Subaru Subaru Forester 2014-2018 TR690 Transmission Transmission Specifications
Subaru Subaru Forester 2014-2018

Subaru Subaru Forester 2014-2018 TR690 Transmission Specifications

This document provides detailed specifications for the TR690 transmission used in the 2014-2018 Subaru Forester. It covers critical technical details such as gear ratios, torque capacity, fluid type, and service intervals. These specifications are essential for mechanics, enthusiasts, and owners to understand the transmission's performance, maintenance requirements, and compatibility with aftermarket upgrades. The document also includes troubleshooting tips and repair guidelines, making it a valuable resource for ensuring the longevity and optimal performance of the vehicle. Whether you're performing routine maintenance or diagnosing transmission issues, this guide offers comprehensive insights to support your efforts.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the TR690 transmission used in the 2014-2018 Subaru Forester. It is designed to assist technicians, engineers, and enthusiasts in understanding the transmission's features, maintenance requirements, and performance characteristics. Use this guide to navigate through sections, search for specific details, and reference key specifications quickly.

How to Use

Use the search functionality to locate specific terms or phrases within the document. Enter keywords related to the TR690 transmission, such as 'gear ratios' or 'fluid capacity,' to find relevant information quickly.

Navigate through the document by scrolling through the sections or using the table of contents. Each major section is divided into subsections, making it easy to find detailed information about specific aspects of the TR690 transmission.

Key Specifications

Transmission Type

6-speed manual

Torque Capacity

280 Nm

Fluid Capacity

4.2 liters

Weight

45 kg

Gear Ratios

3.454 to 0.582

Available Specifications

Transmission Design

This section covers the design and architecture of the TR690 transmission, including its construction, materials, and layout. Learn about the transmission's compact design, lightweight components, and how it integrates with the Subaru Forester's drivetrain.

Gear Configuration
  • 6-speed manual transmission
  • Front-wheel drive and all-wheel drive compatibility
  • Helical-cut gears for reduced noise
  • Dual-cone synchronizers for smoother shifts
  • Compact design for improved fuel efficiency
  • Lightweight aluminum housing
Internal Components
  • High-strength steel gears
  • Precision-machined shafts
  • Durable bearings for reduced friction
  • Integrated oil pump for lubrication
  • Sealed design for improved durability
  • Thermal management system

Performance Specifications

Explore the performance characteristics of the TR690 transmission, including gear ratios, torque capacity, and shift dynamics. This section provides insights into how the transmission enhances the driving experience of the Subaru Forester.

Gear Ratios
  • 1st gear: 3.454
  • 2nd gear: 1.947
  • 3rd gear: 1.366
  • 4th gear: 0.972
  • 5th gear: 0.738
  • 6th gear: 0.582
Torque Capacity
  • Maximum torque capacity: 280 Nm
  • Optimized for Subaru's 2.0L and 2.5L engines
  • Enhanced clutch durability
  • Smooth torque delivery
  • Low rotational inertia
  • Improved acceleration performance

Maintenance and Service

This section provides guidelines for maintaining and servicing the TR690 transmission. Learn about recommended fluid types, service intervals, and common troubleshooting tips to ensure optimal performance and longevity.

Fluid Requirements
  • Recommended fluid: Subaru Extra MT Fluid
  • Fluid capacity: 4.2 liters
  • Regular fluid checks every 30,000 miles
  • Fluid replacement interval: 60,000 miles
  • Use of synthetic fluids for improved performance
  • Avoid mixing fluid types
Common Issues
  • Grinding noises during shifts
  • Difficulty engaging gears
  • Fluid leaks from seals
  • Worn synchronizers
  • Excessive clutch wear
  • Regular inspection of shift linkage

Transmission Specifications

Overview

Type
CVT (Continuously Variable Transmission)
Configuration
Front-wheel drive and All-wheel drive
Platform
Subaru Global Platform
Material
Aluminum alloy casing
Location
Longitudinal mounting

Dimensions

Length
28.5 inches (72.4 cm)
Width
18.7 inches (47.5 cm)
Height
14.2 inches (36.1 cm)
Weight
145 lbs (65.8 kg)
input Shaft Diameter
1.2 inches (3.05 cm)
Output Shaft Diameter
1.1 inches (2.79 cm)
Fluid Capacity
7.9 quarts (7.5 liters)

Materials

Casing
Aluminum alloy
Gears
High-strength steel
Belts
High-tensile rubber composite
Bearings
Chrome steel

Features

Performance
  • Smooth acceleration
  • Adaptive shift logic
  • Sport mode with paddle shifters
  • Improved fuel efficiency
Technology
  • Lineartronic CVT design
  • Electronic control unit (ECU)
  • Torque converter lock-up
  • Hill descent control
Durability
  • Reinforced steel belts
  • High-temperature fluid
  • Advanced cooling system
  • Sealed components
Drivability
  • Seamless gear transitions
  • Low noise levels
  • Enhanced traction control
  • User-friendly interface

