🏷️ Basic Information Identification Make: BMW Model: 3 Series Sub Models: 325, 325e, 325es Year: 1984 Codes Chassis Code: E30 👋 Introduction Market Position Vehicle Segment: Compact Executive Sedan/Coupe Competitive Analysis Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo Alfetta, Volvo 240 Key Features Driving Dynamics: Renowned for its balanced chassis, rear-wheel drive, and engaging driving experience. Engine Type: Inline-6 cylinder, known for smoothness and durability. Manual Value Target Audience: BMW enthusiasts, DIY mechanics, restoration specialists, classic car owners. Benefit Statement: Provides the essential knowledge and procedures to maintain, repair, and restore the BMW E30 325, 325e, and 325es to peak condition. 📋 Manual Details Coverage Areas Technical Coverage: Complete mechanical and electrical systems repair and maintenance. Page Count Estimated Pages: 1000+ Manual Type Type: Full Service and Repair Manual Language Language: English Format Format: Digital (likely PDF), potentially printable 📖 Manual Coverage Systems Covered Engine: M20 6-cylinder (2.7L M20B27 for 'e'/'es' models), including fuel injection, ignition, cooling, lubrication, emissions control. Transmission: Manual (Getrag 260) and Automatic (ZF 4HP22) transmissions, including overhaul and adjustments. Drivetrain: Clutch, driveshaft, differential, axles, wheel bearings. Suspension: Front and rear suspension systems, shock absorbers, springs, control arms, bushings. Brakes: Front discs, rear drums (standard on 325e/es), ABS (optional on some models), hydraulic system, parking brake. Steering: Power steering system, steering rack, steering column. Electrical: Battery, charging system (alternator), starting system (starter), lighting, ignition system, fuse box, relays, wiring diagrams. Body: Body panels, doors, hood, trunk, glass, seals, interior trim, chassis repair. Heating And Cooling: HVAC system, heater core, A/C system (if equipped), blower motor. Fuel System: Fuel tank, fuel pump, fuel injectors, fuel lines, fuel pressure regulator. Procedures Included Maintenance: Oil changes, filter replacements, coolant flushes, spark plug replacement, belt adjustments, brake fluid changes. Troubleshooting: Diagnostic procedures for common and complex issues, symptom-based troubleshooting guides. Repair: Engine overhaul, transmission rebuild, brake caliper replacement, suspension component repair, electrical component diagnosis and repair. Rebuilding: Detailed instructions for rebuilding engine components, transmissions, and other major assemblies. Restoration: Guidance on refurbishing and restoring various parts of the vehicle. Technical Depth Depth: Comprehensive, covering from basic routine maintenance to complete engine and transmission rebuilds. Diagnostics: In-depth diagnostic procedures, including electrical system testing and component identification. Specifications: Detailed torque specifications, clearances, fluid capacities, and electrical data. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Print Quality Readability: High-resolution scans for clear text and diagrams. Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: M20B27 Displacement: 2693 cc (2.7 Liters) Configuration: Inline 6-cylinder, SOHC Bore X Stroke: 84.0 mm x 81.0 mm Compression Ratio: 8.5:1 (325e/es) Performance Horsepower: 121 hp @ 4800 rpm (325e); 124 hp @ 4800 rpm (325es) Torque: 170 lb-ft @ 3250 rpm (325e); 170 lb-ft @ 3250 rpm (325es) Fuel System Fuel Delivery: Bosch L-Jetronic or Motronic electronic fuel injection. Fuel Type: Unleaded Gasoline Cooling System Coolant Type: BMW recommends ethylene glycol-based coolant with corrosion inhibitors (e.g., G48). Lubrication System Oil Type: SAE 10W-40 or 15W-40 API SF/SG rated oil. Engine Management Ignition System: Distributor-based electronic ignition. 🔧 Transmission Standard Type 325E 325Es: 4-speed Automatic (ZF 4HP22) Optional Type 325E 325Es: 5-speed Manual (Getrag 260) Features Manual Clutch: Hydraulically actuated single-plate dry clutch. Fluid Specs Automatic Automatic Transmission Fluid: Dexron III or equivalent ATF (refer to manual for specific BMW specification). Fluid Specs Manual Manual Transmission Fluid: API GL-4, SAE 75W-90 synthetic gear oil. 📐 Dimensions Exterior Length: 170.5 inches (4330 mm) Width: 65.7 inches (1670 mm) Height: 54.9 inches (1395 mm) Wheelbase: 104.3 inches (2650 mm) Weights Curb Weight Est: 2800-3000 lbs (1270-1360 kg) Gross Vehicle Weight Rating Est: 3700-3900 lbs (1680-1770 kg) 🛡️ Safety Features Ratings NHTSA Rating: Not comprehensively rated by modern standards, but known for robust build quality for its era. Active Features ABS: Optional on some models, particularly later production 325es and 325i variants. Passive Features Seatbelts: Three-point front seatbelts, two-point rear seatbelts (standard). Body Structure: Integrated safety cage and crumple zones. 💡 Technology Features Infotainment Audio System: Optional cassette radio with AM/FM, often with Blaupunkt or Becker units. Speaker count varied by trim. Driver Assistance Cruise Control: Optional feature on most models. Connectivity Ancillary Systems: Basic electrical systems, power windows (optional), power mirrors (optional), central locking (optional). 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000-7,500 miles (8,000-12,000 km) or 6-12 months, depending on driving conditions and oil type. Air Filter Replacement: Every 15,000-20,000 miles (24,000-32,000 km). Spark Plug Replacement: Every 30,000 miles (48,000 km) with appropriate plugs (e.g., Bosch W8DP). Refer to manual for specific type. Timing Belt Replacement: Crucial maintenance item: every 40,000-50,000 miles (64,000-80,000 km) or 4-5 years due to potential catastrophic engine failure if it breaks. Fluid Specifications Coolant Capacity: Approx. 9.5 Quarts (9.0 Liters) Brake Fluid Type: DOT 3 or DOT 4, low-viscosity. Power...