The 1997 BMW 540i, part of the E39 generation, represents a significant entry in the executive sedan segment, renowned for its potent 4.4-liter V8 engine delivering 282 horsepower and 317 lb-ft of torque. This model distinguished itself with a rear-wheel-drive bias, a sophisticated multi-link suspension system, and the option of a 5-speed Steptronic automatic transmission, offering a compelling blend of performance, luxury, and driving dynamics. Building on BMW's heritage of engineering excellence, the 540i was designed to compete with premium offerings from other manufacturers, providing a luxurious interior and advanced features for its time. This comprehensive factory service and repair manual provides complete, in-depth information for the 1997 BMW 540i (E39 chassis). It covers all essential systems, including the V8 M62B44 engine, the 5-speed Steptronic automatic transmission, drivetrain, suspension, brakes, steering, and the complete electrical system. The manual details scheduled maintenance, repair procedures, diagnostic troubleshooting, disassembly and assembly instructions, and includes vital technical specifications and wiring diagrams. This resource is invaluable for owners, mechanics, and technicians seeking to maintain, diagnose, and repair the vehicle with factory-level accuracy. 🏷️ Basic Information Identification Make: BMW Model: 540i Year: 1997 Codes Chassis Code: E39 👋 Introduction Market Position Positioning: The 1997 BMW 540i represented the pinnacle of executive sedan luxury and performance in its era, competing with established luxury marques like Mercedes-Benz (E-Class) and Audi (A6). Competitive Analysis Competitors: Key competitors included the Mercedes-Benz E420/E50, Audi A6 Quattro, Lexus LS400, and Cadillac DeVille. Key Features Features: Powerful V8 engine, rear-wheel drive bias, sophisticated multi-link suspension, available Steptronic automatic transmission, luxurious interior appointments, and advanced (for the time) safety and technology features. 📋 Manual Details Coverage Areas Coverage: Complete official factory service and repair information for the 1997 BMW 540i (E39 chassis). Page Count Pages: Hundreds (specific count not provided in product data, but described as comprehensive). Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: V8 M62B44 engine (4.4L), including diagnostics, disassembly, assembly, and specifications. Transmission: 5-speed Steptronic automatic transmission (GM A5S-310Z), including operation, diagnostics, and overhaul procedures. Drivetrain: Rear-wheel drive system, including differential, driveshaft, and axle components. Suspension: Front and rear suspension systems (independent, multi-link), including component replacement, alignment, and troubleshooting. Brakes: Hydraulic brake system with ABS (Anti-lock Braking System), including component testing, repair, and bleeding procedures. Steering: Hydraulic power steering system, including pump, rack, and column components. Electrical: Complete electrical system, including battery, charging system, ignition, lighting, power accessories, and diagnostic trouble codes (DTCs). Body: Body panels, doors, windows, locks, hinges, and exterior trim. HVAC: Heating, Ventilation, and Air Conditioning (HVAC) system, including refrigerant handling and component diagnostics. Interior: Interior trim, seating, dashboard, and instrument cluster. Comfort Systems: Power seats, sunroof, and other comfort-related electrical systems. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plug replacement, fluid checks and changes. Repair: Detailed step-by-step repair instructions for all major components and systems. Diagnostics: Comprehensive diagnostic procedures, including troubleshooting charts and symptom-based analysis. Disassembly Assembly: Complete instructions for engine, transmission, and component removal and installation. Specifications: Torque specifications, clearances, tolerances, and fluid capacities. Wiring Diagrams: Detailed electrical wiring diagrams for all vehicle systems. Technical Depth Depth: Full factory level detail, suitable for professional technicians and advanced DIY enthusiasts. Covers everything from basic maintenance to complete engine and transmission overhauls and complex electrical diagnostics. 📊 Manual Specifications File Format Format: PDF Print Quality Quality: High-resolution, allowing for clear printing of all text and diagrams. Searchable text for easy navigation. Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: M62B44 Displacement: 4.4 Liters (4398 cc) Configuration: V8, 32 valves (DOHC - Dual Overhead Camshafts) Performance Horsepower: 282 hp @ 5400 rpm Torque: 317 lb-ft @ 3600 rpm Fuel System Fuel Delivery: Sequential Multi-Point Fuel Injection (SMPI) Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Cooling System Coolant Capacity: Approx. 10.5 Liters (11.1 US Quarts) Ignition System Ignition Type: Distributorless Ignition System (DIS) with individual ignition coils. 🔧 Transmission Standard Type: 5-Speed Steptronic Automatic Transmission (GM A5S-310Z) Optional Type: 5-Speed Manual Transmission (Getrag Type D) Features Steptronic Operation: Allows manual selection of gears via the shift lever for a more engaging driving experience. Fluid Specifications Automatic Fluid Type: BMW ATF LT-3 (or equivalent DEXRON III/MERCON compatible fluid) Fluid Capacity Automatic Capacity: Approx. 8.5 Liters (9 US Quarts) for complete fill. 📐 Dimensions Exterior Length: 190.3 inches Width: 71.2 inches Height: 56.2 inches Wheelbase: 111.4 inches Weights Curb Weight: Approx. 3700-3850 lbs (depending on options) Gross Vehicle Weight Rating: Approx. 4760 lbs Cargo Trunk Volume: Approx. 15.1 cubic feet Wheels Tires Wheelbase Bolt Pattern: 5 x 120 mm Standard Tire Size: 225/55R16 🛡️ Safety Features Ratings NHTSA Front Impact: 4/5 Stars (Driver/Passenger) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control:...