🏷️ Basic Information Identification Make: BMW Model: 5 Series Chassis Code: E34 Model Variant: 518i Product Name: BMW 5 Series (E34) 518i 1990-1991 Service Repair Manual 👋 Introduction Market Position Positioning: Entry-level model in the E34 5 Series lineup, offering BMW's renowned driving dynamics and build quality at a more accessible price point. Competitive Analysis Competitors: Mercedes-Benz W124 E-Class, Audi 100/200, Volvo 240/740 series, Jaguar XJ6 (XJ40). Key Features Distinctive Features: Excellent chassis balance, driver-focused interior, strong build quality, reliable M40 engine, rear-wheel drive dynamics. Target Audience Audience: Enthusiasts seeking a reliable, comfortable, and engaging executive sedan with the characteristic BMW driving experience. 📋 Manual Details Coverage Areas Engine Coverage: M40B18 engine (1.8L inline-4) Transmission Coverage: Manual (Getrag 260) and Automatic (ZF 4HP22 EH) transmissions Chassis Systems Coverage: Suspension, steering, brakes, exhaust Electrical Systems Coverage: Wiring diagrams, lighting, ignition, starter, charging system, ECUs (DME) Body And Interior Coverage: Body panels, doors, windows, seats, HVAC, fuel system, cooling system Page Count Estimated Page Count: Likely 500-800+ pages (typical for comprehensive service manuals of this era) Manual Type Type: Service and Repair Manual Language Language: English Format Format: Digital PDF (Instant Download) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, pistons, crankshaft, camshaft, timing, lubrication, cooling Engine Management: DME (Digital Motor Electronics) control, fuel injection (Bosch Motronic), ignition timing, sensors, actuators Transmission Mechanical: Clutch, gearbox components, differential, driveshafts Transmission Automatic: Automatic gearbox operation, hydraulic control, torque converter, shift solenoids Brake System: Front and rear brake calipers, rotors, pads, hydraulic lines, ABS (Anti-lock Braking System) if equipped Steering System: Steering rack, power steering pump, tie rods, steering column Suspension System: Front and rear struts, springs, control arms, bushings, sway bars Fuel System: Fuel tank, fuel pump, fuel lines, fuel filter, fuel injectors Exhaust System: Exhaust manifolds, catalytic converter, mufflers, pipes Cooling System: Radiator, water pump, thermostat, coolant hoses, fan HVAC System: Heater core, blower motor, climate control unit, refrigerant system (if applicable) Body And Trim: Door mechanisms, window regulators, exterior trim, interior panels Lighting System: Headlights, taillights, interior lights, fog lights Ignition System: Spark plugs, ignition coils, distributor (early models), ignition control modules Procedures Included Maintenance Procedures: Oil changes, filter replacements, spark plug replacement, coolant flushes, brake fluid changes, belt inspection/replacement Troubleshooting Guides: Diagnostic trouble codes (DTCs), symptom-based troubleshooting for engine, electrical, and mechanical issues Repair Procedures: Engine component removal/installation (e.g., cylinder head, oil pan), transmission overhaul, brake caliper rebuild, suspension component replacement Adjustment Procedures: Valve clearance adjustment, idle speed adjustment, brake pad adjustment Wiring Diagram Interpretation: Detailed schematics for all electrical circuits Technical Depth Depth: Comprehensive; covers routine maintenance to major component overhaul and diagnostics. Diagnostic Capabilities: Detailed procedures for using diagnostic tools (e.g., scan tools for DME) and interpreting sensor data. Torque Specifications: Specific torque values for all critical fasteners. Clearances And Tolerances: Engine internal clearances, brake shoe adjustments, etc. 📊 Manual Specifications File Format Format: PDF Searchability: Likely text-searchable due to digital nature. Print Quality Quality: High resolution scans suitable for printing. Binding Type Binding: Not applicable (Digital PDF) Paper Type Paper: Not applicable (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code: M40B18 Engine Type: Inline 4-cylinder, 8-valve SOHC Displacement: 1796 cc (1.8 Liters) Bore X Stroke: 84 mm x 81 mm Performance Horsepower Hp: 113 hp @ 5500 rpm Torque Lb-Ft: 164 Nm (121 lb-ft) @ 4300 rpm Fuel System Fuel Delivery: Bosch Motronic M1.3 Fuel Injection Fuel Type: Unleaded gasoline (95 RON recommended) Ignition System Ignition Type: Distributorless ignition (DIS) or Distributor-based ignition system depending on exact build date/market Cooling System Cooling Type: Water-cooled Lubrication System Oil Capacity Liters: 4.0 liters (with filter) Recommended Oil Viscosity: SAE 10W-40 or 15W-40 (API SG or higher) 🔧 Transmission Standard Transmission Type: Getrag 260 5-speed Manual Optional Transmission Type: ZF 4HP22 EH 4-speed Automatic Features Clutch Type: Hydraulically operated single dry plate clutch Automatic Features: Electronic control (EH), sport/economy modes (on some variants) Fluid Specifications Manual Transmission Fluid: API GL-4 SAE 75W-90 or SAE 80W-90 gear oil Automatic Transmission Fluid: ATF Dexron III 📐 Dimensions Exterior Length Mm: 4734 mm (186.4 in) Width Mm: 1751 mm (68.9 in) Height Mm: 1413 mm (55.6 in) Wheelbase Mm: 2760 mm (108.7 in) Weights Curb Weight Kg: ~1450 kg (3197 lbs) - varies by equipment Gross Vehicle Weight Rating Kg: Approx. 1900-2000 kg 🛡️ Safety Features Ratings NHTSA Ratings: Not specifically rated by NHTSA for this model year, but E34 chassis generally considered robust. Active Features ABS: Optional Anti-lock Braking System (ABS) on some models. Passive Features Airbags: Driver's side airbag available as an option; passenger airbag generally not available for early E34 models. Seatbelts: 3-point inertia-reel seatbelts front and rear. Body Structure: Reinforced safety cage, crumple zones. 💡 Technology Features Infotainment Audio System: Factory fitted AM/FM radio with cassette player, optional CD changer. Display: Basic LED/LCD displays for climate...