🏷️ Basic Information Identification Make: BMW Model: 7 Series Model Variant: 740i, 740iL Year: 1991 Codes Chassis Code: E32 Engine Code 740I: M60B40 Engine Code 740Il: M60B40 👋 Introduction Market Position Segment: Full-size luxury sedan Target Audience: Affluent buyers seeking comfort, performance, and advanced technology. Competitive Analysis Key Competitors: Mercedes-Benz S-Class, Lexus LS, Jaguar XJ. Key Features Engine Type: V8 engine (M60B40) delivering smooth power and refined performance. Wheelbase Options: Available in standard (740i) and long wheelbase (740iL) for increased rear legroom. Comfort And Luxury: Premium interior materials, advanced climate control, and sophisticated ride quality. Technology For Era: Features like ABS, on-board computer, and electronic climate control were cutting-edge. Value Proposition For Manual Diy Repair: Empowers owners and independent mechanics to perform complex repairs and maintenance. Cost Savings: Reduces reliance on expensive dealership service for diagnostics and repairs. Restoration Guide: Essential for enthusiasts undertaking restoration projects on the E32 generation. 📋 Manual Details Coverage Areas Full Vehicle Coverage: Yes Engine Systems: Engine mechanical, fuel injection, ignition, cooling, lubrication, exhaust Transmission Systems: Automatic transmission (e.g., 4HP24), shift linkage, transmission control module Drivetrain Systems: Driveshafts, differential, rear axle Suspension Systems: Front suspension (MacPherson struts), rear suspension (multi-link), springs, shock absorbers, bushings, alignment Steering Systems: Power steering system, steering rack, steering column Braking Systems: Front discs, rear discs, ABS (Anti-lock Braking System), brake lines, master cylinder, calipers Electrical Systems: Wiring diagrams, starter, alternator, battery, lighting, fuses, relays, onboard computers (ECU, TCU), instrument cluster Body And Chassis: Body panels, doors, hood, trunk, windows, locks, interior trim, chassis structure, corrosion protection HVAC Systems: Heating, ventilation, and air conditioning (HVAC), climate control system Fuel System: Fuel tank, fuel pump, fuel lines, fuel injectors, fuel pressure regulator Exhaust System: Exhaust manifolds, catalytic converter, mufflers, pipes Page Count Estimated Pages: Hundreds of pages (exact count not specified, but typical for factory manuals of this era) Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: Download PDF 📖 Manual Coverage Systems Covered Powertrain: Comprehensive coverage of M60B40 V8 engine and automatic transmission systems. Chassis: Detailed information on E32 chassis, suspension, steering, and braking systems, including ABS. Electrical: In-depth electrical schematics, component testing, and troubleshooting for all vehicle systems. Body: Body repair procedures, panel replacement, interior components, and exterior trim. Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and changes, tune-ups. Diagnostic Procedures: Troubleshooting guides, fault code interpretation, symptom-based diagnostics. Repair And Rebuild: Step-by-step instructions for component removal, disassembly, repair, assembly, and installation. Special Tools: Identification and usage of specialized tools required for specific procedures. Technical Data: Torque specifications, clearances, fluid capacities, electrical resistance values. Wiring Diagrams: Detailed, often color-coded, wiring schematics for all electrical systems. Technical Depth Depth: Comprehensive, from basic maintenance to major component overhauls and diagnostics. 📊 Manual Specifications File Format Format: PDF Searchability: Likely text-searchable PDF for efficient information retrieval. Print Quality Quality: High resolution, suitable for printing individual pages or the entire manual. Binding Type Physical Format: Not Applicable (PDF Download) Paper Type Physical Format: Not Applicable (PDF Download) ⚙️ Engine Specifications Primary Engine Engine Code: M60B40 Configuration: 4.0L V8 SOHC (later models of M60 were DOHC, but 1991 740i used SOHC initially before the DOHC M62 was phased in for later E38 models, need to confirm exact 1991 spec for M60 - typical M60 is DOHC.) Displacement: 3982 cc (243 cu in) Performance Horsepower: Approx. 282 hp (210 kW) at 5800 rpm (varies slightly by market and specific tuning) Torque: Approx. 295 lb-ft (400 Nm) at 4500 rpm (varies slightly by market and specific tuning) Fuel System Injection Type: Bosch Motronic electronic fuel injection (EFI) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Engine Management ECU: Bosch Motronic ECU Cooling System Type: Pressurized, liquid-cooled Lubrication System Oil Capacity: Approx. 6.5 liters (6.9 US quarts) Recommended Oil Viscosity: SAE 5W-30 or 5W-40 synthetic (refer to manual for specific BMW approval) 🔧 Transmission Standard Type: 4-speed Automatic Transmission Model: ZF 4HP24 Optional Type: Manual transmission was not typically offered on the 740i/iL models of this era in most markets. Features Shift Modes: Likely included comfort/sport modes or electronically controlled shifting. Fluid Specifications Fluid Type: BMW LT-2 or equivalent Dexron III ATF (refer to manual for exact specification) Fluid Capacity Capacity: Approx. 7.5 liters (7.9 US quarts) for a pan drop and fill, higher for a full system flush. 📐 Dimensions Exterior Length 740I: Approx. 198.9 inches (5052 mm) Length 740Il: Approx. 205.6 inches (5222 mm) Width: Approx. 71.7 inches (1821 mm) Height: Approx. 55.6 inches (1412 mm) Weights Curb Weight 740I: Approx. 3858 lbs (1750 kg) Curb Weight 740Il: Approx. 4012 lbs (1820 kg) Wheelbase Wheelbase 740I: Approx. 117.1 inches (2975 mm) Wheelbase 740Il: Approx. 123.3 inches (3132 mm) Wheels And Tires Wheel Bolt Pattern: 5x120 mm Typical Tire Size: 205/65R15 or 225/60R15 (refer to manual for specific options)...
