A401887 2035854-

Service Bulletin Details

Public Details for: A401887 2035854-

This bulletin contains repair instructions for when a rattle or knocking noise is head when driving over bumps and the vehicle has 75mm hydro-bushings.


- 2015 - 2014 - 2013 - 2012 - 2011 - 2010 - 2009 - 2008 -

Technical Service Bulletin
40 Rattling or knocking noise from front end when driving over bumps
40 18 87 2035854/5 November 21, 2018. Supersedes Technical Service Bulletin Group 40 number 14-43 dated
October 9, 2014 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A4
2009 - 2015
All
Not Applicable
A5, Q5
2008 - 2015
All
Not Applicable
A5 cabriolet
2010 - 2015
All
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
5
-
Revised Warranty (Add Claim Types and updated Labor Operations)
4
10/09/2014
Revised Required Parts and Tools (Updated part numbers)
3
07/08/2014
Revised header data (Added model years)
Revised Warranty (Corrected Labor Operation)
Customer states:
 A rattling or knocking noise is heard when the car is driven over bumps or uneven road surfaces. This noise is
heard after the car has been driven for a while and is warmed up, and when the temperature outside is warm.
 This condition can be duplicated if the brakes are applied while the car is being driven over bumpy roads.
 This condition is a comfort concern. Vehicle handling is not affected.
Note:
This bulletin applies only to vehicles equipped with 75mm hydro-bushings. This bulletin does not apply to vehicles
equipped with 65mm bushings.
Technical Background
High ambient temperatures at the hydraulic guide links cause the noise.
Page 1 of 4
© 2018 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
Not applicable.
Service
1. Before proceeding, confirm that the noise is coming from the hydraulic guide links and not from other
suspension components on the vehicle (such as worn or damaged bushings).
Additionally, ensure that the vehicle is equipped with 75mm bushings. Review the repair history of the vehicle
and ETKA to determine which bushings are present.
2. Check the size of the ball joints. In 2010, ball joint sizes were changed from M12 to M14.
 If the vehicle was produced with M14 ball joints:
Replace both left and right lower guide links (Figure 1)
according to the instructions in Elsa at Repair Manual, Chassis
>> Suspension, Wheel, Steering >> Front Suspension >>
Removal and Installation >> Guide Link.
Figure 1. Lower guide link (1).
 If the vehicle was produced with M12 ball joints:
Replacement of the complete guide link is not possible. Only the bushings should be replaced. Remove the
guide links and replace the left and right bushings.
Page 2 of 4
© 2018 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:
 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If vehicle is outside any warranty, this Technical Service Bulletin is informational only.
Service Number:
4016
Damage Code:
0020
Labor Operations: 2 Wheels remove + install
4405 2000
See SRT
2 Lower guide links remove + install
4016 2050
See SRT
Guide link mounting replace
4012 5550
See SRT
GFF
No allowance
0 TU
Road test prior to service procedure
0121 0002
10 TU
Road test after service procedure
0121 0004
10 TU
(For vehicles with M12 ball joints only)
Diagnostic Time:
Claim Comment:
As per TSB #2035854/5
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
Always check with your Parts Department and/or ETKA for the latest information and parts bulletins.
Part Number
Part Description
Quantity
8K0407693AD
Wishbone link (left front) (M14)
01
8K0407694AD
Wishbone link (right front) (M14)
01
8K0407183F
Hydro-mounting (2 pieces)
01
See ETKA
Fasteners, Bolts, Nuts and Screws as needed per the
Repair Manual
See ETKA/ELSA
Page 3 of 4
© 2018 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
Tool Number Tool Description
V.A.G 1332
Torque wrench 40-200 Nm
V.A.G 1332/7 Ring spanner insert, AF 21mm
V.A.G 1383 A Engine-transmission jack
T10149
Wheel hub support
T40042
Ball joint puller
Additional Information
All parts and service references provided in this TSB (2035854) are subject to change and/or removal.
©2018 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
© 2018 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.


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