Subaru Subaru Legacy 2015-2019 Suspension Specifications
Explore detailed suspension specifications for the 2015-2019 Subaru Legacy, including struts, shocks, springs, and alignment settings. Perfect for maintenance, repairs, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the suspension system of the 2015-2019 Subaru Legacy. It is designed to assist users in understanding the suspension components, their functions, and key performance metrics. Use this guide to navigate through sections, search for specific details, and reference quick specifications for easy access to critical information.
How to Use
Use the search functionality to quickly locate specific suspension components or terms. Enter keywords such as 'shock absorbers' or 'spring rates' to find relevant sections.
Navigate through the document using the section titles and subsections. Each section is organized by major suspension components, with detailed technical points listed under each subsection.
Key Specifications
Front Suspension Type
MacPherson Strut
Rear Suspension Type
Double-Wishbone
Front Spring Rate
2.5 kg/mm
Rear Spring Rate
2.2 kg/mm
Stabilizer Bar Diameter
22mm
Available Specifications
Front Suspension
The front suspension of the 2015-2019 Subaru Legacy is designed to provide a balance of comfort and handling. This section covers the key components, including the MacPherson strut design, coil springs, and stabilizer bar.
Front Suspension
The front suspension of the 2015-2019 Subaru Legacy is designed to provide a balance of comfort and handling. This section covers the key components, including the MacPherson strut design, coil springs, and stabilizer bar.
MacPherson Strut Design
- Utilizes a single lower control arm for compact design
- Integrated shock absorber and coil spring for space efficiency
- Provides precise steering response and stability
- Reduces unsprung weight for improved ride quality
Coil Springs
- Progressive rate springs for balanced load handling
- Optimized for both comfort and performance
- Made from high-strength steel for durability
- Designed to minimize body roll during cornering
Stabilizer Bar
- 22mm diameter for enhanced rigidity
- Reduces body roll during sharp turns
- Connected to lower control arms for direct force transfer
- Improves overall handling and stability
Rear Suspension
The rear suspension system of the 2015-2019 Subaru Legacy features a double-wishbone design, offering superior handling and ride comfort. This section details the key components, including the rear shocks, coil springs, and trailing arms.
Rear Suspension
The rear suspension system of the 2015-2019 Subaru Legacy features a double-wishbone design, offering superior handling and ride comfort. This section details the key components, including the rear shocks, coil springs, and trailing arms.
Double-Wishbone Design
- Independent suspension for each rear wheel
- Provides superior handling and stability
- Allows for precise wheel alignment adjustments
- Reduces road noise and vibrations
Rear Shocks
- Gas-filled shock absorbers for consistent performance
- Designed to handle varying road conditions
- Enhances ride comfort and control
- Durable construction for long-term reliability
Trailing Arms
- Connects the rear axle to the chassis
- Provides lateral stability during cornering
- Made from lightweight, high-strength materials
- Reduces rear-end squat during acceleration
Suspension Tuning
The suspension tuning of the 2015-2019 Subaru Legacy is optimized for a balance of comfort and sporty handling. This section covers the damping rates, spring rates, and overall suspension geometry.
Suspension Tuning
The suspension tuning of the 2015-2019 Subaru Legacy is optimized for a balance of comfort and sporty handling. This section covers the damping rates, spring rates, and overall suspension geometry.
Damping Rates
- Tuned for a balance of comfort and performance
- Adjustable damping in higher trims for custom settings
- Optimized for varying road conditions
- Reduces impact harshness on rough surfaces
Spring Rates
- Front spring rate: 2.5 kg/mm
- Rear spring rate: 2.2 kg/mm
- Designed for optimal weight distribution
- Enhances cornering stability and ride comfort
Suspension Geometry
- Optimized for minimal camber change during cornering
- Provides consistent tire contact with the road
- Enhances overall handling and stability
- Reduces tire wear over time
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Component Specifications
Overview
- Type
- Independent MacPherson Strut (Front), Independent Double Wishbone (Rear)
- Configuration
- Front and Rear Independent Suspension
- Platform
- Subaru Global Platform
- Material
- High-Strength Steel and Aluminum Alloy
- Location
- Front and Rear Axles
Dimensions
- Front Strut Length
- 22.5 inches (571.5 mm)
- Rear Shock ABSorber Length
- 20.8 inches (528.3 mm)
- Front Spring Rate
- 2.8 kg/mm
- Rear Spring Rate
- 3.2 kg/mm
- Front Sway Bar Diameter
- 24 mm (0.94 in)
- Rear Sway Bar Diameter
- 18 mm (0.71 in)
- Wheel Travel Front
- 6.3 inches (160 mm)
- Wheel Travel Rear
- 6.7 inches (170 mm)
Materials
- Strut Body
- High-Strength Steel
- Spring
- Chromium-Silicon Alloy
- Control Arms
- Aluminum Alloy
- Bushings
- Polyurethane and Rubber Composite
- Sway Bar
- Hollow Steel Tubing
Features
- Damping
-
- Hydraulic Dampers
- Twin-Tube Design
- Variable Damping Rates
- Rebound and Compression Control
- Stability
-
- Electronic Stability Control Integration
- Active Torque Vectoring
- Anti-Roll Bar System
- Dynamic Chassis Control
- Adjustability
-
- Height-Adjustable Spring Perches
- Camber Adjustment Bolts
- Toe Adjustment Capability
- Durability
-
- Corrosion-Resistant Coatings
- Reinforced Mounting Points
- Sealed Bearings
- Performance
-
- Optimized Weight Distribution
- Low Unsprung Weight
- Enhanced Cornering Stability
Safety Features
- Crash Protection
-
- Energy-Absorbing Strut Mounts
- Reinforced Subframe
- Stability
-
- Electronic Stability Program (ESP)
- Traction Control System (TCS)
- Braking
-
