Segment:
Performance Compact Sedan/Hatchback
Usp:
Iconic rally-bred performance, Symmetrical All-Wheel Drive, turbocharged boxer engine, Driver-focused cockpit.
Key Competitors:
Mitsubishi Lancer Evolution, Volkswagen Golf GTI/R32, Ford Focus RS, Mazdaspeed3
Performance Focus:
Engineered for high-performance driving and track use, with emphasis on handling and power delivery.
AWD System:
Subaru's renowned Symmetrical All-Wheel Drive with Driver Controlled Center Differential (DCCD) for enhanced traction and cornering.
Powertrain:
Engine, Fuel System, Ignition System, Exhaust System, Turbocharger System, Drivetrain (Front/Rear Differentials, AWD System), Transmission (Manual)
Chassis:
Suspension (Front/Rear), Steering System, Braking System (ABS), Wheel & Tire
Electrical:
Body Electrical Systems, Powertrain Control Module (PCM), Lighting, Instrumentation, HVAC Controls, Audio System, SRS Airbag System
Body:
Exterior Body Panels, Interior Trim, Doors, Windows, Seats, Body Sealing
Maintenance:
Scheduled maintenance intervals, oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspections.
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based troubleshooting, wiring diagrams, component testing procedures.
Repair:
Engine overhaul, transmission rebuild, suspension component replacement, brake caliper and rotor service, electrical component diagnosis and repair, body panel repair.
Disassembly Assembly:
Detailed step-by-step instructions for removing and installing all major components and sub-assemblies.
Depth:
Comprehensive. Covers basic maintenance to complete engine and transmission rebuilds, including advanced diagnostic procedures.
Special Tools:
Identification and usage of specialized tools required for specific repair procedures.
Type:
6-Speed Manual Transmission
Type:
N/A for WRX STI model
Dccd:
Driver Controlled Center Differential (DCCD) for adjustable front-to-rear torque split.
Manual Transmission Fluid Capacity:
Approximately 2.6 Quarts (2.5 Liters)
Manual Transmission Fluid Type:
Subaru Extra-S GL5 75W-90 Gear Oil or equivalent
NHTSA Front Crash:
5 Stars (2011 Model Year)
NHTSA Side Crash:
5 Stars (2011 Model Year)
IIHS Top Safety Pick:
Yes (2011 Model Year)
ABS:
Anti-lock Braking System (ABS) with Electronic Brake-force Distribution (EBD)
Traction Control:
Traction Control System (TCS)
Stability Control:
Vehicle Dynamics Control (VDC)
Airbags:
Front, front-side, and side-curtain airbags
Seatbelts:
3-point front and rear seatbelts with pretensioners and force limiters
Head Unit:
Standard CD/MP3 player with auxiliary input, available with optional navigation system.
Audio System:
6-speaker audio system, optional premium system.
Cruise Control:
Standard cruise control
Keyless Entry:
Standard keyless entry system
Auxiliary Input:
Standard 3.5mm auxiliary audio input jack
Oil Change Interval:
Every 3,750 miles or 6 months (severe driving) / 7,500 miles or 12 months (normal driving)
Air Filter Replacement:
Every 15,000 miles
Cabin Air Filter Replacement:
Every 15,000 miles
Spark Plug Replacement:
Every 60,000 miles (iridium)
Engine Oil Type:
SAE 5W-30 Synthetic (API SN or higher, ILSAC GF-5 or higher)
Engine Oil Capacity:
Approx. 5.1 Quarts (4.8 Liters) with filter change
Coolant Type:
Subaru Super Coolant (Blue) or equivalent
Brake Fluid Type:
DOT 3 or DOT 4
Engine Reliability:
Ringland failure can occur under aggressive tuning or extreme heat; head gasket issues are less common than in earlier EJ engines but can still occur. Turbocharger reliability is generally good, but maintenance is key.
Clutch Wear:
Clutches can wear faster than average due to the car's performance nature and AWD system.
Suspension Components:
Bushings and ball joints can wear over time, especially with aggressive driving.
Rally Roots:
Direct lineage from Subaru's successful World Rally Championship (WRC) program.
Third Generation Impreza:
The 2011 model is part of the third generation Impreza (GE/GH/GR/GV), which introduced a more mature design and performance enhancements over its predecessors.
Manufacturing Plant:
Ōta, Gunma, Japan
Production Years:
2007-2011 (Third Generation)
