2017 Subaru WRX STI

The 2017 Subaru WRX STI is a performance-oriented sedan known for its turbocharged engine, all-wheel-drive system, and sporty handling. It came standard with a 2.5-liter turbocharged four-cylinder engine producing 305 horsepower and 290 lb-ft of torque, paired exclusively with a 6-speed manual transmission. Owners often praise its engaging driving experience, strong acceleration, and rally-inspired character. Common criticisms include a firm ride, relatively low fuel economy, and some interior components that don’t match the car’s performance aspirations.

Engine

2.5L Turbocharged Engine

• Excessive Oil Consumption
  • Description/Symptoms: Some owners have reported higher than expected oil consumption, requiring frequent top-offs between oil changes. Symptoms include the low oil light illuminating or noticing a significant drop in oil level on the dipstick.
  • Solution: There is no definitive fix, but potential solutions include using a thicker oil, addressing any potential leaks, or, in more severe cases, replacing the piston rings or engine.
  • Estimated Cost to Fix: $1,500 - $6,000+ (depending on the severity and chosen repair)
  • Recalls: None Found
• Ringland Failure
  • Description/Symptoms: Ringland failure in the pistons. Symptoms include knocking sounds, loss of power, and excessive oil consumption.
  • Solution: Engine rebuild or replacement.
  • Estimated Cost to Fix: $6,000 - $10,000+
  • Recalls: None Found
• Air/Oil Separator Issues
  • Description/Symptoms: Some owners have reported that their air/oil separator (AOS) can become clogged or malfunction, leading to increased oil consumption, rough idle, or even engine damage.
  • Solution: Clean or replace the AOS.
  • Estimated Cost to Fix: $300 - $800+ (depending on brand and installation)
  • Recalls: None Found

Transmission

6-Speed Manual Transmission

• Grinding Gears
  • Description/Symptoms: Difficulty shifting into certain gears, especially 2nd and 3rd, accompanied by a grinding noise.
  • Solution: Replacing the affected synchronizers, rebuilding the transmission, or replacing the transmission entirely.
  • Estimated Cost to Fix: $1,500 - $5,000+
  • Recalls: None Found
• Clutch Failure
  • Description/Symptoms: Clutch slippage, difficulty engaging gears, or a chattering noise when engaging the clutch. This can be exacerbated by aggressive driving or modifications.
  • Solution: Replacing the clutch disc, pressure plate, and throwout bearing. It’s also recommended to resurface or replace the flywheel.
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found

Suspension

• Damper Issues
  • Description/Symptoms: Premature wear or failure of the factory dampers, leading to a bouncy or unstable ride.
  • Solution: Replacing the dampers with OEM or aftermarket alternatives.
  • Estimated Cost to Fix: $500 - $2,000+ (depending on brand and installation)
  • Recalls: None Found

Electrical

• Head Unit Problems
  • Description/Symptoms: Malfunctioning touchscreen, Bluetooth connectivity issues, or complete failure of the head unit.
  • Solution: Replacing the head unit with an OEM or aftermarket unit. Software updates can sometimes resolve minor glitches.
  • Estimated Cost to Fix: $300 - $1,500+
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Rattling/Vibrations
  • Description/Symptoms: Various interior components, such as the dashboard or door panels, may develop rattles or vibrations, particularly on rough roads.
  • Solution: Tightening loose fasteners, adding sound deadening material, or replacing worn components.
  • Estimated Cost to Fix: $50 - $500+ (depending on the severity and approach)
  • Recalls: None Found

Summary

The 2017 Subaru WRX STI, while a performance-oriented vehicle, does have several potential issues owners should be aware of. The most concerning are related to the engine, particularly excessive oil consumption and potential ringland failure, which can be costly to repair. Transmission issues such as grinding gears and clutch failure are also relatively common, especially with aggressive driving. Suspension and electrical problems, while less severe, can still impact the overall ownership experience. The cost of repairs can range from a few hundred dollars for minor issues to several thousand dollars for major engine or transmission work.