🏷️ Basic Information Identification Make: BMW Model: 750iL Year: 1991 Codes Chassis Code: E32 👋 Introduction Market Position Positioning: The 1991 BMW 750iL (E32) represented the pinnacle of BMW's luxury sedan offering, positioned as a direct competitor to high-end Mercedes-Benz S-Class and other flagship luxury vehicles. It was designed for discerning buyers prioritizing performance, advanced technology, and unparalleled comfort. Competitive Analysis Competitors: Mercedes-Benz S-Class (W126), Jaguar XJ Series, Lexus LS 400. Key Features Luxury Appointments: Extended wheelbase ('L'), premium leather upholstery, advanced climate control, power-adjustable seating, superior sound insulation. Performance Engineering: The V12 engine offered smooth, powerful acceleration, epitomizing BMW's 'Ultimate Driving Machine' philosophy even in a luxury context. 📋 Manual Details Coverage Areas Coverage: Complete Service and Repair Page Count Page Count: Extensive (specific number not provided in product info, but implied to be comprehensive) Manual Type Type: Workshop Manual / Service Manual / Repair Manual Language Language: English Format Format: Digital (likely PDF, given common availability for this era of manuals) 📖 Manual Coverage Systems Covered Engine: V12 Engine (M70) - including diagnostics, overhaul, and component specifics Transmission: Automatic Transmission (e.g., ZF 4HP-24) - repair, diagnostics, fluid service Brakes: Hydraulic System, ABS, Servicing, Component Replacement Electrical: Full Wiring Diagrams, Component Testing, Diagnostic Procedures for all onboard electronics Suspension: Front and Rear Suspension Systems, Component Replacement, Alignment Specifications Steering: Power Steering System, Components, Troubleshooting Cooling System: Radiator, Water Pump, Thermostat, Fan Clutch, Hoses Fuel System: Fuel Injection System (Motronic), Fuel Pump, Injectors, Fuel Lines Exhaust System: Catalytic Converters, Mufflers, Pipes, Oxygen Sensors Body: Bodywork Repair, Doors, Panels, Glass Replacement, Trim HVAC: Climate Control System, Refrigerant, Components, Diagnostics Interior: Seat Adjustment, Upholstery, Dash Components Procedures Included Scheduled Maintenance: Oil Changes, Filter Replacements, Spark Plug Service, Fluid Checks Troubleshooting: Diagnostic Flowcharts, Symptom-Based Troubleshooting Guides Repair Procedures: Detailed step-by-step instructions for component removal, installation, and overhaul Diagnostics: Engine Management System (Motronic), ABS, and other electronic systems Torque Specifications: Precise torque values for all critical fasteners Special Tools: Identification and usage of BMW-specific tools required for certain repairs Technical Depth Depth: Comprehensive; from basic fluid services to full engine and transmission rebuilds, including complex electrical diagnostics. 📊 Manual Specifications File Format Format: PDF Print Quality Quality: High-resolution, clear text and diagrams suitable for printing. Binding Type Binding: N/A (Digital Format) Paper Type Paper: N/A (Digital Format) Searchability Text Search: Searchable PDF text for quick information retrieval. ⚙️ Engine Specifications Primary Engine Engine Code: M70 Configuration: V12 Displacement: 5.0 Liters (4988 cc) Bore X Stroke: 84.0 mm x 75.0 mm Compression Ratio: 8.8:1 Valve Train: SOHC, 2 valves per cylinder (48 valves total) Performance Horsepower: 300 PS (296 bhp / 221 kW) @ 5200 rpm Torque: 332 lb-ft (450 Nm) @ 3900 rpm Fuel System System: Bosch Motronic M1.2 (Sequential Fuel Injection) Fuel Type: Unleaded Premium Gasoline (91+ Octane) Engine Management ECU: Dual ECUs (one for each bank of cylinders) 🔧 Transmission Standard Type: 4-speed Automatic (ZF 4HP-24) Optional Optional Transmission: Manual Transmission (rarely optioned or available in North America for this model) Features Sport Mode: Yes, typically with selectable 'Sport' and 'Economy' modes. Transmission Fluid Fluid Type: BMW ATF LT 71141 or equivalent Dexron III/Mercon Capacity: Approx. 8.5 liters (8.0 quarts) for a complete fluid change, including torque converter. 📐 Dimensions Exterior Wheelbase: 3026 mm (119.1 inches) Length: 5024 mm (197.8 inches) Width: 1800 mm (70.9 inches) Height: 1400 mm (55.1 inches) Weights Curb Weight: Approx. 1860 kg (4100 lbs) Gross Weight: Approx. 2375 kg (5236 lbs) 🛡️ Safety Features Ratings Crash Test Results: While official NHTSA/IIHS ratings for this specific model year are scarce by modern standards, BMW vehicles of this era were built with substantial safety structures. The E32 chassis was renowned for its rigidity. Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: ASC (Automatic Stability Control) available on some models, though less sophisticated than modern systems. Passive Features Airbags: Driver's airbag standard. Passenger airbag not standard on all early E32 models, but available. Seatbelts: Pre-tensioner seat belts for front occupants. Body Structure: Reinforced safety cell construction. 💡 Technology Features Infotainment Audio System: High-quality premium audio systems, often with cassette player and radio. CD changer was an option. Navigation: Early BMW navigation systems (e.g., BMW Professional Navigation System) were available as an option on later E32 models, though rare on 1991 models. This manual would cover diagnostics if present. Driver Assistance Cruise Control: Standard electronic cruise control. Park Assist: Rear parking sensors were an option on some models, but not widely prevalent. Climate Control System: Dual-zone automatic climate control (IHKA - Integrated Automatic Climate Control) for driver and front passenger, with rear climate controls also often present. Lighting Headlights: Halogen headlights. Fog lights were standard or optional. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500 - 10,000 miles (12,000 - 16,000 km) or annually, depending on driving...