This manual covers the Mazda Protege, specifically generation BG, produced from 1989 to 1994. Known for its practical design, fuel efficiency, and reliable powertrain, the Protege offered a compelling value proposition in the compact car segment, competing with established models like the Honda Civic and Toyota Corolla. This generation introduced a more aerodynamic profile and improved interior space over its predecessor, providing a functional and straightforward driving experience for commuters and small families. Engine options included the 1.6L inline-4 cylinder, with variants offering 88-125 horsepower and multi-point fuel injection. Available as a 3-door hatchback or 4-door sedan, the Protege was manufactured in Japan and featured a 5-speed manual or optional 4-speed automatic transmission. This comprehensive workshop service manual is designed for mechanical technicians and DIY enthusiasts, providing detailed guidance for the repair and maintenance of the Mazda Protege BG. It covers a wide array of systems, including engine diagnostics and overhaul, fuel and ignition systems, cooling, exhaust, manual and automatic transmissions, drivetrain, suspension, steering, and braking systems. Furthermore, the manual details the electrical system, lighting, HVAC, interior and exterior bodywork, and chassis. It offers step-by-step repair instructions, maintenance procedures, overhaul guides, and diagnostic flowcharts, ensuring owners and technicians can effectively maintain and repair their vehicles, covering everything from routine service intervals to complex troubleshooting and component replacement. 🏷️ Basic Information Identification Make: Mazda Model: Protege Generation Code: BG Production Years Covered: 1989, 1990, 1991, 1992, 1993, 1994 👋 Introduction Market Position Segment: Compact Car / Economy Car Target Demographic: Value-conscious buyers, small families, commuters. Competitive Analysis Key Competitors: Honda Civic, Toyota Corolla, Nissan Sentra, Ford Escort, Chevrolet Cavalier. Key Features Value Proposition: Affordable price, reliable powertrain, practical interior, fuel efficiency. Design Philosophy: Functional and straightforward, prioritizing utility and efficiency over overt styling. 📋 Manual Details Coverage Areas Primary Focus: Workshop Repair and Service Target Audience: Mechanical Technicians and DIY Enthusiasts Page Count Estimated Page Count: Comprehensive (Specific count not provided, but implies full workshop manual scope) Manual Type Type: Workshop Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, repair, overhaul, and component testing for gasoline engines. Fuel System: Fuel injection systems (MPI), fuel pump, injectors, pressure regulators, fuel tank, lines, and evaporative emissions control. Ignition System: Ignition timing, spark plugs, coils, distributors (if applicable), ignition control module diagnostics. Cooling System: Radiator, water pump, thermostat, coolant, hoses, cooling fan operation, and temperature sensors. Exhaust System: Exhaust manifolds, catalytic converter, mufflers, pipes, and emissions control components. Transmission Manual: Removal, installation, disassembly, inspection, and repair of manual transmissions. Transmission Automatic: Removal, installation, diagnostic procedures, fluid service, and component identification for automatic transmissions. Drivetrain: Front-wheel drive systems, axles, CV joints, differential inspection, and wheel bearing service. Suspension Front: MacPherson struts, control arms, ball joints, tie rods, sway bar, bushings, and wheel alignment specifications. Suspension Rear: Independent rear suspension components, shock absorbers, trailing arms, springs, and alignment settings. Steering System: Power steering pump, rack and pinion, steering column, linkage, and fluid specifications. Brakes Front: Disc brake systems, calipers, pads, rotors, brake lines, bleeding procedures, and ABS diagnostics (if equipped). Brakes Rear: Drum or disc brake systems, shoes, drums, calipers, parking brake mechanism, and fluid maintenance. Electrical System: Battery, charging system (alternator), starting system (starter motor), fuses, relays, and wiring diagrams. Lighting System: Headlights, taillights, turn signals, interior lights, and bulb replacement procedures. Instrument Panel: Gauges, warning lights, switches, and dashboard component troubleshooting. HVAC System: Air conditioning, heating, ventilation, blower motor, evaporator, condenser, and refrigerant handling. Body Exterior: Body panel removal and installation, doors, hoods, trunks, bumpers, and glass replacement. Body Interior: Seats, trim panels, dashboard removal, headliner, and interior components. Chassis And Frame: Frame inspection, structural components, and underbody protection. Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting guides, and fault code interpretation. Procedures Included Maintenance: Routine maintenance tasks such as oil changes, filter replacements, fluid checks, and tune-ups. Repair: Step-by-step repair instructions for all major mechanical and electrical systems. Overhaul: Complete engine and transmission rebuild procedures with detailed component specifications. Diagnostics: In-depth diagnostic procedures using visual inspection, electrical testing, and scan tools (if applicable). Installation: Procedures for installing new or replacement parts and components. Adjustment: Adjustment procedures for items like clutch, throttle cable, and parking brake. Technical Depth Scope: Comprehensive Workshop Level Detail Level: Includes torque specifications, clearances, test procedures, and assembly sequences. 📊 Manual Specifications File Format Format: PDF Searchability: Likely searchable text for easy navigation (common for professional PDFs). Print Quality Quality: Professional grade, clear text and diagrams. Binding Type Binding: N/A (Digital PDF download) Paper Type Paper: N/A (Digital PDF download) ⚙️ Engine Specifications Primary Engine Engine Code: BP (1.8L SOHC/DOHC) Displacement Liters: 1.6 L Engine Type: Inline-4 Cylinder Valve Train: SOHC (Single Overhead Camshaft) / DOHC (Dual Overhead Camshaft) Performance Horsepower Approx: 88-125 hp (depending on engine variant and year) Torque Approx: 90-115 lb-ft...