🏷️ Basic Information Identification Make: Porsche Model: 944 Turbo Model Designation: 944 Turbo (also known as 944 S2 Turbo or Turbo S in some markets) Chassis Code: 944 Codes Engine Code Prefix: M44 👋 Introduction Market Position Target Audience: Experienced DIY enthusiasts, independent Porsche specialists, and factory-trained technicians. Competitive Analysis Value Proposition: Provides the same authoritative information as official Porsche workshop manuals, enabling cost-effective maintenance and repair compared to dealership labor rates. Key Features Illustration Count: Hundreds of detailed illustrations and photographs. Instructional Style: Step-by-step instructions for disassembly, repair, and reassembly. Completeness: 100% complete and intact factory documentation. 📋 Manual Details Coverage Areas Manual Coverage Scope: Comprehensive factory service repair manual covering all aspects of the Porsche 944 Turbo. Page Count Estimated Page Count: Over 1000 pages (typical for factory service manuals of this era and complexity) Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, engine management (fuel injection, ignition), exhaust system, turbocharger system, cooling system, lubrication system. Transmission Drivetrain: Manual transmission (G50 transaxle for later models, prior transmissions for earlier Turbo variants), clutch system, driveshafts, differential, transaxle assembly. Chassis Suspension Steering: Front suspension (MacPherson strut), rear suspension (semi-trailing arm), shock absorbers, springs, sway bars, steering system (power steering), wheel alignment specifications. Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System) components and diagnostics, brake fluid, master cylinder, brake calipers, parking brake. Electrical Electronics: Battery, charging system (alternator), starting system, lighting system, fuses, relays, wiring diagrams, instrument cluster, engine control unit (ECU) diagnostics, body electronics. Body Exterior: Body panels, doors, hood, trunk, bumpers, spoilers, glass, seals, convertible top mechanism (if applicable to specific sub-models), body repair procedures. Interior: Seats, dashboard, trim panels, HVAC (Heating, Ventilation, and Air Conditioning) system, interior controls, safety restraints (seat belts, airbags where applicable). Procedures Included Maintenance: Routine maintenance schedules, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection and replacement. Troubleshooting: Diagnostic flowcharts, common fault diagnosis, symptom-based troubleshooting for all major systems. Repair Rebuild: Step-by-step disassembly, repair, and reassembly procedures for major components like engine, transmission, suspension, brakes, and electrical systems. Includes torque specifications for critical fasteners. Special Tools: Identification of specific Porsche special tools required for various procedures. Technical Depth Depth Of Coverage: Factory-level detail, suitable for complete engine rebuilds, transmission overhauls, complex electrical system diagnosis, and bodywork. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text (typically OCR'd for PDFs of this nature) Print Quality Print Capability: Fully printable, all pages can be reproduced. Binding Type Binding Type Digital: N/A (Digital Format) Paper Type Paper Type Digital: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline-4 (944) / Turbocharged Inline-4 (944 Turbo) Displacement: 2.5 Liters (2479 cc) Bore X Stroke: 104.0 mm x 73.0 mm Compression Ratio: 8.5:1 (Turbo models) Valvetrain: DOHC, 16 Valves (2 per cylinder) Performance Horsepower Hp: 220 hp @ 5800 rpm (US Spec Turbo) Torque Lb-Ft: 245 lb-ft @ 3500 rpm (US Spec Turbo) Turbocharger Details: Bosch L-Jetronic CIS-E Fuel Injection with Bosch Motronic Engine Management, Garrett AiResearch Turbocharger, Intercooler. Fuel System Fuel Delivery: Bosch K-Jetronic (CIS) with Lambda Control and Electronic Boost Control (for Turbo models). Fuel Type: Premium Unleaded Gasoline (91+ Octane) 🔧 Transmission Standard Transmission Type: 5-Speed Manual Transaxle (e.g., G50 for later Turbo S, earlier versions may use different transaxles). Optional Optional Transmission: No automatic transmission option was officially offered for the 944 Turbo. Features Transaxle Layout: Rear-mounted transaxle for optimal weight distribution. 📐 Dimensions Exterior Length: 4205 mm (165.5 in) Width: 1735 mm (68.3 in) Height: 1270 mm (50.0 in) Wheelbase: 2400 mm (94.5 in) Weights Curb Weight: Approx. 1340 kg (2954 lbs) Gross Vehicle Weight Rating: Approx. 1700 kg (3748 lbs) 🛡️ Safety Features Ratings Crash Test Information: Specific crash test ratings are not as readily available or standardized as modern vehicles. However, Porsche's reputation for robust construction applies. Active Features ABS: Standard Anti-lock Braking System (ABS) Braking System Type: Four-wheel disc brakes with ventilated front and rear rotors. Passive Features Airbags: Driver's side airbag standard from mid-production. Seat Belts: Three-point seat belts with automatic tensioners. 💡 Technology Features Infotainment Audio System: Factory-installed premium sound systems (e.g., Blaupunkt, Porsche Sound System) were common options. Climate Control: Manual or optional automatic climate control (HVAC system). Driver Assistance Cruise Control: Standard feature. Connectivity Connectivity Features: Limited by era; primarily basic radio and speaker connectivity. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500-10,000 miles or annually, using high-quality synthetic oil. Timing Belt Replacement: Crucial interval, typically every 45,000-60,000 miles or 5 years, due to it being an interference engine. Fluid Specifications Engine Oil Type: Full Synthetic SAE 0W-40 or 5W-40 (API SN or higher, ACEA A3/B4 recommended). Coolant Type: Porsche approved G-48 (ethylene glycol based) or equivalent with...