🏷️ Basic Information Identification Make: BMW Model: 3 Series Specific Model: 318i Chassis Code: E30 Generation Generation Designation: E30 Production Start Year: 1983 Production End Year: 1991 Codes Engine Code Series: M10 (later M40 for some markets) 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, professional BMW technicians seeking a cost-effective official resource. Competitive Analysis Value Proposition: Provides official dealer-level information at a fraction of the cost of proprietary diagnostic software or dealership service fees. Key Features Diagnostic Capability: Includes electrical diagrams and troubleshooting procedures essential for diagnosing complex issues common in this era of automotive electronics. Completeness: Covers all major mechanical, electrical, and body systems for a complete service and repair experience. 📋 Manual Details Coverage Areas Covered Model Years: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991 Covered Models: BMW 318i, and implicitly related 316/316i models due to shared platform and many common procedures. Page Count Estimated Page Count: Hundreds (specific count not provided, but indicative of comprehensive coverage) Manual Type Type: Official Full Service Manual / Repair Manual / Workshop Manual (FSM) Language Language: English (assumed based on common availability for this market) Format Format: Printable (digital download for printing) 📖 Manual Coverage Systems Covered Powertrain: Engine (M10/M40), Cooling, Fuel and Emissions, Transaxle (Manual & Automatic options implied) Chassis: Steering, Suspension, Brakes (including ABS) Electrical: Engine Electrical, Body Electrical, Wiring Diagrams Body And Comfort: Body, Heating, Ventilation and Air Conditioning (HVAC), Restraints (Airbags/Seatbelts as applicable) Procedures Included Maintenance: Routine maintenance, fluid checks, filter changes, lubrication Repair Rebuild: Engine rebuild, transmission overhaul, component replacement, complete disassembly and reassembly Diagnostics: Troubleshooting guides, fault finding, diagnostic procedures Electrical Service: Wiring harness repair, component testing, electrical system troubleshooting, starter, alternator, ignition system Technical Depth Depth: Comprehensive: From basic adjustments and fluid changes to complete engine, transmission, and driveline overhauls. Includes detailed diagnostic flowcharts and wiring diagrams. 📊 Manual Specifications File Format Digital Format: Likely PDF, optimized for printing Print Quality Printability: High quality, allowing for selective or full printing of hundreds of pages. Binding Type Binding Recommendation: Spiral binding recommended for lay-flat use in workshop environments. Paper Type Paper Recommendation: Durable, slightly heavier paper stock recommended for workshop use. ⚙️ Engine Specifications Primary Engine Engine Type: Inline-4 Cylinder, 4-stroke Engine Displacement Liters: 1.8 L (1766 cc for M10, 1796 cc for M40) Engine Code M10: M10B18 Engine Code M40: M40B18 (introduced later in the production run) Performance Horsepower M10: Approx. 99-105 PS (metric horsepower) Torque M10: Approx. 140-145 Nm Horsepower M40: Approx. 102-105 PS Torque M40: Approx. 142-148 Nm Fuel System Fuel Delivery: Bosch L-Jetronic or Motronic fuel injection Fuel Type: Unleaded gasoline (premium recommended) 🔧 Transmission Standard Transmission Type Standard: 4-speed manual transmission Optional Transmission Type Optional: 3-speed or 4-speed automatic transmission (depending on market and specific model year) Features Drivetrain: Rear-wheel drive (RWD) 📐 Dimensions Exterior Body Styles: 2-door sedan (E30), 4-door sedan (E30), Convertible (E30), Touring (E30 - less common for 318i) Wheelbase Mm: Approximately 2565 mm (E30 chassis) Weights Curb Weight Kg: Approximately 1150-1250 kg (depending on body style and transmission) 🛡️ Safety Features Ratings Crash Testing: Not extensively rated by modern standards, but known for robust chassis construction for its era. Active Features Braking System: Front disc brakes, rear drum brakes (early models); Front and rear disc brakes on later models. ABS optional on some models. Passive Features Restraint System: Seat belts (front and rear), reinforced safety cage structure. Airbags were not standard on most E30 models, but could be found on very late production variants or as optional equipment. 💡 Technology Features Infotainment Audio System: Factory-installed AM/FM radio with cassette player. Optional premium sound systems. Often upgraded by owners. Driver Assistance ABS: Anti-lock Braking System (ABS) was an optional feature on many models, particularly later E30s. Connectivity Early Electronics: Basic on-board computer (check control system) may be present on higher trim levels, displaying fluid levels, bulb failures, and basic vehicle status. No modern connectivity features. 🔧 Maintenance Service Intervals Oil Change Interval Km: Typically 5,000 - 10,000 km or every 6-12 months, depending on driving conditions and oil type used. Spark Plug Replacement Km: Approximately 30,000 - 50,000 km (depending on plug type, e.g., copper vs. platinum) Timing Belt Replacement Km: Not applicable for M10 (chain-driven); Check M40 (belt-driven) intervals, typically around 60,000 - 80,000 km or 4-5 years. Fluid Specifications Engine Oil Type M10: API SG or SH, SAE 20W-50 or 10W-40 recommended (refer to manual for exact BMW specifications). Coolant Type: BMW blue coolant (G48) or equivalent ethylene glycol-based coolant with corrosion inhibitors, mixed 50/50 with distilled water. Transmission Fluid Manual: GL-4 Gear Oil, SAE 75W-90 or 80W-90 (check manual for specific BMW fluid part numbers). Transmission Fluid Automatic: Dexron III ATF or equivalent (refer to manual for exact BMW specifications). Brake Fluid Type: DOT 3 or DOT 4...