Segment:
Full-size luxury sedan, competing with flagship models from Mercedes-Benz, Jaguar, and Cadillac.
Target Audience:
Affluent consumers seeking sophisticated engineering, performance, and comfort.
Key Competitors:
Mercedes-Benz S-Class (W126/W140), Jaguar XJ, Cadillac Fleetwood Brougham.
V12 Engine:
The distinctive 5.0-liter V12 engine was a major selling point, offering smooth power delivery and refinement.
Long Wheelbase:
The 'L' designation signifies the long-wheelbase version, providing enhanced rear-seat legroom and luxury.
Advanced Technology:
For its era, the 750iL incorporated advanced features like automatic climate control, electronic suspension (optional), and sophisticated engine management.
Engine:
M70 V12 engine, including lubrication, cooling, fuel injection (Bosch Motronic), ignition, exhaust systems, and engine management.
Transmission:
4-speed automatic transmission (e.g., 4HP24), including hydraulic and electronic control, fluid, and general maintenance.
Drivetrain:
Rear-wheel drive system, including driveshaft, differential, and axles.
Suspension:
Front and rear suspension systems, including shock absorbers, springs, control arms, bushings, and alignment procedures.
Steering:
Power steering system, steering rack, and linkages.
Brakes:
Front and rear disc brakes, ABS (Anti-lock Braking System), hydraulic system, and components.
Electrical System:
Comprehensive coverage of the vehicle's electrical system, including battery, charging system, starting system, lighting, fuses, relays, and wiring diagrams.
Climate Control:
Automatic climate control system, HVAC components, refrigerant, and troubleshooting.
Bodywork:
Exterior body panels, doors, hoods, trunk, glass, seals, and collision repair information.
Interior:
Interior trim, seats, dashboard, and associated components.
Diagnostics:
Troubleshooting guides and diagnostic procedures for various systems.
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, and general inspection procedures.
Component Removal Installation:
Detailed step-by-step instructions for removing and installing major components like engine parts, transmission, suspension components, brake calipers, etc.
Troubleshooting:
Systematic diagnostic approaches for identifying and resolving common and uncommon vehicle issues.
Wiring Diagrams:
Detailed electrical wiring schematics for all vehicle systems, crucial for electrical diagnostics and repairs.
Torque Specifications:
Specific torque values for critical fasteners throughout the vehicle.
Special Tools:
Identification and usage of special tools required for specific repair procedures.
Depth Level:
Comprehensive, covering routine maintenance to full engine and transmission overhauls.
Diagnostic Capabilities:
Advanced diagnostic procedures, including potential fault codes and their interpretation (though without specific OBD-II scan tool data, focus is on system-level analysis).
Repair Methodology:
Detailed, step-by-step repair procedures with illustrations and specifications.
Wheelbase:
Approx. 117.4 inches (2982 mm)
Length:
Approx. 200.0 inches (5080 mm)
Width:
Approx. 70.2 inches (1783 mm)
Height:
Approx. 56.5 inches (1435 mm)
Curb Weight:
Approx. 4400-4600 lbs (2000-2100 kg), depending on equipment.
Gross Vehicle Weight Rating:
Details provided in manual.
Crash Test Data:
While formal NHTSA/IIHS ratings from this era are less comprehensive than today, the E32 chassis was engineered with a strong safety cage and crumple zones. Manual details passive safety features.
ABS:
Standard Anti-lock Braking System (ABS).
Traction Control:
ASC (Automatic Stability Control) available on later models or as an option.
Airbags:
Driver's airbag standard from 1990 onwards, passenger airbag optional/standard on later models.
Seatbelts:
Pre-tensioning seatbelts for front occupants.
Chassis Design:
Reinforced passenger cell and energy-absorbing structures.
Audio System:
Premium sound systems were available, often with cassette decks and integrated radio. CD changers were optional.
Navigation:
Early GPS navigation systems were available as an option on later models, typically integrated into the dashboard display.
Cruise Control:
Standard electronic cruise control.
Parking Sensors:
Early rear parking assist sensors (Park Distance Control) became available towards the end of the E32's run.
Phone Integration:
Optional integrated car phones were available in some markets, representing early mobile communication technology in vehicles.
Oil Change Interval:
Typically every 7,500 - 10,000 miles or annually, as specified by the manual and driving conditions.
Major Service:
Detailed intervals for spark plug replacement (e.g., 60,000 miles), coolant flush, brake fluid service, and transmission service are crucial and found in the manual.
Engine Oil:
Refer to manual for specific viscosity grade (e.g., 5W-30 or 10W-40 depending on climate) and API service classification. Capacity approx. 8.5 liters.
Coolant:
BMW Blue Coolant (G48 ethylene glycol based) or equivalent. Capacity approx. 15 liters.
Power Steering Fluid:
BMW specifies specific hydraulic fluid; consult manual. ATF Dexron III often acceptable for older systems. Capacity approx. 1.5 liters.
Engine Cooling:
Potential for coolant leaks from plastic components in the cooling system (thermostat housing, expansion tank). V12 requires meticulous cooling system maintenance.
Electrical:
Aging wiring harnesses, particularly in engine bay, can degrade. Issues with sensors, ignition coils, and module failures are possible.
Fuel System:
Potential issues with fuel injectors (two per cylinder), fuel pumps, and the Motronic control unit. O-rings can degrade.
Transmission:
ZF automatic transmissions are generally robust, but seals and valve body issues can arise with age and mileage.
Suspension Bushings:
Worn control arm bushings and other suspension components are common due to age and mileage, affecting handling and comfort.
ABS Sensors:
ABS wheel speed sensors can fail over time.
Bmw Philosophy:
BMW's legacy of engineering excellence, performance (the 'Ultimate Driving Machine'), and luxury craftsmanship.
E32 Generation:
The E32 generation (1986-1994) succeeded the E23 7 Series and was a significant step forward in technology and design. The 750iL represented the pinnacle of the lineup.
V12 Introduction:
The M70 V12 engine was first introduced in the E32 750i and 750iL, showcasing BMW's engineering prowess at the time.
Manufacturing Location:
Dingolfing, Germany.
Sales Era:
The E32 was produced during a period of increasing competition in the luxury sedan market, with BMW aiming to offer a more driver-oriented alternative to its rivals.
