13 17 2027945/3 May 15, 2013. Supersedes Technical Service Bulletin Group 26 number 12-12 dated August
16, 2012 for reasons listed below.
Model(s)
Year
A4
2009 - 2013
A5
2008 - 2013
A5 Cabriolet
2010 - 2013
VIN Range
Vehicle-Specific Equipment
All
Not applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
3
-
Revised header data (New customer codes)
2
8/16/2012
Revised header data (Added model year)
1
11/4/2011
Original publication
Humming or metallic rattling noise from under the vehicle, heard most consistently during engine idle or slow
acceleration. Initial inspection indicates that the noise is coming from the exhaust system.
Technical Background
Relative movements in the rear mounting of the exhaust system (rear silencer).
Production Solution
Not applicable.
© 2013 Audi of America, Inc.
Page 1 of 3
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
If the complaint clearly occurs in the portion of the exhaust shown below, reduce the tension on the exhaust
system:
1. Loosen the mount (Figure 1, A) at the rear of the exhaust system.
Figure 1. (A) Mount. (B) Tighten mount
with pliers.
2. Tighten the mount (Figure 1, A) while pressing it together with a pair of pliers (Figure 1, B).
© 2013 Audi of America, Inc.
Page 2 of 3
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:
2638
Damage Code:
0020
Labor Operations:
Adjust the exhaust system
2638 0999
30 TU
Diagnostic Time:
GFF
No allowance
0 TU
Road test prior to service procedure
0121 0002
10 TU
Road test after service procedure
0121 0004
10 TU
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 #2027945/3
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.
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.
© 2013 Audi of America, Inc.
Page 3 of 3
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.