🏷️ Basic Information Identification Make: BMW Model: 5 Series Generation E-Code Designation: E28 (1981-1988), E34 (1988-1996, with 1991 being the cutoff for this manual) Codes Applicable Years: 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991 👋 Introduction Market Position Target Audience: BMW enthusiasts, DIY mechanics, owners seeking to maintain or restore their E28 or E34 5 Series. Competitive Analysis Value Proposition: Provides professional-level repair information at a fraction of dealership service costs, enabling significant savings on maintenance and repairs. Key Features Comprehensiveness: Covers all diagnostic and repair procedures from A-Z for a wide range of models and engine variants within the E28 and E34 generations. Usability: Easy to use, view, and print specific procedures without requiring advanced computer skills. 📋 Manual Details Coverage Areas Geographic Coverage: Global (reflects common BMW specifications) Page Count Estimated Page Count: Likely several thousand pages (typical for comprehensive digital workshop manuals covering multiple models and years) Manual Type Type: Digital Workshop Repair Manual Language Language: English Format Format: Digital (likely PDF or similar, viewable and printable) 📖 Manual Coverage Systems Covered Mechanical Systems: Engine (M10, M20, M30, M88, S38, M50), Fuel System, Cooling System, Lubrication System, Exhaust System, Clutch, Manual Transmission, Automatic Transmission (ZF, Getrag), Drive Axles, Differential, Suspension (Front & Rear), Steering System, Braking System (ABS variations), Wheels & Tires Electrical Systems: Engine Management (Motronic variations), Ignition System, Fuel Injection, Lighting System, Instrumentation, Audio System, HVAC Controls, Power Accessories (windows, locks, mirrors), Body Electronics, Diagnostics (OBD-I) Procedures Included Maintenance Procedures: Oil Changes, Filter Replacements, Fluid Checks & Replenishments, Spark Plug Replacement, Belt Inspection & Replacement, Brake Pad & Rotor Service, Tire Rotation, Battery Service, Wiper Blade Replacement Repair & Rebuild Procedures: Engine Overhaul (top-end and full rebuild), Transmission Rebuild (manual and automatic), Clutch Replacement, Differential Overhaul, Suspension Component Replacement (bushings, ball joints, shocks, struts), Brake Caliper Rebuild, Steering Rack Replacement, Fuel Pump & Injector Service, Cooling System Repairs (radiator, water pump), Electrical Component Diagnosis & Replacement (alternator, starter, sensors), Body Panel Repair & Replacement Diagnostic Procedures: Troubleshooting guides for common symptoms, diagnostic trouble codes (DTCs) for OBD-I systems, electrical circuit tracing, component testing procedures Technical Depth Diagnostic Capability: Advanced diagnostics, including sensor data interpretation, actuator testing, and wiring diagram analysis for troubleshooting electrical and engine performance issues. Rebuild Specifications: Detailed internal component specifications for engine and transmission rebuilds, including torque values, clearances, and assembly procedures. Information Source: Mirrors information used by professional BMW technicians. 📊 Manual Specifications File Format Digital Format: Searchable text, printable pages, high-resolution images and diagrams. Print Quality Diagram Quality: High-quality photos, illustrations, and diagrams for clarity in repair procedures. Binding Type Digital Nature: No physical binding; digital format prevents wear and tear. Paper Type Digital Format: N/A (digital document) Computer Requirements Operating System Compatibility: Microsoft Windows (95, 98, 98SE, 2000, NT, ME, XP, Vista, Windows 7) and all Mac computers. ⚙️ Engine Specifications Primary Engine E28 Engine Variants: M10 (2.0L, 2.3L), M20 (2.5L, 2.7L 'eta'), M30 (2.8L, 3.2L, 3.5L), M88/S38 (3.5L for M5) E34 Engine Variants (Up To '91): M20 (2.0L, 2.5L), M30 (3.0L, 3.5L), M50 (2.5L, 3.0L, 3.5L - early versions) Performance Power Output Range: Approximately 105 hp (2.0L M10) to 310 hp (M88/S38 M5) Torque Output Range: Approximately 120 lb-ft to 330 lb-ft, depending on engine variant. Fuel System Fuel Delivery Systems: Carbureted (early E28), Bosch L-Jetronic, Motronic (various versions including LH-Jetronic and DME) Fuel Type: Unleaded gasoline (Premium recommended) 🔧 Transmission Standard E28 Standard Transmission: 4-speed manual (common), 5-speed manual (optional on many models) E34 Standard Transmission (Up To '91): 5-speed manual (Getrag 260/5 common) Optional Automatic Transmission Options: ZF 4HP22 (E28), ZF 4HP24 (E34), Getrag 4HP22 EH (E34 - Electronic Hydraulic) Features Clutch System: Hydraulically actuated diaphragm spring clutch. 📐 Dimensions Exterior E28 Overall Length: Approx. 188 inches (4785 mm) E34 Overall Length: Approx. 191 inches (4850 mm) Wheelbase: E28: 103.7 inches (2635 mm), E34: 111.5 inches (2832 mm) Weights Curb Weight Range: Approx. 3,100 lbs to 3,800 lbs (depending on model and engine) Gross Vehicle Weight Rating (Gvwr): Varies by model, typically 4,000 - 4,600 lbs. 🛡️ Safety Features Ratings Crash Safety: Both generations featured robust unibody construction for their era, with significant advances in crumple zones and structural integrity from E28 to E34. Specific NHTSA/Euro NCAP ratings are not as detailed as modern vehicles but were considered high for their time. Active Features Anti-Lock Braking System (ABS): Optional or standard on higher trims and later models (e.g., E34 predominantly offered ABS). Traction Control: Rarely available on E28, early forms (ASR) introduced on some E34 models towards the end of the covered period. Passive Features Seat Belts: Three-point seat belts with pretensioners (introduced later in the E28 lifecycle and standard on E34). Body Structure: Reinforced passenger cell, energy-absorbing steering column, side-impact protection beams (more advanced on E34). 💡 Technology Features Infotainment Audio...