Safety Features

Protection
  • Overheat protection
  • Fluid level monitoring
  • Emergency limp mode
Controls
  • Electronic stability control
  • Traction control system
  • Hill start assist

Comfort Features

Noise Reduction
  • Sound-dampening materials
  • Balanced drive shafts
  • Optimized gear ratios
Smoothness
  • CVT belt design
  • Hydraulic control system
  • Vibration dampers
Convenience
  • Paddle shifters
  • Sport mode selector
  • Adaptive cruise control

Accessories

Upgrades
  • Performance transmission fluid
  • Aftermarket cooling kits
  • Shift enhancement modules
Tools
  • CVT fluid pump
  • Transmission jack
  • Diagnostic scanner
Maintenance
  • Fluid change kits
  • Filter replacements
  • Seal repair kits

Maintenance

interval
Every 60,000 miles or 60 months
Items
  • Fluid replacement
  • Filter inspection
  • Belt tension check
  • Seal inspection
  • ECU diagnostics
Notes
Use only Subaru-approved CVT fluid

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Parts and labor
Powertrain
Miles: 60,000
Years: 5
Coverage: Transmission components
Corrosion
Miles: Unlimited
Years: 5
Coverage: Rust perforation
Emissions
Miles: 80,000
Years: 8
Coverage: Emission-related parts

Production Details

Manufacturer
Subaru Corporation
Manufacturing Process
  • Precision machining
  • Automated assembly
  • Quality testing
Quality Control
Testing: Durability tests, Performance benchmarks, Environmental simulations
Standards: ISO 9001 certified
Sustainability
  • Recycled materials
  • Energy-efficient production
  • Eco-friendly fluids
Production Metrics
Units Per Year: 500,000
Defect Rate: Less than 0.1%

Service Information for tr690 transmission Service

Maintenance and service requirements specific to this component

30,000
30
  • Inspect CVT fluid level
  • Check for leaks
  • Inspect drive belts
  • Perform ECU diagnostics

Ensure vehicle is on level ground during inspection

60,000
60
  • Replace CVT fluid
  • Inspect and replace filters
  • Check belt tension
  • Inspect seals and gaskets

Use only Subaru-approved CVT fluid

120,000
120
  • Perform full transmission inspection
  • Replace drive belts if necessary
  • Check and replace worn components
  • Test transmission performance

Major service may require specialized tools

Common Questions

Find answers to common questions about torque specifications

Q1

Is the TR690 transmission compatible with all 2014-2018 Subaru Forester models?

The TR690 transmission is compatible with most 2014-2018 Subaru Forester models, particularly those with the 2.5L FB25 engine. However, compatibility may vary depending on the trim level and drivetrain (e.g., AWD). Always verify your vehicle's specifications using the VIN or consult a Subaru dealer to ensure proper fitment.

Q2

What are the maintenance requirements for the TR690 transmission?

The TR690 transmission requires regular maintenance, including fluid changes every 30,000 to 60,000 miles, depending on driving conditions. Inspect for leaks, ensure proper fluid levels, and replace the transmission filter as needed. Adhering to Subaru's recommended service intervals is crucial for optimal performance and longevity.

Q3

How do I install or replace the TR690 transmission in a 2014-2018 Subaru Forester?

Replacing the TR690 transmission involves lifting the vehicle, removing the driveshaft, exhaust components, and crossmember, and disconnecting the transmission mounts. Carefully lower the old transmission and install the new one, ensuring proper alignment. Reconnect all components, refill with the correct transmission fluid, and test for proper operation. Professional installation is recommended.

Q4

What should I do if my TR690 transmission is not shifting smoothly?

If the TR690 transmission is not shifting smoothly, check the transmission fluid level and condition. Low or contaminated fluid can cause shifting issues. Inspect for error codes using a diagnostic tool and address any mechanical or electrical faults. If problems persist, consult a Subaru specialist for further diagnosis.

Q5

How can I optimize the performance of my TR690 transmission?

To optimize TR690 transmission performance, use Subaru-approved transmission fluid, avoid aggressive driving, and ensure regular maintenance. Consider upgrading the transmission cooler for heavy-duty use. Properly calibrate the transmission control module (TCM) for smoother shifts and improved responsiveness.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2014-2018 Subaru Forester Service Manual

Coming Soon

Comprehensive guide covering maintenance, repair, and troubleshooting for the 2014-2018 Subaru Forester, including the TR690 transmission.

Subaru Technical Service Bulletin for TR690 Transmission

Coming Soon

Latest updates and fixes for the TR690 transmission, addressing common issues and providing repair recommendations.

Subaru Forester Parts and Accessories Catalog

Coming Soon

Detailed catalog of OEM and aftermarket parts for the 2014-2018 Subaru Forester, including transmission components.

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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