🏷️ Basic Information Identification Make: BMW Model: 325i Model Variant: 325 Year: 1992 Codes Chassis Code: E36 👋 Introduction Market Position Positioning: The BMW 3 Series (E36) was a pivotal model for BMW, solidifying its reputation for sporty luxury sedans and coupes in the compact executive segment. Competitive Analysis Competitors: Competed directly with the Mercedes-Benz C-Class (W202), Audi 80/90, and Lexus ES 300. Key Features Vehicle Highlights: Renowned for its balanced chassis, engaging driving dynamics, refined interior, and the introduction of significant safety advancements for its time. Manual Purpose Purpose: To provide comprehensive, expert guidance for servicing, repairing, and diagnosing the 1992 BMW 325i (E36). Manual Value Proposition Value: Essential tool for owners and technicians seeking accurate, detailed information to maintain peak performance and longevity of the vehicle. 📋 Manual Details Coverage Areas Engine: Yes Transmission: Yes Brakes: Yes Suspension: Yes Electrical System: Yes Bodywork: Yes Interior: Yes Climate Control: Yes Troubleshooting: Yes Wiring Diagrams: Yes Page Count Estimated Pages: 1000+ Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine (M50B25), Drivetrain, Exhaust System Chassis: Steering, Suspension (Front & Rear), Brakes (ABS included), Wheels & Tires Electrical: Ignition System, Charging System, Starting System, Lighting, Instrumentation, ECU Diagnostics, Body Electronics Comfort And Convenience: HVAC System, Power Accessories, Seat Adjustments, Interior Trim Procedures Included Maintenance: Oil Changes, Filter Replacements, Spark Plug Service, Fluid Checks & Changes, Belt Adjustments Repair: Engine Overhaul, Transmission Rebuild, Brake Component Replacement, Suspension Arm/Bush Replacement, Electrical Component Diagnosis & Repair Diagnostics: Troubleshooting charts, Fault code interpretation (where applicable for the era), Symptom-based diagnosis Disassembly And Assembly: Detailed step-by-step instructions with torque specifications for all major components Technical Depth Depth: Comprehensive (suitable for professional mechanics and advanced DIY enthusiasts) Information Granularity: Detailed specifications, torque values, component removal/installation procedures, diagnostic flowcharts 📊 Manual Specifications File Format Format Details: Likely a searchable PDF, allowing for quick text-based navigation. Potential for high-resolution scans of original printed pages. Print Quality Print Quality: If physical, expect professional printing. If digital, clarity of diagrams and text is paramount. Binding Type Binding: Not applicable for digital format, but original manuals typically featured robust binding for workshop use. Paper Type Paper Quality: Not applicable for digital format, but original manuals were printed on durable paper suitable for workshop environments. ⚙️ Engine Specifications Primary Engine Engine Code: M50B25 Engine Type: Inline 6-cylinder, Naturally Aspirated Displacement: 2.5 Liters (2494 cc) Bore X Stroke: 84 mm x 75 mm Compression Ratio: 8.8:1 Valve Train: DOHC, 4 valves per cylinder Performance Horsepower: 189 hp @ 5900 rpm Torque: 181 lb-ft @ 4200 rpm Fuel System Fuel Injection: Bosch Motronic Electronic Fuel Injection (EFI) Fuel Type: Unleaded Premium gasoline (91 octane or higher recommended) Engine Management Engine Control Unit: Motronic M3.3 🔧 Transmission Standard Transmission Type: 5-Speed Manual Optional Transmission Type: 4-Speed Automatic (Steptronic not available in '92 model year) Features Clutch Type: Hydraulic Actuated Single Dry Plate Clutch Final Drive Ratio: Typically 3.46:1 (manual), 3.23:1 or 3.15:1 (automatic, depending on production date/options) Fluid Specifications Manual Transmission Fluid: BMW MTF LT-2 or equivalent (GL-4 rated) Automatic Transmission Fluid: Dexron II or equivalent 📐 Dimensions Exterior Length: 174.5 inches (4432 mm) Width: 67.7 inches (1720 mm) Height: 55.1 inches (1400 mm) Wheelbase: 106.3 inches (2700 mm) Weights Curb Weight: Approximately 3200-3400 lbs (1450-1540 kg) Gross Vehicle Weight Rating: Approximately 4200 lbs (1905 kg) 🛡️ Safety Features Ratings NHTSA Front Impact: Not rated explicitly for 1992 model year, but generally performed well for its era. Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Optional (ASC or ASC+T) Passive Features Airbags: Driver-side airbag standard. Passenger airbag optional (typically on later E36 models). Seatbelts: 3-point inertia-reel seatbelts with pre-tensioners (front) Body Structure: Reinforced safety cell, crumple zones 💡 Technology Features Infotainment Audio System: Standard AM/FM cassette player with optional CD changer. Factory amplifier systems (e.g., Hi-Fi) were available. Driver Assistance Cruise Control: Standard on most models Check Control System: Integrated system monitoring lights, fluids, and other critical functions, displaying warnings on the dashboard. Connectivity Cellular Connectivity: Not applicable for this era. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500-10,000 miles or 12 months, whichever comes first (BMW's Condition Based Service system began to be implemented). Spark Plug Replacement: Every 30,000-60,000 miles depending on plug type (precious metal recommended). Coolant Flush: Every 2-3 years or 30,000 miles. Fluid Specifications Engine Oil Type: BMW High Performance SAE 5W-30 or 5W-40 synthetic oil (API SH or higher specification recommended). Engine Oil Capacity: 6.5 US quarts (6.2 liters) with filter change. Coolant Type: BMW Blue Antifreeze/Coolant (Ethylene Glycol based, 50/50 mix with distilled water). Brake Fluid Type: DOT 4 (or DOT 4 LV for improved low-temperature performance) Known Issues Common Problem 1: Cooling System: Plastic expansion tanks and water pumps can become brittle...