🏷️ Basic Information Identification Make: BMW Model: 3 Series Chassis Code: E30 Product Name: BMW 3 Series (E30) 318i, 325, 325e, 325es, 325i, 325is, 325 Convertible Workshop Service Repair Manual Generation Production Years: 1984-1990 Codes Engine Codes Covered: M10B18 (318i), M20B25 (325i/is), M20B27 (325e/es) 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe/Convertible Competitive Analysis Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Ford Sierra, Volvo 240/740 Key Features Design Philosophy: The E30 represented BMW's focus on driving dynamics, sporty handling, and solid build quality in a compact package. Manual Utility: Provides essential repair and maintenance information for owners and mechanics, enabling cost-effective upkeep and accurate repairs. 📋 Manual Details Coverage Areas Models Covered: 318i, 325, 325e, 325es, 325i, 325is, 325 Convertible Page Count Total Pages: 550+ Manual Type Type: Workshop Service Repair Manual Language Language: English Format File Format: PDF Digital Delivery: Instant Download Device Compatibility: iPad-ready, PC (Windows), Mac, Linux 📖 Manual Coverage Systems Covered Engine: Engine Mechanical, Engine Coolant, Engine Control System, Fuel System, Ignition System, Starting System, Charging System, Lubrication System, Cooling System Transmission: Manual Transaxle System, Automatic Transmission (implied by model variants), Torque Converter Clutch Brakes: Brake System, Brake Master Cylinder, Brake Booster, Brake Fluid, Brake Actuator, Parking Brake Suspension Steering: Front Suspension System, Rear Suspension System, Steering System, Power Steering, Wheel Alignment Electrical: Electrical System, Wiring Diagrams, Combination Meter, Lighting System, Wiper And Washer System, Power Window Control System, Power Mirror Control System, Power Door Lock Control System Body Chassis: Body Repair, Sun Roof System, Convertible Top System (implied for convertible models), Interior Trim, Exterior Trim Safety: Supplemental Restraint System (SRS), Seat Belt, Air Bag Systems (Seat, Passenger, Side, Center Sensors) Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, inspections Repair: Complete disassembly and reassembly of all major vehicle components Troubleshooting: Diagnostic procedures, common fault identification, electrical system troubleshooting Diagnostics: Detailed diagnostic steps for various systems Technical Depth Depth: Comprehensive, covering everything from basic maintenance to full engine rebuilds and electrical system diagnostics. User Base: Suitable for both DIY enthusiasts and experienced professional mechanics 📊 Manual Specifications File Format Searchability: Searchable PDF Bookmarking: Bookmarked for easy navigation Print Quality Printability: All pages printable Binding Type Binding: Digital (PDF) Paper Type Paper Type: N/A (Digital PDF) Protection Drm: DRM-free Completeness Integrity: 100% complete and intact, no missing/corrupt pages ⚙️ Engine Specifications Primary Engine 318I Engine: M10B18 1.8L Inline-4 318I Power: Approx. 105 hp @ 5800 rpm 318I Torque: Approx. 107 lb-ft @ 3250 rpm 325E Engine: M20B27 2.7L Inline-6 (Eta - Economy) 325E Power: Approx. 121 hp @ 4800 rpm 325E Torque: Approx. 170 lb-ft @ 3250 rpm 325I Engine: M20B25 2.5L Inline-6 325I Power: Approx. 168 hp @ 5800 rpm 325I Torque: Approx. 164 lb-ft @ 4300 rpm Performance Engines Technology: Fuel injection (Bosch L-Jetronic or Motronic variants), overhead camshaft (OHC) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) 🔧 Transmission Standard Standard Transmission: 4-speed or 5-speed manual transmission (depending on model and year) Optional Optional Transmission: 3-speed or 4-speed automatic transmission Features Clutch System: Hydraulically operated single dry plate clutch 📐 Dimensions Exterior Body Styles: 2-door Sedan, 4-door Sedan, 2-door Convertible, (some markets had a 2-door Coupe, often referred to as 'Touring Wagon' in enthusiast circles but officially a hatch/estate variation in later E30s) Weights Curb Weight Range: Approx. 2,500 - 3,000 lbs (1134 - 1361 kg) depending on model and body style. 🛡️ Safety Features Ratings Crash Safety: E30 chassis was known for its robust unibody construction for its era, though specific crash test ratings from modern standards are not directly applicable. BMW's safety focus included crumple zones. Active Features Active Safety: Optional ABS (Anti-lock Braking System) on some models, particularly later M20 engine variants. Passive Features Passive Safety: Seat belts (front and rear), energy-absorbing steering column, reinforced A-pillars and B-pillars. 💡 Technology Features Infotainment Infotainment System: Basic analog radio systems, optional cassette player. Limited by era, no digital displays or advanced audio features typical of modern vehicles. Driver Assistance Driver Assistance Features: ABS (optional), power steering. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500 - 10,000 miles or 12 months, but consult manual for specific recommendations based on driving conditions. Fluid Specifications Engine Oil Type: Refer to manual, commonly 10W-40 or 15W-50 synthetic or semi-synthetic oils for M10/M20 engines, with specific viscosity depending on climate. Example: Castrol GTX 10W-40. Coolant Type: Ethylene glycol based coolant, typically a 50/50 mix with distilled water. BMW Blue or G48 coolant recommended. Capacity approx. 7-8 liters. Brake Fluid Type: DOT 3 or DOT 4 brake fluid. Manual Transmission Fluid Type: GL-4 gear oil, typically 75W-90. Example: Red Line MT-90. Automatic Transmission Fluid Type: Dexron II or Dexron III ATF (Automatic Transmission Fluid). Known Issues Common Problems: Headliner sagging, front strut mount failure, fuel distributor issues (M10), idle control valve issues, coolant system leaks...