🏷️ Basic Information Identification Make: BMW Model: 3 Series Sub Model: 325, 325e, 325es Year: 1985 Codes Chassis Code: E30 👋 Introduction Market Position Market Segment: Entry-level luxury sport sedan. Competed with Mercedes-Benz 190E, Audi 80/90, and other European and Japanese compact executive cars. Competitive Analysis Key Strengths: Excellent handling and driving dynamics (BMW's hallmark), rear-wheel-drive bias, solid build quality, and refined inline-six engines. Key Features Engine Lineup: Known for its smooth and torquey inline-six engines, particularly the M20 series. Design: Iconic E30 chassis design, considered a classic by many enthusiasts. Driving Experience: Praised for its balanced chassis, responsive steering, and engaging driving feel. 📋 Manual Details Coverage Areas Models Covered: BMW 325, 325e, 325es Model Years Covered: 1985 Page Count Estimated Page Count: Comprehensive (typical for this era's full service manuals, often 500+ pages) Manual Type Type: Full Service Repair Manual Language Language: English Format Format: Likely printed; digital versions (PDF) may exist for this title. 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed disassembly, assembly, inspection, and repair procedures for all engine components (pistons, rings, bearings, valves, camshafts, crankshaft, etc.). Includes timing belt/chain replacement, cylinder head service, and block machining specifications. Engine Fuel System: Bosch L-Jetronic fuel injection system diagnosis and repair, fuel pump, injectors, fuel pressure regulator, fuel filter replacement, and troubleshooting. Engine Ignition System: Ignition timing, spark plugs, ignition coils, distributor, ignition control module (if applicable), and troubleshooting. Cooling System: Radiator, water pump, thermostat, hoses, fan operation, and coolant specifications and flushing procedures. Exhaust System: Exhaust manifold, catalytic converter (if equipped), muffler, and pipe replacement and inspection. Transmission Manual: Service, repair, and overhaul procedures for Getrag 260 5-speed manual transmission. Clutch replacement, flywheel service, and gearbox fluid specifications. Transmission Automatic: Service, repair, and diagnosis for ZF 4HP22 automatic transmission (if applicable to specific models/trims). Transmission fluid and filter replacement, shift linkage adjustment. Drivetrain: Driveshaft, CV joints, differential (rear axle), axle shafts, and wheel bearing service. Suspension Front: McPherson strut, control arms, ball joints, sway bar, bushings, and alignment specifications. Suspension Rear: Trailing arms, shock absorbers, springs, bushings, and alignment specifications. Steering System: Power steering pump, steering rack, tie rods, steering column, and fluid specifications. Brake System Front: Front disc brakes, calipers, rotors, brake pads, and hydraulic lines. ABS system diagnosis (if equipped). Brake System Rear: Rear disc brakes, calipers, rotors, brake pads, and hydraulic lines. Parking brake mechanism. Electrical System Charging: Alternator, voltage regulator, battery, and wiring. Electrical System Starting: Starter motor, starter solenoid, and ignition switch. Electrical System Lighting: Headlights, taillights, interior lighting, fuses, relays, and wiring diagrams. Electrical System Accessories: Power windows, door locks, mirrors, horn, wipers, washers, and climate control systems. Body Exterior: Body panel removal and installation, doors, hood, trunk, bumpers, glass, seals, and alignment. Body Interior: Dashboard removal, instrument cluster, seats, upholstery, carpeting, and trim panels. HVAC System: Heater core, blower motor, A/C compressor, refrigerant lines, climate control panels, and servicing. Procedures Included Routine Maintenance: Oil and filter changes, air filter replacement, spark plug replacement, coolant flushes, fuel filter replacement, belt inspections and replacements. Troubleshooting: Diagnostic flowcharts and symptom-based troubleshooting for engine, electrical, and mechanical issues. Repair And Rebuild: Step-by-step instructions for component removal, disassembly, repair, reassembly, and installation. Component Replacement: Detailed guides for replacing common wear items and major components. Alignment And Adjustment: Wheel alignment specifications and adjustment procedures, clutch pedal adjustment, and idle speed adjustments. Wiring Diagrams: Comprehensive electrical wiring diagrams for all systems. Technical Depth Depth: Comprehensive, covering everything from basic scheduled maintenance to full engine and transmission rebuilds. Suitable for professional mechanics and experienced DIY enthusiasts. 📊 Manual Specifications File Format Digital Format: If digital, expect searchable PDF with clear diagrams and text. Likely OCR'd if not a natively digital product. Print Quality Print Quality: Typically high-quality reproductions with clear line drawings and diagrams. Paper quality is usually durable for workshop use. Binding Type Binding: Likely a robust binding (e.g., saddle-stitched or perfect bound for larger manuals) designed for workshop durability. Paper Type Paper Type: Durable paper stock, often with a matte finish to reduce glare in workshop lighting. ⚙️ Engine Specifications Primary Engine Engine Code: M20B27 Configuration: Inline 6-cylinder, SOHC Displacement: 2.7 Liters (2693 cc) Bore X Stroke: 84.0 mm x 81.0 mm Compression Ratio: 8.3:1 (for 325e) Performance Horsepower 325E: 121 hp @ 4800 rpm Torque 325E: 170 lb-ft @ 3250 rpm Horsepower 325Es: 121 hp @ 4800 rpm (often same base engine, 's' could denote sportier suspension/styling) Torque 325Es: 170 lb-ft @ 3250 rpm Engine Tuning Note: The M20B27 in the 'e' models was tuned for economy and low-end torque with a 'Lambda control' system and lower redline, often referred to as the 'eta' engine. Fuel System Fuel Injection: Bosch L-Jetronic (Motronic for some later models, but L-Jetronic is common for '85 models) Fuel Type: Unleaded gasoline Engine Management ECU: Bosch Motronic (likely ECU...