🏷️ Basic Information Identification Make: Porsche Model: 928 Year: 1979 Market: USA Model Codes Internal Product Code: P92879CC 👋 Introduction Market Position Vehicle Class: Luxury Grand Tourer (GT) Target Demographic: Affluent buyers seeking performance and luxury Competitive Analysis Competitors 1979: Ferrari 400 GT, Maserati Kyalami, Aston Martin DBS Key Features Unique Selling Proposition: Front-engine, rear-wheel-drive V8 GT with innovative transaxle design Design Philosophy: Comfort, performance, and advanced technology for long-distance touring 📋 Manual Details Coverage Areas Electrical Systems: Comprehensive Troubleshooting: Extensive electrical issue resolution Page Count Estimated Pages: 150-250 Manual Type Type: Current Flow Diagram / Electrical Troubleshooting Manual Language Language: English Format Delivery Format: Digital (Likely PDF, based on description) 📖 Manual Coverage Systems Covered Lighting System: Headlights, taillights, interior lighting, auxiliary lighting Ignition System: Ignition coil, distributor, spark plugs, starter circuit Fuel System Electrical: Fuel pump relay, fuel injection system wiring (if applicable for 1979 USA) Cooling System Electrical: Radiator fan control, temperature sensors Instrumentation: Speedometer, tachometer, fuel gauge, oil pressure gauge, warning lights Wiper Washer System: Wiper motor, washer pump, switch wiring Horn System: Horn, horn relay, horn button wiring Power Windows: Window motor, switch wiring (if equipped) Power Seats: Seat motor, switch wiring (if equipped) HVAC Controls: Blower motor, climate control unit wiring Audio System Wiring: Radio wiring, speaker connections Interior Lighting: Dome light, vanity mirror lights, footwell lights Exterior Lighting: Headlights (low/high beam), parking lights, brake lights, turn signals, reverse lights Charging System: Alternator wiring, voltage regulator wiring Accessories: Cigar lighter, power outlets Procedures Included Component Testing: Testing of fuses, relays, switches, motors, solenoids Wiring Troubleshooting: Identifying open circuits, short circuits, ground faults Connector Diagnosis: Inspection and testing of electrical connectors Fuse Relay Function: Understanding the purpose and operation of fuses and relays Diagnostic Techniques: Step-by-step troubleshooting flowcharts Component Replacement Guidance: Implied by the nature of troubleshooting electrical faults Technical Depth Depth: Advanced Electrical Diagnostics Understanding Level: Suitable for individuals with basic electronic knowledge 📊 Manual Specifications File Format Digital Format: PDF Searchability: Searchable text content Print Quality Clarity: High-resolution diagrams and text Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: M329 (for early 928) Configuration: V8, 90-degree Displacement Liters: 4.5 L Displacement Ci: 275.5 cu in Bore X Stroke Mm: 94.1 x 80.0 mm Compression Ratio: 8.5:1 Performance Horsepower Bhp: 219 bhp @ 5000 rpm (USA Spec) Torque Lb Ft: 245 lb-ft @ 3600 rpm (USA Spec) Fuel System Induction: Bosch K-Jetronic CIS (Continuous Injection System) Fuel Type: Unleaded Gasoline Engine Management Ignition Type: Electronic Ignition (breakerless) Engine Control Unit: None (Mechanical fuel injection) 🔧 Transmission Standard Type: 5-speed Manual Transaxle (G28/01) Optional Type: 3-speed Automatic Transaxle (W28/01) Features Transaxle Design: Integrated transmission and rear differential Fluid Type Manual Transmission Fluid: Hypoid Gear Oil SAE 75W-90 Automatic Transmission Fluid: Dexron III (or equivalent) 📐 Dimensions Exterior Length Mm: 4680 mm Width Mm: 1785 mm Height Mm: 1280 mm Wheelbase Mm: 2420 mm Weights Curb Weight Kg: 1580 kg Gross Vehicle Weight Kg: 1950 kg Cargo Rear Luggage Capacity Liters: Approx. 250 L (excluding spare tire well) 🛡️ Safety Features Ratings Crash Test Data: Limited data available for this era; focus on inherent structural integrity Active Features Brakes: 4-wheel Disc Brakes (Vented Front) Steering: Power-assisted Rack and Pinion Passive Features Seatbelts: 3-point Inertial Reel Seatbelts Interior Materials: Designed for occupant protection 💡 Technology Features Infotainment Audio System: Factory AM/FM Radio with Cassette Player (optional) Speakers: Factory Speaker Configuration (variable by trim) Driver Assistance Cruise Control: Standard (for USA Models) Anti Lock Brakes: Not available on early 1979 models Interior Tech Climate Control: Manual or Automatic Climate Control (optional) Dashboard Design: Futuristic 'cockpit' style with extensive instrumentation 🔧 Maintenance Service Intervals Oil Change Interval Km: Every 10,000 km or annually Major Service Interval Km: Every 40,000 km (includes timing belt, accessory belts) Fluid Specifications Engine Oil Type: API SG/SH, SAE 10W-40 or 20W-50 Engine Oil Capacity Liters: 8.5 L (with filter) Coolant Type: Porsche G48 (or 50/50 mix of ethylene glycol and distilled water) Brake Fluid Type: DOT 3 or DOT 4 Known Issues Common Electrical Faults: Corrosion in wiring harnesses, aging relays, dashboard warning light failures, headlight motor issues Common Mechanical Faults: Timing belt failure (critical), cooling system leaks, fuel distributor issues 📚 Vehicle History Brand Heritage Porsche Legacy: Renowned for sports car engineering and racing success Model Evolution 928 Development: Designed to replace the 911, offering a more comfortable and modern GT experience First Generation Introduction: 1977 Geneva Motor Show Production Production Period: 1978-1995 Manufacturing Location: Stuttgart, Germany 🏆 Awards & Recognition Recognitions Import Car Of The Year: Motor Trend Import Car of the Year - 1978 (for the 1978 model year introduction) Ratings Performance Reviews: Consistently praised for its V8 power, handling balance, and GT capabilities