Step 6: Perform a top engine clean using SOA868V9160 Top Engine Cleaner and companion
tool #SOA868V9430. When completed, road test the vehicle then perform Step 5
again and re-evaluate the results. If the results are now consistent between cylinders,
the leakage was not a result of any mechanical concern. Reinstall the spark plugs to
complete the procedure. If there is still significant or unusual leakage past the intake
and/or exhaust valves, it is not related to this campaign. Diagnose and repair the
engine following the procedures in the applicable Service Manual. If there
is still significant or unusual leakage into the crankcase, proceed with replacing the
engine assembly (refer to Part 3 of Flow Chart).
Source of Compressed Air Loss:

Probable Cause:

Throttle Body

Intake Valve(s) Sealing *

Exhaust (Tail Pipe)

Exhaust Valve(s) Sealing *

Crankcase (Oil Fill / Dipstick Tube)

Piston Ring Sealing / Possible Ring Land(s) Damage

*This finding is not related to the condition(s) addressed by this bulletin. Engine replacement is not required.

When diagnosis and/or leak-down testing has confirmed either spark plug damage and/
or cylinder leakage into the crankcase, install a complete engine assembly (if available)
following the procedure in the applicable Service Manual (refer to Part 3 of the Flow Chart).
If a complete engine assembly is not available (and will be on backorder for 7 days or more),
a new short block assembly must be used for the repair along with replacing the affected
cylinder head (or heads) as required and described below.
Continued...
Bulletin Number: WQW-58R; Revised: August 14, 2017

Page 6

Replacement Cylinder Heads
If diagnosis and/or leak-down testing has confirmed either spark plug damage and/or cylinder
leakage into the crankcase, a complete “loaded” cylinder head assembly should be installed
for the corresponding “side” of the engine identified as having damage along with the new
short block assembly. EXAMPLE: If spark plug damage and/or leakage into the crankcase
has identified an issue in cylinder #3, the 1-3 (right side) cylinder head must also be replaced
along with the new short block assembly. Always review with your Parts Department and the
applicable Service Manual to determine any other components which may be required.
If a complete “loaded” cylinder head assembly is not available, the replacement cylinder head
must be “built” using a new “bare” head (bare heads include new valve guides) following the
procedure in the applicable Service Manual. The valve train components are to be changed
over from the original head assembly EXCEPT for the intake and exhaust valves from any
affected cylinder(s) which must be replaced. The remaining valve train components (spring
seats, valve springs, retainers and locks) along with the remaining miscellaneous components
are all to be reused. A “bare” head will also require installation of new valve stem oil seals
during reassembly. Always review with your Parts Department and the applicable Service
Manual to determine any other components which may be required.
Because some engine assemblies are no longer in active production or available, the following
substitutions must be used to complete those repairs if available.
REMINDER: Engine assembly replacement will only be required in a very limited number
of cases.
•

For 2014-15 Forester XT- order the 2017MY Forester XT Engine assembly p.n.
10100CC130 and replace the engine harness included on the 2017MY engine with a
2014/15MY engine harness, p.n. 24020AF363. If a new harness is unavailable, swap
the original onto the new engine assembly to minimize downtime. IMPORTANT:
Once the new harness is received, it MUST be installed ASAP.

•

For 2015MY WRX, order the 2016MY WRX engine assembly as there is no
difference between 2015-16MY engines. Order p.n. 10100CA550 for MT models and
p.n. 10100CA560 for CVT models.

WQW-58R Parts List**
2014-15 Forester XT

2015 WRX
Complete Engine Assembly

10100CC130 ** SEE “APPENDIX A” on Page 8

10100CA560 For CVT or 10100CA550 For 6MT

NOTE: For 2014-15 Forester, replace the engine
NOTE: 2015-2016 WRX engine assemblies are the
harness on 10100CC130 engine assy. or any Short Block
same part number. No harness change required.
with 2014-2015 engine harness 24020AF363.
Exhaust Gaskets
14038AA040- Qty. 2 Up to May, 2015 or 14038AA050 - Qty. 2 May, 2015 and Forward
If May, 2015 production date, decode by VIN
OR, when Engine Assembly is not available:
Short Block Assembly
Short Block Assembly
2014-2015 Forester - 10103AC310
2015 WRX CVT and 6MT - 10103AC480
Engine Gasket &Seal Kit
All Models - 10105AB560
“Loaded” Cylinder Head
2014 Forester - 11018AA130 RH Side
2015 WRX CVT - 11018AA440 RH Side
2014 Forester - 11019AA110 LH Side
2015 WRX CVT - 11019AA440 LH Side
2015Forester - 11018AA210 RH Side
2015 WRX 6MT - 11018AA430 RH Side
2015 Forester - 11019AA210 LH Side
2015 WRX 6MT - 11019AA430 LH Side
OR, when “Loaded” Cylinder Head(s) are not available:
“Bare” Cylinder Head
11039AC400 RH Side
11063AB720 LH Side

