🏷️ Basic Information Identification Make: BMW Model: 5-Series Chassis Code: E28 Model Variant: 528e Year: 1982 👋 Introduction Market Position Era: The E28 generation represented BMW's mid-size luxury sedan offering in the early to mid-1980s, known for its blend of performance, luxury, and sophisticated engineering. Competitive Analysis Competitors: Competed against vehicles like the Mercedes-Benz W123, Audi 100, and Volvo 240. Key Features Design Philosophy: Continuation of BMW's 'ultimate driving machine' philosophy with a focus on driver engagement and refined handling. Target Audience: Professionals and driving enthusiasts seeking a premium, reliable, and engaging sedan. Manual Value Proposition Purpose: Provides essential technical information for maintaining, diagnosing, and repairing the electrical systems of the 1982 BMW 528e (E28). 📋 Manual Details Coverage Areas Title: Electrical Troubleshooting Manual (ETM) Page Count Total Pages: 1200 Manual Type Type: Electrical Troubleshooting Manual (ETM) Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Electrical Systems: Comprehensive coverage of all electrical systems including ignition, starting, charging, lighting, instrumentation, comfort systems, engine control, and more. Wiring Diagrams: Detailed and accurate wiring diagrams for all vehicle electrical circuits. Component Locations: Identification and location of all electrical components. Troubleshooting Charts: Systematic troubleshooting flowcharts for diagnosing electrical faults. Procedures Included Diagnostic Procedures: Step-by-step diagnostic procedures for identifying and resolving electrical issues. Repair Procedures: Detailed repair and replacement procedures for electrical components and wiring harnesses. Testing Procedures: Procedures for testing electrical components and circuits using appropriate tools and equipment. Technical Depth Depth: Advanced diagnostic and repair procedures suitable for professional technicians and experienced DIY enthusiasts. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: High-quality printable pages, allowing users to print specific sections or the entire manual. Binding Type Binding: Digital Download (no physical binding) Paper Type Paper Quality: Not Applicable (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: M20B27 Configuration: Inline 6-cylinder Displacement: 2.7 Liters (2693 cc) Bore X Stroke: 84.0 mm x 81.0 mm Compression Ratio: 8.5:1 (US Spec) Performance Horsepower Hp: 121 hp @ 4250 rpm (US Spec) Torque Lb Ft: 170 lb-ft @ 2500 rpm (US Spec) Fuel System Fuel Delivery: Bosch L-Jetronic Fuel Injection Ignition System Ignition Type: Electronic Ignition (Bosch Motronic for later E28s, likely L-Jetronic with separate ignition control for 1982) Cooling System Coolant Type: BMW Blue Coolant or compatible G48 ethylene glycol coolant Lubrication System Oil Capacity Quarts: 6.0 Quarts (with filter) Recommended Oil Viscosity: 10W-40 or 15W-50 (depending on climate) 🔧 Transmission Standard Transmission Type: 4-Speed Manual (Getrag 260) Optional Transmission Type: 3-Speed Automatic (ZF 4HP22) Features Clutch Type: Dry single-plate clutch (Manual) Fluid Specifications Manual Transmission Fluid: GL-4 Gear Oil, e.g., 75W-90 Automatic Transmission Fluid: Dexron III or equivalent 📐 Dimensions Exterior Length: 183.6 inches (4663 mm) Width: 67.9 inches (1725 mm) Height: 55.7 inches (1415 mm) Wheelbase Wheelbase: 103.7 inches (2634 mm) Weights Curb Weight Lbs: Approx. 3150-3300 lbs (depending on transmission and options) Gross Vehicle Weight Rating Gvwr Lbs: Approx. 4200 lbs 🛡️ Safety Features Ratings Safety Certification: While specific NHTSA ratings for 1982 models are often not readily available in the same format as modern vehicles, BMWs of this era were engineered with a focus on occupant safety for their time. Active Features Brakes: Front: Ventilated Discs, Rear: Solid Discs. ABS was not standard on this model year. Suspension: Independent front suspension (MacPherson struts), Semi-trailing arm rear suspension, designed for stability and handling. Passive Features Airbags: Not available. Seatbelts: Three-point front seatbelts with automatic retractors, lap belts for rear passengers. Body Construction: Unitized steel body construction with crumple zones. 💡 Technology Features Infotainment Audio System: Factory AM/FM radio with cassette player. Options for upgraded sound systems. On Board Computer: Optional On-Board Computer (OBC) displaying trip data, fuel consumption, and diagnostic information. Driver Assistance Cruise Control: Available as an option. Climate Control: Manual or optional automatic climate control system. Connectivity Original Connectivity: No modern connectivity features like Bluetooth or USB. Relies on analog systems. 🔧 Maintenance Service Intervals Oil Change Interval Miles: Every 5,000 - 7,500 miles or 12 months, whichever comes first (recommended for longevity). Spark Plug Replacement Miles: Typically every 20,000 - 30,000 miles, depending on type (check manual for specifics). Coolant Flush Miles: Every 2-3 years or 30,000 miles. Timing Belt Replacement Miles: The M20 engine uses a timing belt. Replacement recommended every 60,000 miles or 5 years. Fluid Specifications Brake Fluid Type: DOT 3 or DOT 4 Power Steering Fluid Type: ATF Dexron III or equivalent Known Issues Electrical: Corrosion in fuse boxes, degraded wiring insulation, failing headlight relays, OBC (On-Board Computer) issues, dashboard warning light problems. Engine: Head gasket failures (less common on M20 than some others), coolant leaks from hoses and water pump, valve cover gasket leaks, idle control valve issues. Fuel System: Clogged fuel injectors, failing fuel pumps, vacuum leaks affecting performance. Common Repairs Cooling System: Replacement of radiator,...