🏷️ Basic Information Identification Make: BMW Model: 8-Series Chassis Code: E31 Production Years Covered: 1989-1999 Variant Models Covered: 840Ci, 850i, 850Ci, 850CSi, M8 👋 Introduction Market Position Market Position: The BMW 8-Series (E31) was positioned as a luxurious, high-performance grand tourer, competing with marques like Mercedes-Benz (SL-Class) and Jaguar (XJS). This manual caters to enthusiasts and professionals seeking to maintain and repair these complex vehicles. Competitive Analysis Competitive Analysis: The E31 8-Series represented BMW's flagship coupe of its era, offering advanced technology and a powerful V8 and V12 engine lineup. This manual is essential for anyone working on such a sophisticated and relatively rare vehicle. Key Features Key Features: Comprehensive coverage, high page count, detailed procedures, digital format for immediate access, broad OS compatibility, and a focus on accurate technical data for all E31 variants. 📋 Manual Details Coverage Areas Coverage Summary: Comprehensive service, maintenance, and troubleshooting for all E31 8-Series models (840Ci, 850i, 850Ci, 850CSi, M8) from 1989-1999, covering all engines, trims, and transmissions. All Models Engines Trims Transmissions: Yes, explicitly states coverage for all models, engines, trims, and transmission types within the 1989-1999 8-Series (E31) range. Page Count Page Count: 980 Manual Type Manual Type: Workshop Repair & Service Manual Language Language: English Format Format: PDF, ZIP 📖 Manual Coverage Systems Covered Engine Systems: Crankshaft, Transmission/Balancer, Engine Lubrication and Cooling, Ignition System, Engine Removal and Installation, Crankcase/Piston/Cylinder, Engine Combustion System, Fuel Injection System, Cylinder Head/Valves Drivetrain Systems: Gearbox & Clutch, Transmission System, Rear Wheel System Chassis Suspension Steering: Wheels & Tyres, Suspension, Front Wheel and Steering System, Chassis Braking Electrical Lighting: Braking System, Electrical System, Lights/Meters/Switches, Battery/Charging System, Alternator/Starter Clutch Body Exhaust: Frame/Body Panels/Exhaust System, Fenders and Exhaust Pipe, Body & Fixtures Fuel System Details: Engine Fuel System, Fuel injection system covering components, operation, diagnosis, and repair. Cooling System Details: Cooling system and Engine Lubrication and Cooling, covering radiator, coolant flow, water pump, thermostat, oil pump, oil cooler, and lubrication passages. Ignition System Details: Ignition System, covering spark plugs, coils, distributors (if applicable), and ignition control modules. Electrical System Details: Electrical System, Battery/Charging System, Alternator/Starter Clutch, Lights/Meters/Switches, covering power generation, distribution, lighting, instrumentation, and switches. Body And Interior: Frame/Body Panels/Exhaust System, Fenders and Exhaust Pipe, Body & Fixtures, covering structural components, body panels, doors, trim, and exhaust system repair. Procedures Included Maintenance Procedures: Periodic checks & Adjustments, Maintenance, General vehicle maintenance & mechanical information Repair Procedures: Disassembling, Inspecting, Assembling instructions for specific components and systems, Problematic technical solutions Troubleshooting Diagnostics: Troubleshooting, Fault code diagnostics Service Light Reset: Includes procedures for resetting service interval indicators. Fault Code Diagnostics: Detailed information on fault code diagnostics for engine, transmission, and other electronic control units. Engine Rebuild Procedures: Covers Engine Removal and Installation, Cylinder Head/Valves, Crankcase/Piston/Cylinder, Engine Combustion System, implying procedures suitable for complete engine overhauls. Transmission Repair: Detailed procedures for Gearbox & Clutch and Transmission System, covering both manual and automatic transmissions. Technical Depth Technical Depth: Complete step-by-step instruction, diagrams, illustration, and specifications to repair and troubleshoot all aspects of the vehicle. Includes specific torque settings, re-setting of service light indicators, fluid levels & grades, service intervals, and general mechanical information. Wiring Diagrams Coverage: Includes comprehensive wiring diagrams essential for diagnosing and repairing electrical faults across all vehicle systems. Specifications Coverage: Provides detailed technical data, including torque specifications, fluid capacities and grades, electrical component data, and engine/transmission specific measurements. Torque Settings: Includes specific torque settings for various fasteners and components, crucial for correct assembly. Fluid Levels Grades: Specifies correct fluid levels and grades for all automotive fluids. 📊 Manual Specifications File Format File Format Details: PDF, ZIP. Downloadable, easily installable, readable, and printable. Compatible with Windows (95/98/ME/XP/vista/7/8), Linux, and MAC operating systems. No activation codes, encryptions, or passwords. Searchable Text: Implied by PDF format, allowing for text searching of technical information. Print Quality Print Quality: High quality, ensuring clarity of diagrams and text for ease of use in a workshop environment. Binding Type Binding Type: N/A (Digital format, print-on-demand capability implied) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine 840Ci Engine: M60B40 V8, 4.0L (3982 cc), 32-valve, DOHC. Horsepower: 282 hp (210 kW) at 5800 rpm. Torque: 400 Nm (295 lb-ft) at 4500 rpm. 850I 850Ci Engine: M70B50 V12, 5.0L (4988 cc), 24-valve, SOHC. Horsepower: 296 hp (221 kW) at 5200 rpm. Torque: 470 Nm (347 lb-ft) at 3900 rpm. 850Csi Engine: S70B56 V12, 5.6L (5576 cc), 48-valve, DOHC. Horsepower: 375 hp (280 kW) at 5300 rpm. Torque: 550 Nm (406 lb-ft) at 4100 rpm. M8 Engine: S70/2 V12, 6.1L (6064 cc), 48-valve, DOHC (based on McLaren F1 engine). Horsepower: 550 hp (410 kW). Torque: 650 Nm (479 lb-ft). Fuel System Fuel System: Bosch Motronic engine management system (specific version varies by engine), multi-point fuel injection. 🔧 Transmission Standard 840Ci Transmission: 4-speed automatic (optional 5-speed manual for...