🏷️ Basic Information Identification Make: Porsche Model: 928 Model Years Covered: 1977-1995 Generation First Generation Introduction: 1977 Last Generation Introduction: 1995 Codes Chassis Codes: 928, 928 S, 928 S2, 928 S3, 928 S4, 928 GT, 928 GTS 👋 Introduction Market Position Initial Market Segment: Grand Tourer (GT), positioned as a front-engine, rear-wheel-drive alternative to the 911, targeting the luxury sports car market. Competitive Analysis Key Competitors: Ferrari 400, Aston Martin V8, BMW 6 Series, Mercedes-Benz SEC Coupe. Key Features Unique Selling Points: V8 engine, transaxle layout for balanced weight distribution, luxurious interior, advanced (for its time) technology, comfortable ride. Target Audience Intended Buyers: Affluent buyers seeking a high-performance, comfortable, and stylish grand tourer with Porsche engineering and build quality. 📋 Manual Details Coverage Areas Manual Coverage Scope: Complete Repair and Service Page Count Estimated Page Count: Extensive (specific count not provided, but implied to be comprehensive for all models and years) Manual Type Manual Classification: Service Manual / Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine diagnostics, rebuild procedures, cooling system, fuel injection (CIS/L-Jetronic/Motronic), exhaust systems, engine management. Transmission: Manual and automatic transmission service, clutch operation, torque converter, hydraulic systems. Chassis: Suspension (front and rear transaxle, independent suspension), steering system, braking system (ABS on later models). Electrical: Wiring diagrams, ignition system, charging system, lighting, HVAC controls, power accessories, dashboard instruments, diagnostic systems. Body And Interior: Body panel repair, trim components, interior fittings, safety systems (airbags on later models), glass replacement. Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and top-offs, tune-ups, spark plug replacement. Troubleshooting: Diagnostic procedures for common issues, fault code interpretation (where applicable). Major Repairs: Engine overhaul, transmission rebuild, suspension component replacement, brake caliper rebuild. Component Replacement: Detailed instructions for replacing specific parts, including fuel injectors, alternators, starter motors, water pumps. Technical Depth Diagnostic Capabilities: Advanced diagnostic procedures covering fuel injection systems (CIS, L-Jetronic, Motronic), ignition timing, and electrical systems. Rebuild Instructions: Comprehensive engine and transmission rebuild instructions, including torque specifications, clearance measurements, and component assembly sequences. Electrical Schematics: Detailed wiring diagrams for all major electrical systems, aiding in diagnosis and repair of electrical faults. Body Repair Guidance: Information on bodywork, including panel alignment, rust repair, and corrosion protection, relevant to the model's construction. 📊 Manual Specifications File Format Digital File Type: PDF Print Quality Clarity And Readability: High-resolution, suitable for digital viewing and printing of individual pages. Clear text and diagrams. Binding Type Binding Description: N/A (Digital PDF Format) Paper Type Paper Description: N/A (Digital PDF Format) Searchability Text Search Capability: Likely text-searchable PDF for quick information retrieval. ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V8 (V8 M30, M44, M45, M60, M61) Performance Early Model Horsepower: Approx. 240-250 hp (SAE Gross) Later Model Horsepower: Up to 326 hp (GTS) Early Model Torque: Approx. 245 lb-ft (SAE Gross) Later Model Torque: Approx. 315 lb-ft (GTS) Fuel System Early Injection: Bosch K-Jetronic (CIS) Continuous Injection System Later Injection: Bosch Motronic Electronic Fuel Injection and Ignition Control Engine Displacement Base Displacement: 4.5 Liters (4474 cc) Later Displacement: 5.0 Liters (4907 cc) and 5.4 Liters (5347 cc) Engine Construction Block Material: Aluminum Alloy Head Material: Aluminum Alloy 🔧 Transmission Standard Early Transmission: 5-speed Manual Transaxle Optional Automatic Transmission: 3-speed Automatic Transaxle (e.g., 098, 099 for early models) Features Transaxle Design: Rear-mounted transaxle combining gearbox and differential for optimal weight distribution. Fluid Specification Automatic Transmission Fluid: Dexron III or equivalent (check specific model year for exact spec) Manual Transmission Fluid: GL-4 or GL-5 Gear Oil, SAE 75W-90 or 80W-90 (check specific model year for exact spec) 📐 Dimensions Exterior Length: Approx. 4655 mm (183.3 in) for early models, varying slightly with later models. Width: Approx. 1780 mm (70.1 in) for early models. Height: Approx. 1285 mm (50.6 in) for early models. Weights Curb Weight: Approx. 1550 kg (3417 lbs) for early models, increasing with options and engine size. Gross Vehicle Weight Rating: Varies by model and year, generally around 2000-2150 kg. 🛡️ Safety Features Ratings Crash Test Information: Original US crash test data available; later models incorporated passive safety features. Active Features Anti-Lock Braking System: Optional on some early models, standard on S4, GT, and GTS. Passive Features Airbag System: Driver's side airbag introduced on S4 models (1987 onwards), optional passenger airbag later. Seatbelts: Three-point inertia-reel seatbelts front and rear. Impact Safety: Reinforced chassis, crumple zones, side impact protection beams. 💡 Technology Features Infotainment Early Infotainment: Basic AM/FM radio with cassette player, often integrated into dashboard design. Later Infotainment: Upgraded audio systems, some models featured rudimentary navigation or trip computers. Driver Assistance Cruise Control: Available as an option on most models. Automatic Climate Control: Integrated HVAC system with manual or automatic climate control on later models. Connectivity Early Connectivity: N/A (basic audio input). Later Connectivity: Limited, primarily focused on audio...