2028277/7
Service Bulletin Details
Public Details for: 2028277/7
Summary to be provided on a future date.
- 2014 - 2013 - 2012 - 2011 - 2010 -
Models from 2014
2014 AUDI Q7 |
Models from 2013
2013 AUDI Q7 |
Models from 2012
2012 AUDI Q7 |
Models from 2011
2011 AUDI Q7 |
Models from 2010
2010 AUDI Q7 |
Technical Service Bulletin 94 Moisture accumulation in headlamps 94 13 20 2028277/7 July 3, 2013. Supersedes Technical Service Bulletin Group 94 number 13-11 dated March 6, 2013 for reasons listed below. Model(s) Year VIN Range Vehicle-Specific Equipment Q7 2010 - 2014 All Not Applicable Condition REVISION HISTORY Revision Date Purpose 7 - Revised Service (added sealing ring instructions; removed butyl cord instructions) Revised Required Parts and Tools (removed butyl cord sealant; added sealing ring) 6 3/6/2013 Revised Service (added information on vent tube) 5 1/2/2013 Revised Service (added air duct install) Revised Warranty Revised Required Parts and Tools 4 11/21/2012 Revised Service Revised Warranty Revised Required Parts and Tools Revised Header data (added model years) 3 10/24/2012 Revised Required Parts and Tools Revised Production Solution 2 3/1/2012 Revised Service Revised Required Parts and Tools 1 12/20/2011 © 2013 Audi of America, Inc. Original publication Page 1 of 8 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 • There is considerable moisture present in the headlamp (Figure 1). • The moisture disappears only after extended drives (greater than 10 minutes). • There is no external damage to the headlamp which could introduce moisture. Figure 1. Moisture in headlamp. Technical Background Humid air settles on the inside of the glass, causing moisture to appear on the inside of the headlamp lens. Because of the headlamp circulation system, outside air is allowed to flow through the headlamps. The open, water-protected ventilation system (needed for pressure compensation) creates different “climate zones” inside the headlamp, where the lens is either warmed up by the light or cooled down by passing air. When high air humidity and temperature differences exist between the inside of the headlamps and the outside, condensation can form on the inside of the lens, especially in cold and wet weather. This moisture buildup can happen, for example, after a car wash, after steam cleaning of the engine or the front end, or after overnight temperature changes. This condition is more easily visible with headlamps made from clear glass. The moisture is an optical condition which does not affect the headlamp function (light performance) and does not lead to corrosion or damage of the internal headlamp parts. This condition is common to all exterior vehicle lights, and can occur on every headlamp, fog lamp, or rear lamp. Production Solution • Optimized headlamp ventilation hose placed into production for all xenon headlamps. • Charge air ducts placed behind intercoolers. © 2013 Audi of America, Inc. Page 2 of 8 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. Remove the headlamps and dry the inside using compressed air or a hot air blower. Check for any loose caps, loose or unsealed control modules, or cracks in the headlamp housing(s) as the culprit of moisture exposure. 2. If the vehicle’s build is prior to VIN # *CD004736 and the updated ventilation hoses are not currently installed, replace the headlamp ventilation hose for each headlamp with the new part number to help reduce any further humidity ingress into the headlamps (see Required Parts and Tools, below). Proceed to step 3. Tip: The updated ventilation hose can be recognized by the integrated filter (Figure 2, arrow). Figure 2. Updated ventilation hose with integrated filter. Tip: The updated ventilation hose is not connected directly to the headlamp housing. The house routes downward from the headlamp carrier and between the radiator and bumper (Figure 3, arrow). Figure 3. Mounting of updated ventilation hose. © 2013 Audi of America, Inc. Page 3 of 8 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 3. Each headlamp air ventilation tube must be sealed to protect against further moisture ingress (Figure 4). Figure 4. Headlamp ventilation guide tube. 4. Install ring seal on headlamp air ventilation tube (Figure 5). The larger diameter of the seal faces the headlamp. Figure 5. Ring seal installed on headlamp air tube. 5. Reinstall headlamps. Tip: If the headlamps were removed after butyl cord or other rubber type of sealant was already applied to air tubes from a prior procedure, remove the old sealant before installing headlamps. 6. Check vehicle for left and right air ducting for exiting air behind charge coolers. Vehicles built from June 2010 will not have these exit air ducts installed. Check vehicle regardless of build date. If air ducts are not installed, continue with steps 7 – 11. Otherwise, proceed to step 12. © 2013 Audi of America, Inc. Page 4 of 8 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 7. Remove front wheels and wheel housing liners. The rear of the charge air coolers will be exposed (Figure 6). Figure 6. View of charge air cooler with wheel well liner removed. 8. Locate exit air duct attachment hooks on the left and right air charge coolers (Figures 7 and 8). Figure 7. Lower exit air duct attachment point to charge air cooler. Figure 8. Upper exit air duct attachment points to charge a cooler. © 2013 Audi of America, Inc. Page 5 of 8 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 9. Affix left and right exit air ducts over the rear of the charge air coolers (Figure 9). Figure 9. Charge air cooler exit air duct installed. 10. Inspect exit air duct attachment points to be sure that ducts are engaged properly over charge air cooler hooks (Figure 10). Figure 10. View of exit air duct affixed to mounting hook. 11. Reinstall wheel well liners and wheels. 12. Please inform the customer the new ventilation hoses and sealant are only to help reduce the moisture condition, but will not eliminate the condition completely. Moisture in the headlamp lens is normal and can occur even with the improved filtration. © 2013 Audi of America, Inc. Page 6 of 8 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: 9415 Damage Code: 0010 Labor Operations: Remove and reinstall both headlamps 9415 2001 50 TU Modify both headlamps and mounting 9415 5099 40 TU Installation of left and right air ducts 6616 2000 110 TU Diagnostic Time: GFF – Checking and clearing fault codes included No allowance in existing labor operations 0 TU Road test prior to service procedure No allowance 0 TU Road test after service procedure No allowance 0 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 #2028277/7 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 4L0941717A Left Headlamp Ventilation Hose 1 (if necessary) 4L0941718A Right Headlamp Ventilation Hose 1 (if necessary) 4L0941123 Sealing Ring 2 7L0117339 Left charge air cooler exit duct 1 (if necessary) 7L0117340 Right charge air cooler exit duct 1 (if necessary) © 2013 Audi of America, Inc. Page 7 of 8 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 Additional Information The following Technical Service Bulletin(s) will be necessary to complete this procedure: • TSB 2012749, 94 Exterior lights, moisture accumulation All parts and service references provided in this TSB (2028277) are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information. © 2013 Audi of America, Inc. Page 8 of 8 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.