🏷️ Basic Information Identification Make: Porsche Model: 944 👋 Introduction Market Position Vehicle Class: Front-engined, rear-wheel drive, four-cylinder sports car. Competitive Analysis Competitors: Competed with cars like the Nissan 300ZX (Z31), Toyota Supra (Mk2/Mk3), BMW 3 Series (E30), and Chevrolet Camaro. Key Features Design Philosophy: Shared transaxle design (engine in front, gearbox at rear) for improved weight distribution and handling. Platform: Shared platform with the Porsche 924, but significantly re-engineered and enhanced. Manual Value Proposition: Comprehensive resource for DIY enthusiasts and professional technicians to maintain, diagnose, and repair the Porsche 944. 📋 Manual Details Identification Product Name: Porsche 944 Car Workshop Manual/Repair Manual/Service Manual download Format File Format: PDF Language: English Compatibility: Win/Mac Delivery Method: Instant Download Page Count Total Pages: 2041 Manual Type Type: Workshop Manual / Repair Manual / Service Manual 📖 Manual Coverage Systems Covered Engine: Yes, including diagnostics and Turbo engine specifics. Fuel Exhaust: Yes Transmission: Yes, for both Automatic and Manual transmissions. Running Gear: Yes (Suspension, Steering, Brakes) Body: Yes, including Exterior and Interior aspects. Air Conditioning: Yes Electrical Info: Yes Procedures Included Diagnostics: Comprehensive diagnostic procedures for all major systems. Repair: Detailed repair procedures for mechanical, electrical, and body components. Maintenance: Implied by 'treatment and repair' and comprehensive system coverage, likely includes routine maintenance. Technical Depth Depth: Complete, covering general information to specific component repairs and diagnostics. 📊 Manual Specifications File Quality Resolution: Assumed to be high-quality for a PDF workshop manual, allowing for clear viewing of diagrams and text. Print Ability Print Status: Printable (standard PDF capability). Searchability Text Search: Likely text-searchable PDF, facilitating quick information retrieval. ⚙️ Engine Specifications Primary Engine Type: Naturally Aspirated Inline-4 (M44 series) Displacement: 2.5 Liters (2479 cc) Bore X Stroke: 104.0 mm x 71.0 mm Compression Ratio: 10.2:1 (approx.) Valvetrain: Dual Overhead Camshafts (DOHC), 2 valves per cylinder Performance Horsepower Naturally Aspirated: 147 hp @ 5500 rpm (early models), up to 162 hp (later models) Torque Naturally Aspirated: 190 lb-ft @ 3000 rpm (early models), up to 207 lb-ft (later models) Fuel System Injection: Bosch L-Jetronic or Motronic fuel injection Turbo Engine Type: Turbocharged Inline-4 (M44/51 series) Displacement: 2.5 Liters (2479 cc) Horsepower Turbo: 217 hp @ 5500 rpm (944 Turbo/S) Torque Turbo: 245 lb-ft @ 3000 rpm (944 Turbo/S) Turbocharger: Garrett AiResearch T3 turbocharger with intercooler Engine Features Cooling System: Liquid-cooled Timing Drive: Timing Belt (critical maintenance item) 🔧 Transmission Standard Type: 5-speed Manual Transaxle Optional Type: 3-speed Automatic Transaxle (early models), 4-speed Automatic Transaxle (later models) Features Transaxle Design: Rear-mounted transaxle for optimal weight distribution. Manual Transmission Gear Ratios: Specific ratios vary by model year and transmission variant (covered in manual). Automatic Transmission Fluid Type: Dexron III or equivalent automatic transmission fluid (ATF). 📐 Dimensions Exterior Length: 4216 mm (165.9 in) Width: 1715 mm (67.5 in) Height: 1275 mm (50.2 in) Wheelbase: 2450 mm (96.5 in) Weights Curb Weight: Approx. 1200-1300 kg (2646-2866 lbs) depending on model and equipment. Gross Weight: Refer to vehicle data sticker/manual for specific limits. Cargo Trunk Capacity: Good for a sports car due to hatchback design, specific volume covered in manual. 🛡️ Safety Features Ratings NHTSA Ratings: Information would be specific to model year and region; manual will detail safety system design. Active Features Brakes: Four-wheel Disc Brakes, ABS standard on later models and most Turbos. Steering: Power steering standard. Passive Features Airbags: Driver airbag standard from 1987 onwards. Body Structure: Reinforced safety cage and crumple zones. 💡 Technology Features Infotainment Audio System: Factory AM/FM cassette radio, often with optional CD player in later models. Upgrades common. Driver Assistance ABS: Standard on most 1987+ models and all Turbos. Comfort Features Climate Control: Optional air conditioning, manual climate control. 🔧 Maintenance Service Intervals Oil Change: Typically every 5,000-7,500 miles or annually, refer to specific model year in manual. Timing Belt: Critical replacement interval, typically 40,000-60,000 miles or 4-5 years. Manual provides exact specification and procedure. Brake Fluid: Recommended replacement every 2 years (DOT 4). Fluid Specifications Engine Oil: Porsche A40 or API SN/SM/SL rated synthetic oil, viscosity typically 5W-40 or 10W-40 (verify in manual). Coolant: Glysantin G05 or equivalent ethylene glycol-based coolant with corrosion inhibitors. Manual Transmission Fluid: GL-4 or GL-5 gear oil, specific viscosity varies (e.g., 75W-90). Known Issues Common Problems: Timing belt failure (if not replaced), coolant hose leaks, transaxle seal leaks, aging rubber bushings, power steering rack leaks, ABS sensor issues, fuel accumulator failure. Turbo Specific Issues: Head gasket failure on early Turbos, turbocharger wear, clutch wear. 📚 Vehicle History Brand Heritage Manufacturer: Dr. Ing. h.c. F. Porsche AG. Model Evolution Introduction Year: 1981 Major Updates: Introduction of 944 Turbo (1985), 944 S (1986), 944 S2 (1989), 944 Turbo S (1988), interior updates, chassis improvements over its lifespan. Production End Year: 1991 Production Manufacturing Location: Neckarsulm, Germany (VW Autovision factory). Total Production Units: Approximately 163,000 units across all...