This comprehensive service and repair manual for the 1994 BMW 8-series E31 provides detailed instructions, diagrams, illustrations, wiring schematics, and specifications to assist you in maintaining, servicing, diagnosing, and repairing your vehicle. This is the same manual used by technicians at dealerships, ensuring you have access to the most accurate and up-to-date information.

The manual covers all models and repairs, offering a complete A-Z guide. It includes detailed information on various aspects of your vehicle, including:

* **Maintenance:** Routine maintenance schedules, fluid capacities, and filter replacement procedures.
* **Engine:** Troubleshooting, repair, and rebuild procedures for the engine, including components like the cylinder head, camshaft, valves, pistons, and crankshaft.
* **Control System:** Detailed information on the engine control unit (ECU), sensors, actuators, and wiring diagrams for diagnosing and repairing electronic control systems.
* **Mechanical:** Comprehensive coverage of the mechanical systems, including the transmission, drivetrain, suspension, brakes, steering, and exhaust system.
* **Fuel Service Specifications:** Information on fuel system components, fuel pressure, and fuel injection systems.
* **Emission Control:** Detailed information on the emissions control system, including catalytic converters, oxygen sensors, and exhaust gas recirculation (EGR) systems.
* **Intake Exhaust Cooling:** Troubleshooting and repair of the intake and exhaust systems, including cooling systems and components.
* **Lube:** Guidelines for lubrication, oil types, and recommended lubricants for various components.
* **Ignition Starting Charging:** Detailed information on the ignition system, starter motor, and charging system, including troubleshooting and repair procedures.
* **Auto Transmission Clutch:** Repair procedures and specifications for automatic transmissions and clutches.
* **Manual Transmission:** Repair procedures and specifications for manual transmissions.
* **Transfer Propeller Shaft:** Information on the transfer case, propeller shaft, and drive shafts.
* **Drive Shaft:** Troubleshooting and repair of drive shafts and related components.
* **Differential:** Repair procedures and specifications for the differential.
* **Axle Suspension:** Comprehensive information on axles, suspension components, and associated systems.
* **Tire & Wheel:** Information on tire sizes, wheel specifications, and tire maintenance procedures.
* **Brake Control:** Troubleshooting and repair of brake control systems, including anti-lock braking systems (ABS).
* **Brake:** Detailed information on brake components, brake adjustments, and brake system maintenance.
* **Parking Brake:** Repair procedures and specifications for the parking brake system.
* **Steering Column:** Information on the steering column, steering wheel, and related components.
* **Power Steering:** Troubleshooting and repair of power steering systems.
* **Air Condition:** Detailed information on the air conditioning system, including refrigerant charging, repair, and maintenance.
* **Suppl Restraint System:** Information on the supplemental restraint system (SRS) and airbags, including deployment and safety procedures.
* **Seat Belt:** Repair procedures and specifications for the seat belt system.
* **Engine Immobilizer:** Information on the engine immobilizer system and how to diagnose and repair issues.
* **Cruise Control:** Troubleshooting and repair of the cruise control system.
* **Wiper & Washer:** Information on wiper and washer systems, including motor replacement and troubleshooting.
* **Door Lock:** Repair procedures for door locks and locking mechanisms.
* **Meter Audio/Visual:** Information on the instrument panel, gauges, and audio/visual systems.
* **Horn:** Repair procedures and specifications for the horn.
* **Windshield/Glass Mirror:** Information on the windshield, windows, and mirrors.
* **Instrument Panel:** Troubleshooting and repair of the instrument panel and its components.
* **Seat:** Repair procedures and specifications for seats and seat adjustments.
* **Engine Hood/ Door:** Information on the engine hood, doors, and related components.
* **Exterior & Interior:** Information on the exterior and interior of the vehicle, including body panels, trim, and upholstery.
* **Electrical:** Comprehensive coverage of the electrical system, including wiring diagrams, troubleshooting, and repair procedures.
* **Multiplex/ Can Communication:** Information on the multiplex and CAN communication systems.

This manual empowers you to perform repairs and maintenance on your BMW 8-series E31 with confidence and expertise.

The BMW 8-Series E31, launched in 1989 and spanning production until 1999, marked a significant departure from the traditional BMW lineup. Positioned as a luxury grand tourer, the E31 aimed to challenge the established European giants like Mercedes-Benz and Jaguar in the high-end market. It was a bold statement of intent, boasting a sleek, aerodynamically sculpted design that emphasized both elegance and performance. The E31 was built on a unique platform, with a long wheelbase and a wide track, allowing for a spacious interior and a planted stance on the road. The engine options were equally impressive, ranging from the powerful V8 found in the 840i to the iconic V12 in the 850i, showcasing BMW's engineering prowess.

Beyond its aesthetics and power, the 8-Series E31 was a technological marvel. It came equipped with a range of advanced features, including a multi-link suspension system for exceptional handling and ride comfort, a sophisticated ABS braking system, and optional extras like a sunroof, leather upholstery, and a premium sound system. The E31 was a true luxury car, designed for effortless cruising and long-distance travel, embodying the spirit of European craftsmanship and innovation. While not as commercially successful as other BMW models, the 8-Series E31 remains a coveted classic, appreciated for its distinct design, powerful engines, and luxurious appointments. Its rarity and unique character solidify its place as a symbol of BMW's ambition to challenge the status quo and create a truly exceptional automobile.