🏷️ Basic Information Identification Make: BMW Model: 528i Model Code: E28 Production Years Covered: 1981-1988 Codes Engine Code: M30B28 (various iterations) 👋 Introduction Market Position Market Position: The BMW 528i (E28) represented BMW's mid-size luxury sedan, positioned as a performance-oriented executive car offering refined handling, a powerful engine, and high-quality construction. It competed with models from Mercedes-Benz (W123/W124 E-Class), Audi, and Cadillac. Competitive Analysis Competitive Analysis: The E28 5-series, particularly the 528i, was lauded for its superior driving dynamics and driver engagement compared to many competitors. Its robust engineering and performance, especially with the M30 engine, made it a favorite among enthusiasts and a benchmark for sport sedans. Key Features Key Features: Renowned handling, powerful inline-6 engine, driver-focused interior, solid build quality, sophisticated suspension design. 📋 Manual Details Coverage Areas Coverage Areas: Full mechanical and electrical systems, maintenance, troubleshooting, repair procedures, specifications, and diagrams for the BMW 528i E28 chassis. Page Count Page Count: Estimated 500-1000+ pages (typical for comprehensive workshop manuals of this era). Manual Type Manual Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems Covered: Engine (M30 inline-6, fuel injection, ignition, cooling, lubrication), Drivetrain (transmission, clutch, driveshaft, differential), Suspension (front & rear, springs, shocks, bushings), Brakes (hydraulic system, calipers, rotors, parking brake), Steering (power steering system, steering column), Electrical System (battery, alternator, starter, lighting, fuses, relays, wiring diagrams), Fuel System (tank, pump, lines, injectors), Exhaust System, Climate Control, Body & Chassis, Interior Components, Diagnostics & Troubleshooting. Procedures Included Procedures Included: Routine maintenance (oil changes, filter replacements, spark plugs, belts), component removal and installation, engine overhaul, transmission overhaul, brake system service, suspension component replacement, steering system repair, electrical diagnostics, fuel system cleaning and repair, heating and A/C system service, body panel alignment and repair, troubleshooting common issues, diagnostic fault codes (where applicable). Technical Depth Technical Depth: Comprehensive. Covers everything from basic preventative maintenance to in-depth component overhaul and advanced diagnostic procedures, including torque specifications, timing procedures, and electrical schematics. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution scans suitable for printing or digital viewing, preserving original diagrams and clarity. Binding Type Binding Type: N/A (Digital PDF Download) Paper Type Paper Type: N/A (Digital PDF Download) ⚙️ Engine Specifications Primary Engine Primary Engine: M30B28 inline-6, SOHC, 12-valve Performance Horsepower: Approximately 182-184 hp @ 5800 rpm (depending on market and specific version) Torque: Approximately 203-207 lb-ft @ 4500 rpm (depending on market and specific version) Fuel System Fuel System: Bosch L-Jetronic or Motronic fuel injection Displacement Displacement: 2.8 Liters (2788 cc) Engine Codes Variations Engine Codes Variations: M30B28 (primary engine for 528i, though other M30 variants like 3.2L were in other models of the E28) Cooling System Cooling System: Pressurized coolant system with fan and thermostat. Lubrication System Lubrication System: Wet sump with oil pump and oil filter. 🔧 Transmission Standard Standard Transmission: 4-speed manual (ZF S4-18/3, later Getrag 260 5-speed became more common) Optional Optional Transmission: 3-speed automatic (ZF 3HP22) Features Features: Rear-wheel drive, robust construction, often featuring a limited-slip differential as an option. Fluid Type Transmission Fluid Manual: GL-4 gear oil (e.g., Castrol EP 75W/90, Pentosin). Transmission Fluid Automatic: Dexron III (or equivalent) 📐 Dimensions Exterior Length: Approx. 4719 mm (185.8 in) Width: Approx. 1700 mm (66.9 in) Height: Approx. 1410 mm (55.5 in) Wheelbase: Approx. 2795 mm (110.0 in) Weights Curb Weight: Approx. 1400-1500 kg (3086-3307 lbs), depending on transmission and options. Cargo Trunk Capacity: Approx. 460 liters (16.2 cu ft) 🛡️ Safety Features Ratings Safety Ratings: While official crash test ratings from modern agencies (NHTSA, IIHS) are not directly applicable to vehicles of this era, the E28 was built with a focus on structural integrity and passive safety features for its time. Active Features Active Features: Four-wheel disc brakes (ventilated front), power-assisted steering, ABS (optional on later models). Passive Features Passive Features: Reinforced passenger cell, crumple zones, padded dashboard, seatbelts (three-point front, two-point rear initially, later three-point rear). 💡 Technology Features Infotainment Infotainment Features: Basic AM/FM radio, cassette player, optional upgraded sound systems. Analog gauges and controls. Driver Assistance Driver Assistance Features: Limited by modern standards. Optional ABS on later models, power steering, cruise control. Connectivity Connectivity Features: None by modern standards. Primarily mechanical and electrical systems. 🔧 Maintenance Service Intervals Oil Change Interval: Recommended every 5,000-7,500 miles or 6-12 months, using synthetic or high-quality conventional oil. Spark Plug Replacement: Approximately every 20,000-30,000 miles, depending on plug type (e.g., copper vs. platinum). Timing Belt Or Chain: The M30 engine uses a timing chain, which is designed for the life of the engine but may require tensioner inspection and replacement due to wear. Fluid Specifications Engine Oil Specification: API SG or higher, SAE 10W-40 or 15W-40 (check manual for exact viscosity based on temperature). Coolant Specification: BMW Blue Antifreeze/Coolant concentrate mixed 50/50 with...