A9421362023322_3
Service Bulletin Details
Public Details for: A9421362023322_3
This informational bulletin contains information on the different shading of led headlights.
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94 LED daytime running lights: differences in color between the two headlights 94 21 36 2023322/3 March 18, 2021. Supersedes Technical Service Bulletin Group 94 number 10-26 dated July 1, 2010 for reasons listed below. Model(s) Year VIN Range Vehicle-Specific Equipment A4, S4, A5, A5 Cabriolet, A6, A8, S8, TT, and Q7 2008 - 2022 All LED lights TTS 2009 - 2022 S6 2008 – 2018, 2021 - 2022 All LED lights A4 Cabriolet, S4 Cabriolet, and RS 4 Cabriolet 2008 - 2009 All LED lights RS 4, RS 4 Cabriolet 2008 All LED lights RS 5, RS 5 Cabriolet 2010 – 2017, 2019, 2021 2022 All LED lights RS 5 Sportback 2019, 2021 2022 All LED lights A7, TTRS 2012 - 2022 All LED lights S7 2012 – 2018, 2020 - 2022 All LED lights A3, A3 Cabriolet, S3, S5 Cabriolet, and Q3 2015 - 2022 All LED lights A3 e-tron 2015 - 2018 All LED lights A3 Sportback, RS 6 2016 - 2018 All LED lights RS 3, SQ7 2017 - 2022 All LED lights A4 allroad, S5, and Q5 2010 - 2022 All LED lights Page 1 of 3 © 2021 Audi 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 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. RS 7 2016 – 2018, 2020 - 2022 All LED lights A5 Sportback, S5 Sportback, SQ5, and R8 2018 - 2022 All LED lights Q8, Audi etron quattro 2019 - 2022 All LED lights A6 allroad, SQ8, RS Q8,, and Audi e-tron Sportback 2020 - 2022 All LED lights A6 Avant, RS 6 Avant 2021 - 2022 All LED lights Condition REVISION HISTORY Revision Date Purpose 3 - Revised header (Added MY 21 and 22) 2 07/01/2010 Revised header (Specified 2011 models) 1 06/02/2010 Initial publication Customer states: The daytime running light LEDs in the headlights have slightly different shades of color. Workshop findings: There are no related DTCs stored. Technical Background The minor color differences of the LEDs are caused by the coating of the blue LED with yellow phosphor. This coating is necessary to get white LEDs. Page 2 of 3 © 2021 Audi 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 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. A permissible range of white for the road traffic is defined by law (Figure 1, Area 1 within blue dotted line). The LED manufacturer sorts the complete production volume according to even smaller color ranges (Figure 1, Area 2 in black grid). To get the fewest possible color deviations, Audi uses only part of the manufacturer’s already limited range and thus only a small section of what is legally permissible for road traffic (Figure 1, Area 3). Figure 1. Section of the color triangle; color range according to DIN 5033. The permissible range of white for road traffic. In production, a finer color selection is not possible; this can lead to minimal color differences. This is normal. Production Solution Not applicable. Service Please explain the Technical Background to the customer. Do not carry out any repairs. Warranty This TSB is informational only and not applicable to any Audi Warranty. Additional Information All part and service references provided in this TSB (2023322) 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. ©2021 Audi 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 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. Page 3 of 3 © 2021 Audi 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 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.