🏷️ Basic Information Identification Make: BMW Model: M5 Model Generation: E39 Model Year: 1998 Codes Chassis Code: E39 👋 Introduction Market Position Positioning: High-performance luxury sport sedan. Competitive Analysis Competitors: Competed against models like the Mercedes-Benz E55 AMG, Audi S6, and Jaguar XJR. Key Features Performance Focus: Engineered for exceptional performance, handling, and driver engagement. Value Proposition: Offers dealership-level repair information in a convenient digital format for owners and independent workshops. 📋 Manual Details Coverage Areas General Coverage: Comprehensive service and repair for all 1998 BMW M5 E39 models. Repair Scope: A-Z repairs, from basic maintenance to complex diagnostics and component overhauls. Page Count Estimated Page Count: N/A (Digital format, content density variable) Manual Type Type: Factory-level Service and Repair Manual Language Language: English Format Digital Format: PDF File Format Compatibility: Windows Vista (32/64-bit), XP, ME, 98, NT, 2000, and Mac compatible. Software Requirements: Adobe PDF Reader and WinZip (free online). Accessibility: Printable pages, zoomable images, searchable text (PDF functionality). 📖 Manual Coverage Systems Covered Engine: Detailed coverage of engine mechanics, control systems, fuel delivery, emissions, intake, exhaust, cooling, lubrication, ignition, starting, and charging systems. Drivetrain: Includes automatic and manual transmissions, clutch, transfer case, propeller shaft, drive shafts, differentials, and axles. Suspension Steering Brakes: Covers suspension, tires, wheels, brake control, brake systems (including parking brake), and steering (including power steering). Electrical Electronics: Extensive electrical system coverage, including wiring schematics, lighting, instrumentation, audio/visual systems, horn, wipers, washers, door locks, and multiplex/CAN communication. Body Interior Safety: Addresses air conditioning, supplementary restraint systems (SRS), seat belts, engine immobilizer, cruise control, meters, instrument panel, seats, engine hood, doors, exterior/interior trim, glass, mirrors, and windshield. Procedures Included Maintenance Procedures: Step-by-step maintenance procedures, fluid changes, filter replacements, and scheduled servicing. Diagnostic Procedures: Detailed diagnostic charts, troubleshooting guides, and fault code interpretation. Repair Procedures: Comprehensive step-by-step repair instructions for all major components and systems. Installation Procedures: Instructions for component removal, installation, and adjustment. Technical Data Specs: Provides all necessary technical specifications, torque values, clearances, and tolerances. Technical Depth Depth: Factory-level detail, suitable for professional technicians and advanced DIY mechanics. Illustrations Diagrams: Includes numerous diagrams, illustrations, and high-quality photographs to guide repairs. Wiring Schematics: Complete and detailed wiring schematics for all electrical systems. ⚙️ Engine Specifications Primary Engine Engine Code: S62B50 (US Market), S62 (Euro Market) Engine Type: Naturally aspirated V8 Displacement: 4.9 liters (4941 cc) Bore X Stroke: 94.0 mm x 89.0 mm Compression Ratio: 11.0:1 Performance Horsepower Us: 394 hp @ 6600 rpm Horsepower Euro: 400 hp @ 6600 rpm Torque Us: 368 lb-ft @ 5000 rpm Torque Euro: 369 lb-ft @ 5000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with individual throttle bodies (ITB) for each cylinder. Fuel Type: Premium Unleaded Gasoline (91+ octane recommended) Control System Engine Management: Siemens MSS 52 Engine Control Unit (ECU) 🔧 Transmission Standard Type: 6-speed manual transmission (Getrag 420G) Optional Type: None offered for the E39 M5. Features Clutch: Hydraulically operated single dry plate clutch. Differential: Limited-Slip Differential (LSD) with adjustable lock percentage. 📐 Dimensions Exterior Length: 4,876 mm (192.0 in) Width: 1,791 mm (70.5 in) Height: 1,451 mm (57.1 in) Wheelbase: 2,830 mm (111.4 in) Weights Curb Weight: 1,795 kg (3,957 lbs) 🛡️ Safety Features Ratings NHTSA Front Crash Test: 5-Star (for driver and front passenger) IIHS Moderate Overlap Front: Good Active Features Traction Control: Automatic Stability Control (ASC) / Automatic Stability Control + Traction (ASC+T) Brake System: Anti-lock Braking System (ABS), ventilated discs front and rear. Passive Features Airbags: Driver and front passenger airbags, side airbags. Seat Belts: Three-point inertia-reel seat belts with pretensioners and force limiters. Chassis Structure: Reinforced chassis structure and crumple zones. 💡 Technology Features Infotainment Audio System: Factory BMW Professional CD/radio system, optional Harman Kardon audio. Navigation: Optional BMW Navigation System (MKII or MKIII era). Driver Assistance Cruise Control: Standard electronic cruise control. Connectivity Diagnostic Interface: OBD-II compliant diagnostic connector. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500 to 10,000 miles or 12-15,000 km, or annually. Check manual for specific conditions. Spark Plug Replacement: Recommended every 60,000 miles (approx. 100,000 km) or as per manual specifications. Coolant Flush: Recommended every 2-3 years or 30,000-45,000 miles. Fluid Specifications Engine Oil: BMW Longlife-01 (LL-01) certified synthetic oil, SAE 0W-40 or 5W-40 recommended. Capacity: 8.5 liters (9.0 US quarts). Transmission Fluid: Manual: ATF Dexron III or equivalent. Automatic (if applicable, though not for this M5): ATF Dexron III H or BMW ATF LT 71141. Differential Fluid: BMW Hypoid Gear Oil G2 (SAE 75W-90) or equivalent. Coolant: BMW Blue Antifreeze/Coolant (ethylene glycol based) mixed 50/50 with distilled water. Known Issues Vanos System: Potential for VANOS (Variable Valve Timing) solenoid failure or seal degradation, leading to reduced performance or rough idle. Rod Bearings: Known issue with potential wear on connecting rod bearings due to high-performance demands, requiring proactive inspection and replacement. Cooling System: Aging...