🏷️ Basic Information Identification Make: BMW Model: 325i Model Designation: E30 Chassis Code: E30 Product Name: BMW 325i 1987-1991 Full Service Repair Manual Generation Generation Code: E30 Codes Engine Codes Covered: M20B25 👋 Introduction Market Position Market Positioning: The E30 325i was positioned as a sporty, premium compact executive car, known for its driving dynamics and build quality. Competitive Analysis Key Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Ford Sierra XR4i, Volvo 240 Key Features Driving Dynamics: Renowned for its balanced chassis, rear-wheel-drive layout, and engaging steering. Engine Performance: The M20 inline-six engine offered a smooth power delivery and a characteristic BMW sound. Build Quality: Exceptional build quality and durability, characteristic of BMW vehicles from this era. Manual Value Proposition Target Audience: DIY mechanics, BMW enthusiasts, restoration specialists, and professional workshops. 📋 Manual Details Coverage Areas Years Covered: 1987, 1988, 1989, 1990, 1991 Body Styles Covered: Sedan, Coupe, Convertible, Touring (Wagon) Regions Of Operation Covered: Global (primarily North American and European specifications) Page Count Estimated Page Count: 800+ Manual Type Manual Type: Full Service Repair Manual Manual Subtype: Factory-level Workshop Manual Language Language: English Format Format: Digital (PDF) File Type: Searchable PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Full overhaul, diagnostics, repair, components (cylinder head, block, pistons, crankshaft, camshaft, timing) Engine Electrical: Ignition system, fuel injection system (Bosch Motronic), starting system, charging system, sensors, ECU diagnostics Fuel System: Fuel pump, injectors, fuel lines, fuel pressure regulator, fuel filter replacement Cooling System: Radiator, water pump, thermostat, coolant hoses, fan clutch, bleeding procedures Exhaust System: Manifolds, catalytic converter, mufflers, exhaust pipes, oxygen sensors Transmission Manual: Clutch assembly, gearbox overhaul, shift linkage, fluid changes Transmission Automatic: Gearbox diagnostics, fluid changes, seal replacement, torque converter Drivetrain: Driveshafts, universal joints, differential, axle shafts, wheel bearings Suspension Front: McPherson struts, control arms, ball joints, tie rods, sway bar, bushings Suspension Rear: Trailing arms, shock absorbers, springs, control arms, bushings Steering System: Power steering pump, steering rack, tie rods, steering column, fluid service Brake System: Front discs, rear discs (or drums on some early models), calipers, master cylinder, ABS (where equipped), brake fluid flushing Electrical System: Wiring diagrams, fuses, relays, lighting, horn, wipers, power windows, central locking Climate Control: HVAC system, blower motor, heater core, A/C system (refrigerant handling with caution), controls Body And Interior: Door panels, dashboard, seating, trim, exterior body panels, glass replacement Paint And Corrosion: Information on prevention and repair, though detailed bodywork is less emphasized than mechanicals Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug replacement, coolant flushes, brake fluid changes, transmission fluid changes Troubleshooting Guides: Diagnostic flowcharts, common fault finding for various systems Component Replacement: Step-by-step guides for major component removals and installations Rebuild Procedures: Detailed rebuild instructions for engines, transmissions, and other major units Electrical Diagnostics: Using multimeters, testing sensors, interpreting wiring diagrams Suspension Alignment: Specifications for camber, caster, toe, and procedures for adjustment Wheel And Tire Service: Mounting, balancing, rotation, specifications Technical Depth Depth Of Coverage: Comprehensive: from basic maintenance to full engine and transmission rebuilds Diagnostic Capabilities: Detailed explanation of diagnostic codes and procedures for the Motronic system Technical Diagrams: Includes exploded views, schematics, and detailed illustrations 📊 Manual Specifications File Format File Format: PDF Searchability: Full text searchable Printability: Printable pages Print Quality Image Resolution: High-resolution scans for clarity of diagrams and text Binding Type Binding Type: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code: M20B25 Engine Type: Inline 6-cylinder, SOHC (Single Overhead Camshaft) Displacement: 2494 cc (2.5 Liters) Performance Horsepower Std E: 168 hp @ 5800 rpm Torque Std E: 224 Nm (165 lb-ft) @ 4500 rpm Redline: 6500 rpm Fuel System Fuel Injection: Bosch Motronic ML-Jetronic Fuel Type: Unleaded gasoline (Premium recommended) Cooling System Coolant Type: BMW Antifreeze/Coolant (or equivalent ethylene glycol based, silicate-free) Oil System Oil Capacity: 4.5 Liters (4.8 US Quarts) with filter change Recommended Oil Viscosity: 10W-40, 15W-50 (depending on climate, consult manual) Ignition System Spark Plugs: Bosch W8AC or equivalent (check specific service bulletins) 🔧 Transmission Standard Standard Transmission: Getrag 260 5-speed manual transmission Optional Optional Transmission: ZF 4HP22 4-speed automatic transmission Features Transmission Fluid Manual: BMW ATF Dexron II (or equivalent) Transmission Fluid Automatic: BMW ATF Dexron II (or equivalent) Clutch Type: Hydraulically operated single dry plate clutch Rear Axle Ratio: 3.64:1 (common for manual, variations may exist) 📐 Dimensions Exterior Wheelbase: 2565 mm (101 inches) Length: 4340 mm (170.9 inches) Width: 1674 mm (65.9 inches) Height: 1370 mm (53.9 inches) Wheel Bolt Pattern: 5x120 mm Tire Size Standard: 205/55 VR 15 (common for 325i, check VIN for specifics) Weights Curb Weight Manual: Approx. 1300 kg (2866 lbs) Curb Weight Automatic: Approx. 1340 kg (2954 lbs) 🛡️ Safety Features Ratings Crash Test Information: Specific NHTSA/Euro NCAP ratings for this era are less comprehensive than modern vehicles; however, E30s...