Market Segment:
Full-size luxury sedan, flagship model for BMW.
Competitors:
Mercedes-Benz S-Class (W140), Jaguar XJ, Lexus LS.
Luxury Appointments:
Renowned for its advanced technology, superior comfort, and powerful V12 engine, setting a benchmark for luxury sedans of its era.
Manual Purpose:
To provide comprehensive, authoritative repair and maintenance information for the 1994 BMW 750iL, enabling owners and technicians to maintain optimal performance and longevity.
General Coverage:
Comprehensive service, repair, diagnostics, and maintenance
Specific Systems Covered:
Engine, Drivetrain, Suspension, Steering, Brakes, Electrical System, HVAC, Bodywork, Fuel System, Exhaust System, Emissions Control, Diagnostic Procedures, Troubleshooting
Estimated Page Count:
1000+
Type:
Factory Service Manual / Workshop Manual
Format:
Digital (Likely PDF, may vary by reseller)
Powertrain:
Detailed coverage of the M70 V12 engine, including its dual VANOS, ignition, fuel injection, and cooling systems. Transmission (automatic) overhaul, diagnostics, and fluid specifications.
Chassis And Suspension:
Front and rear suspension components (including EDC - Electronic Damper Control), steering system (hydraulic power steering), wheel alignment specifications, and brake system (ABS, DSC).
Electrical And Electronics:
Extensive coverage of the E38's complex electrical system, including wiring diagrams, ECU diagnostics, lighting, power windows, central locking, climate control electronics, and infotainment components.
Routine Maintenance:
Oil changes, filter replacements, spark plug service, coolant flushes, brake fluid replacement, air filter service, and scheduled inspections.
Repair And Rebuild:
Engine internal component overhaul (pistons, rings, bearings, valves), cylinder head removal and installation, transmission rebuild, suspension component replacement, brake caliper overhaul, and body panel repair.
Diagnostics And Troubleshooting:
Step-by-step diagnostic procedures for common issues, symptom-based troubleshooting guides, and interpretation of diagnostic trouble codes (DTCs) using appropriate BMW diagnostic tools (e.g., GT1, DIS).
Depth:
Expert level, suitable for professional mechanics and experienced DIY enthusiasts. Includes torque specifications, component tolerances, and detailed disassembly/assembly instructions.
Digital Format:
High-resolution, text-searchable PDF with clear diagrams and illustrations. Printable pages.
Illustration Quality:
Sharp, clear, and accurate diagrams, schematics, and photographs.
Digital Binding:
N/A (Digital Format)
Digital Paper Type:
N/A (Digital Format)
Transmission Type:
4-speed Automatic (ZF 4HP24)
Optional Transmission:
N/A (Automatic standard for 750iL)
Gear Ratios:
1st: 2.48, 2nd: 1.48, 3rd: 1.00, 4th: 0.75, Reverse: 2.08
Transmission Fluid:
Dexron III (or equivalent ATF)
NHTSA Ratings:
Not directly rated by NHTSA for this model year in its current format. Likely good frontal crash protection for its time.
Braking System:
Four-wheel Anti-lock Braking System (ABS), ventilated discs front and rear.
Traction Control:
Available Automatic Stability Control (ASC) on some models.
Airbags:
Driver's side airbag; passenger airbag became more common in later E38 variants or as an option.
Seatbelts:
Three-point inertia-reel seatbelts with front pretensioners.
Body Construction:
Reinforced safety cage, crumple zones front and rear.
Audio System:
BMW Professional RDS radio with cassette player, optional CD changer, and premium sound system options (e.g., Harman Kardon).
Navigation:
Optional BMW Business or Professional Navigation System with CRT screen.
Cruise Control:
Standard electronic cruise control.
Parking Assistance:
Optional rear parking sensors (Park Distance Control).
Phone System:
Optional integrated mobile phone system.
Oil Change Interval:
Approximately 7,500 - 10,000 miles or 12 months, based on BMW's Condition Based Service (CBS) or specified intervals.
Transmission Fluid Change:
Recommended every 60,000 miles or as per CBS, although sealed for life on some earlier designs, service is often recommended.
Spark Plug Replacement:
Typically around 60,000 miles for the 12 spark plugs.
Engine Oil:
BMW Longlife-01 (LL-01) or equivalent 5W-30 or 5W-40 synthetic oil. Consult manual for exact grade.
Coolant:
BMW Premium Antifreeze/Coolant (Blue) or equivalent G48 ethylene glycol-based coolant.
Brake Fluid:
DOT 4 High Performance Synthetic Brake Fluid.
Engine M70:
Spark plug fouling (due to coil issues or oil consumption), cooling system leaks (plastic components), idle control issues (IAC valves), and potential oil seal leaks.
E38 Electronics:
Sensor failures (ABS, MAF), dead pixels in instrument cluster displays, headliner sagging, and issues with the central locking or window regulators.
Suspension And Steering:
Wear in control arm bushings, ball joints, and potential leaks from the power steering system or EDC actuators.
Bmw Philosophy:
BMW's long-standing reputation for 'The Ultimate Driving Machine,' emphasizing performance, luxury, and engineering excellence.
E38 Introduction:
The E38 generation of the 7 Series replaced the E32 generation. Introduced in 1994, it brought significant advancements in technology, design, and comfort.
750Il Positioning:
The 750iL represented the pinnacle of the E38 lineup, powered by the potent V12 engine, offering unparalleled refinement and performance.
Production Years:
1994-2001 (E38 generation)
Manufacturing Location:
Dingolfing, Germany
