ATTENTION:
GENERAL MANAGER

q

PARTS MANAGER

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CLAIMS PERSONNEL

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IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.

SERVICE MANAGER

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© 2024 Subaru of America, Inc. All rights reserved.

SERVICE INFORMATION BULLETIN
APPLICABILITY:

All FA and FB Engines

NUMBER: 02-192-24
DATE:

SUBJECT:

09/26/24

Engine Oil Leak Diagnostic Procedures

INTRODUCTION:
This Service Information Bulletin announces the diagnostic procedures to be followed when
diagnosing engine oil leakage on FA and FB type engines. The procedures outlined in this bulletin
were designed to enhance accuracy and help prevent any unnecessary service procedures performed.
SERVICE PROCEDURE / INFORMATION:
The initial step required is to narrow down the possible leaking points according to the production
improvement history that can be traced by VIN. The next step is to inspect the status of oil
leakage and/or adhesion to identify the area to be repaired.
Narrowing down the possible leaking points (target of repair parts). Based on research conducted in the
field, Formed In Place Gasket (FIPG/Three Bond) application process in the production line has been
enhanced. When diagnosing a vehicle with alleged oil leakage from the engine, start with finding the place of
leakage by excluding the enhanced points. If FIPG application is confirmed to be required, refer to the

APPENDIX A section of this bulletin for General Guidelines of FIPG Application.

EXAMPLE:

HOW TO USE THE VIN BREAK TABLES:

•

A FORESTER with VIN “JF2SK****M*548715” is currently being inspected.

•

Compare this VIN to those described in the row “FORESTER ” from the rightmost column until you find the VIN break that is lower than the above vehicle (in this
example, it is higher than MH548714 mentioned in the second column from the left.)

•

It is at the bottom of the same row that shows the target (Target B in this case) of what areas
to be inspected. If the searched VIN is lower than any VIN break mentioned in the applicable
row, look at the bottom of the column described as “VINs below the right listed” and find the
target area.

CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD
RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS.
Subaru Service Bulletins are intended for use by professional technicians ONLY. They
are written to inform those technicians of conditions that may occur in some vehicles,
or to provide information that could assist in the proper servicing of the vehicle. Properly
trained technicians have the equipment, tools, safety instructions, and know-how to
do the job correctly and safely. If a condition is described, DO NOT assume that this
Service Bulletin applies to your vehicle, or that your vehicle will have that condition.

Subaru of America, Inc. is
ISO 14001 Compliant
ISO 14001 is the international standard for
excellence in Environmental Management
Systems. Please recycle or dispose of
automotive products in a manner that is friendly
to our environment and in accordance with all
local, state and federal laws and regulations.

Continued...
Bulletin Number: 02-192-24; Date: 09/26/24

Page 1 of 10

VIN BREAK TABLES:
All models except for IMPREZA and GU-Type CROSSTREK
MODEL

VIN Breaks

FORESTER

VINs below the
right listed

JF2SKAFC0
MH548714 -

-

JF2SKADC4
PH468548 -

JF2SKECC3
PH526304 -

WRX

VINs below the
right listed

JF1VA1C67
M9808118 -

-

JF1VBAF64
N9021010 -

JF1VBAN63
P8809139 -

BRZ

-

Lower than the
right

-

JF1ZDBB1X
P9701301 -

JF1ZDBE17
P9705270 -

CROSS TREK

VINs below the
right listed

JF2GTAEC6
NH273291

-

JF2GTHRC4
NH273292 -

JF2GTHMC1
PH258078 -

LEGACY

VINs below the
right listed

4S3BWGP67
M3019868 -

4S3BWGP66
N3013772 -

4S3BWAD65
P3016098 -

4S3BWGG63
P3017099 -

OUTBACK

VINs below the
right listed

4S4BTGLD6
M3216622 -

4S4BTADC7
N3190892 -

4S4BTHTD3
P3199630 -

4S4BTAAC5
P3211391 -

ASCENT

VINs below the
right listed

4S4WMAAD3
M3449565 -

4S4WMAMD8
N3416185 -

4S4WMAKD4
P3424998 -

4S4WMAKD2
P3435661 -

↓

↓

↓

↓

↓

A

B

C

D

E

Areas with factory
C/M

Target

None

Chain Cover-FIPG
(1,3)

Oil Pan-FIPG (5)

Oil Pan UPR-FIPG
(6)

Cam Carrier-FIPG
(2,4)

Inspection Areas

All (1 to 7)

2,4,5,6,7

2,4,6,7

2,4,7

2*,4*,7

NOTE*: See detailed information for AREA 2 and AREA 4.

IMPREZA GK and GT-Type Models
MODEL

VIN Breaks

IMPREZA

VINs below the
right listed

4S3GKAB63
M3606798 -

4S3GKAV66
N3606484 -

4S3GKAD61
P3603206 -

4S3GKAV69
P3605686 -

IMPREZA

VINs below the
right listed

4S3GTAV65
M3715854 -

4S3GTAM66
N3717180 -

4S3GTAV65
P3710044 -

4S3GTAM60
P3718442 -

↓

↓

↓

↓

↓

D

E

A

B

C

Areas with
factory C/M

Target

None

Chain Cover-FIPG
(1,3)

Oil Pan-FIPG
(5)

Inspection
Areas

All (1 to 7)

2,4,5,6,7

2,4,6,7

Cam Carrier-FIPG
Oil Pan UPR-FIPG (6)
(2,4)
2*,4*,6,7

2*,4*,7

NOTE*: See detailed information for AREA 2 and AREA 4.

Continued...
Bulletin Number: 02-192-24; Date: 09/26/24

Page 2 of 10

GU-Type (Japan Production)
MODEL
CROSS TREK
IMPREZA

Target

VIN Breaks
-

-

-

JF1GUABCX
R8255016 -

-

↓

↓

↓

↓

↓

A

B

C

D

E

Areas with
factory C/M

None

Chain Cover-FIPG
(1,3)

Oil Pan-FIPG
(5)

Cam Carrier-FIPG
(2,4)

Oil Pan UPR-FIPG
(6)

Inspection
Areas

-

-

-

2*,4*,7

-

4S4GUHN62
R3700012 -

NOTE*: See detailed information for AREA 2 and AREA 4.
GU-TYPE (SIA Production)
MODEL
CROSS TREK
IMPREZA

VIN (Old New)
-

-

-

-

↓

↓

↓

↓

Target

A

B

C

D

E

Areas with
factory C/M

None

Chain Cover-FIPG
(1,3)

Oil Pan-FIPG
(5)

Cam Carrier-FIPG
(2,4)

Oil Pan UPR-FIPG
(6)