A6622842065912_1

Technical Service Bulletin
66 Grinding noise heard with steering wheel turned to full lock
66 22 84 2065912/1 January 31, 2022.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
Q3
2019 – 2022
All
Not Applicable
Condition
Customer states:
When the steering wheel is turned to full lock and the front strut compresses a rubbing, creaking, or snap sound is
heard in the front wheels.
Technical Background
The front-wheel housing liner protrudes into the path of the bracket on the suspension strut housing where the
coupling rod is attached when the wheels are turned to full lock. The noise disappears when the steering angle is
straightened.
Figure 1 shows the point of contact between the
coupling rod bracket and the wheel housing liner.
Figure 1. Contact point in front wheelhouse.
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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
The protrusion of the wheel housing liner at issue is
shown in Figure 2.
Figure 2. Protrusion from wheelhouse liner.
Evidence of contact can be seen on the wheel housing
liner as chafing in the area of the wheel housing liner
shown in Figure 3.
Figure 3. Chafing as a result of contact.
Production Solution
The production process has been improved to provide sufficient clearance in this area.
© 2022 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. Confirm that the root cause of the noise is as
described in this TSB. Loosen the wheel housing
liner and trim the material to provide adequate
clearance using tin snips or heavy-duty shears. In
Figure 4, the section in red is the section to be
trimmed and removed. Perform this modification
to both the left front and right front sides.
Figure 4. Section to be trimmed away on wheel housing
liner.
2. Confirm the efficacy of the repair by checking for adequate clearance when the strut is compressed and the
steering wheel is at full lock.
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:
6616
Damage Code:
0020
Labor Operations:
Modify both front-wheel housing liners
66 16 50 99
50 TU
Diagnostic Time:
GFF
No allowance
0 TU
Road test prior to the service procedure
0121 0002
10 TU
© 2022 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
Road test after the service procedure
Claim Comment:
0121 0004
10 TU
As per TSB 2065912
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
Additional Information
All part and service references provided in this TSB (2065912) are subject to change and/or removal. Always check
with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the Repair
Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
©2022 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.
© 2022 Audi of America, Inc.
Page 4 of 4
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.