🏷️ Basic Information

Make:

BMW

Model:

750iL

Model Code:

E32

Model Variant:

750iL

Generation:

E32

Generation Years:

1986-1994

👋 Introduction

Market Position:

Flagship luxury sedan, competing with Mercedes-Benz S-Class and Lexus LS

Competitive Vehicles:

Mercedes-Benz W126/W140 S-Class, Lexus LS 400, Jaguar XJ

Key Features:

V12 engine, long wheelbase, opulent interior, advanced technology for its era, refined ride quality

Manual Value Proposition:

Provides in-depth, authoritative guidance essential for maintaining and repairing the complex V12 engine and advanced systems of the 750iL

📋 Manual Details

Covered Years:

1988, 1989, 1990, 1991, 1992, 1993, 1994

Model Variants Covered:

750iL

Estimated Page Count:

1500+

Manual Type:

Workshop Service Repair Manual

Original Source:

Factory BMW Service Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine Systems:

Engine mechanical, V12 engine specifics, fuel injection (Bosch Motronic), ignition system, cooling system, lubrication system, exhaust system, emissions control

Transmission Systems:

Automatic transmission (4HP-35), transmission control, fluid and filter changes, removal and installation

Chassis Systems:

Suspension (front and rear), steering system (hydraulic power steering), braking system (ABS, disc brakes front and rear), driveline, wheels and tires

Electrical Systems:

Complete wiring diagrams, lighting system, starting and charging system, battery, fuses and relays, instrument cluster, diagnostic connectors, power windows, seats, mirrors, climate control electronics, body control modules

Body And Interior:

Body panels, doors, hood, trunk, bumpers, interior trim, seats, headliner, sound insulation, body repair, rust prevention

Comfort Systems:

Heated seats, automatic climate control (ECC), power seats, sunroof operation, central locking

Maintenance Procedures:

Oil change, filter replacement, fluid checks and top-offs, spark plug replacement, belt inspection and replacement, brake pad replacement, tire rotation

Diagnostic Procedures:

Troubleshooting guides for common issues, fault code interpretation (OBD-I era diagnostics), system testing procedures, electrical troubleshooting using wiring diagrams

Repair Procedures:

Detailed step-by-step repair instructions for all major components, engine overhauls, transmission repairs, suspension component replacement, brake caliper overhaul, electrical component repair

Technical Specifications:

Torque specifications for all fasteners, engine specifications, chassis geometry, electrical component ratings, fluid capacities and types

Body Repair Procedures:

Panel replacement, rust repair, door and window sealing, alignment procedures

Electrical Troubleshooting Methods:

Step-by-step wiring harness tracing, component testing, voltage and resistance measurements

Depth Of Coverage:

Comprehensive from basic maintenance to complete engine and transmission rebuilds, in-depth electrical diagnostics, and bodywork repair

Special Tools Requirement:

Detailed listing and usage instructions for specialized BMW tools required for certain repairs (e.g., engine timing, hydraulic systems)

📊 Manual Specifications

File Format:

Searchable PDF

Print Quality:

High-resolution scans, clear text and diagrams

Binding Type:

N/A (Digital)

Paper Type:

N/A (Digital)

⚙️ Engine Specifications

Engine Code:

M70

Engine Configuration:

60-degree V12

Engine Displacement:

4.988 Liters (304.4 cu in)

Horsepower:

296 hp @ 5200 rpm

Torque:

332 lb-ft @ 3900 rpm

Fuel System Type:

Sequential Electronic Fuel Injection (Bosch Motronic M1.2)

Fuel Type:

Premium Unleaded Gasoline (91+ octane)

Engine Features:

Dual overhead camshafts (DOHC), 2 valves per cylinder, individual throttle bodies for each bank, separate engine management for each cylinder bank

Engine Management:

Dual Motronic control units, one for each cylinder bank

🔧 Transmission

Standard Transmission:

4-speed Automatic (ZF 4HP-35)

Transmission Features:

Electronic control, sport and comfort modes

📐 Dimensions

Wheelbase:

117.4 inches (2982 mm)

Length:

199.3 inches (5062 mm)

Width:

71.7 inches (1821 mm)

Height:

55.7 inches (1415 mm)

Curb Weight:

4,365 lbs (1980 kg)

Interior Volume:

Ample for a luxury sedan, particularly for rear passengers due to long wheelbase

🛡️ Safety Features

Safety Ratings:

NHTSA ratings not readily available for this era; focus on era-appropriate passive safety features

Active Safety Features:

Anti-lock Braking System (ABS), power-assisted steering

Passive Safety Features:

Frontal airbags (driver and passenger), crumple zones, reinforced safety cage, three-point seat belts with pretensioners

💡 Technology Features

Infotainment System:

Cassette player with radio, optional CD changer, analog display for climate control and audio

Driver Assistance Features:

Cruise control, automatic climate control, power adjustable seats with memory

Connectivity Features:

Analog phone system (optional, likely obsolete)

Onboard Diagnostics:

OBD-I compliant, with diagnostic connectors for engine and ABS/transmission systems

🔧 Maintenance

Oil Change Interval:

Every 7,500-10,000 miles or 12 months (check manual for specific recommendations)

Spark Plug Replacement Interval:

Approx. 30,000 miles (refer to manual for specific plug type and interval)

Transmission Service Interval:

Fluid and filter change recommended every 30,000-50,000 miles (crucial for longevity)

Engine Oil Specification:

SAE 5W-30 or 5W-40 synthetic (API SG or higher)

Coolant Specification:

BMW Blue Antifreeze/Coolant (ethylene glycol based)

Transmission Fluid Specification:

ZF LifeguardFluid 5 (or equivalent approved ATF)

Brake Fluid Specification:

DOT 4

Power Steering Fluid Specification:

ATF Dexron II (check manual for exact specification)

Common Issues:

Ignition coil failure, cooling system leaks (hose degradation, water pump), vacuum leaks, fuel pump issues, transmission control module faults, ABS sensor failures, idle control valve problems, electronic climate control malfunctions, early signs of rust on specific areas

Manual Benefit For Issues:

Provides diagnostic procedures and repair steps to address these common issues effectively.

📚 Vehicle History

Brand Heritage:

BMW, Bayerische Motoren Werke AG, founded in 1916, renowned for performance, engineering, and luxury automobiles

E32 Generation Introduction:

The E32 7 Series replaced the E23 7 Series and introduced a more aerodynamic design, improved comfort, and advanced technology. The 750iL variant debuted in 1987 and became the flagship model.

Production Years:

1986-1994

Manufacturing Location:

Dingolfing, Germany

🏆 Awards & Recognition

Automotive Awards:

While specific awards are not widely documented for the 1988-1994 750iL, it was consistently recognized for its V12 engine smoothness and advanced luxury features by automotive journalists and publications of its era.