A4621212062052_1

46 Squeal from the front brakes - RS Q8
46 21 21 2062052/1 January 28, 2021.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
RS Q8
2020 - 2021
All
Steel brakes
Condition
Customer states:
 They hear a squealing noise in frequency 7,3 KHz from front brakes in the following conditions:
a. Driving forward up to 40 mph;
b. Warm brakes.
c. Ambient temperatures and humidity conditions may vary.
Please review the audio/video example below: https://audiexternal.kzoplatform.com/media/1871991159572665410 (Figure 1).
Figure 1. QR code to supporting video.
Note:
Frequencies can be identified with our Audi Frequency Analysis App, review TSB 2051095: 46 Audi frequency
analysis for further information.
Technical Background
Not applicable.
Page 1 of 4
© 2021 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
Improved parts from August 2020.
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 RS Q8.
2. Brake Embedding:
A. Perform 10 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:
 This bulletin does not apply if there is an improper operation or misuse of the vehicle.
 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 48 Months/50,000 Miles.
 If the vehicle is outside any warranty, this Technical Service Bulletin is informational
only.
Service Number:
4636
Damage Code:
0010
Labor Operations:
Wheels remove + reinstall front
4405 2000
See SRT with
associated
operations
Page 2 of 4
© 2021 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.
Diagnostic Time:
Claim Comment:
Brake pads front remove + reinstall
4636 2050
See SRT with
associated
operations
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
As per TSB #2062052/1
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
4M8698151C
Set of front brake pads
01
G052150A2
Lithium grease
0.1
See ETKA
Set of Springs
02
See ETKA
Sender wire
02
Additional Information
More information on this system can be found in the following resources:
 Elsa: Chassis >> Brake System >> 46 Mechanical Components >> Front Brakes >> Brake pads, Removing
and Installing RS Q8.
The following Technical Service Bulletin(s) will be necessary to complete this procedure:
 TSB 2039206, 00 How to watch TSB videos.
 TSB 2051095, 46 Audi frequency analysis.
 TSB 2034181, 46 Brake noise analysis and handling.
Page 3 of 4
© 2021 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.
All parts and service references provided in this TSB (2062052) are subject to change and/or removal.
©2021 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
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
© 2021 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.