🏷️ Basic Information Identification Make: BMW Model: 325i Year: 1991 Chassis Code: E36 Generation Generation Name: E36 Generation Years: 1990-1999 (Europe), 1992-1998 (North America) Codes Engine Code Designation: M50B25 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe Target Audience: Enthusiasts, DIY mechanics, owners seeking to maintain and repair their E36 3 Series. Competitive Analysis Competitors 1991: Mercedes-Benz 190E, Audi 80/90, Lexus ES 250, Acura Legend, Infiniti M30. Key Features Driving Dynamics: Renowned for its balanced chassis, rear-wheel-drive dynamics, and engaging driving experience. Engine Philosophy: Smooth inline-six engines offering a blend of performance and refinement. Build Quality: Typical BMW build quality, emphasizing durability and premium feel. 📋 Manual Details Coverage Areas Coverage: Full Service, Repair, Rebuild, Refurbish, Restoration Page Count Estimated Page Count: ~1500-2000 (typical for comprehensive E36 manuals) Manual Type Type: Full Service & Repair Manual Language Language: English Format Format: Digital (likely PDF), potentially available in Print 📖 Manual Coverage Systems Covered Engine Mechanical: Engine removal/installation, cylinder head, block, crankshaft, pistons, connecting rods, timing system (chain, tensioners, guides), lubrication system (oil pump, oil pan), cooling system (radiator, water pump, thermostat) Engine Management: Fuel injection system (injectors, fuel pump, pressure regulator), ignition system (coil packs, spark plugs, sensors), ECU diagnosis and troubleshooting, exhaust system (catalytic converter, muffler) Transmission Drivetrain: Manual transmission (clutch, gear shift linkage, internal components), Automatic transmission (torque converter, valve body, gear sets, hydraulic controls), driveshafts, differential, CV joints Suspension Steering: Front suspension (struts, control arms, ball joints, sway bar), Rear suspension (multi-link independent, trailing arms, dampers, springs, sway bar), power steering system (pump, rack and pinion, fluid), wheel alignment specifications Brakes: Front and rear disc brakes (calipers, rotors, pads), ABS system (pump, sensors, control module), parking brake, brake fluid specifications and bleeding procedures Electrical System: Battery, alternator, starter motor, lighting system (headlights, taillights, interior), wiring diagrams, fuses, relays, control modules (DME, ABS, etc.), instrument cluster, switches HVAC: Air conditioning system (compressor, condenser, evaporator, refrigerant), heating system (heater core, blower motor), climate control panel, troubleshooting Body Interior: Body panel removal/installation, door mechanisms, window regulators, seats, dashboard, trim components, exterior lighting, bumpers Procedures Included Routine Maintenance: Oil and filter changes, air filter replacement, spark plug replacement, coolant flush, brake fluid flush, transmission fluid change, differential fluid change, fuel filter replacement Diagnostics Troubleshooting: Systematic diagnostic procedures for engine performance issues, electrical faults, brake problems, HVAC malfunctions, using diagnostic tools (e.g., OBD-I codes if applicable for the year, specific BMW diagnostic equipment) Major Repairs: Engine rebuilds (top-end, bottom-end), transmission overhaul, suspension component replacement, brake system repairs, electrical component replacement, fuel system repairs Restoration Refurbishment: Detailed instructions for disassembling and reassembling components, bodywork repair and refinishing guidance, interior refurbishment techniques Special Tools: Identification and usage instructions for specialized BMW tools required for specific procedures (e.g., valve spring compressors, timing tools, suspension bushings tools) Technical Depth Depth: Comprehensive, covering everything from basic DIY maintenance to advanced engine and transmission rebuilds. Includes detailed diagnostic information and electrical schematics. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) - typically searchable and printable. Print Quality Print Quality Assessment: High-resolution scans of original manufacturer or reputable third-party documentation, ensuring clarity of text, diagrams, and images. Binding Type Binding: Not applicable for digital format. For print versions, typically comb-bound, spiral-bound, or case-bound for durability in a workshop environment. Paper Type Paper Type: Not applicable for digital format. Original manuals often printed on durable, matte paper suitable for workshop conditions. ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder, DOHC, 24 valves Engine Code: M50B25 Displacement: 2494 cc (2.5 Liters) Performance Horsepower: 189 hp @ 5900 rpm (US spec, with dual VANOS on later M50 variants; 1991 likely has single VANOS or no VANOS depending on market and build date) Torque: 245 Nm (181 lb-ft) @ 4700 rpm (US spec) Fuel System Fuel Delivery: Bosch Motronic (likely Motronic 3.3 or similar) Fuel Injection Fuel Type: Unleaded Premium Gasoline (91+ Octane) Engine Management Ignition System: Distributorless Ignition System (DIS) with coil-on-plug or coil pack setup Cooling System Coolant Type: BMW Blue Antifreeze/Coolant or equivalent HOAT (Hybrid Organic Acid Technology) Coolant Capacity: Approx. 8.5 Liters (8.9 US Quarts) Lubrication System Oil Type: API SJ or higher, SAE 0W-40, 5W-30, 5W-40, 10W-30, 10W-40, 15W-40, 20W-50 (depending on climate and BMW recommendations, synthetic preferred) Oil Capacity: Approx. 6.5 Liters (6.9 US Quarts) with filter Oil Filter Part Number Example: Mann-Filter: W 940/5, Mahle: OC 202, Bosch: 0 986 452 028 🔧 Transmission Standard Type: 5-Speed Manual Getrag 260/5 Optional Type: 4-Speed Automatic ZF 4HP22 EH Features Manual Fluid Spec: BMW MTF LT-2 or Pentosin MTF 2 (GL-4/GL-5 specification, check manual for precise requirement) Automatic Fluid Spec: BMW ATF LT-3 or Dexron III/Mercon compatible (check manual for precise requirement) 📐 Dimensions Exterior Length: 4432 mm (174.5 in) Width: 1711 mm (67.4 in) Height: 1395 mm (55.0 in) Wheelbase: 2700 mm (106.3...