🏷️ Basic Information Identification Make: Porsche Model: 964 Codes Chassis Code: 964 Generation Generation Designation: Porsche 911 (964 Generation) 👋 Introduction Market Position Market Segment: High-performance luxury sports car Competitive Analysis Competitors Of The Era: Ferrari 348, Lotus Esprit, Chevrolet Corvette C4 Key Features Model Distinction: The last air-cooled 911 generation, significant aerodynamic improvements, optional all-wheel drive, and the introduction of the Tiptronic automatic transmission. 📋 Manual Details Coverage Areas Years Covered: 1989, 1990, 1991, 1992, 1993, 1994 Manual Type Type: Full Service Repair Manual Language Language: English Format Digital Format: PDF Delivery Delivery Method: Instant Download Compatibility Operating Systems: Windows and Mac OS 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Ignition System, Exhaust System, Lubrication System Drivetrain: Transmission (Manual & Tiptronic), Clutch, Driveshafts, Differential Chassis: Suspension (Front & Rear), Steering System, Brakes (ABS), Wheels & Tires Electrical: Engine Management System, Lighting, Instrumentation, Power Accessories, HVAC Controls, Audio System Body: Body Panels, Doors, Windows, Seats, Interior Trim, Exterior Trim, Convertible Top (if applicable) Procedures Included Maintenance: Routine Service, Oil Changes, Filter Replacements, Fluid Checks & Replacements, Tune-Ups Repair: Engine Rebuild, Transmission Overhaul, Brake System Repair, Suspension Component Replacement, Electrical Component Diagnosis & Repair Diagnostics: Troubleshooting Guides, Fault Code Interpretation, Electrical System Diagnostics Wiring Diagrams: Comprehensive Electrical Schematics for all Systems Technical Depth Depth Of Coverage: From basic DIY maintenance to full engine and transmission rebuilds, suitable for professional technicians and experienced enthusiasts. 📊 Manual Specifications File Format File Type: Portable Document Format (PDF) Print Quality Printability: Full Printable Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) Requirements Software Requirements: Adobe PDF Reader, WinRAR (for potential archive extraction) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Flat-Six (Boxer) Engine Code Range: M64 (various sub-designations for different displacements) Displacement: 3.6 Liters (3600 cc) for early models, later models often had 3.8 Liters (3800 cc) for Carrera RS and Turbo variants. Performance Horsepower Range: Approx. 250 hp (Carrera 2/4) to 320 hp (Turbo variants) Torque Range: Approx. 228 lb-ft (Carrera 2/4) to 289 lb-ft (Turbo variants) Fuel System Fuel Injection: Bosch Motronic electronic fuel injection Cooling System Cooling Method: Air-cooled with supplementary oil cooling 🔧 Transmission Standard Transmission Type Standard: 5-speed Manual transaxle (G50/00 for RWD, G50/01 for AWD) Optional Transmission Type Optional: Tiptronic Automatic Transmission (4-speed) Features Clutch Type: Hydraulically actuated single dry plate clutch 📐 Dimensions Exterior Wheelbase: Approx. 2272 mm (89.4 in) Length: Approx. 4250 mm (167.3 in) Width: Approx. 1650 mm (65.0 in) Height: Approx. 1310 mm (51.6 in) Weights Curb Weight: Approx. 1450 - 1550 kg (3197 - 3417 lbs) depending on model and specification. 🛡️ Safety Features Ratings Crash Safety General: While specific crash ratings from modern agencies are scarce for this era, Porsche vehicles are known for robust chassis engineering and driver-focused safety features. Active Features ABS: Standard Anti-lock Braking System (ABS) All Wheel Drive: Optional Porsche All-Wheel Drive (M82/01 transaxle for Carrera 4) Passive Features Airbags: Driver and passenger front airbags (introduced later in the generation) Seatbelts: Three-point inertia-reel seatbelts with pretensioners 💡 Technology Features Infotainment Audio System: Factory-installed radio/cassette players, often with options for premium sound systems (e.g., Blaupunkt). Climate Control: Manual or optional automatic climate control (HVAC). Driver Assistance Cruise Control: Standard cruise control system. Connectivity Early Electronics: Features like power windows, central locking, and electrically adjustable mirrors were standard or optional. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 miles (8,000-12,000 km) or annually, depending on driving conditions. Consult manual for exact intervals. Major Service Interval: Major services often around 30,000 miles (48,000 km) or 2-3 years, involving more comprehensive checks and replacements. Consult manual for specifics. Fluid Specifications Engine Oil Specification: Porsche A40 (or equivalent API SN/SM, ACEA C3) - viscosity typically 0W-40 or 5W-40. Always refer to the manual for the precise specification. Transmission Fluid Manual: GL-5 Gear Oil (e.g., Mobilube 75W-90) - Capacity approx. 2.5 liters. Consult manual for exact specification and capacity. Brake Fluid Specification: DOT 4 or DOT 5.1 brake fluid Known Issues Valve Stem Seals: Can degrade over time, leading to oil consumption and blue smoke on startup. Coil Spring Perch Corrosion: Front coil spring perches can be susceptible to corrosion, requiring inspection and potential replacement. Oil Cooler Seals: Leaking oil cooler seals can lead to oil loss and potential engine overheating. Interior Plastics Deterioration: Older plastic components in the interior can become brittle and crack. 📚 Vehicle History Brand Heritage Brand Identity: Porsche has a long-standing reputation for producing high-performance, driver-centric sports cars with a focus on engineering excellence and racing pedigree. Model Evolution Predecessor: Porsche 911 (930 Generation) - G-Series Successor: Porsche 911 (993 Generation) Production Production Period: 1989-1994 Manufacturing Location: Zuffenhausen, Stuttgart, Germany Key Milestones Air Cooled End: The 964 marked the final generation of the iconic air-cooled Porsche 911, a significant point...