🏷️ Basic Information Identification Make: Porsche Model: 911 Carrera 4 Model Code: 964 Generation: 964 Codes Internal Chassis Code: 964 👋 Introduction Market Position Market Segment: High-performance sports car, luxury grand tourer Competitive Analysis Key Competitors: Ferrari Testarossa, Lamborghini Countach, Chevrolet Corvette C4 ZR-1 Key Features Aerodynamics: Cup spoiler, integrated front bumper, pop-up headlights All Wheel Drive: Porsche's advanced viscous-coupling all-wheel-drive system for enhanced traction Engineering: Robust chassis, air-cooled flat-six engine, driver-focused ergonomics 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Workshop Manual Language: English Format: PDF (Downloadable) Page Count Estimated Page Count: Hundreds (specific number not provided, but stated as extensive) 📖 Manual Coverage Systems Covered Engine: Complete overhaul, tuning, fuel injection, ignition, cooling, lubrication, exhaust Transmission: Manual and Tiptronic transmission overhaul, adjustment, fluid service Drivetrain: All-wheel drive system (Carrera 4), differentials, CV joints, driveshafts Suspension: Front and rear suspension, shock absorbers, springs, control arms, alignment Brakes: Hydraulic system, ABS, brake pads, rotors, calipers, bleeding procedures Electrical System: Wiring diagrams, battery, alternator, starter, lighting, ignition, ECU, sensors Bodywork And Chassis: Body panel repair, chassis reinforcement, door mechanisms, glass replacement Interior: Seats, dashboard, climate control, interior trim Procedures Included Maintenance: Scheduled servicing, oil changes, filter replacements, inspections Troubleshooting: Diagnostic procedures, fault code interpretation, symptom-based troubleshooting Repair: Component removal, installation, adjustment, rebuilding Specifications: Torque values, clearances, fluid capacities, electrical parameters Technical Depth Depth: Comprehensive; suitable for professional mechanics and advanced DIY enthusiasts Illustrations: Hundreds of detailed photos and diagrams, exploded views 📊 Manual Specifications File Format Compatibility: Windows and MAC compatible Usage License: Lifetime use, no expiry, no renewal fees Print Quality Printability: Printable (single pages or entire manual) Binding Type Binding: N/A (Digital PDF) Paper Type Paper Quality: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Flat-Six (Air-Cooled) Engine Code Prefix: M64 Displacement: 3.6 liters (3600 cc) Bore X Stroke: 100.0 mm x 76.4 mm Compression Ratio: 11.3:1 Horsepower Hp: 250 hp @ 6100 rpm Torque Lb-Ft: 225 lb-ft @ 4800 rpm Fuel System Fuel Delivery: Bosch Motronic M2.10 electronic fuel injection Fuel Type: Premium Unleaded Gasoline (91+ Octane) Ignition System Ignition Type: Distributorless ignition system (DIS) with two ignition coils Cooling System Cooling Method: Air-cooled with oil cooler and electric fan assistance 🔧 Transmission Standard Transmission Type: 5-speed Manual (G50) Optional Transmission Type Optional: Tiptronic (4-speed Automatic with manual shifting) Features Clutch Type: Hydraulically operated single dry plate clutch Fluid Specifications Manual Transmission Fluid: Mobil Mobilube PTX 75W-90 (or equivalent API GL-5) 📐 Dimensions Exterior Length: 4250 mm (167.3 in) Width: 1775 mm (69.9 in) Height: 1310 mm (51.6 in) Wheelbase: 2272 mm (89.4 in) Weights Curb Weight: Approx. 1450 kg (3197 lbs) Gross Vehicle Weight Rating: Approx. 1800 kg (3968 lbs) 🛡️ Safety Features Ratings Crash Test Results: No standardized crash test ratings available from NHTSA/Euro NCAP for this era, but known for robust build quality. Active Features ABS: Standard Anti-lock Braking System (ABS) All Wheel Drive: Integral to performance and stability Passive Features Airbags: Driver's airbag standard Seatbelts: Three-point inertia reel seatbelts Chassis Design: Reinforced safety cage, crumple zones 💡 Technology Features Infotainment Audio System: Factory premium sound system (optional), cassette player Navigation: Not typically factory-equipped, aftermarket options available. Driver Assistance Traction Control: Limited to ABS and AWD system Climate Control HVAC: Manual or optional automatic climate control 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000 km (6,000 miles) or 1 year, whichever comes first. Check manual for specific conditions. Major Service Interval: Every 40,000 km (25,000 miles) or 2 years. Fluid Specifications Engine Oil Type: Synthetic SAE 5W-40 or 10W-40 (e.g., Mobil 1 Tri-Synthetic 0W-40 is commonly recommended for air-cooled Porsche engines for modern use, verify with manual) Engine Oil Capacity: Approx. 8.5 liters (9.0 US quarts) with filter change Brake Fluid Type: DOT 4 Coolant Type: N/A (Air-cooled engine) Known Issues Engine Bearings: Potential for main bearing wear, especially if oil pressure is not maintained or if abused. Valve Adjustment: Requires periodic adjustment (every ~20k miles) as it's not self-adjusting. Fuel Lines: Aging rubber fuel lines can degrade and become brittle, posing a fire risk. All Wheel Drive System: Viscous coupling unit can wear over time, affecting AWD performance. 📚 Vehicle History Brand Heritage Brand Legacy: Porsche's long history of motorsport and performance engineering Model Evolution Predecessor: Porsche 911 G-Series (specifically Carrera 3.2) Successor: Porsche 993 Carrera 4 Production Production Years: 1989-1994 Manufacturing Location: Stuttgart-Zuffenhausen, Germany 🏆 Awards & Recognition Recognitions Automotive Press: Consistently praised for its driving dynamics, all-wheel-drive capability, and evolution of the iconic 911 silhouette.