NHTSA ID Number: 10234839
Manufacturer Communication Number: 169013R
Summary
Design Change to Lock-Up Type Torque Converter
NUMBER: 16-90-13R
DATE: 01/06/14
REVISED: 05/07/14
| APPLICABILITY: | 2010-12 MY Legacy and Outback Models Equipped with CVT Transmission |
| SUBJECT: | Design Change to Lock-Up Type Torque Converter |
INTRODUCTION
This bulletin announces the availability of a countermeasure torque converter assembly to address a customer concern of very low engine RPM when coming to a stop. The condition is similar to coming to a stop in a manual transmission equipped vehicle without depressing the clutch pedal. Thrust washer wear inside the torque converter can cause restriction of the oil passage used to bleed off lock-up clutch application pressure. The result is either a delayed (momentary low engine rpm) or no lock-up pressure release. The thrust washer has been changed from a solid bushing-type to a needle bearing type.
COUNTERMEASURE IN PRODUCTION
The countermeasure torque converter was incorporated into production October 1, 2013 starting with transmission #633208. Remanufactured CVT assemblies with a production date of 12/31/2013 or later as indicated on the shipping container label include this revised torque converter.
PART INFORMATION
| PART NUMBER | DESCRIPTION | QUANTITY |
| 31100AB171 | Torque Converter Assy. | 1 |
| 806735290
Last update on 2026-06-16 / Affiliate links / Images from Amazon Product Advertising API | Differential Side Seal (L/H) | 1 |
| 806735300
Last update on 2026-06-16 / Affiliate links / Images from Amazon Product Advertising API | Differential Side Seal (R/H) | 1 |
| 28333SA000 | Axle Shaft C-Clip | 2 |
| SOA635043 | CVT Fluid (Quart) | 4 |
SERVICE PROCEDURE / INFORMATION
- Always verify the customer concern before proceeding with any diagnostics and / or repairs.
- Diagnose any stored DTCs per the applicable Service Manual.
- Perform a line pressure test to rule out other possible pressure-related causes for the condition.
- After performing the applicable diagnostics, replace the torque converter assembly following the procedure outlined in the appropriate Service Manual.
- Both front differential side (axle shaft) oil seals and axle shaft c-clips are one-time use items and must be replaced as part of this repair.
- In rare instances, should the condition persist after replacing the torque converter, the valve body assembly may also require replacement.
- Before releasing the vehicle, always confirm the CVT has been refilled to the proper level by following the procedure outlined in the appropriate Service Manual.
REMINDER: In the event the valve body requires replacement, the Learning Control procedure must be performed after installation to complete the repair.
6 Affected Products
Vehicles
1 Associated Document
Manufacturer Communications
NUMBER: 16-90-13R
DATE: 01/06/14
REVISED: 05/07/14
MC-10234839-9999.pdf 266.815KB
NHTSA ID Number: 10235836
Manufacturer Communication Number: 169013
Summary
Design Change to Lock-Up Type Torque Converter
1 Associated Document
Manufacturer Communications
NUMBER: 16-90-13
DATE: 01/06/14
MC-10235836-9999.pdf 445.895KB
- 6 Quarts of genuine Subaru
CVTF-II fluid - SOA427V1660 x6 This is green fluid
- 2013-2019 Crosstrek with CVT NON HYBRID, 2014-2016 Crosstrek CVT HYBRID
- 2014-2023 Forester 2.5 Naturally Aspirated with CVT NON TURBO (NOT FOR WILDERNESS)
- 2010-2019 Legacy 2.5 FB25 with CVT, 2010-2014 Legacy 3.6 with CVT, 2010-2019 Outback 2.5 FB25 with CVT, 2010-2014 Outback 3.6 with CVT, 2012-2023 Impreza 2.0 non turbo with CVT
- [Fine Tune Your Vehicle]: Automatic and manual transmission fluid provides hydraulic pressure, lubrication, and friction to your vehicle’s engine; Use the Idemitsu CVT Type SB2 CVT Transmission Fluids 5 Quart Bottle to top off your vehicle and keep you on the road longer
- [Smoother Shifting]: Continuously variable transmission oil will help your gears shift properly to prevent hard or jerky shifting; Designed with frictional properties for superior performance and high torque
- [Extend Engine Life]: Precisely engineered transmission CVT fluid resists buildup; Anti-wear technology protects your belts, gears, and pullies, while high viscosity properties withstand intense temperatures
- [For Your Vehicle]: SB2 CVT fluid is compatible with Subaru
TR580 transmissions; Refer to owner manual specifics to ensure compatibility; CVT transmission oil is crafted to meet Type CVTF-II specifications - [Contents]: Vehicle lubricant package includes 1 bottle of Idemitsu SB2 CVT oil transmission fluid; 1 bottle of 5 quart (4.7L) CVT trans fluid makes refilling your vehicle more convenient
- Compatible with Subaru
CVTs: Specifically designed for Subaru
continuously variable transmissions, particularly TR580, ensuring precise performance with CVTF II specification. Ideal for automatic and manual transmission systems requiring hydraulic pressure, lubrication, and friction. - Smooth Shifting Performance: Designed with precise frictional properties to support smooth, consistent gear shifts, preventing hard or jerky transitions, and ensuring superior performance in high-torque applications.
