🏷️ Basic Information Identification Make: Porsche Model: 928 Model Variants: 928, 928S, 928S2, 928S4, 928GT, 928GTS Codes Chassis Codes: 928 (original), 928S, 928S2, 928S4, 928GT, 928GTS 👋 Introduction Market Position Positioning: The Porsche 928 was positioned as a premium, front-engined, rear-wheel-drive grand tourer, designed to be a more comfortable and versatile alternative to the iconic 911, while still offering exceptional performance and luxury. Competitive Analysis Competitors: Competed against other high-performance GT cars of its era, including models from Ferrari (e.g., 400i, 412), Aston Martin, and higher-spec BMW models. Key Features Design Philosophy: Transaxle design for optimal weight distribution, V8 engine for smooth power delivery, luxurious interior appointments, advanced (for its time) technology and safety features. 📋 Manual Details Coverage Areas Covered Years: 1977-1995 Page Count Total Pages: > 2,600 Manual Type Type: Workshop Service Repair Manual Language Language: English Format File Format: PDF (Searchable, Printable, Bookmarked, iPad-ready) 📖 Manual Coverage Systems Covered Engine: Engine Mechanical, Engine Control System, Cooling System, Lubrication System, Fuel System (including EFI), Ignition System, Emission Control Systems, Starting System, Charging System Drivetrain: Manual Transaxle System, Automatic Transaxle System, Differential Case Assy, Drive Shaft, Drive Belt Chassis: Brake System (including Brake Fluid, Brake Booster, Brake Actuator), Steering System, Suspension System (Front & Rear), Wheel And Tire System, Wheel Alignment (Front & Rear) Body: Body Repair, Exterior Components (Bumpers, Doors, Hood, Roof), Interior Components (Instrument Panel, Seat Belts, Airbags), Glass and Seals, Sun Roof System Electrical: Electrical System, Wiring Diagrams, Wire Harness Repair, Lighting System, Combination Meter, Instrumentation, Power Window Control System, Power Mirror Control System, Power Door Lock Control System, Audio System (Radio Receiver Assy), Wiper & Washer System Safety Systems: Supplemental Restraint System (Airbags), Seat Belt Warning System, Shift Lock System Procedures Included Maintenance: Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks and Top-offs, Lubrication Repair: Complete Engine Overhaul, Transmission Repair, Brake System Overhaul, Suspension Component Replacement, Electrical Component Diagnosis and Repair, Body Panel Replacement, Interior Trim Restoration Troubleshooting: System-specific diagnostic procedures, Fault code interpretation, Common problem diagnosis and solutions Technical Specifications: Detailed specifications for all components, torque values, clearances, tolerances, fluid capacities, electrical parameters Technical Depth Depth: Comprehensive, covering everything from routine maintenance to complete engine and transmission rebuilds. Includes detailed diagnostic procedures and wiring diagrams. 📊 Manual Specifications File Format File Type: PDF Searchability: Fully searchable text Print Quality Printability: 100% Printable File Structure Bookmarking: Bookmarked for easy navigation Device Compatibility Ipad Readiness: iPad-ready File Size Size Mb: 560MB Protection Drm Status: DRM-free ⚙️ Engine Specifications Primary Engine Engine Type: V8 (V-engine with 8 cylinders) Displacement Early Models: 4.5 Liters (4474 cc) Displacement 928S: 4.7 Liters (4664 cc) Displacement 928S4: 5.0 Liters (4957 cc) Displacement 928Gts: 5.4 Liters (5397 cc) Performance Horsepower Range: Approx. 234 hp (early) to 326 hp (GTS) Torque Range: Approx. 260 lb-ft (early) to 360 lb-ft (GTS) Fuel System Fuel Injection: Bosch K-Jetronic (early models), Bosch LE2-Jetronic, Bosch LH-Jetronic, Bosch DME (later models) Cooling System Type: Liquid-cooled Engine Management ECU Systems: Various Bosch engine control units depending on model year and specific engine variant. 🔧 Transmission Standard Standard Transmission: 5-Speed Manual Transaxle (initially standard, later optional on some models) Optional Optional Transmission: 3-Speed Automatic Transaxle (initially optional, became standard on some later variants like the 928S4, then an optional 4-speed automatic on GTS) Features Layout: Rear transaxle (engine in front, transmission and differential in rear) for optimized weight distribution. 📐 Dimensions Exterior Body Styles: 2+2 Coupe (all models) Weights Curb Weight Range: Approx. 3,300 - 3,700 lbs (1500 - 1680 kg), varying by model and equipment. 🛡️ Safety Features Passive Features Airbags: Driver's side airbag (introduced with S4 models), Passenger airbag (later models). Seat Belts: Three-point inertia-reel seat belts. Active Features ABS: Anti-lock Braking System (ABS) standard on later models (S4 onwards). Traction Control: Optional or standard on certain higher-performance variants (e.g., 928GT, GTS). 💡 Technology Features Infotainment Audio System: Factory AM/FM radio with cassette player, integrated speakers. Later models offered enhanced sound systems. Driver Assistance Cruise Control: Standard on most models. Comfort Features Climate Control: Automatic climate control (later models), Air Conditioning. Power Accessories: Power windows, power mirrors, power seats (on some higher trims/later models). 🔧 Maintenance Service Intervals Oil Change: Typically every 5,000-7,500 miles (8,000-12,000 km) or annually, depending on driving conditions. Timing Belt: Crucial interval, typically 30,000-60,000 miles (50,000-100,000 km) or as specified by Porsche service bulletins for the specific engine variant. This is a non-interference engine, but belt failure causes significant issues. Spark Plugs: Intervals vary by plug type (copper, platinum, iridium), generally 30,000-60,000 miles. Fluid Specifications Engine Oil Type: API SG/SH or higher, viscosity grades like 10W-40 or 15W-50, depending on climate and specific Porsche recommendations. Check manual for precise specs. Coolant Type: Porsche-approved ethylene glycol-based antifreeze. Capacity typically around 10-12 liters. Brake Fluid Type: DOT 4 (or DOT 5.1 where specified for improved performance/longevity)....