A1520342053278_3

15 Oil leak from cylinder head - 2.9 and 3.0TFSI only
15 20 34 2053278/3 April 28, 2020. Supersedes Technical Service Bulletin Group 15 number 19-33 dated
February 5, 2019 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
All
2018 - 2019
All
3.0 TFSI
All
2019
All
2.9TFSI
Condition
REVISION HISTORY
Revision
Date
Purpose
3
-
Revised header (Corrected Elsa display issue)
Revised Service (Added DOC-IT note)
2
02/05/2019
Revised Warranty (Added and updated Labor Operations)
1
12/17/2018
Initial publication
Customer statement:
• Oil loss in area around the engine compartment, front end, and underbody.
• Oil level warning (too low).
• Smell from engine compartment.
Workshop findings:
• Leak in area around the cylinder head cover, valve cover, and cylinder head.
• Leak in area around the injector.
• Leak in 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.
Page 1 of 7
© 2020 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
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.
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.
Page 2 of 7
© 2020 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.
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.
Replace the Audi valvelift system
actuator with O ring, clean the
engine compartment and if
necessary replace the noise
insulation (if it is full of oil) (Figure
2).
B. If there is no substantial quantity
of oil below the Audi valvelift
system actuator continue with Step
4!
Figure 2. Oil in the Audi valvelift system.
4. Remove the lower noise insulation.
5. Locate the affected cylinder. Here
oil should have gathered in the
area of the injector (Figure 3) and
the noise insulation should also be
full of oil.
Figure 3. Locating the affected cylinder.
Page 3 of 7
© 2020 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.
6. Remove the cylinder head cover
and the seal (Figure 4).
Figure 4. Remove the cylinder head cover.
7. Inspect the seal groove in the
cylinder head cover and remove
any cast metal debris (Figure 5).
The debris can be removed with a
small flat screwdriver (Figure 6).
Figure 5. Before the repair.
Note:
Make sure not to damage the seal
groove!
For vehicles with a production
date starting 10/01/2018, please
take a picture of the metal
casting debris before filing, and
upload to DOC-IT with the
corresponding VIN of the vehicle.
Figure 6. After the repair.
8. Install a new seal, re-assemble camshaft cover, clean the engine compartment, and if necessary replace the
noise insulation (if it is full of oil).
Page 4 of 7
© 2020 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.
Warranty
Claim Type:
 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.

Service Number:
If vehicle is outside any warranty, this Technical Service Bulletin is informational
only.
 1580 (Leak on injector)
 1551 (Leak on Audi valvelift system actuator)
Damage Code:
 0050 (1580 only)
 0010 (1551 only)
Labor Operations:
For 3.0L engines
Adjusting mechanism for Valvelift system
remove + reinstall (if AVS leak location)
1551 2043 (left)
See SRT
Camshaft adjusters remove + reinstall (if
injector leak location)
1584 1943 (left)
Camshaft housing remove + reinstall (if
injector leak location)
1503 1993 (left)
Clean engine cover, heat shield, upper
and engine
1083 9999
40 TU
Radar sensor adjust (if applicable)
9163 1650
See SRT
1551 2044 (right)
See SRT
1584 1944 (right)
See SRT
1503 1994 (right)
Or
9163 1550
Preparation Driver Assist Calibration (if
applicable)
9092 0050
See SRT
Vehicle front + rear check (if applicable)
4495 0100
See SRT
Overhead view camera adjusted (if
applicable)
9083 1500
See SRT
1551 1945 (left)
See SRT
For 2.9L engines (RS models)
Adjusting mechanism for Valvelift system
remove + reinstall (if AVS leak location)
1551 1946 (right)
Page 5 of 7
© 2020 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.
Front bumper cover remove + reinstall (if
injector leak location)
Diagnostic Time:
Claim Comment:
6329 1900
See SRT
Front bumper remove + reinstall (if injector 6310 1950
leak location)
See SRT
Radiator remove + reinstall (if injector leak 1970 1995
location)
See SRT
Camshaft adjusters remove + reinstall (if
injector leak location)
1584 1995 (left)
See SRT
Camshaft housing remove + reinstall (if
injector leak location)
1503 1995 (left)
Clean engine cover, heat shield, upper
and engine
1083 9999
40 TU
Overhead view camera adjusted (if
applicable)
9083 1500
See SRT
Radar sensor adjust (if applicable)
9163 1650
See SRT
Preparation Driver Assist Calibration (if
applicable)
9092 0050
See SRT
Vehicle front + rear check (if applicable)
4495 0100
See SRT
GFF (if applicable)
0150 0000
Time stated on the
diagnostic
protocol (Max 50
TU)
Road test prior to service procedure
No allowance
0 TU
Road test after service procedure
0121 0004
10 TU
1584 1996 (right)
See SRT
1503 1996 (right)
As per TSB #2053278/3
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.
Page 6 of 7
© 2020 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.
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
Repair Manual
See ETKA/ELSA
06M906048F
Solenoid valve (if applicable)
01
06M103650D
Gasket Cylinders 1-3 (if applicable)
01
06M103649D
Gasket Cylinders 4-6 (if applicable)
01
G 12E100M2
Coolant concentrate 1.5L (if applicable)
04
Additional Information
All parts and service references provided in this TSB (2053278) are subject to change and/or removal.
©2020 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 7 of 7
© 2020 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.