Positioning:
The BMW 7 Series (E32) represented BMW's flagship luxury sedan during its production run, competing with other high-end European marques. The 740i and 740iL models offered a potent combination of performance and refined luxury.
Competitors:
Mercedes-Benz S-Class (W140), Audi V8 Quattro, Jaguar XJ (XJ40), Lexus LS 400 (UCF10).
Vehicle Features:
Powerful V8 engine, sophisticated ride and handling, luxurious interior appointments, advanced (for its time) technology, available long wheelbase (iL).
Purpose:
To provide comprehensive, step-by-step instructions for servicing, repairing, diagnosing, and maintaining the BMW 740i and 740iL (E32) models, replicating the official documentation used by BMW technicians.
Comprehensive Coverage:
Full service, repair, maintenance, and troubleshooting for the specified BMW models.
Estimated Page Count:
Approx. 1000+ pages (typical for comprehensive workshop manuals of this era).
Type:
Service Repair Workshop Manual
Format:
Digital (likely PDF), searchable text
Powertrain:
Engine (M60B40), transmission (automatic), differential, exhaust system.
Chassis:
Suspension (front and rear), steering, brakes (front and rear), wheels, tires.
Electrical:
Engine management, ignition, fuel injection, lighting, instrumentation, battery, alternator, starter, power accessories, diagnostic systems.
Body:
Body panels, doors, windows, sunroof, interior trim, HVAC, climate control, safety systems (airbags, seatbelts).
Maintenance:
Scheduled maintenance intervals, oil changes, filter replacements, fluid checks and changes, tune-ups, spark plug replacement.
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, fault code interpretation (where applicable), testing procedures for various components.
Repairs:
Engine overhaul, transmission repair/rebuild, brake system repair, suspension component replacement, electrical component repair, bodywork procedures.
Adjustments And Calibrations:
Valve adjustments (if applicable to M60), idle speed adjustments, steering alignment, clutch adjustments (if manual existed, though unlikely for 740i).
Wiring Diagrams:
Detailed electrical wiring diagrams for all vehicle systems, crucial for troubleshooting electrical faults.
Torque Specifications:
Specific torque values for all critical fasteners, essential for proper assembly and preventing damage.
Special Tools:
Identification and usage instructions for any specialized tools required for specific repair procedures.
Depth:
Comprehensive, from basic user maintenance to advanced engine and transmission rebuilds. Suitable for professional mechanics and experienced DIY enthusiasts.
Digital Format:
PDF. High-resolution scans with searchable text for efficient navigation.
Quality:
High-resolution, clear diagrams, and legible text. Professional-grade reproduction.
Binding:
N/A (Digital Format). If printed, typically a sturdy comb or perfect binding for workshop use.
Paper:
N/A (Digital Format). If printed, would be on durable paper suitable for workshop environments.
Engine Type:
4.0L V8 (32-valve DOHC)
Bore X Stroke:
89 mm x 80 mm
Compression Ratio:
10.0:1
Horsepower:
282 hp @ 5800 rpm
Torque:
295 lb-ft @ 4500 rpm
Fuel Delivery:
Bosch Motronic M3.3 electronic fuel injection (EFI)
Fuel Type:
Premium Unleaded Gasoline (91+ octane)
Coolant Type:
BMW Blue Antifreeze/Coolant (or equivalent G48 ethylene glycol based)
Oil Type:
API SH/SJ, ACEA A2/A3, SAE 5W-30 or 5W-40 recommended (check manual for specific BMW approval).
Oil Capacity:
Approx. 7.5 Liters (8 US Quarts)
Transmission Type:
5-speed automatic (ZF 5HP30)
Optional Transmission:
No manual transmission option was officially offered for the 740i/iL in most markets.
Transmission Features:
Electronic control, torque converter lock-up clutch, sport mode (optional on some models).
Transmission Fluid Type:
ZF Lifeguardfluid 5 (or equivalent ATF specification, consult manual for specific BMW approval).
