🏷️ Basic Information Identification Make: Porsche Model: 924 / 924 Turbo Model Codes: 924, 931 (924 Turbo) Codes Chassis Codes: 477 (924), 475 (924 Turbo) 👋 Introduction Market Position Segment: Front-engine, rear-wheel drive, entry-level luxury sports coupe. Target Audience: Enthusiasts seeking a more accessible Porsche experience, those valuing practicality and handling. Competitive Analysis Competitors: Toyota Supra, Datsun 280ZX, Mazda RX-7, Chevrolet Camaro, Ford Mustang. Key Features Design Philosophy: Transaxle design for balanced weight distribution, Audi-derived platform for practicality and shared components. Performance Focus: The Turbo variant introduced significant performance gains with turbocharging. Manual Benefit Cost Savings: Enables owners to perform maintenance and repairs, saving significant labor costs. Ease Of Use: Step-by-step instructions and pictures make complex tasks accessible to DIYers. 📋 Manual Details Coverage Areas Covered Years: 1976-1989 Covered Models: Porsche 924, Porsche 924 Turbo Covered Trims: All trim levels including standard and Turbo variants. Covered Engines: All engine variants (2.0L I4, 2.5L I4). Covered Transmissions: All transmission types (4-speed manual, 5-speed manual, 3-speed automatic). Page Count Estimated Pages: Extensive (specific number not provided, but described as 'complete' and covering A-Z). Manual Type Type: Complete Workshop Service Repair Manual Language Language: English Format Format: Downloadable Digital File (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, cylinder head, pistons, crankshaft, camshafts, timing belt, lubrication system, cooling system. Engine Management: Fuel injection systems (CIS for naturally aspirated, K-Jetronic for Turbo), ignition system, emissions control. Transmission Manual: Clutch system, gearbox overhaul, shift linkage, specifications. Transmission Automatic: Automatic transmission overhaul, fluid types, control systems. Brakes: Brake system diagnosis, disc brake overhaul, power assist, parking brake, fluid specifications. Suspension: Front and rear suspension components, alignment specifications, shock absorbers, bushings. Steering: Steering rack, power steering system, tie rod ends, linkage. Electrical System: Wiring diagrams, component testing, battery, alternator, starter, lighting, fuses, relays, ECU diagnostics. Fuel System: Fuel pump, fuel filter, fuel lines, fuel tank, fuel gauge sender. Body And Chassis: Body panels, doors, hood, trunk, interior trim, glass replacement, rust repair. HVAC: Heating, ventilation, and air conditioning (if equipped) system diagnosis and repair. Procedures Included Maintenance: Routine maintenance tasks, fluid changes, filter replacements, tune-ups, lubrication. Troubleshooting: Diagnostic procedures for common problems, symptom-based troubleshooting guides. Repair: Detailed step-by-step repair instructions for all major components and systems. Overhaul: Complete engine, transmission, and component overhaul procedures. Diagnostics: Electrical system diagnostics, fuel system diagnostics, engine performance analysis. Recalibration: Fuel system adjustments (CIS idle speed, CO mixture), timing adjustments. Technical Depth Depth: Comprehensive: Covers everything from basic maintenance to full engine and transmission rebuilds, including detailed electrical troubleshooting. 📊 Manual Specifications File Format Format: PDF Compatibility: All PC & MAC Computers, tablets, mobile phones with Adobe Reader. Print Quality Printability: Printable (individual pages, chapters, or entire manual). Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine 924 Engine: 2.0L (1984cc) Volkswagen EA831 inline-4 924 Turbo Engine: 2.0L (1984cc) Volkswagen EA831 inline-4 with Turbocharger Performance 924 Horsepower: 110-118 hp (depending on market and year) 924 Turbo Horsepower: 177 hp (initially), later increased to 185 hp 924 Torque: 122-133 lb-ft 924 Turbo Torque: 200-210 lb-ft Fuel System 924 Fuel System: Bosch K-Jetronic (CIS) fuel injection 924 Turbo Fuel System: Bosch K-Jetronic (CIS) with turbocharger and intercooler Engine Codes 924 Engine Code: M31.01 (NA), M31.03 (Turbo) Engine Features Cylinder Head Design: Aluminum alloy, dual overhead camshafts (DOHC) 🔧 Transmission Standard 924 Standard Transmission: 4-speed manual transmission Optional 924 Optional Transmission: 3-speed automatic transmission (Type 090) Features Transaxle Design: Rear-mounted transaxle for improved weight distribution. Gear Ratios Manual Gear Ratios: Specific ratios are detailed within the manual for each transmission type. Fluid Requirements Manual Transmission Fluid: GL-4 gear oil, e.g., Mobilube HD 75W-90 or equivalent. Automatic Transmission Fluid: Dexron III or equivalent ATF. 📐 Dimensions Exterior Wheelbase: 2400 mm (94.5 in) Length: 4215 mm (166.0 in) Width: 1685 mm (66.3 in) Height: 1290 mm (50.8 in) Weights Curb Weight 924: Approx. 1180 kg (2601 lbs) Curb Weight 924 Turbo: Approx. 1240 kg (2734 lbs) 🛡️ Safety Features Ratings Crash Test Data: No formal US crash test ratings available for these early models. Active Features Braking System: Front ventilated discs, rear discs. Passive Features Seat Belts: Three-point seat belts. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio with cassette player, often optional premium sound systems. Driver Assistance Cruise Control: Optional on some models. Connectivity Connectivity Features: Minimal by modern standards; primarily focused on core vehicle functions. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 miles or annually, consult specific year/model for exact recommendation. Timing Belt Replacement: Every 60,000 miles or 5 years, critical due to interference engine design. Fluid Specifications Engine Oil Type: SAE 20W-50 or 10W-40, API SG or higher (check manual for specific viscosity based on climate). Coolant Type: Ethylene glycol based antifreeze, typically 50/50 mix with distilled water. Brake Fluid...