A4020072047920_4
Service Bulletin Details
Public Details for: A4020072047920_4
The bulletin contains diagnosis information for noises on the front end of the vehicle. Potential rolling sounds.
- 2021 - 2020 - 2019 - 2018 - 2017 - 2016 - 2015 -
Models from 2021
| 2021 AUDI A4 |
| 2021 AUDI A5 |
| 2021 AUDI Q7 |
Models from 2020
| 2020 AUDI A4 |
| 2020 AUDI A5 |
| 2020 AUDI Q7 |
Models from 2019
| 2019 AUDI A4 |
| 2019 AUDI A5 |
| 2019 AUDI Q7 |
Models from 2018
| 2018 AUDI A4 |
| 2018 AUDI A5 |
| 2018 AUDI A6 |
| 2018 AUDI A7 |
| 2018 AUDI Q7 |
Models from 2017
| 2017 AUDI A4 |
| 2017 AUDI A6 |
| 2017 AUDI A7 |
| 2017 AUDI Q7 |
Models from 2016
| 2016 AUDI A6 |
| 2016 AUDI A7 |
Models from 2015
| 2015 AUDI A6 |
| 2015 AUDI A7 |
40 Noises from front end and dash panel, noise is heard when the vehicle is moving 40 20 07 2047920/4 May 18, 2020. Supersedes Technical Service Bulletin Group 40 number 20-04 dated May 12, 2020 for reasons listed below. Model(s) Year VIN Range Vehicle-Specific Equipment A5 2018 - 2021 All Not Applicable A6, A7 2015 - 2018 All Not Applicable A4, Q7 2017 - 2021 All Not Applicable Condition REVISION HISTORY Revision Date Purpose 4 - Revised header (Corrected Elsa display issue) 3 5/12/2020 Revised header (Added model years and models) Revised Warranty (Added models) 2 03/02/2018 Revised title (Added clarity) Revised Additional Information (Updated disclaimer) Customer states: There is a buzzing, booming, humming, whistling or a similar noise from the front end. The noises can possibly be heard from the steering area or behind the dash panel. The noises may also suspected to be tire rolling noises. Workshop findings: The noises can be reproduced in a test drive. Technical Background Mechanical damage on the wheel bearing of the front axle. Production Solution Not applicable. Page 1 of 4 © 2020 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. Service The noises from the wheel bearing can be transmitted via the steering into the vehicle interior. Because of the close proximity it can be difficult to distinguish them from tire rolling noises. Therefore with such noises check whether the wheel bearings of the front axle may be the source and replace the affected component. The following steps are helpful: 1. Does the frequency rise as the speed increases or does the sound get higher? 2. Does the noise get louder when steering? 3. Is the noise still there when slowing down? 4. Is the noise amplified on the steering wheel/airbag well? 5. Can the vibrations be felt on the unpressed coil spring when the wheel is turning? 6. When swapping around the wheel bearings does the noise move with a particular bearing? Tip: Please precisely locate the source of the noise with acoustic testers. It is possible that a noise perceived on the left side of vehicle is caused by the right wheel bearing. The front wheel bearings should not be replaced in pairs. If the cause of the noise cannot be traced to a wheel bearing, continue the analysis on other components. 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: 4057 Damage Code: 0020 Labor Operations: A4, A5, A6, and A7 one front wheel bearing: Remove and install front hub with bearing 4067 1900 See SRT Replace front wheel bearing 4057 5550 See SRT 4067 2000 See SRT A4, A5, A6, and A7 both front wheel bearings: Remove and install 2 front hubs with bearings Page 2 of 4 © 2020 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. Replace 2 front wheel bearings 4057 5650 See SRT Remove and install front hub with bearing 4067 1900 See SRT Replace front wheel bearing 4057 5500 See SRT Remove and install both front wheel bearings 4067 2000 See SRT Replace 2 front wheel bearings 4057 5600 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 Q7 one front wheel bearing: Q7 both front wheel bearings: Diagnostic Time: Claim Comment: As per TSB #2047920/3 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. 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 See ETKA Wheel bearings (Up to 2) See ETKA Fasteners, Bolts, Nuts, and Screws as needed per the Repair Manual See ETKA/ELSA Additional Information All parts and service references provided in this TSB (2047920) are subject to change and/or removal. ©2020 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 3 of 4 © 2020 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 © 2020 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.