- Extended Transmission Life: Advanced formulation resists buildup and uses anti-wear technology to protect belts, gears, and pulleys, while high viscosity properties withstand intense temperatures.
- Optimal Viscosity Stability: The fluid maintains excellent viscosity at both high and low temperatures, ensuring efficient lubrication and friction control even under extreme conditions.
- Certified Quality: Manufactured to meet the highest quality standards, backed by ISO certifications, and trusted by leading automotive manufacturers for reliable performance and protection.
- 8 Quarts of genuine Subaru
CVTF-II fluid - SOA427V1660 x8 This is green fluid
- 2013-2019 Crosstrek with CVT non hybrid, 2014-2016 Crosstrek CVT hybrid
- 2014-2023 Forester 2.5 Naturally Aspirated with CVT non turbo (not for wilderness)
- 2010-2019 Legacy 2.5 FB25 with CVT, 2010-2014 Legacy 3.6 with CVT, 2010-2019 Outback 2.5 FB25 with CVT, 2010-2014 Outback 3.6 with CVT, 2012-2023 Impreza 2.0 non turbo with CVT
Last update on 2026-05-27 / Affiliate links / Images from Amazon Product Advertising API
SEOCONTENT-START
Bulletin Number: 16-90-13R; Date: 05/07/14 Page 1 INTRODUCTION This bulletin announces the availability of a countermeasure torque converter assembly to address a customer concern of very low engine RPM when coming to a stop. The condition is similar to coming to a stop in a manual transmission equipped vehicle without depressing the clutch pedal. Thrust washer wear inside the torque converter can cause restriction of the oil passage used to bleed off lock-up clutch application pressure. The result is either a delayed (momentary low engine rpm) or no lock-up pressure release. The thrust washer has been changed from a solid bushing-type to a needle bearing type. COUNTERMEASURE IN PRODUCTION The countermeasure torque converter was incorporated into production October 1, 2013 starting with transmission #633208. Remanufactured CVT assemblies with a production date of 12/31/2013 or later as indicated on the shipping container label include this revised torque converter. PART INFORMATION PART NUMBER DESCRIPTION QUANTITY 31100AB171 Torque Converter Assy. 1 806735290 Differential Side Seal (L/H) 1 806735300 Differential Side Seal (R/H) 1 28333SA000 Axle Shaft C-Clip 2 SOA635043 CVT Fluid (Quart) 4 NUMBER: 16-90-13R DATE: 01/06/14 REVISED: 05/07/14 APPLICABILITY: 2010-12 MY Legacy and Outback Models Equipped with CVT Transmission SUBJECT: Design Change to Lock-Up Type Torque Converter SERVICE BULLETIN ATTENTION: GENERAL MANAGER q PARTS MANAGER q CLAIMS PERSONNEL q SERVICE MANAGER q IMPORTANT – All Service Personnel Should Read and Initial in the boxes provided, right. Continued… 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” 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. Bulletin Number: 16-90-13R; Date: 05/07/14 Page 2 SERVICE PROCEDURE / INFORMATION • Always verify the customer concern before proceeding with any diagnostics and / or repairs. • Diagnose any stored DTCs per the applicable Service Manual. • Perform a line pressure test to rule out other possible pressure-related causes for the condition. • After performing the applicable diagnostics, replace the torque converter assembly following the procedure outlined in the appropriate Service Manual. • Both front differential side (axle shaft) oil seals and axle shaft c-clips are one-time use items and must be replaced as part of this repair. • In rare instances, should the condition persist after replacing the torque converter, the valve body assembly may also require replacement. • Before releasing the vehicle, always confirm the CVT has been refilled to the proper level by following the procedure outlined in the appropriate Service Manual. REMINDER: In the event the valve body requires replacement, the Learning Control procedure must be performed after installation to complete the repair. WARRANTY / CLAIM INFORMATION For vehicles within the Basic New Car Limited and / or Powertrain Warranty period, this repair may be claimed using the following information: LABOR DESCRIPTION LABOR OPERATION # FAIL CODE LABOR TIME CVT Transmission R&R B303-001 LAA-48 3.4 Torque Converter R&R C303-122 0.1 CVT Line Pressure Testing C303-701 0.6 IF VALVE BODY NEEDS TO BE REPLACED AFTER TORQUE CONVERTER REPLACEMENT CVT Valve Body Replace B303-841 MPO-48 1.2 CVT Line Pressure Testing C303-701 0.6 Up to 4 quarts of CVT Transmission Fluid, p.n. SOA635043 can be claimed for torque converter replacement.
SEOCONTENT-END
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