A1523442053278_9

Technical Service Bulletin
15 Oil leak from the cylinder head - 2.9 and 3.0 TFSI only
15 23 44 2053278/9 July 14, 2023. Supersedes Technical Service Bulletin Group 15 number 21-39 dated June
25, 2021 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
Page 1 of 11
© 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
S4, S5, S5
Cabriolet, and
2018 – 2020
S5 Sportback
RS 5
2018 – 2019
RS 5 Sportback
2019
A6, A7, A8, SQ5,
and Q8
All
2019 – 2020
S6, S7, A8 e
quattro, and Q7
S4
2020
2021
000001 – 019775
2.9 & 3.0 TFSI engine
S5 Cabriolet, S5
Sportback, RS 5,
2021
900001 – 900620
2021
000001 – 028126
2021
000001 – 008158
2021
000001 – 044156
Q7
2021
000001 – 017837
Q8
2021
00001 - 013958
and RS 5
Sportback
S6, and S7
A8, and A8 e
quattro
SQ5, and SQ5
Sportback
Condition
REVISION HISTORY
Page 2 of 11
© 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
Revision
Date
Purpose
9
-
Revised Warranty (Updated Labor Operations)
8
06/25/2021
Revised Warranty (Updated Labor Operations)
7
04/01/2021
Revised Warranty (Updated Labor Operations)
Customer states:
• Oil loss in the area around the engine compartment, front end, and underbody.
• Oil level warning (too low).
• There is a smell coming from the engine compartment.
Workshop findings:
• There is a leak in the area around the cylinder head cover, valve cover, and cylinder head.
• There is a leak in the area around the injector.
• There is a leak in the area around the Audi valvelift system actuator.
Technical Background
Metal shavings produced during manufacture in sealing groove between cylinder head cover and the cylinder
head.
Production Solution
Improved production processes.
Service
As the oil loss in the area of the cylinder head cover may involve two different issues, proceed as follows to
clearly determine the source of the leak.
Page 3 of 11
© 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
1. Remove the engine compartment cover and the heat shield below it.
2. Remove the upper noise
insulation of the affected cylinder
bank (Figure 1).
Figure 1. Removing the upper noise insulation.
3. Remove the Audi valvelift system
actuator of the affected cylinder.
A. If there is a substantial
quantity of oil below the Audi
valvelift system actuator
(illustration), the cause of the leak
is the O ring of the Audi valvelift
system actuator.
Note:
Please take photos of the oil
under the Audi valve lift system
actuator as shown in Figure 2.
Then upload them into DOC-IT
Figure 2. Oil in the Audi valve lift system.
Page 4 of 11
© 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
with the repair order. Photos
should:
• Have a date stamp and VIN
reference.
• Be taken in focus and with
sufficient light.
Replace the Audi valvelift system
actuator with an O ring, clean the
engine compartment, and if
necessary replace the noise
insulation (if it is soaked in oil)
(Figure 2).
B. If there is no substantial
quantity of oil below the Audi
valvelift system actuator continue
with Step 4!
4. Remove the lower noise insulation.
5. Locate the affected cylinder. Oil
should have gathered in the area
of the injector (Figure 3) and the
noise insulation should also be
soaked in oil.
Figure 3. Locating the affected cylinder.
Page 5 of 11
© 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
6. Remove the cylinder head cover
and the seal (Figure 4).
Figure 4. Remove the cylinder head cover and gasket.
7. Inspect the gasket groove in the
cylinder head cover and remove
any casting residues with a
suitable tool (Figure 5). The
residues can be removed with a
small flat screwdriver (Figure 6).
Note:
Make sure not to damage the seal
groove!
Figure 5. Before the repair.
Page 6 of 11
© 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
Figure 6. After the repair.
8. Install a new seal, re-assemble the camshaft cover, clean the engine compartment, and if necessary
replace the noise insulation (if it is full of oil).
Note:
Do not replace the Audi valvelift system actuator(s) with an O-ring seal when the leak has been
determined to be around the area of the injector(s).
Warranty
Claim Type:
• 110 up to 48 Months/50,000 Miles.
• G10 for CPO Covered Vehicles – Verify Owner.
•
If the vehicle is outside any warranty, this Technical Service Bulletin is
informational only.
Service Number:
• 1580 (Leak on injector)
• 1551 (Leak on Audi valvelift system actuator)
Page 7 of 11
© 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
Damage Code:
• 0050 (1580 only)
• 0010 (1551 only)
Labor Operations:
For 3.0L engines
Adjusting mechanism
1551 1943 (Left)
See SRT with
for Valvelift system
1551 1944 (Right)
associated operations
1551 1999 (Q8)
110 TU (Right)
remove + reinstall (if
AVS leak location)
170 TU (Left)
Camshaft adjusters
1584 1943 (Left)
See SRT with
remove + reinstall (if
1584 1944 (Right)
associated operations
Camshaft housing
1503 1993 (Left)
See SRT with
remove + reinstall (if
1503 1994 (Right)
associated operations
1083 2999
40 TU
Radar sensor adjust (if
9163 1650
See SRT with
applicable)
Or
associated operations
injector leak location)
injector leak location)
Clean engine cover,
heat shield, upper and
engine
9163 1550
Preparation Driver
9092 0050
Assist Calibration (if
See SRT with
associated operations
applicable)
Vehicle front + rear
4495 0100
check (if applicable)
Overhead view camera
See SRT with
associated operations
9083 1500
adjusted (if applicable)
See SRT with
associated operations
Page 8 of 11
© 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
For 2.9L engines (RS models)
Adjusting mechanism
1551 1945 (Left)
See SRT with
for Valvelift system
1551 1946 (Right)
associated operations
6329 1900
See SRT with
remove + reinstall (if
AVS leak location)
Front bumper cover
remove + reinstall (if
associated operations
injector leak location)
Front bumper remove + 6310 1950
See SRT with
reinstall (if injector leak
associated operations
location)
Radiator remove +
1970 1995
reinstall (if injector leak
See SRT with
associated operations
location)
Camshaft adjusters
1584 1995 (Left)
See SRT with
remove + reinstall (if
1584 1996 (Right)
associated operations
Camshaft housing
1503 1995 (Left)
See SRT with
remove + reinstall (if
1503 1996 (Right)
associated operations
1083 2999
40 TU
9083 1500
See SRT with
injector leak location)
injector leak location)
Clean engine cover,
heat shield, upper and
engine
Overhead view camera
adjusted (if applicable)
Radar sensor adjust (if
associated operations
9163 1650
applicable)
See SRT with
associated operations
Page 9 of 11
© 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
Preparation Driver
9092 0050
See SRT with
Assist Calibration (if
associated operations
applicable)
Vehicle front + rear
4495 0100
See SRT with
check (if applicable)
Diagnostic Time:
GFF (if applicable)
associated operations
0150 0000
Time stated on the
diagnostic protocol
(Max 50 TU)
Road test prior to
No allowance
0 TU
0121 0004
10 TU
service procedure
Road test after service
procedure
Claim Comment:
As per TSB 2053278/9
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
See ETKA
Fasteners, Bolts, Nuts, and Screws as needed per the See ETKA/ELSA
Repair Manual
06M906048F
Solenoid valve (if applicable)
01
06M103650D
Gasket Cylinders 1-3 (if applicable)
01
06M103649D
Gasket Cylinders 4-6 (if applicable)
01
G 12E050S0
Coolant concentrate 1.5L (if applicable)
02
Page 10 of 11
© 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
Additional Information
All parts and service references provided in this TSB (2053278) are subject to change and/or removal.
©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 11 of 11
© 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.