🏷️ Basic Information Identification Make: BMW Model: 528i Model Variant: 528 Model Years Covered: 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988 Codes Chassis Code: E28 👋 Introduction Market Position Vehicle Segment: Executive mid-size sedan. Target Audience: Discerning drivers prioritizing performance, luxury, and build quality. Competitive Analysis Key Competitors: Mercedes-Benz W123/W124, Audi 100/200, Jaguar XJ. Key Features Driving Dynamics: Renowned for balanced handling, responsive steering, and a comfortable ride, characteristic of BMW's 'Ultimate Driving Machine' ethos. Powertrain: Smooth and torquey inline-six engines, offering refined performance. Build Quality: Exceptional German engineering and build quality, contributing to longevity. Interior Design: Driver-focused cockpit with high-quality materials and ergonomic layout. 📋 Manual Details Coverage Areas Manual Type: Workshop Service Repair Manual Language: English Format: Downloadable Digital Format (likely PDF) Source: Official Factory Service Manual Page Count Page Count Estimated: Hundreds of pages (specific number not provided, typical for comprehensive manuals) 📖 Manual Coverage Systems Covered Engine: Comprehensive coverage including M30 engine variants, specifications, diagnostics, disassembly, assembly, and repair. Fuel System: Bosch L-Jetronic fuel injection system details, fuel pump, injectors, fuel pressure regulator, fuel tank, and lines. Ignition System: Electronic ignition system, coil, distributor, spark plugs, timing adjustments. Cooling System: Radiator, water pump, thermostat, coolant hoses, fan, cooling system diagnostics. Exhaust System: Exhaust manifold, catalytic converter (if applicable for model year/region), muffler, exhaust pipes, hangers, and emission controls. Transmission: Coverage for both manual (Getrag 260) and automatic (ZF 4HP22) transmissions, including removal, installation, disassembly, assembly, and fluid specifications. Drivetrain: Clutch, driveshaft, universal joints, differential, rear axle, and wheel bearings. Suspension: Front McPherson struts, rear semi-trailing arms, shock absorbers, springs, bushings, control arms, ball joints, and alignment procedures. Steering: Power steering system, steering rack, steering column, tie rods, and associated components. Brakes: Front ventilated discs, rear solid discs (typically), brake calipers, master cylinder, brake booster, ABS (if equipped), brake lines, and bleeding procedures. Electrical System: Complete wiring diagrams, battery, alternator, starter motor, fuses, relays, lighting system, horn, wipers, power windows, central locking, and dashboard instrumentation. Body And Chassis: Body panel removal and installation, doors, hood, trunk, bumpers, interior trim, glass, and chassis components. Climate Control: HVAC system, blower motor, heater core, evaporator, refrigerant system, and controls. Safety Systems: Seat belts, passive restraints (if applicable for the era), and general safety feature information. Procedures Included Scheduled Maintenance: Detailed service intervals for oil changes, filter replacements, tune-ups, fluid checks, and inspections. Routine Inspections: Guidelines for inspecting belts, hoses, brakes, suspension, tires, and fluids. Troubleshooting: Diagnostic procedures for common and uncommon problems, including symptom-based troubleshooting charts. Repair And Overhaul: Step-by-step instructions for component removal, disassembly, cleaning, inspection, repair, reassembly, and installation. Engine Rebuild: Comprehensive procedures for engine disassembly, rebuilding pistons, rings, bearings, valve train, and cylinder head refurbishment. Transmission Rebuild: Detailed instructions for overhauling both manual and automatic transmissions, including clutch packs, torque converters, and gear sets. Brake System Service: Brake pad replacement, rotor resurfacing/replacement, caliper overhaul, brake line replacement, and bleeding. Electrical Diagnostics: Using wiring diagrams to diagnose electrical faults, component testing, and circuit tracing. Suspension And Steering Alignment: Procedures for wheel alignment, caster, camber, toe adjustments, and replacement of worn suspension components. Bodywork Repair: Guidance on body panel alignment, minor dent repair, and trim piece replacement. Technical Depth Diagnostic Capabilities: Advanced diagnostic procedures for engine management, fuel injection, and electrical systems, often requiring specialized tools of the era. Rebuild Instructions: Complete rebuild procedures for major mechanical components like the engine and transmission. Specifications Accuracy: Provides precise torque specifications, clearances, fluid capacities, and electrical resistance values. Diagnostic Tools: Mentions or implies the use of factory-specific diagnostic tools and equipment common in the late 80s for proper diagnosis. 📊 Manual Specifications File Format File Type: Digital Download (typically PDF) Searchability: Likely searchable text within the PDF for efficient information retrieval. Print Quality Resolution Suitability: High enough resolution for clear viewing and potential printing of diagrams and text. Binding Type Binding: Not applicable for digital download, but original manuals were typically bound. Paper Type Paper Quality: Not applicable for digital download, but original manuals used durable paper stock. ⚙️ Engine Specifications Primary Engine Engine Code: M30B28 Engine Type: Inline 6-cylinder, SOHC Displacement: 2.8 Liters (2784 cc) Performance Horsepower: Approx. 171-181 hp @ 5800-6000 rpm (depending on market and specific variant) Torque: Approx. 170-181 lb-ft (230-245 Nm) @ 3000-3500 rpm (depending on market and specific variant) Fuel System Injection System: Bosch L-Jetronic Electronic Fuel Injection Fuel Type: Unleaded Gasoline Compression Ratio Compression Ratio: Approximately 9.2:1 Engine Management ECU Type: Early digital engine control unit (ECU) for fuel and ignition timing. 🔧 Transmission Standard Transmission Type Standard: 4-speed manual transmission (Getrag 260) Optional Transmission Type Optional: ZF 4-speed automatic transmission (4HP22) Features Clutch Type: Single dry plate clutch (manual transmission) Rear Axle Ratio: Typically 3.45:1 or similar (varies with transmission type and market) 📐 Dimensions Exterior Length: Approx. 4,730 mm (186.2 in)...