1. Introduction
This manual provides comprehensive service and repair information for the 2019 Subaru WRX and WRX STI vehicles. It is designed for service personnel and includes detailed procedures, diagrams, and specifications necessary for maintenance, disassembly, reassembly, inspection, adjustment, and diagnostics. All information is based on the latest product data available as of March 2019.
The manual emphasizes the use of genuine Subaru parts for all repairs to ensure optimal vehicle performance and safety.
2. Setup and Usage
This product is provided as a CD-R disc containing both the Service Manual and the Body Repair Manual. To access the content, insert the CD-R into a compatible computer drive. The manual content is typically presented in a digital format, such as PDF, which can be viewed using standard document reader software.
2.1. Accessing the Manuals
- Insert the CD-R into your computer's optical drive.
- Navigate to the CD-R drive in your computer's file explorer.
- Locate and open the main index file (e.g., "index.html" or "start.pdf") to begin browsing the manual content.
- Ensure you have appropriate software (e.g., Adobe Acrobat Reader for PDF files) installed to view the documents.
2.2. How to Use This Manual
The manual is structured into various sections, each covering specific vehicle systems or repair types. Use the quick reference indexes and internal navigation links within the digital documents to locate relevant information efficiently. Pay close attention to PRECAUTION and NOTE sections for critical safety and procedural details.

Image: Overview of the General Information Section and Quick Reference Index, detailing sections like Foreword, How to Use This Manual, Specifications, and Periodic Maintenance Services.
3. Service Manual Sections
The service manual is divided into several key sections, each addressing specific components and systems of the vehicle.
3.1. General Information
This section covers foundational topics including an introduction to the manual, specifications, precautions, notes, vehicle identification, recommended materials, pre-delivery inspection procedures, and periodic maintenance services.
3.2. Engine Systems
Detailed information on engine components and related systems is provided, including fuel injection, emission control, intake, mechanical engine components, exhaust, cooling, lubrication, speed control systems, ignition, starting/charging systems, and engine diagnostics.

Image: Quick Reference Index for Engine 1 Section, showing topics such as Fuel Injection, Emission Control, Mechanical, Exhaust, Cooling, and Engine Diagnostics for STI models.

Image: Quick Reference Index for Engine 2 Section, similar to Engine 1 but specifically for non-STI models, covering the same range of engine-related topics.
3.3. Transmission Systems
This section covers control systems, continuously variable transmission (CVT) including diagnostics, manual transmission and differential (6MT TY75 and 6MT TY85), and the clutch system.

Image: Quick Reference Index for the Transmission Section, listing Control Systems, Continuously Variable Transmission (CVT), Manual Transmission and Differential, and Clutch System.
3.4. Chassis Systems
Information on the vehicle's chassis includes front and rear suspension, wheel and tire systems (including TPMS diagnostics), differentials, transfer case, drive shaft, vehicle dynamics control (VDC) and its diagnostics, brake systems (including brake vacuum control diagnostics), steering (including power assisted steering diagnostics), and restraint systems.

Image: Quick Reference Index for the Chassis Section, detailing Front Suspension, Rear Suspension, Wheel and Tire System, TPMS, Differentials, Transfer Case, Drive Shaft System, VDC, Brake, Steering, and Restraint System.
3.5. Body Systems
This section covers the heating, ventilation, and air conditioning (HVAC) system and its diagnostics, airbag system and diagnostics, occupant detection system diagnostics, seat belt system, lighting system (including auto headlight beam leveler diagnostics), wiper and washer systems, entertainment and monitoring, communication system, glass/windows/mirrors, body structure, instrumentation/driver information, multi-function display diagnostics, combination meter diagnostics, and seats.

Image: Quick Reference Index for the Body Section, including HVAC, Airbag System, Occupant Detection System, Seat Belt, Lighting System, Wiper and Washer Systems, Entertainment & Monitoring, Communication System, Glass/Windows/Mirrors, Body Structure, Instrumentation/Driver Info, Multi-Function Display, Combination Meter, and Seats.
3.6. Wiring System
The wiring system section provides detailed information on the vehicle's electrical components and circuits. It includes basic diagnostic procedures, working precautions, fuse and relay information, power supply circuits, ground circuits, and specific wiring diagrams for various systems such as airbags, audio, backup light, blind spot detection, charging, clearance light, combination meter, coolant temperature, cruise control, CVT control, driver's control center differential control, electric power steering, engine electrical, eyesight, front accessory power supply socket, front fog light, front view monitor, front wiper and washer, fuel gauge, headlight beam leveler, horn, immobilizer, interior light, keyless access, keyless entry, multi-function display, navigation, occupant detection, oil pressure warning, parking brake, power seat, power window, push button start, radiator fan, rear accessory power supply socket, rear defogger, and rear differential oil temperature warning light systems.