Transmission Fluid Capacity:
Approx. 7.5-8.5 Liters (check dipstick/manual for exact level)
Wheelbase 740I:
Approx. 117.4 inches (2982 mm)
Wheelbase 740Il:
Approx. 120.7 inches (3066 mm)
Length 740I:
Approx. 197.5 inches (5017 mm)
Length 740Il:
Approx. 201.8 inches (5125 mm)
Curb Weight 740I:
Approx. 3900 - 4100 lbs (1770 - 1860 kg)
Curb Weight 740Il:
Approx. 4000 - 4200 lbs (1815 - 1905 kg)
Wheel Size:
Typically 15-inch or 16-inch alloy wheels
Tire Size:
Examples: 225/60HR15, 225/55HR16 (refer to manual for specific options)
Crash Test Data:
As a vehicle from this era, comprehensive electronic crash test data as we know it today is limited. However, BMW vehicles of this period were engineered with robust safety structures.
Active Safety:
Anti-lock Braking System (ABS), optional Traction Control System (ASC).
Passive Safety:
Dual front airbags, reinforced chassis, crumple zones, seatbelt pretensioners.
Infotainment System:
Early E32 models featured basic radio/cassette players. Later models incorporated BMW's Business or Professional CD radios. LCD displays for climate control and trip computer.
Driver Assistance:
Cruise control, parking sensors (rear, on some later models), automatic climate control.
Connectivity Features:
Onboard computer, early cellular phone integration (optional), heated seats, power-adjustable seats with memory.
Oil Change Interval:
Typically every 7,500 - 10,000 miles or 12 months, whichever comes first (dependent on driving conditions and oil used). Consult manual for specific recommendation.
Transmission Fluid Interval:
Recommended service interval for automatic transmission fluid and filter replacement is often around 60,000 - 100,000 miles, or as per manual. BMW's initial 'lifetime fluid' claims have often been revised.
Spark Plug Replacement:
Typically around 60,000 miles for iridium or platinum plugs, but consult manual for exact type and interval.
Brake Fluid Type:
DOT 4 (refer to manual for BMW specifications).
Power Steering Fluid:
BMW Power Steering Fluid (or Pentosin CHF 11S, consult manual).
Cooling System:
Plastic coolant expansion tank can become brittle and crack. Thermostat housing leaks. Water pump issues.
Engine M60:
Nikalium cylinder bore coating can wear (requires careful diagnosis and sometimes specialized repair). VANOS unit can develop issues. Oil pan gasket leaks.
Electrical:
Door wiring harnesses can fray. ABS/ASC sensor failures. LCM (Light Control Module) issues. Pixels in instrument cluster can fail.
Suspension:
Front control arm bushings, rear subframe bushings, strut mounts, and ball joints are common wear items.
HVAC:
Heater control valves can fail. Blower motor resistor issues. Climate control module glitches.
Bmw Heritage:
BMW has a long-standing reputation for engineering sporty luxury vehicles with a focus on driving dynamics, often referred to as the 'Ultimate Driving Machine'.
E32 Generation:
The E32 generation of the 7 Series, produced from 1986 to 1994, was a significant evolution for BMW's flagship. It introduced advanced styling, significantly improved aerodynamics, and a wider range of engine options, including the iconic V8.
E32 Variants:
The E32 lineup included the 730i, 735i, 740i, 740iL, 750i, and 750iL, catering to various market demands for performance and luxury.
Production Years:
1986-1994 (E32 generation).
Manufacturing Location:
Germany (primarily Dingolfing Plant)
Automotive Awards:
While specific awards for the 740i/iL of this exact period might be scarce in direct recall, the E32 generation as a whole was well-regarded for its engineering, luxury, and performance, setting benchmarks for the segment.
Comparative Ratings:
Consistently ranked highly by automotive journalists for its sophisticated driving experience and build quality, often preferred over some competitors for its handling characteristics.
