Technical Service Bulletin
46 Clicking noise from front brakes
46 16 40 2044669/1 July 12, 2016.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A4

2017

All

Not Applicable

Condition
A clicking noise is heard from front brakes when the vehicle is being driven at
low speeds (up to 10 mph) in either direction. For an example of the sound,
see the video located at: https://audi-external.kzoplatform.com/swf/player/322
(Figure 1).

Figure 1. 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.

Technical Background
The pads may be moving back and forth inside the caliper, which causes the noise.

Production Solution
Not applicable.

© 2016 Audi of America, Inc.

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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
Install new brake pads on both sides according to the instructions in the Elsa Repair Manual at: Chassis>Brake
System>46 Mechanical Components>Front Brakes>Brake Pads Removing and Installing, 1LC/1LD/1LE/1LF. Read
the following installation information before installing the new pads:
• The brake pistons must be clean. Brake cleaner can be
used to clean the brake pistons. Ensure that the contact
surfaces are free of dust and grease, and that they are
dry (Figure 2).
• Only remove the protective paper from the adhesive foil
on the brake pad (Figure 3) immediately before
installation, and do not touch the adhesive surface.
• When installing the brake pads in the caliper, note that
an arrow is printed on the pads to indicate the correct
installation position in the caliper (Figure 4). The pads
should be installed with the arrow following the forward
rotation of the wheel.

Figure 2. Contact surfaces of brake pistons.

Note:
After installing the pads, keep full brake pressure for
about five seconds to ensure that the pads are properly
bonded to the pistons.

Figure 3. Protective paper to be removed
immediately before installation.

Figure 4. Arrow showing correct installation
direction.
© 2016 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
• 110 up to 48/50

Claim Type:

• If vehicle is outside any warranty, this Technical Service Bulletin is informational only.
Service Number:

4636

Damage Code:

0010

Labor Operations:

2 Brake pads, front remove+reinstall

4636 2050

50 TU

2 Wheels remove+reinstall

4405 2000

20 TU

Road test prior to service procedure

0121 0002

10 TU

Road test after service procedure

0121 0004

10 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 #2044669/1

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

8W0698151T

Set of front brake pads

1

Additional Information
All parts and service references provided in this TSB (2044669) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.

© 2016 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.