Bulletin Number: WQW-58R; Revised: August 14, 2017

Continued...
Page 7

PLUS (items not included in Engine Gasket & Seal Kit)
Intake Gaskets
14035AA630 - Qty. 4
Exhaust Gaskets
14038AA040- Qty. 2 Up to May, 2015 or 14038AA050 - Qty. 2 May, 2015 and Forward
If May, 2015 production date, decode by VIN
Liquid Gasket
All Models- SOA5499100
Miscellaneous Related Hard Parts When Replacing Short Block and Cylinder Head(s)
17540AA370 Fuel Delivery Pipe Qty. 1
17540AA380 Fuel Delivery Pipe Qty. 1
16698AA110 O-Ring, Injector Qty. 4
16698AA160 O-Ring, Injector Qty. 4
16608AA070 Seal- Fuel Injector Qty. 8
16677AA050 Ring- Back-Up Qty. 4
16677AA060 Ring- Back-Up Qty. 4
22401AA830 Spark Plug Qty. 4

“APPENDIX A” IMPORTANT INFORMATION REGARDING RETROFITTING
THE P.N. 10100CC130 ENGINE ASSEMBLY TO 2014-15MY FORESTER TURBO
WQW-58 Engine Assembly “Retrofit” Parts List
Part Number:

Description:

Quantity:

11821AA660

CONN PCV

1

11849AA160

PIPE ASSY- PCV

1

99081AA370

HOSE COMPL- VACUUM

1

13144AA200

GUIDE- CHAIN

1

805915040

HOSE CLP- 15

1

99081AA370

HOSE CP- VACUUM

1

805918010

HOSE CLAMP

O92315002

5
1

13320AA021

SPKT AY CMS, INT RH

1

13321AA011

SPKT AY CMS, EXH RH

1

13322AA031

SPKT AY CMS, INT LH

1

13323AA011

SPKT AY CMS, EXH RH

1

22318AA060

PIPE- VAC

1

909205046

CLIP

1

22433AA691

COIL ASSY- IGN

4

24020AF363

HARN- ENG

1

14738AA130

GSKT- EGR PIPE

14738AA170

1
1

14035AA620

GSKT- INTAKE MAN

8

15090KA000

O-RING- OIL LEVEL

1

806939060

1

806912190

O-RING

806924120
806916080

3
1
1

806750080

OIL SEAL

1

14038AA040

GSKT- EXHAUST MAN

2

44011AG000

GSKT- EXH PIPE REAR

1

14497AA030

GSKT- AIR INT DUCT

1

17556AA000

GSKT- UNION BANJO

2

Continued...
Bulletin Number: WQW-58R; Revised: August 14, 2017

Page 8

**NOTE: Additional parts will be needed when performing these repairs. These Parts Lists
are provided as reference only and may not be totally complete depending on the needs of
your specific repair. It is important to anticipate these needs and have all the parts needed to
perform the repair on hand to expedite the repair and minimize down-time.
NOTE: After uncrating the new engine assembly, always inspect it CLOSELY for any
damage which may have occurred during shipment.
Additional Tips:
•

When installing the new engine harness assembly:
o Use caution when removing the foam insulators from the high-pressure
fuel piping.
o The EGR assembly does not have to be removed as the new harness can
CAREFULLY be fed under the large EGR pipe as shown in the photos below.

•

After removing the “old” timing chain guide and sprockets, mark them accordingly so
they do not get confused with the new replacement parts.

•

Always confirm the reluctor between the flex plate and crankshaft flange on the new
engine matches the original BEFORE reinstalling the assembly.

•

Confirm the new engine assembly has both alignment dowels installed (and none in the
transmission).

