🏷️ Basic Information Identification Make: Porsche Model: 944 S / 944 S2 Production Years Covered: 1987-1991 (for 944 S2); 1986-1988 (for 944 S) Codes Chassis Code: 944 S: 944 / 944 S2: 944A 👋 Introduction Market Position Vehicle Segment: Front-engine, rear-wheel-drive sports coupe Competitive Analysis Key Competitors: Chevrolet Corvette C4, Nissan 300ZX Z31, Toyota Supra MkII/MkIII, Mitsubishi Starion, Ford Mustang (later models) Key Features Unique Selling Points: Excellent weight distribution, refined handling, powerful naturally aspirated engines, Porsche build quality, strong performance for its era Manual Benefit: Empowers owners to perform repairs and maintenance, saving significant costs compared to dealership service 📋 Manual Details Coverage Areas Manual Type: Service and Repair Workshop Manual Language: English Format: PDF Download Page Count Estimated Page Count: 1000+ pages (typical for comprehensive Porsche workshop manuals of this era, though exact count not specified) 📖 Manual Coverage Systems Covered Engine: All aspects of engine overhaul, repair, tuning, diagnostics, including DME (Digital Motor Electronics) system for 944 S2 Transmission: Manual and automatic transmission repair, rebuilding, fluid specifications, and diagnostics Brakes: Brake system diagnostics, ABS (Anti-lock Braking System) for S2, hydraulic components, caliper overhaul, pad and rotor replacement Suspension Steering: Front and rear suspension components, shock absorbers, bushings, steering rack overhaul, alignment procedures Electrical System: Complete wiring diagrams, component testing, diagnosis of electrical faults, lighting, instruments, comfort systems Fuel System: Fuel injection systems (Bosch Motronic), fuel pumps, injectors, fuel pressure regulation, tank and lines Cooling System: Radiator, water pump, thermostat, cooling fan operation, flush and fill procedures Bodywork Chassis: Body panel repair, alignment, doors, windows, seals, structural components, rust repair guidance HVAC: Air conditioning system servicing, refrigerant handling, blower motor, heater core replacement Procedures Included Maintenance: Routine maintenance, fluid changes, filter replacements, spark plug servicing, belt inspection and replacement Troubleshooting: Systematic diagnostic procedures for common and uncommon problems, fault code interpretation (where applicable) Rebuilds: Complete engine and transmission rebuild instructions, including torque specifications and assembly sequences Diagnostics: Detailed diagnostic trees, component testing methods, use of specialized tools and equipment Restoration: Guidance on refurbishing and restoring various vehicle systems and components Technical Depth Depth Level: Comprehensive (A-Z coverage), suitable for professional technicians and experienced DIY enthusiasts 📊 Manual Specifications File Format File Type: Adobe PDF Searchability: Likely searchable text within the PDF (standard for professional manuals) Print Quality Printability: High-quality, printable diagrams and procedures Binding Type Binding: Digital download (no physical binding) Paper Type Paper Quality: N/A (digital format, printable on demand) ⚙️ Engine Specifications Primary Engine Engine Type 944 S: Naturally Aspirated Inline 4-cylinder, Dual Overhead Camshafts (DOHC), 16 valves Engine Displacement 944 S: 2.5 Liters (2479 cc) Horsepower 944 S: 190 hp (142 kW) at 6000 rpm Torque 944 S: 205 lb-ft (278 Nm) at 4500 rpm Engine Type 944 S2: Naturally Aspirated Inline 4-cylinder, Dual Overhead Camshafts (DOHC), 16 valves Engine Displacement 944 S2: 3.0 Liters (2983 cc) Horsepower 944 S2: 208 hp (155 kW) at 5800 rpm Torque 944 S2: 250 lb-ft (339 Nm) at 4000 rpm Fuel System Fuel Injection System: Bosch Motronic DME (Digital Motor Electronics) with port injection Performance 0-60 Mph 944 S2: Approx. 6.0 seconds Top Speed 944 S2: Approx. 150 mph (241 km/h) 🔧 Transmission Standard Standard Transmission: 5-speed manual transaxle Optional Optional Transmission: 3-speed automatic transaxle (Tiptronic available on later models, less common on S/S2) Features Transaxle Layout: Rear-mounted transaxle for optimal weight distribution Transmission Fluid Type: GL-5 Gear Oil (specific viscosity to be confirmed in manual, e.g., 75W-90) 📐 Dimensions Exterior Length: Approx. 163.3 in (4148 mm) Width: Approx. 68.2 in (1732 mm) Height: Approx. 50.2 in (1275 mm) Weights Curb Weight 944 S2: Approx. 3000 lbs (1360 kg) Wheelbase: Approx. 94.5 in (2400 mm) 🛡️ Safety Features Active Features ABS: Standard on 944 S2 models, optional or standard on later 944 S variants Passive Features Airbags: Driver's side airbag standard on later models (944 S2), passenger airbag optional or standard depending on market/year Seatbelts: 3-point inertia-reel seatbelts 💡 Technology Features Infotainment Audio System: Factory premium sound systems often available, with cassette decks as standard. Aftermarket upgrades common. Driver Assistance ABS: Standard on S2, a significant safety advancement for the era. Connectivity Original Features: Limited by era; primarily analog systems. No modern connectivity features. 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 to 7,500 miles or annually, whichever comes first. (Specific interval may vary, refer to manual for precise recommendation.) Timing Belt Replacement: Crucial: 30,000 miles or 3 years. Failure causes catastrophic engine damage. Includes tensioner and balance shaft belt. Fluid Specifications Engine Oil Type: Synthetic 5W-40 or 10W-40 (e.g., Mobil 1, Castrol EDGE). Always check manual for latest API or ACEA specifications. Coolant Type: Porsche approved coolant or a quality ethylene glycol-based coolant with Porsche compatibility (e.g., Zerex G-05). Brake Fluid Type: DOT 4 (e.g., Ate Typ 200 or Motul RBF 600 for higher performance). Known...