Image: Partial index for the Wiring System section, listing numerous electrical components and their corresponding page numbers, such as Basic Diagnostic Procedure, Fuse and Relay, Airbag System, Charging System, and various light systems.
4. Body Repair Manual
This manual is specifically designed for body repair shops and covers procedures for addressing frame and body damage. It includes detailed instructions for assembly, component replacement, body construction, measurement reference points, and various repair techniques.
4.1. Contents of Body Repair Manual
Key topics include foreword, assembly of exterior parts, customization of sheet metal, body construction, measurement reference points, measurement for combined parts, panel replacement (radiator, front wheel apron, closing plate, front side frame, cowl top board reinforcement, front pillar, center pillar, side sill, rear wheel apron, rear quarter inner/outer, rear quarter end panel, rear panel, rear skirt, rear floor, rear side frame upper/lower, closing plate, rear frame, roof center brace, roof panel, T stud installation, carbon roof panel), body sealing, anticorrosion wax, undercoat, damping seat, insulator, plastic parts and materials, and list of plastic material notations.

Image: Partial index for the Body Repair Manual, showing sections like Foreword, Assembly of Exterior Parts, Body Construction, Panel Replacement, and Body Sealing.
5. Specifications
The manual includes detailed specifications for various components and systems, such as torque specifications for bolts, fluid capacities, and electrical values. These specifications are crucial for ensuring proper assembly and function during repair and maintenance.
For specific values, refer to the respective sections within the digital manual.
6. Vehicle Compatibility
This service and body repair manual is specifically designed for the 2019 Subaru WRX and WRX STI models. It covers various trims and engine configurations for these vehicles.
| Year | Make | Model | Trim | Engine |
|---|---|---|---|---|
| 2019 | Subaru | WRX | Base Sedan 4-Door | 2.0L 1998CC 122Cu. In. H4 GAS DOHC Turbocharged |
| 2019 | Subaru | WRX | Limited Sedan 4-Door | 2.0L 1998CC 122Cu. In. H4 GAS DOHC Turbocharged |
| 2019 | Subaru | WRX | Premium Sedan 4-Door | 2.0L 1998CC 122Cu. In. H4 GAS DOHC Turbocharged |
| 2019 | Subaru | WRX | Sport-tech RS Sedan 4-Door | 2.0L 1998CC 122Cu. In. H4 GAS DOHC Turbocharged |
| 2019 | Subaru | WRX | Sport-tech Sedan 4-Door | 2.0L 1998CC 122Cu. In. H4 GAS DOHC Turbocharged |
| 2019 | Subaru | WRX | Sport Sedan 4-Door | 2.0L 1998CC 122Cu. In. H4 GAS DOHC Turbocharged |
| 2019 | Subaru | WRX STI | Base Sedan 4-Door | 2.5L 2458CC H4 GAS DOHC Turbocharged |
| 2019 | Subaru | WRX STI | Limited Sedan 4-Door | 2.5L 2458CC H4 GAS DOHC Turbocharged |
| 2019 | Subaru | WRX STI | Sport-tech Sedan 4-Door | 2.5L 2458CC H4 GAS DOHC Turbocharged |
| 2019 | Subaru | WRX STI | Sport Sedan 4-Door | 2.5L 2458CC H4 GAS DOHC Turbocharged |
Image: Table showing various 2019 Subaru WRX and WRX STI models, including their trims and engine specifications, for which this manual is compatible.

7. Warranty and Support
This product is a digital service manual provided on a CD-R. For any issues related to the CD-R itself (e.g., disc readability), please contact the seller or distributor from whom it was purchased. As the content is informational, specific warranty or support for the repair procedures themselves would typically fall under the vehicle manufacturer's guidelines or certified service centers.
For official Subaru vehicle warranty information or technical support regarding vehicle repairs, please refer to your authorized Subaru dealer or the official Subaru website.





