A2119322034999_4
Service Bulletin Details
Public Details for: A2119322034999_4
This informational bulletin contains an explanation for a discolored pipe.
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2018 AUDI A8 |
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21 Discolored pipe on turbocharger 21 19 32 2034999/4 June 21, 2019. Supersedes Technical Service Bulletin Group 21 number 16-23 dated August 2, 2016 for reasons listed below. Model(s) Year VIN Range Vehicle-Specific Equipment S6, S7, S8, RS 7, and A8 2013 - 2018 All 4.0T Condition REVISION HISTORY Revision Date Purpose 4 - Revised title Revised header (Added model year) 3 08/09/2016 Revised header (Added model years) 2 10/16/2014 Revised header data (Added applicable engines) On 4.0l bi-turbo FSI engines, the pipe on the impeller side of the bank 2 turbocharger looks discolored when compared to the pipe on the bank 1 turbocharger. Page 1 of 3 © 2019 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. Technical Background The crankcase breather is only connected to the bank 2 turbocharger inlet. Blow-by gases from the crankcase breather discolor the pipe (Figure 1). This is a normal condition. Figure 1. The pipe on the impeller side of the bank 2 turbocharger is discolored due to blow-by gases from the crankcase breather. Production Solution Not applicable. Service 1. If necessary, explain to the customer that this is a normal condition. 2. Do not replace any parts due to this condition. Warranty This TSB is informational only and is not applicable to any Audi Warranty. Page 2 of 3 © 2019 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. Additional Information All parts and service references provided in this TSB (2034999) 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. ©2019 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 © 2019 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.