The manuals provide information for maintaining and repairing Subaru Legacy models. They contain specifications, maintenance procedures, and diagnostic information. The manuals use illustrations and define terminology to clearly convey repair instructions. They follow a systematic structure and provide references between sections to make information easy to find.

1. FW-2
Foreword
FOREWORD
1. Foreword
A: FOREWORD
These manuals are used when performing mainte-
nance, repair or diagnosis of Subaru LEGACY.
Applicable model:
2010MY BM*****, BR*****
The manuals contain the latest information at the
time of publication. Changes in the specifications,
methods, etc. may be made without notice.

2. 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 com-
ponent. 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.

3. 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

4. HU-4
How to Use This Manuals
HOW TO USE THIS MANUALS
4. DEFINITION OF “NOTE”, “CAUTION” AND “WARNING”
• NOTE:
describes supplementary explanations for efficient operation.
• CAUTION:
describes particular items to be followed and items to be prohibited to avoid vehicle or parts damage.
• WARNING:
describes items to be strictly prohibited to avoid serious injury to the person doing the work or people in the
area, and items to be strictly followed to avoid any deficiency or accident.
5. SPECIFICATION
If necessary, specifications are also included.
6. INSPECTION
Inspections to be carried out before and after maintenance are included.

5. 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:
(A) Component (D) Cautions (G) Tightening torque
(B) Process (E) Tool number of special tool (H) Illustration
(C) Reference (F) Name of special tool
ST1
ST2
(A)
(B)
(C)
(D)
(G)
(E) (F)
(H)
HU-00020
1) Remove the manual transmission assembly
from vehicle. <Ref. to MT-33, REMOVAL, Manual
Transmission Assembly.>
15.Main Shaft
A: REMOVAL
11) Tighten the lock nuts to the specified torque us-
ing ST1 and ST2.
NOTE:
Secure the lock nuts in two places after tightening.
ST1 498937000 TRANSMISSION HOLDER
ST2 499987003 SOCKET WRENCH (35)
Tightening torque:
118 N m (12.0 kgf-m, 86.8 ft-lb)

6. HU-6
How to Use This Manuals
HOW TO USE THIS MANUALS
8. DIAGNOSIS
Diagnosis uses step-by-step process to make operations easier.
9. SI UNITS
Measurements in these manuals are according to the SI units. Metric and yard/pound measurements are
also included.
Example:
Tightening torque:
44 N·m (4.5 kgf-m, 33 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 = 9.80655 N
Mass (Weight) kg, g kg, g
Capacity 2, m2 or cm3
2or cc 1 cc = 1 cm3
= 1 m2
Torque N·m kgf-m, kgf-cm 1 kgf-m = 9.80655 N·m
Rotating speed rpm rpm
Pressure kPa (kilopascal)
kgf/cm2 1 kgf/cm2 = 98.0655 kPa
mmHg 1 mmHg = 0.133322 kPa
Power W PS 1 PS = 0.735499 kW
Calorie W·h cal 1 kcal = 1.16279 W·h
Fuel consumption rate g/kw·h g/PS·h 1 g/PS·h = 1.3596 g/kW·h

7. HU-7
How to Use This Manuals
HOW TO USE THIS MANUALS
10.EXPLANATION OF TERMINOLOGY
• LIST OF ABBREVIATIONS
AAI : Air Assist Injection IG : Ignition
A/B : Airbag IN : Intake
ABS : Anti-lock Brake System INT : Intermittent
A/C : Air Conditioner I/O : Input / Output
A/F : Air Fuel Ratio ISC : Idle Speed Control
ALT : Generator LAN : Local Area Network
APS : Accessory Power supply Socket LH : LH (Left Hand)
ASSY : Assembly LSD : Limited Slip Differential
AT : Automatic Transmission M/B : Main Fuse & Relay Box
ATF : Automatic Transmission Fluid MD : Mini Disc
AVCS : Active Valve Control System MID : Multi Information Display
AWD : All Wheel Drive MFI : Multi-Point Fuel Injection
BATT : Battery MP-T : Multi-Plate Transfer
BCM : Brake Control Module MT : Manual Transmission
BJ : Bell Joint NA : Natural Aspiration
CAN : Communication Area Network NC : Normal Close (Relay)
CD : Compact Disc NO : Normal Open (Relay)
COMPL : Complete OP : Option Parts
CPU : Central Processing Unit PC : Personal Computer
DOHC : Double Overhead Camshaft PCV : Positive Crankcase Ventilation
DOJ : Double Offset Joint P/S : Power Steering
DTC : Diagnostic Trouble Code PTJ : Pillow Tripod Joint
EBJ : High-efficiency Compact Ball Fixed Joint P/W : Power Window
ECM : Engine Control Module RH : RH (Right Hand)
EDJ : High-efficiency Compact Double Offset Joint Rr : Rear
EGI : Electronic Gasoline Injection SDI : SUBARU Diagnostic Interface
E/G : Engine SI : SUBARU Intelligent
EGR : Exhaust Gas Recirculation SOHC : Single Overhead Camshaft
ETC : Electronic Throttle Control SRS : Supplemental Restraint System
EX : Exhaust ST : Special Tool
F/B : Fuse & Joint Box SW : Switch
Ft : Front TCS : Traction Control System
FWD : Front Wheel Drive TGV : Tumble Generator Valve
GPS : Global Positioning System T/M : Transmission
HID : High-Intensity Discharge UJ : Universal joint
H/U : Hydraulic Unit VDC : Vehicle Dynamics Control
HVAC : Heater, Ventilator and Air Conditioner VTD : Variable Torque Distribution