Step 7: When the required repairs are complete, confirm the running condition of the engine.
If the engine runs normally, no further action is required. Affix the campaign sticker to the
radiator support and release the vehicle.
Continued...
Bulletin Number: WQW-58R; Revised: August 14, 2017

Page 9

VERY IMPORTANT: If the engine continues to exhibit any idle roughness after completing
the testing and this ECM reprogramming, confirm your work to ensure the ignition coils and
spark plugs are correctly installed and undamaged. If any concerns are found, correct as
needed then check the engine’s running condition again. If any concerns persist, collect and
save an SSM IV data file showing the condition. While recording, be sure to mark the data
whenever any roughness occurs. Share the data file with the SOA Technical Helpline through
the SDS notebook. Include any FFD should a DTC set during these checks. Follow up with
the SOA Technical Helpline to review the saved data before proceeding further.
NOTES:
SOA now highly recommends connecting the Midtronics GR8 Diagnostic Battery Charger to
the vehicle and utilizing the Power Supply Mode feature anytime a vehicle control module is
being reprogrammed. Once the GR8 is connected to the vehicle, as long as the battery is fully
charged, it takes less than 3 minutes to boot-up the charger, select the Power Supply Mode,
and have the battery voltage stabilized and ready for reprogramming.VERY IMPORTANT:
This information is applicable to the Midtronics GR8 Diagnostic Battery Charger ONLY. It
does not apply to any other brand / type of “generic” battery charger whatsoever. ONLY the
GR8 and its Power Supply Mode feature has been tested and approved by Subaru of America,
Inc. (SOA).
•

If the GR8 indicates the vehicle’s battery must be charged, charge the battery using
the GR8 before proceeding to reprogram the vehicle while using the Power Supply
Mode.

•

Control module failures as a result of battery discharge during reprogramming are
not a matter for warranty. Should any DTCs reset after the reprogramming update is
performed, diagnose per the procedure outlined in the applicable Service Manual.

NOTE: The pack file listings provided in this bulletin are the latest available at the time of
publishing. Updates are often released thereafter without revision to the original bulletin.
For this reason, it is critical to always have the latest version of SSM4 software installed on
your system. You can confirm if a later version is available by entering the CID listed in this
bulletin into FlashWrite. If a newer CID is shown as available in FlashWrite, reprogram using
that file.
STATE EMISSION TESTING ADVISORY
After ECM reprogramming, the OBD system’s readiness code monitors will reset to
“incomplete”. Normally, the vehicle needs to be driven under a variety of conditions before
the readiness code monitors will indicate “complete”. (See State I/M Program Advisory
Bulletin number 11-120-12R, dated 2-02-2016 for details.)
SERVICE PROGRAM IDENTIFICATION LABEL
Type or print the necessary information on a Service Program identification label. The
completed label should be attached to the vehicle’s upper radiator support.
Additional labels are available through normal parts ordering channels. The part number is
MSA6P1302. Ordering qty 1 = 1 sheet of 20 labels.

Continued...
Bulletin Number: WQW-58R; Revised: August 14, 2017

Page 10

PART NUMBER

APPLICABILITY

DESCRIPTION

ORDER QUANTITY

MSA6P1302

All models

Campaign Completion Labels
(contains one sheet of 20 labels)

1

CALIFORNIA “VEHICLE EMISSION RECALL - PROOF OF CORRECTION”
CERTIFICATE
The California Air Resources Board and the Department of Motor Vehicles Registration/
Recall Program requires that all emission related Recall/Campaign or Service Program
repairs be completed before a vehicle registration is renewed. Please provide owners of
vehicles registered in the state of California a completed “Vehicle Emission Recall - Proof of
Correction” certificate. Vehicle owners should be advised to retain this certificate because the
California Department of Motor Vehicles may require they provide proof this service program
repair has been completed.
Additional certificates are available through normal parts ordering channels using part number
MSA6P1301. Quantity 1 = 1 booklet of 50 certificates.

Continued...
Bulletin Number: WQW-58R; Revised: August 14, 2017

Page 11

CLAIM REIMBURSEMENT AND ENTRY PROCEDURES
Credit to perform this service program will be based on the submission of properly
completed repair order information. Retailers may submit claims through subarunet.com.
Enter the Recall Claim the same day as the recall is performed to update the recall status to
“Completed”.
VERY IMPORTANT: The coding provided below is to be used ONLY when the customer
declines continuation of this campaign procedure after vehicle is found to have ECM and/or
engine modifications which preclude completion of this campaign. DETAILED Technician’s
notes and a completed Vehicle Modification and Accident Damage form submission are
required to document modifications found to be preventing completion of this campaign.

OUTCOME
Campaign incomplete
due to modifications

VEHICLES WITH MODIFICATIONS
LABOR
LABOR
DESCRIPTION
OPERATION #
MODIFIED VEHICLE
CID AND CVN CHECKS

B114-660

MODIFIED VEHICLE
ENGINE CHECKS

C114-661

LABOR
TIME

CLAIM
TYPE

CAMPAIGN
CODE

PA

BAX-58

0.4
0.4

ECM / Engine Inspection ONLY, NO Repairs Made.
WQW-58 SERVICE PROGRAM WITH NO ENGINE OR PART REPLACEMENT
OUTCOME

LABOR
DESCRIPTION

LABOR
OPERATION #