🏷️ Basic Information Identification Make: BMW Model: 750iL Model Code: E32 Year: 1990 Generation Generation Name: E32 Generation Years: 1986-1994 👋 Introduction Market Position Segment: Full-size Luxury Sedan Bmw Philosophy: Ultimate Driving Machine, even in the luxury segment Competitive Analysis Key Competitors: Mercedes-Benz S-Class, Jaguar XJ, Lexus LS400 Key Features V12 Engine: Smoothness, power, and refinement of the M70 V12 Long Wheelbase: Enhanced rear passenger space and comfort Advanced Technology: For its era, incorporating features like Electronic Damper Control (EDC) and early driver assistance systems. 📋 Manual Details Coverage Areas Primary Coverage: 1990 BMW 750iL Secondary Coverage: Potentially related E32 models with similar components Page Count Estimated Page Count: Extensive (typical for comprehensive service manuals, likely 1000+ pages in digital format) Manual Type Type: Service and Repair Manual Software Language Language: English (Standard for official BMW service documentation) Format Format: Software (likely digital, searchable PDF or proprietary application) 📖 Manual Coverage Systems Covered Engine: V12 engine (M70B50), including diagnostics, repair, and overhaul Powertrain: Transmission (automatic), differential, driveshaft, axles Chassis: Suspension (front and rear), steering, brakes (hydraulic, ABS), wheels, tires Electrical: Engine management (DME), ignition, lighting, instrumentation, power accessories, comfort electronics, wiring diagrams Body: Exterior body panels, interior trim, doors, windows, sunroof, climate control system Comfort Features: Seats (power, memory), climate control, sound system, cruise control Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnostics Repair: Component removal and installation, engine and transmission rebuild, suspension and brake system repair, electrical system repair Adjustments: Valve adjustments (if applicable), shift linkage adjustments, idle speed adjustments Specifications: Torque specifications, clearances, fluid capacities, pressure tests Technical Depth Depth: Comprehensive (covers routine maintenance to major overhauls and advanced diagnostics) Audience: Professional technicians and advanced DIY enthusiasts 📊 Manual Specifications File Format Digital Format: Likely searchable PDF or proprietary executable, allowing for quick navigation and keyword searches Print Quality Digital Quality: High resolution images, clear diagrams, and readable text Binding Type Binding: Not applicable for software, but implies digital binding/organization Paper Type Paper Quality: Not applicable for software, but implies a digital equivalent of high-quality technical documentation paper ⚙️ Engine Specifications Primary Engine Engine Code: M70B50 Engine Type: SOHC V12 Displacement: 5.0 liters (4988 cc) Bore X Stroke: 84.0 mm x 75.0 mm Compression Ratio: 8.8:1 Performance Horsepower: 296 hp @ 5200 rpm Torque: 317 lb-ft @ 4100 rpm Fuel System Fuel Delivery: Bosch Motronic M1.2 (Sequential Multi-Point Fuel Injection) Fuel Type: Premium Unleaded Gasoline Cooling System Coolant Capacity: Approx. 12.5 liters (13.2 US quarts) Lubrication Oil Capacity: Approx. 7.5 liters (7.9 US quarts) with filter Recommended Oil Viscosity: SAE 15W-40 or 20W-50 (depending on climate, consult manual for specifics) Ignition System Ignition Type: Distributorless ignition with two spark plugs per cylinder 🔧 Transmission Standard Transmission Type: 4-speed Automatic Transmission Model: ZF 4HP24 Optional Optional Transmission: None offered Features Transmission Features: Sport mode, Lock-up torque converter Fluid Specifications Transmission Fluid Type: Dexron III ATF or equivalent (refer to manual for exact BMW specification) Fluid Capacity Transmission Fluid Capacity: Approx. 4.0 liters (4.2 US quarts) for drain and refill 📐 Dimensions Exterior Length: 5024 mm (197.8 inches) Width: 1800 mm (70.9 inches) Height: 1410 mm (55.5 inches) Wheelbase: 2918 mm (114.9 inches) Front Track: 1527 mm (60.1 inches) Rear Track: 1565 mm (61.6 inches) Weights Curb Weight: Approx. 1930 kg (4255 lbs) Gross Vehicle Weight Rating: Approx. 