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

9. SPC-2
LEGACY
SPECIFICATIONS
1. LEGACY
A: DIMENSION
1. SEDAN MODEL
B: ENGINE
C: ELECTRICAL
Model 2.5 L SOHC non-turbo 2.5 L DOHC turbo 3.6 L DOHC non-turbo
Overall length mm (in) 4,735 (186.4)
Overall width mm (in) 1,820 (71.7)
Overall height (at C.W.) mm (in) 1,505 (59.3)
Wheelbase mm (in) 2,750 (108.3)
Tread
Front mm (in) 1,565 (61.6) 1,550 (61.0) 1,565 (61.6)
Rear mm (in) 1,570 (61.8) 1,555 (61.2) 1,570 (61.8)
Minimum road clearance mm (in) 150 (5.9)
Model 2.5 L SOHC non-turbo 2.5 L DOHC turbo 3.6 L DOHC non-turbo
Engine type
Horizontally opposed, liquid cooled, 4-cylinder,
4-stroke gasoline engine
Horizontally opposed,
liquid cooled, 6-cylinder,
4-stroke gasoline engine
Valve arrangement Overhead camshaft
Bore × stroke mm (in) 99.5 × 79.0 (3.917 × 3.110)
92.0 × 91.0
(3.622 × 3.583)
Displacement cm3
(cu in) 2,457 (149.9) 3,630 (221.4)
Compression ratio 10.0 8.4 10.5
Ignition order 1 — 3 — 2 — 4 1 — 6 — 3 — 2 — 5 — 4
Idle speed at
Park or Neutral
position
rpm
650 (MT)
675 (CVT)
700 700
Maximum output kW (HP)/rpm 127 (170)/5,600 198 (265)/5,600 191 (256)/6,000
Maximum torque N·m (kgf-m, ft-lb)/rpm 230 (23.5, 170)/4,000 350 (35.7, 258)/2,000 — 5,200 334 (34.1, 247)/4,400
Model 2.5 L SOHC non-turbo 2.5 L DOHC turbo 3.6 L DOHC non-turbo
Ignition timing (at idling) BTDC 15°
Spark plug Type and manufacturer NGK: SIFR6A11 NGK: SILFR6B8 NGK: SILFR6C11
Generator 12 V — 110 A 12 V — 130 A
Battery Type and capacity (5HR) 12 V — 52 AH (75D23R)

10. SPC-3
LEGACY
SPECIFICATIONS
D: TRANSMISSION
1. MT
6MT: 6-forward and 1-reverse speeds with synchromesh for all gears
DSPD: Dry Single Plate Diaphragm
2. AT
5AT: Electronically controlled fully-automatic, 5-forward speeds and 1-reverse
TCC: Torque Converter Clutch
Model 2.5 L SOHC non-turbo 2.5 L DOHC turbo
Transmission type 6MT 6MT
Clutch type DSPD DSPD
Gear ratio
1st 3.454 3.454
2nd 1.947 1.947
3rd 1.296 1.296
4th 0.972 0.972
5th 0.825 0.780
6th 0.695 0.666
Rev. 3.636 3.636
Reduction gear (Front)
Type of gear Hypoid Hypoid
Gear ratio 4.111 4.111
Reduction
gear (Rear)
Transfer reduction
Type of gear Helical Helical
Gear ratio 1.000 1.000
Final reduction
Type of gear Hypoid Hypoid
Gear ratio 4.111 4.111
Model 3.6 L DOHC non-turbo
Transmission type 5AT
Clutch type TCC
Gear ratio
1st 3.540
2nd 2.264
3rd 1.471
4th 1.000
5th 0.834
Rev. 2.370
Reduction
gear (Front)
1st reduction
Type of gear Helical
Gear ratio 1.000
Final reduction
Type of gear Hypoid
Gear ratio 3.083
Reduction gear (Rear)
Type of gear Hypoid
Gear ratio 3.083

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