2011 Subaru Impreza WRX STI Service & Repair Manual

FW-2 Foreword FOREWORD 1. Foreword A: FOREWORD These manuals are used when performing maintenance, repair or diagnosis of SUBARU IMPREZA WRX and SUBARU IMPREZA WRX STI. Applicable model: 2011 MY GVE*****, GVF*****, GRE*****, GRF***** The manuals contain the latest information at the time of publication. Changes in the specifications, methods, etc. may be made without notice.

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HU-2 How to Use This Manuals HOW TO USE THIS MANUALS 1. How to Use This Manuals A: HOW TO USE THIS MANUALS 1. STRUCTURE Each section consists of SCT that are broken down into SC that are divided into sections for each component. The specification, maintenance and other information for the components are included, and the diagnostic information has also been added where necessary. 2. CONTENTS The first page has an index with tabs.

HU-3 How to Use This Manuals HOW TO USE THIS MANUALS 3. COMPONENT Illustrations are provided for each component. The information necessary for repair work (tightening torque, grease up points, etc.) is described on these illustrations. Information is described using symbol. To order parts, refer to parts catalogue. Example: HU-00017 (14) (9) (8) (7) (6) (10) (4) (10) (22) (11) (19) (17) (15) (13) (12) (18) (16) (1) (2) (3) (4) (5) (6) (7) (8) (11) (10) (9) (12) (13) (19) (18) (20) (17) (16) (24) (10) (25) (5) (4) (4) (4) (3) (3) (3) (2) (1) (21) (15) (23) T7 T2 T2 T2 T2 T2 T2 T4 T5 T5 T8 T6 T6 T6 T11 T10 T1 T1 T3 T3 T3 T1 T9 T4 T5 T5 T3 T4 T3 T2 T4 T2 T1 T3 (20) (21) (23) (22) (10) (24) (25) (26) (35) (34) (27) (14) (28) (29) (31) (32) (37) (30) (33) (36) T3 T2 T1 .... , : Selective part : Replacement part : Sealing point : Should be lubricated with oil. : Should be lubricated with grease. : Tightening torque

HU-4 How to Use This Manuals HOW TO USE THIS MANUALS 4. DEFINITIONS OF “NOTE”, “CAUTION” AND “WARNING” • Note: The supplementary explanation to facilitate the work is described. • Caution: The matter that must not be performed because failure to follow the description causes damage to the vehicle or parts, and the one to which attention should be particularly paid during the work are described. • Warning: The matter that may seriously damage the worker or others and the one results in failures or accidents in case of failure to follow the description are described. 5. SPECIFICATIONS If necessary, specifications are also included. 6. INSPECTION Inspections to be carried out before and after maintenance are included.

HU-5 How to Use This Manuals HOW TO USE THIS MANUALS 7. MAINTENANCE • Maintenance instructions for serviceable parts describe work area and detailed step with illustration. It also describes the use of special tool, tightening torque, caution for each procedure. • If many serviceable parts are included in one service procedure, appropriate reference is provided for each parts. Example: 8. DIAGNOSIS Tables showing a step-by-step process make it easy to conduct diagnosis. (A) Component (D) Cautions (G) Tightening torque (B) Process (E) Tool number of special tool (H) Illustration (C) Reference (F) Name of special tool HU-00041 1) Remove the manual transmission assembly from vehicie. <Ref. to MT-33, REMOVAL, Manual Transmission Assembly.> 15.Main Shaft A: REMOVAL 11) Tighten the lock nuts to the specified torque using ST1 and ST2. NOTE: Secure the lock nuts in two places after tightening. ST1 498937000 TRANSMISSION HOLDER (A) (B) (C) (D) (G) (E) (F) (H) Tightening torque: 120 N m (12.2 kgf-m, 88.5 ft-lb) ST1 ST2 ST2 499987003 SOCKET WRENCH (35)