2400 kg (5291 lbs) Wheels Tires Standard Wheel Size: 15 x 7.0 inches (Alloy) Standard Tire Size: 225/60VR15 Bolt Pattern: 5 x 120 mm Center Bore: 72.5 mm 🛡️ Safety Features Ratings NHTSA Ratings: N/A (No standardized testing for this era) Active Features ABS: Standard (Bosch ABS II) Traction Control: Optional (ASC - Automatic Stability Control) Passive Features Airbags: Driver's airbag standard, passenger airbag optional/later addition Seatbelts: 3-point inertia-reel seatbelts front and rear Chassis Design: Reinforced safety cell, crumple zones 💡 Technology Features Infotainment Audio System: BMW Professional RDS stereo system (often with cassette player), optional CD changer. Navigation: Optional early-generation BMW navigation system (often a CRT screen in the dash). Driver Assistance Cruise Control: Standard electronic cruise control. Parking Assistance: Optional rear parking sensors. Connectivity Phone Integration: Optional factory installed car phone. Comfort Tech Climate Control: Dual-zone automatic climate control. Seat Features: Power-adjustable front seats with memory function, heated front and rear seats. 🔧 Maintenance Service Intervals Oil Change Interval: Approximately 10,000-15,000 miles or 12-24 months (refer to manual for specific BMW recommendations and oil type) Transmission Fluid Change: Typically every 30,000-50,000 miles (consult manual for exact interval and procedure) Spark Plug Replacement: 12 spark plugs, typically replaced every 60,000-100,000 miles (check manual for specific plug type and interval) Coolant Flush: Every 2-3 years or 30,000-50,000 miles Fluid Specifications Brake Fluid Type: DOT 3 or DOT 4 (refer to manual for specific BMW recommendation) Power Steering Fluid: BMW CHF 11S...
BMW Professional RDS stereo system (often with cassette player), optional CD changer.
Navigation:
Optional early-generation BMW navigation system (often a CRT screen in the dash).
Driver Assistance
Cruise Control:
Standard electronic cruise control.
Parking Assistance:
Optional rear parking sensors.
Connectivity
Phone Integration:
Optional factory installed car phone.
Comfort Tech
Climate Control:
Dual-zone automatic climate control.
Seat Features:
Power-adjustable front seats with memory function, heated front and rear seats.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Approximately 10,000-15,000 miles or 12-24 months (refer to manual for specific BMW recommendations and oil type)
Transmission Fluid Change:
Typically every 30,000-50,000 miles (consult manual for exact interval and procedure)
Spark Plug Replacement:
12 spark plugs, typically replaced every 60,000-100,000 miles (check manual for specific plug type and interval)
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles
Fluid Specifications
Brake Fluid Type:
DOT 3 or DOT 4 (refer to manual for specific BMW recommendation)
Power Steering Fluid:
BMW CHF 11S or equivalent (refer to manual)
Known Issues
Engine M70:
Coil pack failure, spark plug wire issues, vacuum leaks, coolant leaks (especially in the V), idle control issues, crank position sensor failures.
Electronics:
Climate control module failures, dashboard pixelation, door lock actuators, heated seat issues.
Suspension:
Wear in control arm bushings, shock absorber leaks, self-leveling rear suspension issues (if equipped).
Fuel System:
Fuel pump failures, clogged injectors.
📚 Vehicle History
Brand Heritage
Bmw Legacy:
Known for performance, engineering excellence, and sporty luxury vehicles.
Model Evolution
E32 Introduction:
Launched in 1986 as the successor to the E23 7 Series, representing BMW's push into the flagship luxury sedan market.
V12 Introduction:
The 750iL, introduced in 1987, was BMW's first production V12 engine, intended to compete directly with Mercedes-Benz's V12 offerings.
Facelift:
The 1990 model year typically falls within the pre-facelift E32 (launched 1986-1991) or early facelift (1992 onwards), depending on production date. This manual is for the initial 1990 configuration.
Production
Production Period:
1986-1994
Manufacturing Location:
Germany
🏆 Awards & Recognition
Recognitions
Car And Driver:
Often featured on Car and Driver's '10Best' lists in its segment for its era, though specific awards for the 1990 model year need verification.
Ratings
Sales Performance:
Competitively strong within the luxury segment, though production volumes were lower than mass-market sedans.
Certifications
Engineering Quality:
Recognized for its robust engineering and build quality, characteristic of BMW's premium offerings.