🏷️ Basic Information

Make:

BMW

Model:

7 Series

Model Variant:

750iL

Production Years Covered:

1988-1994

Chassis Code:

E32

Engine Code Primary:

M70

👋 Introduction

Market Segment:

Full-size Luxury Sedan

Target Audience:

Affluent buyers seeking comfort, performance, and advanced technology for its era.

Key Competitors:

Mercedes-Benz S-Class (W126/W140), Lexus LS 400, Jaguar XJ6

Distinguishing Features:

V12 engine, long wheelbase ('L' designation), advanced electronic systems for the time, luxurious interior appointments.

📋 Manual Details

Market Regions:

Global (specific regional variations may apply)

Estimated Page Count:

1000+

Type:

Full Service and Repair Manual

Origin:

Official BMW Factory Service Manual

Language:

English

Format:

Digital (likely PDF, based on common sales practices)

📖 Manual Coverage

Engine Mechanical:

V12 engine assembly, cylinder heads, pistons, crankshaft, camshafts, lubrication system

Engine Management:

DME (Digital Motor Electronics), ignition system, fuel injection, emission control systems

Transmission:

Automatic transmission (e.g., ZF 4HP24), torque converter, hydraulic control, gear selection

Drivetrain:

Rear-wheel drive system, driveshafts, differential, axle components

Suspension:

Front and rear suspension systems, struts, shock absorbers, control arms, springs, anti-roll bars

Brakes:

Hydraulic brake system, ABS (Anti-lock Braking System), brake fluid, calipers, rotors, pads, lines

Steering:

Power steering system, steering rack, steering column, hydraulic pump

Electrical:

12V electrical system, battery, alternator, starter, lighting, power windows, power seats, climate control electronics

Body And Chassis:

Body construction, chassis components, doors, hood, trunk, interior trim, safety structures

Climate Control:

HVAC system, air conditioning, heating, ventilation, blower motor, refrigerant system

Fuel System:

Fuel tank, fuel pumps, fuel lines, fuel injectors, fuel pressure regulator

Exhaust System:

Exhaust manifolds, catalytic converters, mufflers, exhaust pipes

Routine Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement

Engine Repair:

Engine overhaul, valve adjustments, head gasket replacement, piston and connecting rod service

Transmission Service:

Transmission fluid and filter change, transmission overhaul, solenoid testing and replacement

Brake Repair:

Brake pad and rotor replacement, brake fluid flush, ABS component diagnostics and repair

Suspension And Steering Repair:

Strut and shock replacement, control arm bushing replacement, power steering pump and rack service

Electrical Diagnostics:

Troubleshooting of electrical faults, wiring diagrams, component testing, battery and charging system checks

Bodywork And Trim:

Door panel removal, interior trim component replacement, body panel alignment

Climate Control Service:

AC system recharge, heater core replacement, blower motor service

Troubleshooting Guides:

Diagnostic flowcharts for common issues, fault code interpretation

Diagnostic Procedures:

Detailed diagnostic procedures for engine, transmission, ABS, and other electronic systems, including fault code lookup and troubleshooting trees.

Depth:

Comprehensive, covering basic maintenance to complete engine and transmission rebuilds, including diagnostics and component-level repair.

Special Tools:

Highlights required special tools for specific repair and diagnostic procedures, crucial for the V12 engine and its systems.

📊 Manual Specifications

File Type:

PDF (most likely)

Searchability:

Likely text-searchable PDF

Print Readability:

High (typical for official manuals)

Binding:

N/A (Digital Format)

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Name:

M70 V12

Engine Configuration:

60-degree V12

Displacement:

4.988 L (304.4 cu in)

Bore X Stroke:

84.0 mm x 90.0 mm (3.31 in x 3.54 in)

Horsepower:

295 hp @ 5200 rpm (DIN)

Torque:

317 lb-ft @ 3900 rpm (DIN)

Fuel Delivery:

Multi-point fuel injection (Bosch Motronic DME)

Recommended Fuel:

Premium Unleaded (91+ octane)

Engine Control Unit:

Dual Bosch Motronic DME (one per cylinder bank)

Idle Speed:

Refer to manual for specific RPM ranges for warm idle.

