Technical Service Bulletin
46 A6 and A7 squealing from front brakes (PR-1LJ)
46 16 38 2040964/3 May 24, 2016. Supersedes Technical Service Bulletin Group 46 number 15-24 dated October
14, 2015 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A6, A7

2014 - 2015

All

With PR code 1LJ

Condition
REVISION HISTORY
Revision

Date

Purpose

3

-

Revised Required Parts and Tools (Added brake disc option)

2

10/14/2015

Revised header data (Removed VIN breaks)
Revised Production Solution (Completely revised)
Revised Service (Added steps)
Revised Warranty (Added 4636 2050 labor operation)
Revised Required Parts and Tools (Added brake pads)

1

6/29/2015

Initial publication

Customer may complain about brake squeak or squeal with light to moderate pedal pressure.

© 2016 Audi of America, Inc.

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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
Technical Background
If any of the following conditions exist, this TSB does not apply.
1. Front brake discs or brake pads are close to their wear
limit (disc wear limit: 28 mm and pads wear limit with
backing plate and dampening plate: 10 mm).
2. Foreign objects between brake disc and brake pad,
such as small stones, grit, rust build-up, or sand.
3. Un-ground or corroded friction materials.
4. Metallic deposits from disc material in brake pad
(Figure 1).

Figure 1. Metallic deposits.

Production Solution
Multiple unique improvements were released.

© 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
1. Replace front brake pads with updated brake pads (part
number 4G0698151K) according to Elsa.
2. Apply a thin coat of anti-seize (G 052560A2) lubricant to
the guide pins of the front caliper carriers (Figure 2).

Figure 2. Caliper carrier guide pins with anti-seize (G
052560A2) lubricant applied where the pads make
contact.
3. Check the part number on the front discs. If the part
number is not 4G0615301G, then install 4G0615301G or
4G0615301Q front discs, or any supersession available
in ETKA (Figure 3).

Tip: Replacing front brake discs on cars that
already have part number 4G0615301G installed will not
resolve the noise complaint and will not be covered
under warranty.

Figure 3. Front brake disc part number location.

Brake embedding
1. Perform 10 stops from approximately 35 mph to 10 mph with medium pedal pressure.
2. Drive for approximately 5 minutes without braking to allow the brakes to cool down.

© 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
3. Perform 10 stops from approximately 35 mph to 10 mph with medium pedal pressure.
4. Drive for approximately 5 minutes without braking to allow the brakes to cool down.
5. Repeat steps 1 and 2 if necessary.
6. Do not perform ABS stops as a way of embedding the brakes. Brake pads and discs may be permanently
damaged.

Tip: If the vehicle still exhibits brake noise after all the repairs stated above have been accurately performed:
• Obtain a sound recording, create a TAC ticket, and attach the sound recording.
• Do not open a TAC ticket without a sound recording.

Warranty
There must be an original customer complaint of the specified symptom on the repair order for this Technical
Service Bulletin to apply. Adding this procedure on is not permitted.
Claim Type:

110

Service Number:

4617

Damage Code:

0020

Labor Operations:

2 Wheels remove+reinstall

4405 2000

20 TU

Brake pads, front remove+reinstall

4636 2050

50 TU

4650 2050

50 TU

Road test prior to service procedure

0121 0002

10 TU

Road test after service procedure

0121 0004

10 TU

(Includes brake fluid inspection/addition and front brake
calipers cleaning)
If applicable:
2 Front brake disc remove+reinstall
(Includes front brake caliper loosening and fastening)
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 #2040964/3

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.

© 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
Required Parts and Tools
Part Number

Part Description

Quantity

4G0698151K

1 set of brake pads for disc brakes

1 set

4G0615301G or

Front brake discs (if applicable)

2

4G0615301Q

Additional Information
All parts and service references provided in this TSB (2040964) 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.

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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.