23 14 31 2038105
Service Bulletin Details
Public Details for: 23 14 31 2038105
Production tolerances in intake hose can cause amplification of normal turbocharger noises. Customer states excessive turbocharger resonance or intake air noises during acceleration. The concern can be reproduced at approximately 30% thrott
Models from 2015
| 2015 AUDI Q7 |
Models from 2014
| 2014 AUDI Q7 |
Models from 2013
| 2013 AUDI Q7 |
Technical Service Bulletin 23 Excessive whining or intake noise from turbocharger 23 14 31 2038105/1 August 18, 2014. Model(s) Year VIN Range Vehicle-Specific Equipment Q7 2013 - 2015 All TDI clean diesel Condition • Customer states excessive turbocharger resonance or intake air noises during acceleration. The concern can be reproduced at approximately 30% throttle loading and medium RPM. • No intake leaks found. Technical Background Production tolerances in intake hose can cause amplification of normal turbocharger noises. Production Solution Not applicable. Service 1. Before proceeding, ensure that the Condition matches exactly. If any DTC codes are stored for turbocharger or boost pressure issues, or if any drivability complaints are reported, this bulletin does not apply. Follow GFF and continue diagnosis outside of this bulletin. 2. Test drive vehicle to reproduce the noise complaint. The complaint should be easily reproducible at approximately 30% throttle load. Listen to the attached sound file for reference of excessive turbo noise. 3. If the complaint can be reproduced, replace intake hose 4L0129628E (Figure 1). © 2014 Audi of America, Inc. Page 1 of 3 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 Figure 1. Location of air intake hose © 2014 Audi of America, Inc. Page 2 of 3 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 Warranty Claim Type: Use applicable claim type. If vehicle is outside any warranty, this Technical Service Bulletin is informational only. Service Number: 2328 Damage Code: 0020 Labor Operations: Intake hose remove+reinstall 2328 1999 10 TU Diagnostic Time: GFF No allowance 0 TU Road test prior to service procedure 0121 0002 10 TU Road test after service procedure 0121 0004 10 TU 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 #2038105/1 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 Part Number Part Description Quantity 4L0129628E Intake Hose 1 Additional Information All parts and service references provided in this TSB (2038105) are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information. © 2014 Audi of America, Inc. Page 3 of 3 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.