🏷️ Basic Information Identification Make: BMW Model: 5 Series Model Code: E34 Variant: 518i Production Years Covered: 1990-1991 👋 Introduction Market Position Segment: Executive Sedan Positioning: The E34 5 Series was BMW's benchmark executive sedan, known for its blend of luxury, performance, and driving dynamics. The 518i represented the entry-level offering in many markets. Competitive Analysis Competitors: Mercedes-Benz W124 E-Class, Audi 100/200, Lexus LS 400, Jaguar XJ. Key Features Brand Philosophy: Sheer Driving Pleasure. Design Era: Characterized by BMW's signature kidney grille and Hofmeister kink, the E34 featured a more angular and aerodynamic design than its predecessor (E28). 📋 Manual Details Coverage Areas Coverage Scope: All repairs A-Z, all models within the specified years. Page Count Estimated Page Count: Approx. 500-800 pages (typical for comprehensive E34 manuals, exact count not provided but implied by 'Full & Complete'). Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, cylinder head, crankshaft, pistons, connecting rods, lubrication system, cooling system, fuel system (injection), exhaust system. Engine Management: Engine control unit (ECU) diagnostics, ignition system, fuel injection system (Bosch Motronic variants). Transmission: Manual transmission (Getrag 260) and Automatic transmission (ZF 4HP22) repair, maintenance, fluid specifications. Drivetrain: Clutch system, driveshaft, differential, rear axle, wheel bearings. Suspension: Front and rear suspension components (struts, control arms, bushings, springs, shock absorbers), steering system (rack and pinion), wheel alignment specifications. Brakes: Hydraulic brake system, brake pads, rotors, calipers, master cylinder, ABS (Anti-lock Braking System) diagnostics and components, parking brake. Electrical System: Battery, charging system (alternator), starting system (starter motor), lighting system, fuses, relays, wiring diagrams, diagnostic connectors. Body And Interior: Body panel removal and installation, doors, windows, locks, interior trim, climate control system (HVAC), seats. Chassis And Frame: Structural components, body sealant, undercoating. Procedures Included Maintenance Tasks: Oil changes, filter replacements, spark plug replacement, coolant flush, brake fluid service, battery testing, drive belt inspection and replacement. Troubleshooting: Systematic diagnostic procedures for common and uncommon faults, fault codes interpretation, performance issues. Repair Procedures: Detailed step-by-step instructions for component removal, repair, and reinstallation for all major systems. Component Rebuilds: Engine, transmission, differential, and brake caliper rebuilding procedures. Electrical Diagnostics: Wiring harness troubleshooting, sensor testing, actuator testing, ECU testing (where applicable). Technical Depth Depth: Comprehensive, covering everything from basic scheduled maintenance to complete engine and transmission overhauls, including detailed diagnostic procedures. 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable PDF (typical for professional manuals). Print Quality Printability: Printable pages for workshop use. Binding Type Binding: N/A (Digital PDF format) Paper Type Paper Type: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Code: M40B18 Configuration: Inline 4-cylinder Displacement: 1.8 Liters (1796 cc) Bore X Stroke: 84 mm x 81 mm Compression Ratio: 8.8:1 Performance Horsepower: 113 hp (83 kW) at 5500 rpm Torque: 117 lb-ft (160 Nm) at 3250 rpm Fuel System Fuel Delivery: Bosch Motronic M1.3 fuel injection Fuel Type: Unleaded gasoline (91 octane RON minimum recommended) Lubrication Oil Capacity: Approx. 4.25 Liters (4.5 US quarts) with filter change. Cooling Coolant Capacity: Approx. 8.5 Liters (9.0 US quarts). 🔧 Transmission Standard Type: 5-speed Manual Transmission (Getrag 260/5) Optional Type: 4-speed Automatic Transmission (ZF 4HP22 EH) Features Manual Gear Ratios: 1st: 4.235, 2nd: 2.520, 3rd: 1.680, 4th: 1.240, 5th: 1.000, Reverse: 3.730 Manual Final Drive Ratio: 3.46:1 Automatic Fluid Type: Dexron II or equivalent. Manual Fluid Type: BMW recommends MTF LT-2 or an equivalent 75W-80/75W-90 GL-4 synthetic gear oil. 📐 Dimensions Exterior Length: 4720 mm (185.8 inches) Width: 1751 mm (68.9 inches) Height: 1410 mm (55.5 inches) Wheelbase: 2797 mm (110.1 inches) Front Track: 1470 mm (57.9 inches) Rear Track: 1490 mm (58.7 inches) Weights Curb Weight: Approx. 1400-1500 kg (3086-3307 lbs), depending on transmission and equipment. Wheels And Tires Standard Wheel Size: 15 x 6.5 inch Standard Tire Size: 205/60R15 Bolt Pattern: 5x120 mm 🛡️ Safety Features Ratings NHTSA Rating: Not specifically rated by NHTSA for this era, but built to high European safety standards. Active Features ABS: Available Bosch ABS II system. Traction Control: Optional ASC (Automatic Stability Control) on some models, though less common on the 518i. Passive Features Airbags: Driver airbag standard from approx. 1991, optional earlier. Passenger airbag optional. Seatbelts: Three-point inertia reel seatbelts front and rear. Body Structure: Reinforced safety cell, crumple zones front and rear, reinforced door beams. 💡 Technology Features Infotainment Head Unit: Factory AM/FM/Cassette stereo systems. Optional CD player. Later models had more advanced units. Instrument Cluster: Traditional analog gauges with a comprehensive check control system and an optional On-Board Computer (OBC). Driver Assistance Cruise Control: Standard or optional on most models. Connectivity Diagnostic Port: Early OBD-I diagnostic connector, typically a 20-pin round connector under the hood or behind the glovebox. 🔧 Maintenance Service Intervals Oil Change Interval: Every 10,000-15,000 km (6,000-9,000 miles) or annually, whichever comes...