🏷️ Basic Information Identification Make: BMW Model: 750iL Year: 1990 Product Name: BMW 750iL 1990 Factory Service Repair Manual Download PDF Chassis Code: E32 Market Segment: Full-Size Luxury Sedan 👋 Introduction Market Position Positioning: Flagship luxury sedan, representing BMW's pinnacle of engineering and comfort in its era. Competitive Analysis Competitors: Mercedes-Benz S-Class, Jaguar XJ, Lexus LS 400, Cadillac DeVille. Key Features Defining Attributes: The V12 engine, opulent interior, long wheelbase (L), advanced (for its time) technology, and refined driving dynamics. Manual Value Proposition Value For Owner: Essential for maintaining the complex and sophisticated systems of the 750iL, enabling DIY repairs and informed servicing. 📋 Manual Details Coverage Areas Systems Covered: Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical System, Climate Control, Fuel System, Exhaust System, Body, Chassis, Interior, Diagnostics Page Count Estimated Pages: Hundreds (Specific count not provided, but implied to be comprehensive) Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Mechanical: V12 Engine (M70), cylinder head, block, pistons, crankshaft, camshafts, timing, lubrication, cooling Engine Management: Bosch Motronic M1.2 electronic fuel injection and ignition, sensor diagnostics, actuator testing Transmission Mechanical: 4-speed Automatic Transmission (Getrag 4HP22), torque converter, valve body, gear sets, clutches, seals Transmission Electronic: Electronic transmission control unit (EGS), shift solenoids, speed sensors, diagnostic codes Drivetrain: Rear-wheel drive, driveshaft, differential, axles, wheel bearings Suspension Front: MacPherson struts, control arms, ball joints, anti-roll bar, springs, shock absorbers Suspension Rear: Multi-link independent suspension, trailing arms, control arms, springs, shock absorbers, self-leveling suspension (optional, check for details) Steering: Hydraulic power steering, steering rack, steering column, power steering pump, fluid specifications Brakes Front: Ventilated Disc Brakes, caliper specifications, pad replacement, rotor specifications, ABS (Anti-lock Braking System) Brakes Rear: Disc Brakes, caliper specifications, pad replacement, rotor specifications, ABS (Anti-lock Braking System) Electrical System Lighting: Headlights, taillights, interior lights, bulb specifications, wiring diagrams Electrical System Charging: Alternator, voltage regulator, battery specifications, charging system diagnostics Electrical System Starting: Starter motor, ignition switch, starter solenoid, battery draw testing Electrical System Accessories: Power windows, power seats, power mirrors, central locking, sunroof, cruise control, heated seats Climate Control: HVAC system, blower motor, air conditioning (R-12 refrigerant), heating system, cabin filter, control panel diagnostics Fuel System: Fuel tank, fuel pump, fuel filter, fuel injectors, fuel pressure testing, fuel lines Exhaust System: Exhaust manifolds, catalytic converters, mufflers, exhaust pipes, hangers, emissions control systems Body Exterior: Body panels, doors, fenders, hood, trunk lid, bumpers, glass replacement, seals Body Interior: Dashboard, seats, door panels, headliner, carpets, trim components, seat belt maintenance Diagnostics: On-Board Diagnostics (OBD) for the era, fault codes, diagnostic connector location, troubleshooting flowcharts Procedures Included Maintenance Tasks: Oil changes, filter replacements, spark plug replacement, coolant flush, brake fluid flush, transmission fluid service, differential fluid change Repair Procedures: Engine component removal and installation, transmission overhaul, suspension component replacement, brake caliper overhaul, starter/alternator replacement, fuel pump replacement Troubleshooting: System-specific diagnostic trees, common problem identification, symptom-based troubleshooting guides Specifications: Torque specifications for all fasteners, electrical system schematics, vacuum hose routing diagrams, alignment specifications Special Tools: List and description of required special tools for specific repair procedures (e.g., engine timing tools, suspension alignment tools) Technical Depth Depth: Comprehensive, covering routine maintenance, complex repairs, component overhauls, and advanced diagnostics 📊 Manual Specifications File Format Format: PDF Print Quality Printability: High-quality, printable pages Binding Type Binding Type: N/A (Downloadable PDF) Paper Type Paper Type: N/A (Digital Format) Searchability Search Functionality: Searchable text within the PDF document Digital Features Hyperlinks: Likely includes internal links for navigation (typical for professional PDFs) ⚙️ Engine Specifications Primary Engine Engine Code: M70B50 Engine Type: SOHC V12 Displacement: 5.0 Liters (4988 cc) Performance Horsepower: 296 hp @ 5200 rpm Torque: 332 lb-ft @ 4100 rpm Fuel System Fuel Delivery: Bosch Motronic M1.2 Electronic Fuel Injection (EFI) with two ECUs, one for each cylinder bank Fuel Type Fuel Requirement: Premium Unleaded Gasoline (91+ octane) Cooling System Coolant Type: BMW Blue Antifreeze (G48 or equivalent) mixed 50/50 with distilled water Lubrication System Oil Capacity With Filter: 7.5 Liters (7.9 Quarts) Recommended Oil Viscosity: 15W-40 or 10W-40 (refer to owner's manual for climate specifics) 🔧 Transmission Standard Type: 4-speed Automatic (Getrag 4HP22 EH) Optional Optional Transmission: N/A (Automatic only for 750iL) Features Electronic Control: Electronic Gearbox Control (EGS) for optimized shift points and smoother operation Fluid Capacity Transmission Fluid Capacity: Approximately 10 Liters (10.6 Quarts) for complete fill (refer to manual for specific procedure) Fluid Specification Transmission Fluid Type: Dexron III or equivalent (BMW ATF LT 71141 is a common modern substitute, but verify with manual) 📐 Dimensions Exterior Wheelbase: 3028 mm (119.2 inches) Length: 5124 mm (201.7 inches) Width: 1800 mm (70.9 inches) Height: 1420 mm (55.9 inches) Weights Curb Weight: Approximately 1950 kg (4300 lbs) Gross Vehicle Weight Rating: Approx. 2480 kg (5467 lbs) Cargo Trunk Volume: Approximately 500 liters (17.6 cubic feet)...