A421737 2038689-

42 Rattle noise from rear suspension
42 17 37 2038689/2 April 18, 2017. Supersedes Technical Service Bulletin Group 42 number 14-22 dated
December 10, 2014 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A4,
A6, A7
2014 - 2016
All
Not Applicable
A5, A5
cabriolet
2014 - 2018
All
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
2
-
Revised header data (Added model years)
1
12/10/2014
Initial publication
Clunking or rattling noises are heard from rear suspension area when vehicle is driven over bumps.
Technical Background
These noises can be caused by an improperly seated rear bump stop (which occurs when the rear bump stop
was not fully inserted into the rear shock absorber mounting during PDI).
Page 1 of 5
© 2017 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.
Production Solution
A bump stop installation tool (SET900) was
developed to aid with the installation of rear
bump stops on B8 and C7 vehicles during PDI
(Figure 1). This tool provides the necessary
leverage to seat the rear bump stop in the
shock absorber mounting.
Tip: One SET900 tool was sent to all
Audi dealers in November 2014. Additional
tools can be purchased through the Audi
Special Tools and Equipment Program.
Figure 1. The SET900 bump stop installation tool.
Service
To ensure proper installation of rear bump stops (in
Audi models without air suspension):
1. Clean the top of the rear bump stops and coat
with tire mounting paste.
2. Use the SET900 special tool to fully press the
rear bump stops in to the upper shock mounts
(Figure 2).
The purpose of the tool is to properly seat the
rear bump stops in the rear shock mounts
(Figure 3), which will prevent them from
dropping out of the rear upper shock mounts
and causing noise.
Figure 2. The SET900 tool being used to install a
rear bump stop.
Page 2 of 5
© 2017 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.
Figure 3. Comparison between rear bump stop
installation without and with the SET900 tool.
Note:
Always ensure that the dust boot does not get caught on the top of the shock once the vehicle is
lowered.
Tip: A video demonstrating the use of this tool is available at:
https://audi-external.kzoplatform.com:443/swf/player/286
(Figure 4). See TSB 2039206 for more information about viewing videos.
Page 3 of 5
© 2017 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.
Figure 4. QR code for viewing the video with a QR
code reader on phones and tablets. Alternatively,
the video can be accessed through computer
internet browsers at the link provided in this bulletin.
Warranty
This TSB is informational only and not applicable to any Audi Warranty.
Additional Information
The following Technical Service Bulletin(s) will be necessary to complete this procedure:
 TSB 2039206, 00 Viewing TSB videos.
All parts and service references provided in this TSB (2038689) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.
©2017 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
Page 4 of 5
© 2017 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.
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 5 of 5
© 2017 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.