🏷️ Basic Information Identification Make: Porsche Model: 944 S2 Years Covered: 1989, 1990, 1991 👋 Introduction Market Position Vehicle Segment: Front-engine, rear-wheel-drive sports coupe/cabriolet Brand Philosophy: Combines Porsche's performance heritage with practicality and advanced engineering for its era. Competitive Analysis Competitors Era: BMW E30, Nissan 300ZX (Z32), Toyota Supra (MkIII), Chevrolet Camaro/Pontiac Firebird Key Features Driving Dynamics: Excellent weight distribution, sophisticated suspension, responsive handling. Design: Iconic 'transaxle' design, aerodynamic profile, well-appointed interior. Manual Value Proposition: Enables owners and technicians to perform high-quality maintenance and repairs, saving cost and ensuring longevity. 📋 Manual Details Coverage Areas Manual Type: Workshop Service Repair Manual Language: English Format: PDF Delivery Method: Electronic Delivery via Email Printability: Yes 📖 Manual Coverage Systems Covered Engine Mechanical: Complete Engine Tune-ups, Overhaul, Removal & Installation, Assemblies & Disassemblies Fuel System: Fuel injection system, fuel pump, injectors, fuel lines, fuel tank Ignition System: Ignition timing, spark plugs, ignition coils, distributor (if applicable), ECU control Lubrication System: Oil pump, oil filter, oil cooler, oil pressure, lubrication intervals Cooling System: Radiator, water pump, thermostat, coolant hoses, cooling fan operation Exhaust System: Exhaust manifold, catalytic converter, mufflers, exhaust pipes Electrical System: Wiring diagrams, battery, alternator, starter, lighting, fuses, relays, power windows, mirrors Transmission: Manual and Automatic transmission removal & installation, internal overhaul, fluid specifications Drivetrain: Driveshafts, CV joints, differentials, wheel bearings Suspension: Front and rear suspension components, shock absorbers, struts, control arms, bushings, alignment specifications Steering: Power steering system, steering rack, tie rods, steering column Brakes: Brake system components, hydraulic lines, calipers, brake pads, rotors, ABS system (if equipped), bleeding procedures Body And Chassis: Body panel removal & installation, door mechanisms, interior trim, glass replacement, chassis components Procedures Included Maintenance: Routine maintenance, fluid changes, filter replacements, tune-ups Diagnostics: Troubleshooting guides, diagnostic fault codes (if applicable), symptom analysis Repair: Detailed repair instructions for all major systems Overhaul: Complete engine and transmission overhaul procedures Installation: Removal and installation procedures for major components Special Tools: Identification and usage of Porsche special tools Technical Depth Depth: Comprehensive, suitable for professional technicians and knowledgeable DIY enthusiasts Emphasis: Highlights special aspects of Porsche 944 S2, proprietary component instructions included 📊 Manual Specifications File Format File Type: PDF Digital Delivery: Fast and Free Electronic Delivery via Email Searchability: Assumed searchable PDF (standard for most service manuals) Print Quality: Printable ⚙️ Engine Specifications Primary Engine Engine Code: M44.01 (944 S2) Engine Type: Naturally Aspirated Inline-4 Cylinder, DOHC Displacement: 3.0 Liters (2990 cc) Performance Horsepower: 208 hp @ 5800 rpm Torque: 270 lb-ft (366 Nm) @ 4000 rpm Fuel System Fuel Delivery: Bosch L-Jetronic fuel injection Recommended Fuel: Premium Unleaded Gasoline (91 octane or higher) Engine Management ECU: Digital Engine Control Unit (ECU) 🔧 Transmission Standard Type: 5-speed Manual Transaxle (G37/G52) Optional Type: 4-speed Automatic Transaxle (optional) Features Layout: Rear transaxle design (engine in front, transmission at rear) Fluid Specifications Manual Gear Oil: API GL-4, SAE 75W-90 or 80W-90 synthetic gear oil (refer to manual for exact PN and capacity) Automatic Transmission Fluid: Dexron III or equivalent (refer to manual for exact PN and capacity) 📐 Dimensions Exterior Length: 4230 mm (166.5 in) Width: 1735 mm (68.3 in) Height: 1280 mm (50.4 in) (Coupe) Wheelbase: 2450 mm (96.5 in) Weights Curb Weight: Approx. 1400 kg (3086 lbs) (Coupe) Weight Distribution: Near 50/50 front/rear bias 🛡️ Safety Features Ratings Crash Test Data: Information typically found in OEM service manuals, specific ratings may vary by region and testing agency. Active Features ABS: Anti-lock Braking System (standard on S2 models) Passive Features Airbags: Driver airbag (standard on S2 models), passenger airbag optional/standard depending on market and build date. Seatbelts: Three-point inertia-reel seatbelts Rollover Protection: Reinforced A-pillars and windscreen frame (standard for Coupe, integrated in cabriolet design) 💡 Technology Features Infotainment Audio System: Period-correct premium audio systems (e.g., Blaupunkt, Porsche CR series), often with cassette decks. Driver Assistance ABS: Standard ABS system enhances braking control. Connectivity Features: Limited by era, primarily focused on core vehicle functions and comfort. No modern infotainment or connectivity features. 🔧 Maintenance Service Intervals Oil Change: Typically every 5,000-7,500 miles or annually (refer to manual for precise Porsche recommendations). Timing Belt Replacement: Critical: Every 45,000 miles or 5 years due to interference engine design. (Refer to manual for specific PN and procedure). Spark Plug Replacement: Approximately every 30,000 miles (refer to manual for exact type and gap). Fluid Specifications Engine Oil: Mobil 1 0W-40 or similar high-quality synthetic, API SN, ACEA A3/B4 (refer to manual for exact PN and capacity) Coolant: Porsche approved coolant (e.g., G48, G05) mixed 50/50 with distilled water. Brake Fluid: DOT 4 Low-Viscosity (LV) or DOT 4 Plus (refer to manual for exact PN). Known Issues Common Problems: Fuel line degradation, coolant hose leaks, window regulator failure, transaxle mounts, ABS sensor issues, clutch slave cylinder leaks. Engine Specific: Camshaft wear on high-mileage examples, potential for oil leaks...