🏷️ Basic Information Identification Make: BMW Model: 5 Series Generation Chassis Codes: E28, E34 Production Years Covered: 1981-1991 👋 Introduction Market Position Segment: Executive Sedan / Luxury Sports Sedan Competitive Analysis Competitors: Mercedes-Benz W124 E-Class, Audi 100/200, Jaguar XJ, Volvo 700 Series Key Features Design Philosophy: German engineering, sporty handling, driver-focused cockpit, robust build quality, elegant styling Target Audience: Discerning drivers seeking performance, comfort, and prestige Manual Value Proposition Usefulness: Essential for owners and independent mechanics to maintain, diagnose, and repair these sophisticated vehicles accurately and efficiently. 📋 Manual Details Coverage Areas Regions Covered: Global (specifications may vary by market) Page Count Estimated Page Count: 1000+ (comprehensive, likely multi-volume equivalent) Manual Type Type: Complete Workshop Service and Repair Manual Language Language: English Format Format: Downloadable Digital Format (likely PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel, ignition, cooling, exhaust, lubrication, M20, M30, M88, S38, M50 engines Transmission: Manual (Getrag 260, 265), Automatic (ZF 4HP22, 4HP24, 4HP24A) Drivetrain: Clutch, driveshaft, differential, axles Suspension: Front and rear suspension, shock absorbers, springs, control arms, bushings, anti-roll bars Steering: Power steering system, steering rack, steering column Brakes: Hydraulic system, disc brakes (front/rear), ABS (optional), parking brake Electrical: Battery, charging system, starter, lighting, ignition, engine management, instrumentation, power accessories, wiring diagrams Body: Body panels, doors, windows, locks, exterior trim, interior trim, HVAC system Diagnostics: Troubleshooting guides, fault code diagnosis (OBD I on later models), component testing Procedures Included Maintenance: Routine servicing, oil changes, filter replacements, fluid checks and changes, spark plug replacement Repair: Engine overhaul, transmission rebuild, suspension component replacement, brake system service, electrical system diagnostics and repair Troubleshooting: Step-by-step diagnostic procedures for common and uncommon issues Specifications: Torque specifications, clearances, timing settings, electrical resistance values Technical Depth Depth: Comprehensive: Covers basic maintenance to full engine and transmission overhauls, including detailed diagnostics and electrical schematics. 📊 Manual Specifications File Format File Type: PDF Searchable: Yes (typically, depending on original scan quality) Print Quality Quality: High-resolution scans of original factory documentation Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine E28 Engines: 2.5L I6 (M20B25), 2.7L I6 (M20B27), 3.2L I6 (S38B32 - M5, M50i) E34 Engines: 2.0L I6 (M20B20), 2.5L I6 (M20B25, M50B25), 3.0L I6 (M30B30), 3.4L I6 (M30B34), 3.6L I6 (S38B36 - M5), 3.8L I6 (S38B38 - M5) Performance Horsepower Range: 125 hp (M20B20) to 315 hp (S38B38) Torque Range: 180 Nm (M20B20) to 405 Nm (S38B38) Fuel System Fuel Delivery: Bosch L-Jetronic, Motronic electronic fuel injection Engine Management Ignition Type: Distributorless Ignition System (DIS) or Distributor ignition (depending on model/year) Engine Construction Block Material: Cast Iron Head Material: Aluminum Alloy 🔧 Transmission Standard E28 Transmission Standard: 4-speed Automatic (ZF 4HP22) or 5-speed Manual (Getrag 260) E34 Transmission Standard: 5-speed Manual (Getrag 260) or 4-speed Automatic (ZF 4HP22/4HP24) Optional E34 Transmission Optional: 5-speed Manual (Getrag 280 on M5) Features Clutch Type: Hydraulic clutch actuation Fluid Specifications Manual Transmission Fluid: BMW Synchromesh Oil (e.g., 83 22 2 339 072) or equivalent SAE 75W-90 GL-4/GL-5 Automatic Transmission Fluid: Dexron II, Dexron III, or ZF LifeguardFluid 5 📐 Dimensions Exterior E28 Length: Approx. 4,700 - 4,860 mm (185 - 191 in) E34 Length: Approx. 4,700 - 4,850 mm (185 - 191 in) Weights E28 Curb Weight Range: Approx. 1,400 - 1,600 kg (3,086 - 3,527 lbs) E34 Curb Weight Range: Approx. 1,500 - 1,750 kg (3,307 - 3,858 lbs) Cargo Trunk Volume: Approx. 500-550 Liters (17.7-19.4 cu ft) 🛡️ Safety Features Ratings Crash Test Data: Limited official ratings from modern standards; known for robust chassis construction. Active Features ABS: Available on many models, especially later E34. Traction Control: Optional ASC/ASC+T on some later E34 models. Passive Features Airbags: Driver airbag standard on later models; passenger airbag optional/standard on very late E34. Seatbelts: 3-point inertia reel seatbelts front and rear. 💡 Technology Features Infotainment Audio System: Factory AM/FM cassette players, optional CD changers, premium sound systems (e.g., HiFi) Navigation: Optional early GPS navigation systems (on later E34) - primitive by modern standards. Driver Assistance Cruise Control: Standard or optional across most models. Comfort Features Climate Control: Manual HVAC, optional automatic climate control (ECC) Seating: Power adjustable seats with memory function (optional), heated seats (optional). 🔧 Maintenance Service Intervals Oil Change Interval: Typically 7,500 - 10,000 miles (12,000 - 16,000 km) or annually, depending on driving conditions. Spark Plug Replacement: Approx. 30,000 miles (48,000 km) for standard plugs; longer for platinum/iridium. Timing Belt Replacement: N/A (all covered engines are chain-driven) Fluid Specifications Engine Oil Type: API SG/SH or ACEA A2/A3. Viscosity: 15W-40, 10W-40, 10W-30 (depending on climate). e.g., BMW High Performance SAE 5W-30. Coolant Type: Ethylene Glycol based, BMW Blue Antifreeze (G48) or equivalent, mixed 50/50 with distilled water. Brake Fluid Type: DOT 4 (e.g., BMW Brake Fluid DOT 4 82 11 1 468 027) Known Issues Common E28 Issues:...