- Integrated Brake Force Distribution
- Anti-Lock Braking System (ABS) Compatibility
Comfort Features
- Noise Reduction
-
- Insulated Strut Mounts
- Rubber Isolators
- Ride Quality
-
- Progressive Rate Springs
- Hydraulic Rebound Stops
- Vibration Dampening
-
- Multi-Layer Bushings
- Dynamic Damper Valves
- Adjustability
-
- Driver-Selectable Damping Modes
- Adaptive Suspension System
Accessories
- Upgrades
-
- Performance Coilovers
- Adjustable Sway Bars
- Polyurethane Bushings
- Tools
-
- Strut Spring Compressor
- Alignment Kit
- Torque Wrench Set
- Maintenance
-
- Replacement Strut Mounts
- Shock Absorber Boots
- Grease for Bushings
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect Struts and Shocks for Leaks
- Check Bushings for Wear
- Lubricate Suspension Joints
- Tighten Mounting Bolts
- Inspect Alignment
- Notes
- Replace worn components immediately to prevent further damage.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Parts and Labor
- Powertrain
- Miles: 60,000Years: 5Coverage: Suspension Components
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Rust-Through Damage
- Extended
- Miles: 100,000Years: 7Coverage: Optional Extended Coverage
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Precision CNC Machining
- Robotic Welding
- Heat Treatment
- Electrostatic Painting
- Quality Control
- Testing: Durability Testing, Vibration Analysis, Load Capacity VerificationStandards: ISO 9001 Certification, JIS Quality Standards
- Sustainability
-
- Recycled Materials Usage
- Low-Emission Manufacturing
- Energy-Efficient Processes
- Production Metrics
- Annual Output: 500,000 UnitsDefect Rate: 0.02%Lead Time: 4 Weeks
Service Information for Suspension Service
Maintenance and service requirements specific to the suspension system
- Inspect Struts and Shocks
- Check Bushings and Joints
- Lubricate Suspension Components
- Verify Alignment
- Tighten Mounting Bolts
Ensure all components are free from leaks and excessive wear.
- Replace Worn Bushings
- Inspect and Replace Strut Mounts
- Check Sway Bar Links
- Test Damping Performance
- Verify Torque on All Fasteners
Use OEM parts for replacements to maintain performance.
- Replace Struts and Shocks
- Inspect and Replace Springs
- Overhaul Suspension Joints
- Perform Full Alignment
- Test Electronic Stability Systems
Major service requires specialized tools and equipment.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the compatibility specifications for the 2015-2019 Subaru Legacy suspension system?
What are the compatibility specifications for the 2015-2019 Subaru Legacy suspension system?
The 2015-2019 Subaru Legacy suspension system is compatible with specific OEM and aftermarket parts designed for this model range. Key specifications include a MacPherson strut front suspension and a double-wishbone rear suspension. Ensure compatibility by verifying part numbers and dimensions, as variations exist between trims (e.g., 2.5i vs. 3.6R). Always cross-reference with manufacturer guidelines or consult a Subaru dealer for confirmation.
Q2 What are the maintenance requirements for the 2015-2019 Subaru Legacy suspension?
What are the maintenance requirements for the 2015-2019 Subaru Legacy suspension?
Regular maintenance for the 2015-2019 Subaru Legacy suspension includes inspecting struts, shocks, and bushings every 30,000 miles. Replace worn components promptly to avoid uneven tire wear or handling issues. Lubricate suspension joints annually and check alignment after any significant impact. Follow the owner’s manual for specific intervals and use only Subaru-recommended fluids and parts for optimal performance.
Q3 How do I replace the suspension struts on a 2015-2019 Subaru Legacy?
How do I replace the suspension struts on a 2015-2019 Subaru Legacy?
To replace the suspension struts, first, safely lift the vehicle and remove the wheels. Disconnect the sway bar link and brake line bracket. Unbolt the strut assembly from the steering knuckle and remove it from the vehicle. Compress the spring using a strut compressor tool, then replace the strut. Reassemble in reverse order, ensuring all bolts are torqued to factory specifications (e.g., 129 ft-lbs for strut-to-knuckle bolts).
Q4 What are common troubleshooting steps for suspension issues in the 2015-2019 Subaru Legacy?
What are common troubleshooting steps for suspension issues in the 2015-2019 Subaru Legacy?
Common suspension issues include noise, uneven ride height, or poor handling. Start by inspecting for visible damage to struts, shocks, or bushings. Check for loose or worn components and ensure proper tire pressure. If the issue persists, perform a wheel alignment and test drive. For persistent problems, consult a professional mechanic or Subaru dealer for a detailed diagnostic scan.
Q5 How can I optimize the performance of my 2015-2019 Subaru Legacy suspension?
How can I optimize the performance of my 2015-2019 Subaru Legacy suspension?
To optimize suspension performance, consider upgrading to high-performance struts and shocks for improved handling. Install sway bars to reduce body roll during cornering. Regularly check and maintain tire pressure and alignment. Use lightweight aftermarket wheels to reduce unsprung weight. For off-road or rugged conditions, consider a lift kit designed for the Legacy, ensuring compatibility with other components.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2015-2019 Subaru Legacy Service Manual
Coming SoonComprehensive guide covering suspension system maintenance, repair, and specifications for the 2015-2019 Subaru Legacy.
Subaru Technical Service Bulletin: Suspension Noise
Coming SoonAddresses common suspension noise issues in 2015-2019 Subaru Legacy models, providing diagnostic and repair instructions.
Subaru Legacy Suspension Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket suspension parts compatible with the 2015-2019 Subaru Legacy.
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Technical Information
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