A172218204064412

Technical Service Bulletin
17 MIL on, DTC P2279 and/or P0507 whistling noises from engine compartment
17 22 18 2040644/12 March 10, 2022. Supersedes Technical Service Bulletin Group 17 number 20-99 dated
March 19, 2020, for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A6, A7, and
A8
2013 – 2016
All
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
12
-
Revised Warranty (Updated Labor Operations)
11
03/19/2020
Revised Warranty (Updated TU)
10
03/28/2018
Revised title
Revised Warranty (Updated GFF Diagnostic Time)
Customer states:
• A metallic whistling or grinding sound is heard from the engine compartment when the vehicle is at idle
speed.
• The sound usually only occurs when the engine is warm.
• The MIL is sporadically on.
Workshop findings:
The following DTCs are stored in the engine control module (ECM), J623 (address word 0001):
• DTC P2279 (Intake air system leak).
• DTC P0507 (Idle control system rpm higher than expected).
Technical Background
© 2022 Audi of America, Inc.
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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
A leak in the crankcase breather module (pressure regulating valve) can cause this condition.
Production Solution
A fabric-reinforced internal membrane of the crankcase breather module.
Service
1. Perform both of the following checks before proceeding:
• Compare the sound of the vehicle to the sound in the
video located at:
https://audiexternal.kzoplatform.com:443/swf/player/311 (Figure
1).
• Open the filler cap to check whether the sound is
affected when the filler cap is open.
Figure 1. QR code for viewing the video with
a QR code reader on phones and tablets.
Alternatively, the video can be accessed
through computer internet browsers at the
link provided in this bulletin.
2. If the sound of the vehicle matches the sound in the video and the sound is affected when the filler cap
is opened, replace the oil separator breather module.
Warranty
Claim Type:
• 110
• G10 for CPO Covered Vehicles – Verify Owner.
• If the vehicle is outside any warranty, this Technical Service Bulletin
is informational only.
Service Number:
© 2022 Audi of America, Inc.
1726
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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
Damage Code:
0050
Oil separator
1753 1971
See SRT
breather remove
With associated
+reinstall
Diagnostic Time:
Operations
GFF – Checking and 0150 0000
Time stated on the
clearing fault codes
diagnostic protocol
included in existing
(Max 150 TU,
labor operations
depending on vehicle
options)
Road test prior to
0121 0002
10 TU
0121 0004
10 TU
service procedure
Road test after
service procedure
Claim Comment:
As per TSB 2040644/12
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and
Procedures Manual. Claims are subject to review or audit by Audi Warranty.
Required Parts and Tools
Always check with your Parts Department and/or ETKA for the latest information and parts bulletins.
Part Number
Part Description
Quantity
079103542E
Oil separator
01
079129717J
Gasket intercooler left
01
079129717K
Gasket intercooler right
01
N 90442501
Retaining clip
02
© 2022 Audi of America, Inc.
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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
N 90489801
Retaining clip
02
N 90409501
Retaining clip
02
079145818
Gasket throttle body
01
079145417B
Gasket recirculation valve
02
WHT 001011
O-ring
01
Refer to Etka
Coolant
01
Outside material
Distilled water (obtain locally)
Shop supply
See ETKA
Fasteners, Bolts, Nuts, and Screws as needed per
See ETKA/ELSA
the Repair Manual
Additional Information
All parts and service references provided in this TSB (2040644) are subject to change and/or removal.
©2022 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.
© 2022 Audi of America, Inc.
Page 4 of 4
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.