🏷️ Basic Information Identification Make: BMW Model: 5 Series Model Variant: 520i Generation Generation Code: E34 Codes Chassis Code: E34 Engine Codes: M20B20 👋 Introduction Market Position Vehicle Class: Executive Sedan Segment: Mid-size Luxury Sedan Competitive Analysis Key Competitors: Mercedes-Benz W124 E-Class, Audi V8 Quattro, Jaguar XJ, Lexus LS 400 (later in generation) Key Features Design Philosophy: Balanced performance, luxury, and engineering prowess, characteristic of BMW's 'ultimate driving machine' ethos. Chassis Innovation: Introduction of MacPherson strut front suspension and semi-trailing arm rear suspension for improved handling. Aerodynamics: Designed with a focus on improved aerodynamics over its predecessor, the E28. 📋 Manual Details Coverage Areas Manual Coverage Scope: Complete Workshop Service Repair Page Count Estimated Page Count: 500+ Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Ignition System, Exhaust System, Cooling System, Lubrication System Drivetrain: Transmission (Manual & Automatic), Clutch, Driveshafts, Differential, Axles Chassis: Suspension (Front & Rear), Steering System, Braking System (ABS equipped variations covered) Electrical: Starter, Alternator, Battery, Lighting System, Instrumentation, Wiring Diagrams, ECU (Engine Control Unit) Body And Interior: Body Panels, Doors, Bumpers, Seats, Interior Trim, Climate Control System, Sunroof (if equipped) Procedures Included Maintenance Procedures: Oil Changes, Filter Replacements, Spark Plug Service, Coolant Flush, Belt Inspection/Replacement, Brake Pad Replacement, Tire Rotation Diagnostic Procedures: Troubleshooting Faults, Reading Diagnostic Codes (OBD I), Component Testing Repair Procedures: Engine Rebuilds, Transmission Overhaul, Suspension Component Replacement, Brake System Repairs, Electrical Component Replacement, Body Panel Repair Adjustment Procedures: Valve Adjustment, Idle Speed Adjustment, Clutch Adjustment, Headlight Aiming Installation Procedures: Component Installation, Accessory Installation (factory specified) Technical Depth Diagnostic Depth: Advanced, including electrical schematics and component testing procedures Repair Depth: Comprehensive, from basic maintenance to complete engine and transmission overhaul Specifications Detail: Detailed torque specifications, clearances, fluid capacities, and electrical resistance values 📊 Manual Specifications File Format Digital Format: PDF Searchability: Searchable text for quick information retrieval Print Quality Printable: Yes, fully printable Resolution: High resolution for clear diagrams and text Binding Type Binding Type For Printed: N/A (Digital Download) Paper Type Paper Type For Printed: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder, DOHC (Double Overhead Camshaft) Engine Code: M20B20 Displacement: 1990 cc (2.0 Liters) Bore X Stroke: 80.0 mm x 66.0 mm Performance Horsepower: 129 hp @ 5800 rpm (approx.) Torque: 174 Nm (128 lb-ft) @ 4300 rpm (approx.) Fuel System Fuel Delivery: Bosch Motronic Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline Engine Features Valvetrain: SOHC (Single Overhead Camshaft) with 2 valves per cylinder Compression Ratio: 8.5:1 (typical) 🔧 Transmission Standard Standard Transmission: 5-speed Manual Optional Optional Transmission: 4-speed Automatic (ZF 4HP22) Features Drive Type: Rear-Wheel Drive (RWD) Clutch Type: Hydraulic Actuated Single Dry Plate 📐 Dimensions Exterior Length: 4719 mm (185.8 in) Width: 1751 mm (68.9 in) Height: 1412 mm (55.6 in) Wheelbase: 2799 mm (110.2 in) Weights Curb Weight: 1430 kg (3153 lbs) (approx. manual transmission) Gross Vehicle Weight: 1950 kg (4299 lbs) (approx.) Cargo Trunk Volume: 460 liters (16.2 cu ft) 🛡️ Safety Features Ratings Crash Test Data: Limited specific published ratings for this model year and variant; rely on general E34 platform safety characteristics. Active Features Braking System: Hydraulically operated, power-assisted disc brakes (front), drum or disc (rear). ABS optional on some models. Traction Control: ASC (Automatic Stability Control) available on some later E34 models, but less common on 520i. Passive Features Airbags: Driver airbag became standard later in the E34 lifecycle; early models may not have one. Seatbelts: Three-point inertia-reel seatbelts with front-seat belt pretensioners. 💡 Technology Features Infotainment Audio System: Factory BMW Bavaria C or similar radio/cassette systems, with optional CD changer. Onboard Computer: Optional On-Board Computer (OBC) displaying fuel consumption, average speed, and fault codes. Driver Assistance Cruise Control: Standard or optional cruise control system. Park Distance Control: Not typically available on this model. Connectivity Connectivity Features: Limited to basic radio and optional external phone integration for its era. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 - 10,000 miles (12,000 - 16,000 km) or annually, whichever comes first (BMW Condition Based Service recommended). Spark Plug Replacement: Approximately every 30,000 miles (48,000 km) for standard plugs, longer for platinum/iridium. Coolant Flush Interval: Every 2-3 years or 30,000 miles (48,000 km). Fluid Specifications Engine Oil Type: SAE 10W-40 or 10W-50 synthetic or semi-synthetic oil meeting BMW Longlife-98 specifications (check manual for exact spec). Coolant Type: Ethylene Glycol based coolant (BMW blue or green coolant) mixed with distilled water at a 50/50 ratio. Brake Fluid Type: DOT 3 or DOT 4 brake fluid. Transmission Fluid Manual: GL-4 or GL-5 gear oil (check manual for specific viscosity and API rating, often 75W-90 or 80W-90). Transmission Fluid Automatic: Dexron II or Dexron III ATF (Automatic Transmission Fluid). Known Issues Common Wear Items: Vibration damper...