🏷️ Basic Information Identification Make: BMW Model: M5 Generation Code: E34 Year: 1991 Codes Chassis Code: E34 Engine Code Primary: S38B36 👋 Introduction Market Position Positioning: High-performance executive sedan targeting enthusiasts and discerning drivers. Manual Value Proposition: Provides detailed, specific information enabling owners and technicians to maintain and repair the vehicle to factory standards. Competitive Analysis Competitors Era: Competed with other high-performance sedans like the Mercedes-Benz 500E, Jaguar XJ-S, and high-spec versions of Audi and Lexus sedans. Key Features Vehicle Key Features: Powerful inline-six engine, sophisticated chassis, luxurious interior, exceptional driving dynamics. Manual Key Features: Vehicle-specific, factory-level detail, comprehensive system coverage, digital format flexibility. 📋 Manual Details Coverage Areas General Coverage: Comprehensive service and repair for all 1991 BMW M5 E34 models. Repair Scope: A-Z repairs, maintenance, diagnostics, and servicing. Page Count Estimated Page Count: Likely 1000+ pages (typical for full factory service manuals of this era, exact count not provided). Manual Type Type: Factory Service and Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, rebuild, lubrication, cooling system, fuel system, intake and exhaust systems. Engine Control: Engine management, ignition system, starting and charging systems, emission control systems. Transmission: Manual transmission (Getrag 280/6) service, overhaul, clutch service, automatic transmission (optional, though E34 M5 was manual-only, manual is covered extensively). Drivetrain: Driveshaft, differential, axle, suspension components, wheel bearings. Brakes: Brake system diagnosis and repair, hydraulic systems, ABS (Anti-lock Braking System), parking brake. Steering: Steering column, power steering system diagnosis and repair. Suspension: Front and rear suspension components, shock absorbers, springs, control arms, alignment specifications. Wheels Tires: Tire and wheel specifications, mounting, balancing. Electrical General: General electrical system troubleshooting, wiring harnesses, fuses, relays. Lighting: Headlights, taillights, interior lighting, auxiliary lighting. Instrumentation: Instrument panel components, gauges, warning lights. Climate Control: Air conditioning system service, diagnosis, and repair. Safety Restraints: Supplementary Restraint System (SRS) airbags, seat belt systems. Body Exterior: Engine hood, doors, body panels, glass, mirrors, exterior trim. Body Interior: Interior trim, seats, door panels, console components. Multiplex Communication: Multiplex wiring systems, CAN communication (early forms if applicable). Procedures Included Maintenance Procedures: Scheduled maintenance, oil changes, filter replacements, fluid checks, brake inspections, tune-ups. Diagnostic Procedures: Troubleshooting guides for various systems, fault code interpretation (if applicable), component testing. Repair Procedures: Detailed step-by-step instructions for component removal, installation, and overhaul. Installation Procedures: Installation of new components, accessories, and replacement parts. Adjustment Procedures: Adjustments for engine timing, idle speed, clutch linkage, etc. Wiring Schematics: Complete electrical wiring diagrams for all vehicle systems. Special Tool Usage: Identification and usage of special tools required for specific repairs. Technical Depth Depth: Factory-level detail, covering basic maintenance to complete engine and transmission rebuilds, advanced diagnostics. Illustrations: Abundant diagrams, line drawings, and illustrations for clarity. Step By Step: Complete step-by-step instructions for all procedures. 📊 Manual Specifications File Format Compatibility: Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac compatible. Requirements: Adobe PDF Reader and Winzip (free online). Print Quality Printability: All pages are printable, allows for enlarged copies of diagrams. Searchability: Implied searchable text within the PDF format. Binding Type Binding: Digital (PDF) - no physical binding. Paper Type Paper Type Analogy: Digital format eliminates the need for paper, preventing grease and tears. ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline-6 Engine Code: S38B36 Displacement: 3.6 Liters (3535 cc) Bore X Stroke: 94.4 mm x 86.0 mm Compression Ratio: 10.0:1 Valvetrain: DOHC, 24 Valves (4 per cylinder), Double VANOS (later models, check for specific 1991 model year implementation) Performance Horsepower Hp: 315 hp @ 6,900 rpm Torque Lb Ft: 266 lb-ft @ 4,750 rpm Fuel System Fuel Delivery: Bosch Motronic M3.1 Fuel Injection (Sequential) Fuel Type: Premium Unleaded Gasoline (91+ Octane) Cooling Cooling System: Liquid-Cooled, Thermostatically Controlled Fan, Expansion Tank 🔧 Transmission Standard Type: Getrag 280/6 Manual Transmission Gears: 6-Speed Manual Clutch Type: Hydraulically Actuated Single Dry Plate Clutch Optional Type: N/A for 1991 M5 E34 (exclusively manual) Features Rear Differential: Limited-Slip Differential (LSD) 📐 Dimensions Exterior Length: Approx. 4,710 mm (185.4 in) Width: Approx. 1,750 mm (68.9 in) Height: Approx. 1,420 mm (55.9 in) Wheelbase: Approx. 2,760 mm (108.7 in) Front Track: Approx. 1,475 mm (58.1 in) Rear Track: Approx. 1,495 mm (58.9 in) Weights Curb Weight: Approx. 1,700 kg (3,748 lbs) Gross Vehicle Weight Rating: Approx. 2,150 kg (4,740 lbs) Wheel Bolt Pattern: 5 x 120 mm Wheel Size: 17 x 7.5J (standard) Tire Size: 235/45ZR17 (standard) 🛡️ Safety Features Ratings Crash Test Data: No specific official ratings for 1991 available from modern agencies, but built to high standards for its era. Active Features ABS: Yes (Bosch ABS III) Traction Control: No (ASC+T was introduced later on BMW models) Passive Features Airbags: Driver's side airbag standard. Seat Belts: Front and rear seat belts, pretensioners for front seats. Body Structure: Reinforced safety cage, crumple zones....