Cooling Type:

Liquid-cooled

Coolant Type:

BMW Blue Antifreeze/Coolant

🔧 Transmission

Type:

4-speed automatic

Transmission Model:

ZF 4HP24

Transmission Features:

Electronic control, Sport mode

Transmission Fluid Type:

Dexron III (or equivalent)

📐 Dimensions

Wheelbase:

3071 mm (120.9 in)

Length:

5024 mm (197.8 in)

Width:

1847 mm (72.7 in)

Height:

1404 mm (55.3 in)

Front Track:

1500 mm (59.1 in)

Rear Track:

1526 mm (60.1 in)

Curb Weight:

approx. 1950 kg (4299 lbs)

Gross Vehicle Weight Rating:

approx. 2400 kg (5291 lbs)

🛡️ Safety Features

Crash Test Data:

Limited specific official ratings from modern agencies, but designed with advanced safety structures for its era.

Active Safety Features:

Anti-lock Braking System (ABS), Traction Control System (ASC - Automatic Stability Control on later models)

Passive Safety Features:

Front airbags, crumple zones, reinforced passenger cell, three-point seatbelts

💡 Technology Features

Audio System:

Premium sound system (e.g., Nakamichi or Bavaria Sound), cassette player, AM/FM radio.

Navigation:

Optional early navigation system (often CRT-based).

Cruise Control:

Standard electronic cruise control.

Phone System:

Optional early car phone integration.

Climate Control Type:

Automatic climate control with dual-zone capability.

Seating:

Power-adjustable front and rear seats, often with memory functions and heating.

🔧 Maintenance

Oil Change Interval:

Typically every 15,000 km (9,300 miles) or 12 months, with condition-based servicing (CBS) prompts on newer systems (manual will detail specific guidance).

Transmission Fluid Interval:

Lifetime fill on some transmissions, but recommended change around 100,000 km (60,000 miles) for longevity.

Coolant Change Interval:

Every 2 years or 30,000 km (18,600 miles)

Engine Oil Type:

SAE 5W-30 or 10W-40 (API SH or higher)

Engine Oil Capacity:

7.5 liters (7.9 US quarts)

Brake Fluid Type:

DOT 4

Power Steering Fluid Type:

BMW Power Steering Fluid or Dexron III

Common Wear Items:

Ignition coils, spark plugs (due to 12 cylinders), cooling system components (hoses, thermostat), ABS sensors, power window regulators, fuel pump relays.

V12 Specific Concerns:

Complexity of the M70 engine requires specialized knowledge for maintenance and repair. Dual DME systems can be challenging to diagnose.

📚 Vehicle History

Bmw Philosophy:

Known for 'The Ultimate Driving Machine', emphasizing performance, engineering, and luxury.

E32 Generation:

The E32 generation represented a significant leap in BMW's flagship sedan design and technology, introducing the V12 engine to a production BMW.

750Il Introduction:

Launched in 1987 (for the 1988 model year), the 750iL was the pinnacle of the E32 range, showcasing BMW's engineering prowess.

E32 Facelift:

The E32 received minor updates, including aesthetic refinements and feature enhancements throughout its production run.

Production Start Year:

1987

Production End Year:

1994

Manufacturing Plant:

Dingolfing, Germany

🏆 Awards & Recognition

Automotive Press Awards:

While specific awards are difficult to pinpoint from this era for individual models, the E32 generation was widely praised for its engineering and luxury, contributing to BMW's reputation as a premium automotive manufacturer.

Reliability Perception:

Perceived as a technologically advanced but potentially complex vehicle to maintain, with higher maintenance costs compared to lesser models.