A901451 2021151-

Technical Service Bulletin
90 Dash insert, air conditioning control panel or inside light flickers
90 14 51 2021151/5 December 8, 2014. Supersedes Technical Service Bulletin Group 91 number 12-63 dated
October 4, 2012 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
All
2006 - 2015
All
190 A Hitachi Generator
Condition
REVISION HISTORY
Revision
Date
Purpose
5
-
Revised header data (Added model years)
4
10/4/2012
Revised header data (Added model years)
3
4/15/2011
Revised header data (Added model years)
2
8/9/2010
Revised header data (Controlling TSB display in ElsaWeb)
1
7/20/2009
Original publication
• The customer may report flickering of the dash insert lighting, of the A/C control panel lighting, or of the inside
light. The condition occurs when the accelerator is pressed while the vehicle is in P or N, or when the vehicle is
shifted down when moving downhill.
• Only vehicles with PR number 8GH may be affected.
Technical Background
When high electricity consumers are switched off when the battery is fully charged, the energy generated by the
alternator is sometimes too great for the power system to absorb. This may lead to briefly-increased voltage,
causing the lights to flicker.
Production Solution
No change. This characteristic is caused by the alternator design and is a normal condition of the vehicle.
Service
Repairs and parts replacements do not change the above characteristic. Explain to the customer that this
characteristic is not a malfunction.
© 2014 Audi of America, Inc.
Page 1 of 2
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
This TSB is informational only and not applicable to any Audi warranty.
Additional Information
All parts and service references provided in this TSB (2021151) 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 2 of 2
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.