🏷️ Basic Information Identification Make: Porsche Model: 911 Carrera 2 / Carrera 4 Generation: 964 Model Years Covered: 1989-1994 Codes Chassis Code: 964 Engine Codes: M64.01, M64.02, M64.20, M64.21 👋 Introduction Market Position Market Position: The Porsche 964 generation represented a significant evolution of the iconic 911, blending classic air-cooled performance with modern technology. It appealed to enthusiasts seeking a potent, driver-focused sports car with a strong heritage. Competitive Analysis Competitive Analysis: Competed against other high-performance sports cars of its era such as the Ferrari 348, Chevrolet Corvette C4 ZR-1, and Nissan 300ZX Twin Turbo. The 964's advantage lay in its superior handling dynamics, build quality, and brand prestige. Key Features Key Features: Continuously variable (coil springs) suspension, integrated bumpers, ABS (standard on Carrera 4, optional on Carrera 2), optional Tiptronic automatic transmission, and improved aerodynamics. The 964 also introduced power steering and airbags as standard. 📋 Manual Details Coverage Areas Coverage Areas: All diagnostic and repair procedures, maintenance, rebuilding, refurbishment, and restoration. Restoration Guidance: Procedures for body panel alignment, interior trim restoration, dashboard component removal and repair, and detailing of original specifications. Page Count Page Count: Estimated 2000+ pages (typical for comprehensive Porsche workshop manuals of this era, actual count not specified in product info but implied by 'A-Z' coverage). Manual Type Manual Type: Service Repair Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems Covered: Engine, Fuel System, Ignition System, Exhaust System, Clutch, Transmission (Manual & Tiptronic), Drive Axles, Suspension (Front & Rear), Steering, Brakes (ABS), Wheels & Tires, Body & Chassis, Interior, Electrical System (including DME, ABS, Comfort Electronics), Heating & Air Conditioning, Diagnostic Systems, Lubrication, Cooling System. Electrical System Detail: Comprehensive wiring diagrams, component testing procedures, fuse and relay identification, troubleshooting for DME (Digital Motor Electronics), ABS, comfort control units, lighting, and instrumentation. Procedures Included Procedures Included: Scheduled Maintenance, Routine Inspections, Troubleshooting, Engine Overhaul, Transmission Rebuild, Brake System Repairs, Suspension Component Replacement, Electrical System Diagnostics and Repair, Body Panel Repair and Alignment, Air Conditioning Service, Fuel System Maintenance, Ignition System Tuning, Diagnostic Code Interpretation, Component Installation and Removal, Body and Interior Trim Removal and Installation. Engine Rebuild Procedures: Detailed instructions for cylinder head removal and reconditioning, piston and connecting rod installation, crankshaft bearing replacement, timing chain and tensioner maintenance, oil pump overhaul, and complete engine assembly with torque specifications and clearances. Technical Depth Technical Depth: Comprehensive, covering everything from basic maintenance and fluid changes to advanced diagnostics, component rebuilding, and complete vehicle restoration. Includes detailed specifications, torque values, and step-by-step instructions for professional technicians and skilled DIY enthusiasts. Diagnostic Procedures: Includes fault code retrieval (where applicable), component resistance checks, voltage drop testing, sensor signal analysis, and specific troubleshooting trees for common drivability issues. 📊 Manual Specifications File Format File Format: Adobe PDF Print Quality Print Quality: High-resolution, printable diagrams and text. Users can print individual pages as needed. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Primary Engine: Naturally Aspirated Air-Cooled Flat-Six (Boxer) Performance Engine Displacement: 3.6 Liters (3600 cc) Horsepower Range: 250 hp (Carrera 2) to 261 hp (Carrera RS, Turbo models not covered by this manual) Torque Range: 228 lb-ft to 236 lb-ft Fuel System Fuel System: Bosch Motronic M2.1, M2.2, M2.7 engine management with multi-point fuel injection (MPI) and sequential fuel injection (SFI). 🔧 Transmission Standard Standard Transmission: 5-speed Manual (G50 transaxle) Optional Optional Transmission: 4-speed Tiptronic Automatic Features Drive Type: Rear-Wheel Drive (Carrera 2), All-Wheel Drive (Carrera 4) 📐 Dimensions Exterior Wheelbase: 2,272 mm (89.4 inches) Length: 4,250 mm (167.3 inches) Width: 1,775 mm (69.9 inches) Height: 1,310 mm (51.6 inches) Weights Curb Weight: Approximately 1,450-1,550 kg (3,197-3,417 lbs) depending on model and options. Wheel Bolt Pattern: 5x130 🛡️ Safety Features Ratings Safety Ratings: No formal crash test ratings from modern agencies like NHTSA/IIHS are directly comparable to contemporary standards. However, the 964 was designed with significant safety improvements over its predecessor. Active Features Active Features: Anti-lock Braking System (ABS), Power-assisted brakes. Passive Features Passive Features: Reinforced passenger cell, crumple zones, driver and passenger airbags (standard from late 1991 models onwards), 3-point inertia-reel seatbelts. 💡 Technology Features Infotainment Infotainment: Basic factory radio/cassette systems, often with optional CD players. Sound systems were typically a focus on clarity and power rather than extensive features. Driver Assistance Driver Assistance: ABS, Tiptronic transmission option. Connectivity Connectivity: Limited to basic accessory ports (e.g., for phone chargers). 🔧 Maintenance Service Intervals Service Intervals: Typically: Oil Service every 10,000 km (6,000 miles) or annually; Major Service every 20,000 km (12,000 miles) or bi-annually. Includes spark plug replacement, air filter, fuel filter, and detailed inspections. Specific intervals vary and are detailed in the manual. Fluid Specifications Engine Oil Specifications: SAE 10W-50 or 15W-50 synthetic oil meeting Porsche A40 specification or equivalent API SG/SH...