A102326201828810

Technical Service Bulletin
10 Engine replacement, checking for debris lodged in transferred assemblies
10 23 26 2018288/10 June 15, 2023. Supersedes Technical Service Bulletin Group 10 number 21-22 dated May
13, 2021, for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
All
Internal Combustion Engine
All Audi Vehicles 1998 – 2024
Condition
REVISION HISTORY
Revision Date
Purpose
10
-
Revised header (Added model year)
9
05/13/2021 Revised header (Added model year)
8
05/06/2019 Revised header (Added model years)
Before replacing the engine, any debris lodged in transferred assemblies must be removed.
Note:
This TSB does not apply to all-electric vehicles.
Technical Background
If the engine experienced a serious mechanical problem, it is possible that small pieces of metal debris resulting
from the mechanical problem may have become deposited in the intake manifold, air intake hoses, exhaust
manifolds, exhaust down-pipes, turbocharger, supercharger, and/or intercooler.
Note:
If these metal debris pieces are not removed prior to the installation and operation of the replacement engine,
they could be drawn into the combustion chamber, which can cause a knocking noise and subsequent serious
engine damage.
Production Solution
Not Applicable
Page 1 of 2
© 2023 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 Service Bulletin
Service
Prior to installation of replacement engines, thoroughly inspect and clean the intake manifold, air intake hoses,
exhaust manifold, exhaust downpipes, turbocharger, supercharger, and intercooler. This inspection is especially
important on engines with two-stage or variable intake manifolds, which must be checked internally for any signs
of debris.
• If any debris is evident in the intake manifold or cylinder head ports, replace the manifold, as cleaning of the
internal intake paths cannot be 100% guaranteed. Debris can be lodged in the inner parts of the manifold until
the manifold changes intake lengths. The debris may loosen and travel into the replacement engine.
• Not every engine replacement will require a new intake manifold. The decision to replace the intake manifold
depends on the extent of mechanical damage.
Tip: Engine damage caused by failure to clean debris from assemblies that are transferred to a replacement
engine is not covered by Warranty.
Warranty
This TSB is informational only and not applicable to any Audi warranty.
Additional Information
All parts and service references provided in this TSB (2018288) 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.
©2023 Audi of America, Inc. All rights reserved. The 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 2 of 2
© 2023 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.