BMW 8 Series 850CSi 1992-1996 Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 8 Series Model Variant: 850CSi Production Years: 1992-1996 Codes Chassis Code: E31 Engine Code: S70B56 👋 Introduction Market Position Positioning: BMW's flagship luxury...

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类型: Car

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标签: 1992 1993 1994 1995 1996 8 Series 850CSi BMW Car Cars Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

8 Series

Model Variant:

850CSi

Production Years:

1992-1996

Codes

Chassis Code:

Engine Code:

S70B56

👋 Introduction

Market Position

Positioning:

BMW's flagship luxury GT, a blend of performance and sophisticated design

Competitive Analysis

Competitors:

Ferrari 456 GT, Porsche 928 GTS, Aston Martin DB7

Key Features

Design:

Bold wedge-shaped design by Claus Luthe, pop-up headlights, frameless windows

Engine Philosophy:

Naturally aspirated V12 for smooth, effortless power delivery

Driving Dynamics:

Focus on grand touring comfort and stability at high speeds

📋 Manual Details

Coverage Areas

Primary Coverage:

Mechanical and Electrical Systems

Secondary Coverage:

Bodywork, Chassis, Troubleshooting

Page Count

Estimated Pages:

Approximately 1500+

Manual Type

Type:

Workshop Service Repair Manual

Orientation:

Technician-focused

Language

Language:

English

Format

Format:

📖 Manual Coverage

Systems Covered

Engine:

V12 Engine (S70B56), Engine Management, Fuel System, Cooling System, Lubrication System, Exhaust System, Engine Mechanical (Disassembly/Reassembly)

Transmission:

6-Speed Manual Transmission (ZF S6-740), Transmission Fluid, Clutch System, Driveshafts, Differential

Drivetrain:

Rear-Wheel Drive System, Driveshaft, Rear Axle, Limited Slip Differential

Suspension:

Front and Rear Suspension Components, Springs, Dampers, Bushings, Control Arms, Steering Knuckles, Self-Leveling Rear Suspension (if equipped)

Brakes:

Front and Rear Disc Brakes, ABS (Anti-lock Braking System), Brake Fluid, Brake Lines, Parking Brake System

Steering:

Power Steering System, Steering Rack, Steering Column, Wheel Alignment Specifications

Electrical:

12V Electrical System, Battery, Alternator, Starter Motor, Fuse Box Diagrams, Wiring Diagrams, Lighting System, Ignition System, ECU (Engine Control Unit) and Sensors

Bodywork:

Exterior Panels, Doors, Hood, Trunk, Bumpers, Glass, Body Sealing, Corrosion Protection

Interior:

Seats, Dashboard, Trim Panels, Headliner, HVAC (Heating, Ventilation, Air Conditioning) Controls

HVAC:

Climate Control System, Compressor, Condenser, Evaporator, Refrigerant, Blower Motor, Ducts

Safety Systems:

Airbag System (if equipped), Seatbelts

Procedures Included

Routine Maintenance:

Oil Changes, Filter Replacements, Fluid Checks and Top-offs, Spark Plug Replacement, Belt Inspections

Troubleshooting:

Diagnostic Procedures, Fault Code Interpretation, Symptom-Based Diagnosis

Repair Procedures:

Engine Rebuilding, Transmission Overhaul, Suspension Component Replacement, Brake Caliper Overhaul, Electrical Component Diagnosis and Repair

Disassembly Assembly:

Step-by-step guides for major component removal and installation

Specifications Data:

Torque Specifications, Tolerances, Clearance Measurements, Fluid Capacities

Technical Depth

Depth:

Comprehensive (from basic maintenance to complete engine/transmission rebuilds)

Diagnostics:

Advanced diagnostic procedures for engine management and electrical systems

Wiring Diagrams:

Detailed electrical schematics for all vehicle systems

📊 Manual Specifications

File Format

Searchability:

Searchable PDF text

Print Quality

Quality:

High-resolution scans, clear text and diagrams

Binding Type

Binding:

N/A (Digital PDF)

Paper Type

Paper:

N/A (Digital PDF)

⚙️ Engine Specifications

Primary Engine

Engine Type:

S70B56, 48-valve V12

Displacement:

5.6 Liters (5576 cc)

Performance

Horsepower:

375 hp @ 5300 rpm (380 PS)

Torque:

413 lb-ft (560 Nm) @ 4000 rpm

Fuel System

Injection:

Sequential Multi-Point Fuel Injection (SFI), Bosch Motronic M4.0

Fuel Type:

Premium Unleaded Gasoline (91+ Octane)

Cooling System

Capacity:

Approximately 12.0 Liters

Lubrication System

Oil Capacity:

Approximately 8.5 Liters

Oil Specification:

BMW Longlife-98, API SG or ACEA A2-96 (Refer to manual for exact specification)

🔧 Transmission

Standard

Transmission Type:

6-Speed Manual

Manufacturer:

ZF (Model S6-740)

Optional

Transmission Type:

4-Speed Automatic (Optional on some earlier models, but 850CSi is manual only)

Features

Clutch:

Hydraulic Clutch System

Transmission Fluid Type:

Manual Transmission Fluid - Refer to manual for specific type (e.g., SAE 75W-90 API GL-4/GL-5)

📐 Dimensions

Exterior

Length:

191.1 inches (4854 mm)

Width:

71.7 inches (1821 mm)

Height:

51.4 inches (1306 mm)

Wheelbase:

100.4 inches (2550 mm)

Weights

Curb Weight:

Approximately 4,123 lbs (1870 kg)

Gross Weight:

Approximately 5,027 lbs (2280 kg)

Interior

Seating Capacity:

4 (2+2 Configuration)

🛡️ Safety Features

Ratings

Crash Test Data:

Limited official crash test data available from the era; BMW's reputation for structural integrity.

Active Features

Standard Anti-lock Braking System (ABS)

Traction Control:

Optional ASC+T (Automatic Stability Control + Traction)

Passive Features

Airbags:

Driver and Passenger Airbags

Seatbelts:

Pretensioned Seatbelts

Body Structure:

Reinforced safety cell

💡 Technology Features

Infotainment

Audio System:

High-fidelity BMW Bavaria C Business or Professional RDS radio and cassette player, optional CD changer.

Climate Control:

Dual-zone automatic climate control

Driver Assistance

Cruise Control:

Standard cruise control

Parking Assistance:

Rear parking sensors (optional on some models)

Connectivity

Phone Integration:

Early integrated car phone systems (optional).

Lighting

Headlights:

Pop-up Halogen headlights

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 7,500-10,000 miles or 12 months (depending on driving conditions and oil used, refer to manual)

Spark Plug Replacement:

Approximately every 30,000-60,000 miles (depending on plug type; double-platinum recommended for V12)

Coolant Flush:

Every 2-3 years or 30,000 miles

Fluid Specifications

Brake Fluid:

DOT 4

Power Steering Fluid:

CHF 11S (Central Hydraulic Fluid) or equivalent

Known Issues

Engine:

VANOS (Variable Valve Timing) solenoid issues, ignition coil failures, starter motor wear, oil leaks from valve cover gaskets and oil pan.

Electrical:

Corroded wiring harness connectors, ABS sensor failures, central locking issues, power window regulators.

Suspension:

Worn control arm bushings, aging self-leveling suspension components (rear).

Cooling System:

Plastic coolant expansion tank cracking, water pump impeller degradation.

Part Numbers Examples

Oil Filter:

Mann-Filter HU 925/2, Mahle OX 107/1

Air Filter:

Mann-Filter C 25 410

Spark Plug:

NGK BKR6EQUP (Double Platinum)

📚 Vehicle History

Brand Heritage

Bmw Legacy:

BMW's history of engineering luxury sports coupes and performance sedans

Model Evolution

E31 Development:

Developed as a halo car to showcase BMW's technological capabilities and design prowess

850I To 850Csi Transition:

850CSi was a significant upgrade over the initial 850i, featuring a larger V12, more power, and refined chassis dynamics.

Special Edition:

The 850CSi was the most potent and driver-focused variant of the E31 8 Series.

Production

Production Volume:

Approximately 1,510 units worldwide (for 850CSi)

Manufacturing Plant:

Dingolfing, Germany

🏆 Awards & Recognition

Recognitions

Automotive Press:

Consistently praised by automotive journalists for its V12 engine, refined ride, and timeless design.

Ratings

Owner Satisfaction:

High owner satisfaction for its luxury and performance, though maintenance can be costly.

Certifications

Engineering:

Represents a pinnacle of BMW's engineering and design from the early 1990s.