HU-6 How to Use This Manuals HOW TO USE THIS MANUALS 9. SI UNITS Measurements in these manuals are according to the SI units. Metric and yard/pound measurements are also included. Example: Tightening torque: 45 N·m (4.6 kgf-m, 33.2 ft-lb) The figure used in these manuals are described in the SI units and conventional units are described in ( ). List of SI unit Item SI units Conventional unit Remarks Force N (Newton) kgf 1 kgf = 9.807 N Mass (Weight) kg, g kg, g Capacity 2, m2 or cm 3 2or cc 1 cc = 1 cm 3 = 1 m2 Torque N·m kgf-m, kgf-cm 1 kgf-m = 9.807 N·m Rotating speed rpm rpm Pressure kPa (kilopascal) kgf/cm 2 1 kgf/cm 2 = 98.07 kPa mmHg 1 mmHg = 0.1333 kPa Power W PS 1 PS = 0.7355 kW Calorie W·h cal 1 kcal = 1.163 W·h Fuel consumption rate g/kW·h g/PS·h 1 g/PS·h = 1.3596 g/kW·h

HU-7 How to Use This Manuals HOW TO USE THIS MANUALS 10.EXPLANATION OF TERMINOLOGY • List AAI : Air Assist Injection I/R : Infrared Ray A/B : Airbag ISC : Idle Speed Control ABS : Anti-lock Brake System LAN : Local Area Network A/C : Air Conditioner LED : Light Emitting Diode ACC : Accessory LH : LH (Left Hand) A/F : Air Fuel Ratio LSD : Limited Slip Differential ALT : Generator M/B : Main Fuse & Relay Box ASSY : Assembly MFI : Multi-Point Fuel Injection AT : Automatic Transmission MP-T : Multi-Plate Transfer ATF : Automatic Transmission Fluid MT : Manual Transmission AVCS : Active Valve Control System NA : Natural Aspiration AWD : All Wheel Drive NC : Normal Close (Relay) BATT : Battery NO : Normal Open (Relay) CAN : Controller Area Network OP : Option Parts CD-R/RW : CD Recordable/Rewritable OBD : On-Board Diagnosis COMPL : Complete PC : Personal Computer CPU : Central Processing Unit P/S : Power Steering DCCD : Driver’s Control Center Differential P/W : Power Window DOHC : Double Overhead Camshaft PCD : Pitch Circle Diameter DTC : Diagnosis Trouble Code PCV : Positive Crankcase Ventilation DOJ : Double Offset Joint PID : Parameter Identification DVD : Digital Versatile Disc or Digital Video Disc RAM : Random Access Memory EBD : Electronic Brake Distribution RH : RH (Right Hand) EBJ : High-efficiency Compact Ball Fixed Joint ROM : Read Only Memory ECM : Engine Control Module rpm : Revolution Per Minute EDJ : High-efficiency Compact Double Offset Joint SDI : Subaru Diagnosis Interface EGI : Electronic Gasoline Injection SOHC : Single Overhead Camshaft E/G : Engine SRS : Supplemental Restraint System EGR : Exhaust Gas Recirculation SSM : Subaru Select Monitor ELR : Emergency Locking Retractor ST : Special Tool EX : Exhaust STD : Standard ETC : Electronic Throttle Control SW : Switch F/B : Fuse & Joint Box TCM : Transmission Control Module GPS : Global Positioning System TGV : Tumble Generator Valve HID : High-Intensity Discharge T/M : Transmission H/U : Hydraulic Unit UV : Ultraviolet I/F : Interface VDC : Vehicle Dynamics Control IG : Ignition V.I.N. : Vehicle Identification Number IN : Intake VSV : Vacuum Switching Valve INT : Intermittent VTD : Variable Torque Distribution I/O : Input / Output W/H : Wiring harness

HU-8 How to Use This Manuals HOW TO USE THIS MANUALS

SPECIFICATIONS SPC Page 1. Impreza ...................................................................................................... 2

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2011 Subaru Impreza WRX STI Service & Repair Manual

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