A261630 2045720-

26 Vibrations between 1000 and 3000 rpm while driving
26 16 30 2045720/2 November 17, 2016. Supersedes Technical Service Bulletin Group 26 number 16-29 dated
October 25, 2016 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A8, S8
2013 - 2015
All
4.0 liter TFSI
A8
2016
000001 - 014321
4.0 liter TFSI
S8
2016
900001 - 900386
4.0 liter TFSI
Condition
REVISION HISTORY
Revision
Date
Purpose
2
-
Revised header data (VIN Information)
1
10/25/2016
Initial publication
Vibrations in the lower rev range at 1000 rpm as well as at 3000 rpm while driving. The vibrations are particularly
noticeable on the seat and the center arm rest.
Technical Background
With time the decoupling element of the front muffler fails to dampen the vibrations of the front exhaust pipe.
Production Solution
Optimized exhaust pipes with front muffler with dampening weight.
Page 1 of 4
© 2016 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.
Service
Before proceeding, attempt to verify the vibration concern by performing a test drive. During the test drive,
observe the vehicle in the following conditions:
 In 3rd or 4th gear (tip mode) between 2500 to 3200 rpm.
 Approximately 50% throttle input.
 If the condition cannot be reproduced, this bulletin does not apply.
 If the condition can be reproduced, follow the instructions list below.
Replace both exhaust pipes with front mufflers with the part numbers listed in ETKA with a VIN specific
search of the catalog. The new pipes will come with a shipping sleeve around the decoupling element
which needs to left on the element until the pipes are installed on the vehicle (Figure 1).
Figure 1. Dampening weight and shipping sleeve on decoupling element.
Note:
Danger of damaging the decoupling element:
 Decoupling element must not be bent more than 10 degrees.
 Do not damage wire mesh at decoupling element.
1. Align the exhaust system free of tension. Refer to Elsa→ Chapter 26> Exhaust System, Emission
Controls > Exhaust Pipes/Mufflers > Exhaust System, Installing without Tension.
 Remove the shipping sleeves from both pipes.
2. Confirm that TSB 2036392 - Software update J931 (address word BA) has been performed.
3. Test drive vehicle until engine is at operating temperature.
4. Perform J931 (address word BA) basic setting and road test.
Page 2 of 4
© 2016 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. If condition is eliminated, release the vehicle.
Warranty
Claim Type:
 110 up to 48 Months/50,000 Miles.
 If vehicle is outside any warranty, this Technical Service Bulletin is
informational only.
Service Number:
2625
Damage Code:
0020
Labor Operations:
A8/S8 Front mufflers remove + reinstall both sides
includes adjusting/aligning exhaust system
2625 2021
130 TU
Diagnostic Time:
GFF
0150 0000
Time
stated on
diagnostic
protocol
(Max 20
TU)
Perform J931 (address word BA) basic setting
1035 9999
10 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 #2045720/2
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 3 of 4
© 2016 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
Part Number
Part Description
Quantity
8K0253115K
Gaskets
2
1K0253141N
Dual Clamps 60x95mm
2
N 91130802
Exhaust nuts M8
6
G 052112A3
Hot bolt paste
0.1
4H0253099A
Hanger only replace if damaged
2
Order by VIN
Exhaust pipe with muffler front (left)
1
Order by VIN
Exhaust pipe with muffler front (right)
1
Additional Information
All parts and service references provided in this TSB (2045720) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.
The following Technical Service Bulletin(s) will be necessary to complete this procedure:
 TSB 2036392, 27 Vibrations felt at 1000 rpm and 3000 rpm.
©2016 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.
Page 4 of 4
© 2016 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.