BMW 8 Series Workshop Manual 1989 1990 1991 1992 1993
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🏷️ Basic Information Identification Make: BMW Model: 8 Series Generation: E31 Codes Chassis Code: E31 Engine Codes Covered: M60B30, M60B40, M62B35, M62B44, S70B56 👋 Introduction Market Position Positioning: Flagship luxury coupe/convertible of its era, representing BMW's pinnacle of engineering and design. Competitive Analysis Competitors: Mercedes-Benz SL-Class (R129), Porsche 928, Jaguar XJS. Key Features Design: Shark-nose styling, frameless windows, concealed headlamps, distinctive kidney grille, long hood, short deck. Engineering: Advanced V8 and V12 engines, sophisticated chassis, luxury appointments, driver-focused cockpit. Manual Value Proposition Manual Benefit: Essential for owners and independent workshops seeking to maintain, diagnose, and repair this complex luxury vehicle. 📋 Manual Details Coverage Areas Models Covered: All 8 Series (E31) models Regions Covered: Global (specifications applicable across major markets) Page Count Estimated Pages: Extensive (exact number not provided, but described as comprehensive A-Z) Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: Digital (printable pages) 📖 Manual Coverage Systems Covered Engine: Complete overhaul, diagnosis, tuning, cooling, lubrication, fuel injection (DME), ignition Transmission: Automatic (ZF 4HP22, ZF 5HP18, ZF 5HP30) and Manual (Getrag 280/5) service, overhaul, diagnosis, fluid service Drivetrain: Driveshafts, differential, axles, clutch (manual transmission) Suspension: Front and rear suspension, shock absorbers, springs, control arms, bushings, self-leveling rear suspension (if equipped) Steering: Power steering system, steering column, steering gear, diagnosis and repair Brakes: Hydraulic system, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake pads, rotors, calipers, lines, bleeding procedures Electrical System: Comprehensive coverage including battery, charging system, starter, lighting, power windows, mirrors, seats, central locking, EWS (Electronic Immobilizer), dashboard instruments, diagnostic connectors (OBD I) Body And Chassis: Frame, body panels, doors, hood, trunk, bumpers, convertible top (if applicable), interior trim, corrosion prevention HVAC: Heating, Ventilation, and Air Conditioning system diagnosis, component replacement, refrigerant service Fuel System: Fuel tank, fuel pump, fuel lines, injectors, fuel pressure regulator, emissions control systems (ASC, secondary air) Exhaust System: Catalytic converters, mufflers, exhaust pipes, O2 sensors Wheels And Tires: Specifications, mounting, balancing, torque values Lighting: Headlights (including pop-up mechanism), taillights, interior lighting, fog lights, wiring diagrams for all lighting circuits. Comfort Systems: Power seats, heated seats, memory seats, power mirrors, cruise control, central locking, alarm system. Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication, inspection schedules Diagnostics: Troubleshooting guides, symptom-based diagnostics, wiring diagrams for fault tracing Repair: Step-by-step instructions for component removal, installation, and repair for all major systems Overhaul: Complete engine and transmission overhaul procedures, including torque specifications and clearances Electrical Troubleshooting: Detailed wiring diagrams, component location charts, testing procedures for electrical faults Bodywork: Panel alignment, dent repair, rust treatment, glass replacement, convertible top repair Body Repair Procedures: Panel replacement, door hinge adjustment, bumper repair/replacement, glass sealant procedures, convertible top mechanism adjustments and repair. Diagnostic Tools: Information on using BMW's proprietary diagnostic tools of the era (e.g., GT1, although often referred to with older terminology in period manuals). Technical Depth Depth: Comprehensive from basic maintenance to advanced engine and transmission rebuilds, including electrical system diagnostics Diagnostics Capability: Includes procedures for using older OBD I diagnostic tools and interpreting error codes Diagrams Illustrations: Numerous detailed pictures and diagrams are explicitly mentioned, crucial for visual learners and complex procedures 📊 Manual Specifications File Format Digital Format: Likely PDF or similar, enabling easy searching and printing Searchability: Digital format usually implies full text search capability, allowing users to quickly find specific topics or components. Print Quality Printability: All pages are printable, allowing for convenient use in a workshop environment Binding Type Binding: Not specified for digital format, but implies a bound, cohesive document when printed Paper Type Paper Quality: Not applicable for digital, but implies high-quality content suitable for printing on durable paper ⚙️ Engine Specifications Primary Engine Engine Variants: 840Ci (3.0L and 3.5L V8), 850Ci (5.0L V12), 850CSi (5.6L V12). Performance 840Ci Engine Power: 218 hp (M60B30), 296 hp (M60B40/M62B40) 850I Engine Power: 300 hp (M70B50), 326 hp (M73B54 - later models) 850Csi Engine Power: 375 hp (S70B56) Fuel System Injection System: Bosch Motronic Engine Management (various versions: M1.3, M1.7, DME7.1, DME M5.2) Fuel Type: Unleaded Premium Gasoline (Octane rating dependent on market and specific engine) Engine Construction Block Material: Aluminum (for M60/M62 V8 and M70/S70 V12) Cylinder Head Material: Aluminum 🔧 Transmission Standard Standard Transmission: Automatic (ZF 4HP22, ZF 5HP18, ZF 5HP30) depending on model and year Optional Optional Transmission: 5-speed manual (Getrag 280/5) available on select 840Ci and 850i models, particularly early European versions. Features Transmission Features: Sport mode, manual shift gate (Steptronic on later models). Fluid Specs Automatic Transmission Fluid Spec: BMW LT-2, ZF LifeguardFluid 5 (or equivalent Dexron III/Mercon for earlier models). 📐 Dimensions Exterior Length: Approx. 4,780 - 4,810 mm (188.2 - 189.4 in) Width: Approx. 1,855 mm (73.0 in) Height: Approx. 1,370 mm (53.9 in) Wheelbase: Approx. 2,630 mm (103.5 in) Weights Curb Weight: Approx. 1,700 - 1,950 kg (3,750 - 4,300 lbs)...