Detailed, often color-coded, wiring schematics for all electrical systems.
Technical Depth
Depth:
Comprehensive, from basic maintenance to major component overhauls and diagnostics.
📊 Manual Specifications
File Format
Format:
PDF
Searchability:
Likely text-searchable PDF for efficient information retrieval.
Print Quality
Quality:
High resolution, suitable for printing individual pages or the entire manual.
Binding Type
Physical Format:
Not Applicable (PDF Download)
Paper Type
Physical Format:
Not Applicable (PDF Download)
⚙️ Engine Specifications
Primary Engine
Engine Code:
M60B40
Configuration:
4.0L V8 SOHC (later models of M60 were DOHC, but 1991 740i used SOHC initially before the DOHC M62 was phased in for later E38 models, need to confirm exact 1991 spec for M60 - typical M60 is DOHC.)
Displacement:
3982 cc (243 cu in)
Performance
Horsepower:
Approx. 282 hp (210 kW) at 5800 rpm (varies slightly by market and specific tuning)
Torque:
Approx. 295 lb-ft (400 Nm) at 4500 rpm (varies slightly by market and specific tuning)
Fuel System
Injection Type:
Bosch Motronic electronic fuel injection (EFI)
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher recommended)
Engine Management
ECU:
Bosch Motronic ECU
Cooling System
Type:
Pressurized, liquid-cooled
Lubrication System
Oil Capacity:
Approx. 6.5 liters (6.9 US quarts)
Recommended Oil Viscosity:
SAE 5W-30 or 5W-40 synthetic (refer to manual for specific BMW approval)
🔧 Transmission
Standard
Type:
4-speed Automatic Transmission
Model:
ZF 4HP24
Optional
Type:
Manual transmission was not typically offered on the 740i/iL models of this era in most markets.
Features
Shift Modes:
Likely included comfort/sport modes or electronically controlled shifting.
Fluid Specifications
Fluid Type:
BMW LT-2 or equivalent Dexron III ATF (refer to manual for exact specification)
Fluid Capacity
Capacity:
Approx. 7.5 liters (7.9 US quarts) for a pan drop and fill, higher for a full system flush.
📐 Dimensions
Exterior
Length 740I:
Approx. 198.9 inches (5052 mm)
Length 740Il:
Approx. 205.6 inches (5222 mm)
Width:
Approx. 71.7 inches (1821 mm)
Height:
Approx. 55.6 inches (1412 mm)
Weights
Curb Weight 740I:
Approx. 3858 lbs (1750 kg)
Curb Weight 740Il:
Approx. 4012 lbs (1820 kg)
Wheelbase
Wheelbase 740I:
Approx. 117.1 inches (2975 mm)
Wheelbase 740Il:
Approx. 123.3 inches (3132 mm)
Wheels And Tires
Wheel Bolt Pattern:
5x120 mm
Typical Tire Size:
205/65R15 or 225/60R15 (refer to manual for specific options)
🛡️ Safety Features
Ratings
NHTSA Crash Test Results:
Data for 1991 models may be limited; focus on features rather than specific ratings.
Active Features
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Some models may have offered traction control (ASC - Automatic Stability Control).
Passive Features
Airbags:
Driver's side airbag was standard; passenger airbag became more common later in the E32 lifecycle or as an option.
Seatbelts:
Three-point seatbelts with pretensioners (driver).
Body Structure:
Reinforced chassis and crumple zones for occupant protection.
💡 Technology Features
Infotainment
Audio System:
Premium sound system, often with cassette player and AM/FM radio. Optional CD changer.
Navigation:
Early forms of navigation systems (e.g., BMW Business Navigation) were available as options.
Driver Assistance
Cruise Control:
Standard electronic cruise control.
Parking Sensors:
Rear parking sensors (Park Distance Control - PDC) were an option.
Connectivity
Phone Integration:
Optional cellular phone integration was available in some configurations.
🔧 Maintenance
Service Intervals
Oil Change:
Every 7,500-10,000 miles (12,000-16,000 km) or annually, using synthetic oil (refer to manual).
Transmission Fluid:
Recommended service at 60,000-100,000 miles (100,000-160,000 km) or as per manual's condition-based service.
Coolant Flush:
Every 2-3 years or as specified.
Spark Plugs:
Typically every 60,000-100,000 miles, depending on plug type.
Fluid Specifications
Engine Oil:
SAE 5W-30 or 5W-40 synthetic (refer to manual for BMW LL-xx approval).
Coolant:
BMW Blue or Green antifreeze (ethylene glycol based) mixed 50/50 with distilled water.
Brake Fluid:
DOT 4 (refer to manual for specific BMW approval).
Known Issues
Cooling System:
Plastic expansion tanks can become brittle and crack; water pump failures. M60 engines can have Nikasil cylinder liner issues in some climates/early production.