A171893 2040644_

17 MIL on, DTC P2279 and/or P0507 whistling noises from engine compartment
17 18 93 2040644/10 March 28, 2018. Supersedes Technical Service Bulletin Group 17 number 17-89 dated
November 21, 2017 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A6, A7, and
A8
2013 - 2016
All
4.0 TFSI
Condition
REVISION HISTORY
Revision
Date
Purpose
10
-
Revised title
Revised Warranty (Updated GFF Diagnostic Time)
9
11/21/2017
Revised Required Parts and Tools (Updated quantity)
8
05/25/2017
Revised header data (Added engine code)
Customer may report:
 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
A leak in the crankcase breather module (pressure regulating valve) can cause this condition.
Production Solution
Fabric reinforced internal membrane of crankcase breather module.
Page 1 of 4
© 2018 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.
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://audi-external.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 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If vehicle is outside any warranty, this Technical Service Bulletin is informational
only.
Service Number:
1726
Damage Code:
0050
Labor Operations:
For A8 and S8:
Oil separator breather remove +reinstall
1753 1971
20 TU
Air intake distributor remove + reinstall
2446 1921
470 TU
Oil separator breather remove + reinstall
1753 1971
20 TU
Air intake distributor remove + reinstall
2446 1921
600 TU
For S6 and S7:
Page 2 of 4
© 2018 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 labor for adjustment of ACC, top view
camera, and night vision, if necessary based on
vehicle equipment
See Elsa
See Elsa
Oil separator breather remove +reinstall
1753 1971
20 TU
Refrigerant drain + fill
8703 1750
40 TU
Air intake distributor remove + reinstall
2446 1923
690 TU
Additional labor for adjustment of ACC, top view
camera, and night vision, if necessary based on
vehicle equipment
See Elsa
See Elsa
For RS 7:
Diagnostic Time:
Claim Comment:
GFF – Checking and clearing fault codes included 0150 0000
in existing labor operations
Time stated on
diagnostic
protocol (Max
150 TU,
depending on
vehicle options)
Road test prior to service procedure
0121 0002
10 TU
Road test after service procedure
0121 0004
10 TU
As per TSB #2040644/10
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. Please
check the Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
Part Number
Part Description
Quantity
079103542E
Oil separator
1
079129717J
Gasket intercooler left
1
079129717K
Gasket intercooler right
1
N 90442501
Retaining clip
2
Page 3 of 4
© 2018 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.
N 90489801
Retaining clip
2
N 90409501
Retaining clip
2
079145818
Gasket throttle body
1
079145417B
Gasket recirculation valve
2
WHT 001011
O-ring
1
G 013A8J1G
Coolant additive
1
Outside material
Distilled water (obtain locally)
Shop supply
Additional Information
All parts and service references provided in this TSB (2040644) are subject to change and/or removal.
©2018 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 4 of 4
© 2018 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.