🏷️ Basic Information Identification Make: BMW Model: M5 Year: 1991 Codes Chassis Code: E34 Generation Generation Code: E34 M5 👋 Introduction Market Position Target Audience: Owners and independent repair shops seeking accurate, factory-derived information for the 1991 BMW M5. Competitive Analysis Advantage Over Print: Convenient online access, searchability, and frequent updates (though less common for older models) compared to outdated printed manuals. Licensing: Officially licensed and derived from OE (Original Equipment) materials, ensuring accuracy and authenticity. Key Features Ease Of Use: Intuitive interface and quick access to specific repair or maintenance tasks. Cost Effectiveness: Provides substantial savings compared to dealership labor rates by enabling DIY repairs. 📋 Manual Details Coverage Areas Manual Type: Service and Repair Manual Software Language: English Format: Online Software / Web Browser Accessible Access Duration: 1 Year (with discount for extensions) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine disassembly, assembly, component testing, and overhaul procedures. Engine Management: Ignition system, fuel injection system (DME), emissions control, engine sensors, and diagnostic procedures. Drivetrain: Clutch, manual transmission (Getrag 265), driveshaft, differential, and axle shafts. Suspension: Front and rear suspension components, shock absorbers, springs, control arms, bushings, and wheel alignment specifications. Steering: Power steering system, steering rack, tie rods, and steering column. Brakes: Hydraulic system, ABS (Anti-lock Braking System), front and rear disc brake components, calipers, rotors, and brake fluid specifications. Electrical System: Battery, charging system (alternator), starting system, lighting, horns, and accessory circuits. Wiring Diagrams: Comprehensive color-coded wiring diagrams for all vehicle electrical systems. Heating Ventilation And Air Conditioning HVAC: HVAC system components, refrigerant, controls, and troubleshooting. Bodywork: Body panel removal and installation, interior trim, glass, and seals. Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, spark plug replacement, and lubrication. Diagnostics: System-specific diagnostic charts, troubleshooting flowcharts, and fault code interpretations. Repair: Step-by-step repair instructions for all major vehicle systems, including component replacement and adjustment. Rebuilds: Detailed procedures for engine, transmission, and differential rebuilds. Troubleshooting Guides: Extensive troubleshooting guides for common and uncommon vehicle issues. Technical Depth Level Of Detail: Factory-level technical information for professional technicians and advanced DIY enthusiasts. Precision: Includes torque specifications, clearances, timing settings, and pressure readings. 📊 Manual Specifications File Format Format Type: Online Software (Web-based) Compatibility: Compatible with PC, laptop, smartphone, and tablet web browsers. Searchability: Fully searchable text content for quick information retrieval. Print Quality Print Capability: While primarily online, content can be printed by the user. Binding Type Binding: N/A (Online Digital Format) Paper Type Paper Quality: N/A (Online Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: S38B36 Configuration: Inline 6-cylinder, DOHC, 24 valves Displacement: 3.6 Liters (3535 cc) Bore X Stroke: 94.0 mm x 85.0 mm Compression Ratio: 10.0:1 Performance Horsepower: 315 hp @ 6900 rpm (DIN) Torque: 350 Nm (258 lb-ft) @ 4750 rpm (DIN) Fuel System Fuel Delivery: Bosch Motronic M1.2 Fuel Injection and Ignition Fuel Type: Premium Unleaded Gasoline (95-98 RON) Fluid Specs Engine Oil Type: SAE 15W-40 or 20W-50 (API SG or higher) Engine Oil Capacity: 6.5 Liters (with filter) 🔧 Transmission Standard Transmission Type: 5-speed Manual (Getrag 265 'dogleg' or standard pattern) Features Gear Ratios: Refer to manual for specific ratios (e.g., 1st: 3.25, 2nd: 2.05, 3rd: 1.42, 4th: 1.00, 5th: 0.75) Fluid Specs Transmission Fluid Type: SAE 75W-90 Synthetic Gear Oil (API GL-4 or GL-5) Transmission Fluid Capacity: 1.7 Liters 📐 Dimensions Exterior Length: 4730 mm (186.2 in) Width: 1798 mm (70.8 in) Height: 1420 mm (55.9 in) Wheelbase: 2795 mm (110.0 in) Weights Curb Weight: Approx. 1670 kg (3682 lbs) Gross Vehicle Weight Rating: Approx. 2100 kg (4630 lbs) 🛡️ Safety Features Ratings Safety Features Note: While official crash test data from modern agencies is limited for this era, the E34 platform incorporated advanced safety features for its time. Active Features ABS: Standard Anti-lock Braking System (ABS) Passive Features Airbags: Driver-side airbag (standard for 1991 MY) Seatbelts: Three-point inertia-reel seatbelts with pretensioners Chassis Structure: Reinforced safety cage and crumple zones. 💡 Technology Features Infotainment Audio System: Original premium sound system (e.g., BMW Bavaria C Business Cassette with optional CD changer). Driver Assistance ABS: Standard Anti-lock Braking System (ABS) Connectivity Original Connectivity: N/A (pre-digital era automotive connectivity) 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 - 10,000 miles (12,000 - 16,000 km) or annually, whichever comes first. Spark Plug Replacement: Every 30,000 miles (48,000 km) for standard plugs, longer for specific performance plugs. Coolant Flush: Every 2-3 years or 30,000 miles. Brake Fluid Flush: Every 2 years. Fluid Specifications Coolant Type: BMW Blue Antifreeze/Coolant or equivalent (50/50 mix with distilled water) Brake Fluid Type: DOT 4 or DOT 5.1 Known Issues Common Wear Items: Eccentric shaft sensor seal (oil leak), intake manifold gaskets, VANOS seals (though VANOS is not present on the S38B36), flex discs, rear subframe bushings. Engine Specific Concerns: Timing chain guide wear, oil pump chain tensioner, potential...