2016 Subaru WRX STI

2016 Subaru WRX STI

Overview

The 2016 Subaru WRX STI, a performance-oriented compact sedan, is known for its potent turbocharged engine, advanced all-wheel-drive system, and engaging driving dynamics. It appeals to enthusiasts seeking a capable daily driver with track-ready potential. While generally robust, like any performance vehicle, it can experience specific issues related to its high-strung powertrain and performance-oriented components. This analysis focuses on documented technical reliability concerns beyond routine maintenance, providing insights into potential areas of attention for owners and prospective buyers.

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Engine

2.5L Turbocharged Boxer (EJ257)

Piston Ring Land Failure

• Symptoms: Excessive oil consumption, blue smoke from exhaust, loss of power, potential engine knock.
• Solution: Engine rebuild or replacement with forged pistons.
• Cost: $3,000 - $7,000+

Head Gasket Failure

• Symptoms: Coolant loss, white smoke from exhaust, engine overheating, milky oil.
• Solution: Replacement of head gaskets and potentially head machining.
• Cost: $1,500 - $3,000

Turbocharger Failure

• Symptoms: Loss of boost, whistling noises, smoke from exhaust, reduced engine performance.
• Solution: Turbocharger replacement or rebuild.
• Cost: $1,000 - $2,500

Transmission

6-Speed Manual Transmission

Clutch Wear

• Symptoms: Slipping clutch, difficulty shifting gears, burning smell.
• Solution: Clutch replacement.
• Cost: $800 - $1,500

Synchro Wear

• Symptoms: Grinding when shifting into certain gears, difficulty engaging gears.
• Solution: Transmission rebuild with new synchronizers.
• Cost: $2,000 - $4,000

Suspension

Performance Suspension

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Electrical

Standard Electrical System

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Exterior

Body and Trim

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Interior

Cabin Components

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

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Summary Verdict

The 2016 Subaru WRX STI is a highly capable performance car, but its high-performance nature means certain components are more susceptible to wear and potential failure under demanding use. The 2.5L turbocharged engine, while powerful, has documented issues with piston ring lands and head gaskets, particularly if not maintained meticulously or if subjected to aggressive driving without proper cooling. The manual transmission can also experience clutch and synchronizer wear. While other systems like suspension, electrical, exterior, and interior are generally reliable, owners should be aware of the potential for engine and transmission issues, especially on higher-mileage or heavily used examples. Regular maintenance and mindful driving are crucial for longevity.