🏷️ Basic Information Identification Make: BMW Model: 5 Series Chassis Code: E34 Model Year Covered: 1991 Codes Oem Equivalent Part Number: Likely derived from BMW's official service literature, specific number not provided in product info. 👋 Introduction Market Position E34 Market Position: The E34 represented BMW's mid-size luxury sedan and touring segment, known for its driving dynamics, build quality, and technological advancements of the era. Competitive Analysis Contemporary Competitors: Mercedes-Benz W124 E-Class, Audi 100/200, Lexus LS400 (later in the E34's life), Volvo 900 series. Key Features E34 Design Philosophy: Evolved from the E28, the E34 featured sleeker aerodynamics, a refined interior, and a more robust chassis, continuing BMW's 'Ultimate Driving Machine' ethos. Key Features Manual Manual Value Proposition: Provides professional-level repair and maintenance information, crucial for maintaining the performance and longevity of a classic BMW. 📋 Manual Details Coverage Areas Major Topics Covered: Full service and repair instructions, all major topics. Target Audience: Mechanics, DIY enthusiasts Page Count Page Count: Not specified, but implied to be comprehensive for a workshop manual. Manual Type Manual Type: Service Repair Workshop Manual Language Language: English (assumed based on common market for this vehicle and product description) Format Format: Digital (likely PDF, as is common for online sales) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, diagnosis, timing components, lubrication, cooling systems. Engine Management Electronic: ECU diagnostics, sensor testing, fuel injection (Motronic), ignition system. Transmission Manual: Clutch, gearbox overhaul, shift mechanism, driveline components. Transmission Automatic: Torque converter, hydraulic control, valve body, electronic control unit (if applicable). Suspension And Steering: Front and rear suspension components, struts, shocks, control arms, power steering system, alignment. Brakes: Hydraulic system, ABS (Anti-lock Braking System), brake pad and rotor replacement, caliper service, fluid bleeding. Electrical System: Wiring diagrams, battery, alternator, starter, lighting, accessories, fuse box. Body And Chassis: Body panels, doors, windows, locks, interior trim, chassis frame. Heating And Air Conditioning: HVAC system components, refrigerant service (R12 likely), climate control. Fuel System: Fuel pump, injectors, lines, tank, emissions control. Procedures Included Preventative Maintenance: Oil changes, filter replacements, fluid checks, spark plug replacement, belt inspection. Diagnostic Procedures: Troubleshooting guides for common and uncommon issues, fault code reading (where applicable). Repair Procedures: Step-by-step instructions for component replacement and repair. Overhaul Procedures: Detailed instructions for complete engine and transmission rebuilds. Electrical Troubleshooting: Schematic interpretation, testing of circuits and components. Torque Specifications: Torque values for critical fasteners across all systems. Technical Depth Depth Of Coverage: Comprehensive, covering routine maintenance to complete engine and transmission overhauls. Diagnostic Capabilities: Advanced diagnostics for engine management, ABS, and potentially other electronic systems. Special Tools: Identification and use of BMW-specific tools required for certain procedures. 📊 Manual Specifications File Format File Format: PDF (assumed) Searchability: Likely text-searchable if it's a well-produced PDF. Print Quality Print Quality: Dependent on source, but generally expected to be clear for diagrams and text. Binding Type Binding Type: N/A (for digital format) Paper Type Paper Type: N/A (for digital format) ⚙️ Engine Specifications Primary Engine Engine Options 1991: While the E34 spanned multiple engines, a 1991 model year would typically feature inline-six engines like the M20 (2.0L, 2.5L) and the newer M50 (2.5L, 2.0L) with VANOS. V8 options (M60) were also introduced in later E34 years, possibly late 1991/early 1992 depending on market. The manual should cover these variants. Engine Displacement Common: 2.0L, 2.5L, 3.0L, 3.5L, 4.0L (depending on specific model and market) Engine Configuration: Inline-4 (rare for '91 5-series, usually E28), Inline-6, V8 Performance Horsepower Range: Approximately 129 hp (520i) to 315 hp (M5). Torque Range: Approximately 174 Nm (520i) to 470 Nm (M5). Fuel System Fuel Injection System: Bosch Motronic (various versions depending on engine, e.g., Motronic 1.3, 1.1, 3.1) Fuel Type: Unleaded gasoline (premium grade recommended) Fuel Pump Type: In-tank electric fuel pump 🔧 Transmission Standard Standard Transmission: 5-speed manual transmission (Getrag 260/5, 260/6) Optional Optional Transmission: 4-speed automatic transmission (ZF 4HP22, ZF 4HP24) Features Driveline: Rear-wheel drive (RWD) Clutch Type: Dry single-plate clutch (manual transmission) Transmission Fluid Manual: BMW MTF LT-2 or equivalent (e.g., Castrol SMX-S). Capacity: ~1.5-2.0 liters. Transmission Fluid Automatic: Dexron III or equivalent. Capacity: ~7-9 liters for overhaul, less for fluid change. 📐 Dimensions Exterior Wheelbase: 2761 mm (108.7 in) Length: 4730 mm (186.2 in) Width: 1751 mm (68.9 in) Height: 1410 mm (55.5 in) Weights Curb Weight: Approximately 1450-1600 kg (depending on engine and options). Gross Vehicle Weight Rating: Not specified, but typically around 2000-2100 kg. Wheels And Tires Standard Wheel Size: 15-inch alloy wheels Optional Wheel Size: 16-inch and 17-inch alloy wheels Wheel Bolt Pattern: 5x120 mm Standard Tire Size: 205/65R15, 225/55R15 🛡️ Safety Features Ratings NHTSA Crash Test Ratings: Data for 1991 models is limited for direct comparison to modern standards. However, the E34 was built with a strong safety cell and crumple zones. Active Features ABS: Standard on most models, optional on...