46 Squeal from front brakes - Audi e-tron quattro
46 19 15 2056700/1 November 8, 2019.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

Audi e-tron
quattro

2019 - 2020

000001 - 022004

Not Applicable

Condition
Customer reports hearing a squealing noise in multiple frequencies (1.7 KHz, 2.5 KHz, and 10.5 KHz) from front
brakes in the following conditions:
 Driving forward or reverse, warm brakes, slow speeds (10.5 KHz).
 Driving forward or reverse, cold brakes, first application, slow speeds, (1.7 KHz and 2.5 KHz).
 Ambient temperatures and humidity conditions may vary.
Please review the audio/video example below: https://audiexternal.kzoplatform.com/player/medium/15415016191898474
14 (Figure 1).

Figure 1. QR code to supporting video.
Note:
A. Frequencies can be identified with our Audi Frequency Analysis App, review TSB 2051095: 46 Audi
frequency analysis for further information.
B. Please describe the frequency found in the vehicle in the warranty claim comments section (1.7 KHz and/or
2.5KHz and/or 10.5KHz).

Page 1 of 4
© 2019 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 Background
Not applicable.

Production Solution
Not applicable.

Service
1. Parts replacement:
Replace front brakes pads according to the instructions in ELSA at Repair Manual, Chassis >> Brake System
>> 46 Mechanical Components >> Front Brakes >> Brake pads, Removing and Installing 1LE, 1LF, 1ZK.
2. Brake Embedding:
A. Perform10 stops from approximately 35 mph to 10 mph with medium to high brake application.
B. Drive approximately 2 minutes at 40 mph without braking to allow the brakes to cool down.
C. Repeat steps A and B if necessary.
Note:
A. This bulletin does not apply if there is an improper operation or misuse of the vehicle.
B. Do not perform ABS stops as a way of embedding the brakes. Brake pads and discs may be permanently
damaged if brakes are overheated prior to being properly embedded.
Tip: Rust/Corrosion build-up, grooves, or glazing on the brake surface of the brake disc may cause noise
and must be considered when replacing brake pads. If this TSB has not been completed, complete the repairs
as outlined in this TSB. If this TSB has already been completed and the noise has returned, please review TSB
2034181: 46 Brake noise analysis and handling.

Warranty
Claim Type:

 110 up to 6 Months/6,000 Miles.
 1EB over 6 Months/6,000 Miles up to 12 Months/12,000 Miles.
 If the vehicle is outside any warranty, this Technical Service Bulletin is informational
only.

Service Number:

4636

Page 2 of 4
© 2019 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.

Damage Code:

0010

Labor Operations:

Wheels remove + reinstall front

4405 2000

See SRT

Brake pads front remove + reinstall

4636 2050

See SRT

GFF

No allowance

0 TU

Road test prior to the service procedure

0121 0002

10 TU

Road test after the service procedure

0121 0004

10 TU

Diagnostic Time:

Claim Comment:

As per TSB #2056700/1

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
The part numbers mentioned in this TSB are different than the ones listed in ETKA. Only use parts listed in this
TSB, this includes superseding part numbers!
Part Number

Part Description

Quantity

See ETKA

Fasteners, Bolts, Nuts, and Screws as needed per the
Repair Manual

See ETKA/ELSA

4KE698151G

Set of front brake pads

01

G052150A2

Lithium grease

0.1

See ETKA

Sender wire

02

Additional Information
The following Technical Service Bulletin(s) will be necessary to complete this procedure:
 TSB 2051095, 46 Audi frequency analysis.
 TSB 2034181, 46 Brake noise analysis and handling.
All parts and service references provided in this TSB (2056700) are subject to change and/or removal.
©2019 Audi of America, Inc. All rights reserved. The 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

Page 3 of 4
© 2019 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.

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
© 2019 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.