🏷️ Basic Information Identification Make: BMW Model: 8 Series Chassis Code: E31 Year: 1990 👋 Introduction Market Position Vehicle Class: Luxury Grand Tourer (GT) Competitive Analysis Key Competitors 1990: Mercedes-Benz SEC-Class, Porsche 928, Jaguar XJ-S Key Features Design Philosophy: BMW's focus on performance, luxury, and advanced technology for a grand touring experience 📋 Manual Details Coverage Coverage Years: 1990 Type Manual Type: Factory Repair Manual / Service Manual Language Language: English Format File Format: PDF / WINRAR 📖 Manual Coverage Systems Covered Engine Maintenance: All maintenance and general instructions pertaining to the engine Motor Repair: Detailed repair procedures for the motor/engine Engine Electrics: Comprehensive coverage of engine electrical systems and components Fuel Preparation And Control: In-depth explanation of fuel injection, mixture control, and related systems Fuel Tank And Lines: Maintenance, inspection, and repair of the fuel tank and associated lines Radiator And Cooling: Cooling system diagnostics, repair, and maintenance, including the radiator Exhaust System: Repair and replacement procedures for the exhaust system Clutch System: Detailed information on clutch inspection, adjustment, and repair Gearbox And Drivetrain: Repair and maintenance of the gearbox and related drivetrain components Drive Chain And Shafts: Procedures for servicing drive shafts and related components Steering System: Diagnostic and repair procedures for the steering system Rear Wheel Drive: Specific information related to the rear-wheel-drive axle and components Brake System: Comprehensive coverage of brake system maintenance, repair, and diagnostics Wheels And Tires: Information on wheel balancing, tire replacement, and related procedures Frame And Chassis: Structural repair and maintenance guidance for the frame and chassis Equipment And Accessories: Service and repair for various vehicle equipment and accessories General Electrical Equipment: Coverage of the vehicle's general electrical systems beyond the engine Instruments And Gauges: Diagnosis and repair of the instrument cluster and associated gauges Lighting System: Repair and maintenance of headlights, taillights, and other lighting components Procedures Included Preventative Maintenance: Detailed schedules and procedures for routine maintenance tasks Diagnostic Troubleshooting: Step-by-step troubleshooting guides for common and uncommon issues Component Removal Installation: Instructions for the removal and installation of major and minor vehicle components Adjustment Procedures: Guidance on necessary adjustments for various systems (e.g., clutch, brakes) Technical Depth Depth Of Coverage: Comprehensive, covering from basic maintenance to in-depth repairs and diagnostics 📊 Manual Specifications File Quality File Format Delivery: Instant Download in PDF/WINRAR format Compatibility Operating Systems: Compatible with Windows, Linux, and MAC operating systems ⚙️ Engine Specifications Primary Engine Variant E31 1990 Engine Code: M60B30 (3.0L) / M60B40 (4.0L) Performance 3.0L Horsepower Approx: 215 hp @ 5800 rpm Torque Approx: 290 Nm (214 lb-ft) @ 4500 rpm Performance 4.0L Horsepower Approx: 295 hp @ 5600 rpm Torque Approx: 410 Nm (302 lb-ft) @ 4100 rpm Fuel System Fuel Delivery: Bosch Motronic Electronic Fuel Injection (EFI) Engine Type Configuration: V8 (3.0L and 4.0L) Displacement 3.0L: 2986 cc Displacement 4.0L: 3982 cc 🔧 Transmission Standard Transmission Type: 4-Speed Automatic (e.g., ZF 4HP24) Optional Transmission Type: 5-Speed Manual (Getrag 280) Features Traction Control: ASC+T (Automatic Stability Control + Traction) available on some models 📐 Dimensions Exterior Length Approx Length: 4780 mm (188.2 in) Exterior Width Approx Width: 1855 mm (73.0 in) Exterior Height Approx Height: 1370 mm (53.9 in) Wheelbase Approx Wheelbase: 2633 mm (103.7 in) Weights Approx Curb Weight: 1650 - 1850 kg (3638 - 4079 lbs) depending on engine and options 🛡️ Safety Features Passive Features Airbags: Driver and passenger airbags standard Seatbelts: Pretensioning seat belts Active Features ABS: Anti-lock Braking System (ABS) standard Traction Control: Optional Automatic Stability Control + Traction (ASC+T) 💡 Technology Features Infotainment 1990 Audio System: High-fidelity BMW stereo systems, often with cassette player and optional CD changer. Climate Control: Automatic climate control with dual-zone functionality available Driver Assistance 1990 Cruise Control: Standard electronic cruise control Park Distance Control: Optional Park Distance Control (PDC) was introduced in later E31 models, but likely not standard on 1990 models. Connectivity 1990 Telematics: Basic telematics systems were not prevalent. Focus on in-car comfort and driving. 🔧 Maintenance Service Intervals Engine Oil Interval Type: Variable (based on driving conditions, typically 10,000-15,000 miles or annually) Fluid Specifications Engine Oil Recommended Viscosity: Typically 5W-30 or 5W-40 synthetic, refer to owner's manual for precise specification Fluid Specifications Coolant Type: BMW Blue Coolant (G48 ethylene glycol based) Fluid Specifications Brake Fluid Type: DOT 4 Known Issues E31 Common Issues Overview: While a robust vehicle, common E31 issues can include ABS sensor failures, cooling system component degradation (hoses, radiator), headlight motor failures, door seal aging, and potential for VANOS issues on later models (though less common on early M60). Part Numbers Examples Oil Filter 3.0L M60: e.g., Mann-Filter HU 716/2 x or equivalent BMW part number Oil Filter 4.0L M60: e.g., Mann-Filter HU 718/1 x or equivalent BMW part number 📚 Vehicle History Brand Heritage Bmw Philosophy: Renowned for engineering excellence, performance, and driver engagement. Model Evolution...