🏷️ Basic Information Identification Make: BMW Model: 325i Model Code: E30 Production Years: 1987-1991 Codes Engine Code: M20B27 (I6) 👋 Introduction Market Position Positioning: The BMW 3 Series (E30) established BMW's reputation for sporty, driver-focused sedans and coupes in the premium compact executive segment. The 325i was a highly sought-after performance variant. Competitive Analysis Competitors: Competed with Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, and various American luxury compacts of the era. Key Features Design Philosophy: Renowned for its balanced chassis, rear-wheel-drive dynamics, responsive steering, and build quality synonymous with BMW. Manual Value: Essential for owners and independent mechanics maintaining or restoring these classic BMWs, providing accurate procedures and specifications to preserve performance and originality. 📋 Manual Details Coverage Areas Coverage: All Models & Configurations within specified years Page Count Estimated Page Count: 600+ Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete overhaul, diagnostics, fuel injection, ignition, cooling, lubrication, exhaust Transmission: Manual and Automatic transmission overhaul, diagnostics, fluid service Drivetrain: Driveshafts, differential, rear axle, hub assembly, CV joints Suspension: Front struts, rear shocks, control arms, bushings, ball joints, steering linkage Brakes: Disc brake systems (front & rear), ABS diagnostics, brake fluid service, parking brake Steering: Power steering system, steering rack, tie rods, column Electrical System: Wiring diagrams, battery, alternator, starter, lighting, fuses, relays, instrumentation Body And Chassis: Body panel removal/installation, interior trim, glass, bumpers, rust repair, structural components HVAC: Heating, Ventilation, and Air Conditioning (HVAC) system troubleshooting and repair Fuel System: Fuel pump, injectors, fuel lines, EVAP system Procedures Included Maintenance: Oil changes, filter replacements, fluid checks & changes, belt replacement, spark plug replacement Troubleshooting: Diagnostic procedures for common and intermittent faults, fault code interpretation Repair: Step-by-step repair instructions for all major systems, component replacement Rebuilding: Engine and transmission rebuilding procedures, specifications, and torque values Adjustment: Valve adjustments, idle speed adjustments, timing adjustments Installation: Component installation, accessory installation Emissions Control: Information on emission control systems and their maintenance/troubleshooting. Chassis And Body: Detailed procedures for bodywork, including door, hood, trunk panel alignment, and interior trim removal. Technical Depth Depth: Comprehensive: Covers everything from basic scheduled maintenance to full engine and transmission rebuilds, including advanced electrical diagnostics. Wiring Diagrams: Includes comprehensive electrical wiring diagrams for all major systems, crucial for electrical fault finding. Torque Specifications: Provides specific torque values for all critical fasteners during engine, transmission, suspension, and brake component replacement. Manual Completeness Scope: Full workshop manual covering all aspects of repair and maintenance, not a condensed or partial guide. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content Print Quality Printability: Printable Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder, SOHC Displacement: 2.7 Liters (2693 cc) Bore X Stroke: 84.0 mm x 81.0 mm Compression Ratio: 8.5:1 (approx.) Performance Horsepower: 168 hp @ 5,500 rpm (US Spec) Torque: 223 lb-ft @ 3,250 rpm (US Spec) Fuel System Injection System: Bosch Motronic L-Jetronic fuel injection Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Cooling System Coolant Type: BMW Blue Antifreeze/Coolant (or equivalent silicate-free coolant) Coolant Capacity: Approx. 8.5 Liters (8.9 US Quarts) Lubrication System Oil Type: SAE 15W-40 or 20W-50 (depending on climate) - API SG or higher Oil Capacity: Approx. 4.5 Liters (4.8 US Quarts) with filter change Oil Filter Part Number: Mann-Filter W 940/5 or equivalent 🔧 Transmission Standard Type: Getrag 260 5-speed Manual Transmission Optional Type: ZF 4HP22 4-speed Automatic Transmission Features Manual Fluid Type: API GL-4 SAE 75W-90 Synthetic Gear Oil Automatic Fluid Type: ATF Dexron II or equivalent Clutch: Hydraulically actuated single dry plate clutch 📐 Dimensions Exterior Length: 170.5 inches (4331 mm) Width: 65.7 inches (1669 mm) Height: 55.1 inches (1400 mm) Wheelbase: 104.7 inches (2660 mm) Weights Curb Weight: 2,950 - 3,100 lbs (1340 - 1406 kg) depending on transmission Gross Vehicle Weight Rating: Approx. 4,000 lbs (1814 kg) 🛡️ Safety Features Ratings Crash Test History: E30 chassis received mixed results in contemporary crash testing. Manual provides information on safety systems and structural integrity. Active Features Brakes: Front ventilated discs, rear solid discs. Optional ABS (Anti-lock Braking System). Suspension: Independent front strut suspension, semi-trailing arm rear suspension for excellent handling and stability. Passive Features Seatbelts: 3-point inertia-reel seatbelts front and rear. Steering Column: Energy-absorbing steering column. 💡 Technology Features Infotainment Audio System: Factory cassette player with optional CD changer. Manual covers basic troubleshooting and speaker replacement. Driver Assistance ABS: Optional Anti-lock Braking System (ABS) with dedicated diagnostic procedures in the manual. Connectivity Diagnostics: On-board diagnostics system (OBD-I) with manual detailing connector locations and basic test procedures. 🔧 Maintenance Service Intervals Oil Change: Every 5,000 - 7,500 miles (8,000 - 12,000 km) or annually, whichever comes first. Monitor oil level frequently. Air Filter: Inspect every...