Unleaded Premium Gasoline (Octane rating dependent on market and specific engine)
Engine Construction
Block Material:
Aluminum (for M60/M62 V8 and M70/S70 V12)
Cylinder Head Material:
Aluminum
🔧 Transmission
Standard
Standard Transmission:
Automatic (ZF 4HP22, ZF 5HP18, ZF 5HP30) depending on model and year
Optional
Optional Transmission:
5-speed manual (Getrag 280/5) available on select 840Ci and 850i models, particularly early European versions.
Features
Transmission Features:
Sport mode, manual shift gate (Steptronic on later models).
Fluid Specs
Automatic Transmission Fluid Spec:
BMW LT-2, ZF LifeguardFluid 5 (or equivalent Dexron III/Mercon for earlier models).
📐 Dimensions
Exterior
Length:
Approx. 4,780 - 4,810 mm (188.2 - 189.4 in)
Width:
Approx. 1,855 mm (73.0 in)
Height:
Approx. 1,370 mm (53.9 in)
Wheelbase:
Approx. 2,630 mm (103.5 in)
Weights
Curb Weight:
Approx. 1,700 - 1,950 kg (3,750 - 4,300 lbs) depending on engine and options.
🛡️ Safety Features
Ratings
Safety Ratings:
While official crash test data from modern agencies for this era may be limited, BMW vehicles of this period were engineered with robust safety structures.
Active Features
Active Safety:
ABS, Traction Control (ASC/ASC+T), optional DSC on later models.
Passive Features
Passive Safety:
Front airbags, reinforced passenger cell, side-impact protection beams, seatbelt pre-tensioners.
💡 Technology Features
Infotainment
Infotainment System:
Early generation BMW Professional Radio, cassette player, optional CD changer, analog climate control display, optional navigation system (on later models, very basic by modern standards).
Driver Assistance
Driver Assistance Features:
Cruise control, limited slip differential (on some models), ABS, ASC/ASC+T.
Connectivity
Connectivity Features:
Minimal by modern standards, primarily focused on car-to-driver communication through dashboard indicators and basic audio integration.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically every 10,000 - 15,000 miles or 12-24 months, depending on driving conditions and oil quality. Refer to the manual for specific conditions.
Spark Plug Replacement:
Varies by engine type (e.g., V8s and V12s have multiple spark plugs, often with longer intervals). Consult manual for specific recommendations (e.g., ~30,000 - 60,000 miles for platinum plugs).
Transmission Fluid Service:
Recommended every 30,000 - 60,000 miles for automatic transmissions, often involving fluid and filter replacement.
Fluid Specifications
Engine Oil Spec:
BMW Longlife-98 (or equivalent high-quality synthetic, e.g., Castrol Edge 5W-30, 5W-40, 0W-40 depending on temperature and engine variant). Check manual for exact grade.
Coolant Spec:
BMW Blue Antifreeze (G48) or equivalent Ethylene Glycol based coolant with corrosion inhibitors.
Brake Fluid Spec:
DOT 4
Known Issues
Common Issues Engine:
V8 engine oil pan gasket leaks, coolant leaks (especially plastic components), VANOS system issues (on M60/M62 engines), ignition coil failures, timing chain guides (on early M60).
Common Issues Transmission:
Automatic transmission harsh shifting or failure to engage, hydraulic leaks, torque converter issues.
Common Issues Electrical:
Window regulator failures, door lock actuators, ABS/DSC sensor failures, EWS immobilizer faults, pixelated instrument cluster displays, heater control valve failures.
Common Issues Suspension:
Front control arm bushings, rear self-leveling suspension issues (if equipped), damper leaks.
Parts Availability
Parts Availability Note:
Some specialized parts can be rare and expensive due to the vehicle's age and niche status, making a comprehensive manual even more valuable for troubleshooting and identifying alternatives.
📚 Vehicle History
Brand Heritage
Bmw Heritage:
BMW has a long-standing reputation for performance, luxury, and engineering excellence, particularly with its coupes and grand tourers.
Model Evolution
E31 Development:
Conceived as BMW's ultimate grand tourer, replacing the 6 Series (E24) with a focus on advanced technology, aerodynamic design, and luxurious comfort.
Production
Production Years:
1989 - 1999
Manufacturing Plant:
Dingolfing, Germany
🏆 Awards & Recognition
Recognitions
Design Awards:
The E31 8 Series' design, penned by Klaus Kapitza, is widely regarded as a design classic and a benchmark for automotive styling of the era.
Ratings
Performance Ratings:
Consistently praised by automotive journalists for its powerful engines, refined ride, and comfortable yet sporty handling.
Certifications
Certification:
Not applicable in the modern sense of third-party certifications, but represents BMW's internal quality and engineering standards of the late 80s and 90s.