V9422012066639_1

Technical Service Bulletin
94-22-01 - Taillights Cluster Condensation
Transaction No:
2066639/1
Release date:
3/29/2022
Condition
Applicable Vehicles
Model(s)
Year
Eng. Code
Trans. Code
VIN Range
From
VIN Range To
All
2021-2022
All
All
All
All
Revision Table
Instance Number
Published Date
Version Number
2066639/1
3/29/22
94-22-01
Reason For Update
Original publication.
The lenses of the taillights are steamed up/damp from the inside with minor or major water droplet
concentration.
Technical Background
Lights with LED technology do not warm the lens as much when switched on as conventional bulb
technology does. Therefore less waste heat is created to dry out the lenses.
High air humidity and temperature differences between taillights and surrounding area can lead to
condensation, mainly in winter or in wet weather.
The steaming-up of the taillights can be compared with a steamed-up windshield.
This condition can occur particularly after driving through a car wash or temperature changes overnight.
With the simultaneous of cooling the lens due to cold fresh air, the smallest amount of humidity
immediately condenses on the inside of the taillight lens. On taillight lenses with a clear glass optics this
phenomenon is more noticeable than on red transparent taillight lenses.
Note:
The physical condensation of the taillights is an optical phenomenon which does not affect the function of
the taillights.
The replacement of the taillight cluster with physical damage related to condensation is not permitted as
this is not a technical fault and is not covered by warranty.
Page 1 of 3
© 2022 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 Service Bulletin
Transaction No:
2066639/1
Release date:
3/29/2022
94-22-01 - Taillights Cluster Condensation
1. Examples of taillights with slight condensation with no drips or water droplets.
Figure 1:
Figure 2:
2. Examples of taillight condensation, with droplets or water dripping.
Figure 4:
Figure 3:
Page 2 of 3
© 2022 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 Service Bulletin
94-22-01 - Taillights Cluster Condensation
Transaction No:
2066639/1
Release date:
3/29/2022
The following points have to be checked to prevent an unnecessary replacement of taillights.
1. Taillights: the condensation should systematically dry out after a change of the climate conditions.
However, the duration of the drying out process is dependent upon the outside temperature, the general
air humidity, and a possible change in the temperature.
This condition is normal, no replacement necessary.
2. In case of an obvious water ingress check the tail light cluster for optical faults (seal fit, taillight
housing cracks).
Note:
Upon replacing taillights all documentation and pictures must be uploaded to WISE for warranty
reimbursement. See warranty section for more information on uploading information in WISE.
Production Solution
NA.
Service
NA.
Warranty
Information only.
Note:
All documentation is needed for reimbursement and must be uploaded to WISE. For information on
uploading documents and pictures in WISE, go to WISE > Resource Center > Dealer Processes & Guide,
select pdf file: Wise Operations Section – Doc-IT Technical Bulletin Uploading Process Job Aid.
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
© 2022 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.