V941501 2011521

Technical Bulletin
Model(s)
Year
Eng. Code
Trans. Code
VIN Range From
VIN Range To
1996-2015
All
All
All
All
All
(except Routan)
Condition
94 15 01 March 27, 2015 2011521 Supersedes T. B. V941403 dated June 04, 2014 to include additional model
applicability.
Exterior Lights, Moisture Accumulation
Condensation and or water droplets visible on inside of exterior light lenses.
Note:
Condensation does not affect performance of light assemblies.
Technical Background
Exterior light assemblies (headlights, taillights,
fog lights, turn signals) are vented and may
collect moisture on their inner surfaces,
depending on humidity and climatic conditions.
The unfavorable condensation built up (Figure
1) visible to the customer is more common
with modern exterior lights because of clear
glass optics, however this condition will not
have an impact on the functionality or
durability of the component.
Environmental conditions that frequently
cause condensation to build up on lens:
• Car washes
• Driving or parking in rain/snow
Figure 1
• Frequent short distance operation in wet
weather
For headlight condensation that is due to environmental conditions, the affected lens surface should be
cleared after approx. 30 minutes of light operation.
Page 1 of 3
© 2015 Volkswagen Group 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 Volkswagen Group 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 Bulletin
Production Solution
No production change required.
Service
In cases where larger water droplets have formed
on the inside of the lens or significant amount of
water has collected at the bottom of a light
assembly, Figure 2.
Figure 2
• Check that the housing covers (Figure 3) are
properly installed. If the housing covers are
not fully seated in place, use compressed air
(less than 30 PSI) to blow out the lens and
recheck for leaks.
• Check for leaking seals, cracks in lenses or
assemblies.
Figure 3
Page 2 of 3
© 2015 Volkswagen Group 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 Volkswagen Group 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 Bulletin
DO NOT replace light or lens assemblies unless damage is found.
If damage to seals or cracks to lenses or assemblies are found:
• Follow normal repair procedures for this type of failure (provide photograph(s) with repair documentation for
verification).
If the condition is determined to be condensation due to environmental conditions and no damages are
found, explain to the customer the information provided in the Technical Background section above.
Warranty
Information only.
Required Parts and Tools
No Special Parts required.
No Special Tools required.
Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.
Page 3 of 3
© 2015 Volkswagen Group 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 Volkswagen Group 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.