🏷️ Basic Information Identification Make: BMW Model: 325i / 325is Year: 1989 Generation Chassis Code: E30 Codes Engine Code General: M20 📋 Manual Details Coverage Areas Maintenance: Scheduled maintenance, routine checks Engine Mechanical: Engine assembly, disassembly, rebuilding, timing Fuel System: Fuel injection, pumps, lines, injectors Ignition System: Spark plugs, coils, distributor, ignition timing Cooling System: Radiator, water pump, thermostat, hoses Exhaust System: Manifolds, catalytic converter, mufflers Transmission Manual: Clutch, gearbox, linkages Transmission Automatic: Automatic transmission service and repair Drivetrain: Driveshaft, differential, axles Suspension: Shocks, struts, springs, bushings Steering: Steering rack, power steering system Brakes: Brake pads, rotors, calipers, master cylinder, ABS (if equipped) Electrical System: Battery, alternator, starter, wiring diagrams Lighting: Headlights, taillights, interior lights Climate Control: HVAC system, A/C service Body And Chassis: Body panels, doors, windows, interior trim Troubleshooting: Diagnostic procedures for common problems Restoration: Refurbishment and restoration guidance Page Count Pages: Unknown (described as 'very detailed') Manual Type Type: Service and Repair Manual Language Language: English ⚙️ Engine Specifications Primary Engine Engine Type: Inline-6 Displacement: 2.5 Liters (2494 cc) Engine Code: M20B25 Bore X Stroke: 84 mm x 75 mm Compression Ratio: 8.8:1 Valvetrain: SOHC (Single Overhead Camshaft), 12 valves (2 valves per cylinder) Performance Horsepower Est: 168 hp @ 5800 rpm Torque Est: 164 lb-ft @ 4300 rpm Fuel System Fuel Delivery: Bosch Motronic Fuel Injection Fuel Type: Unleaded Gasoline 🔧 Transmission Standard Type: Getrag 260 5-speed Manual Optional Type: ZF 4HP22 4-speed Automatic Features Clutch: Hydraulically actuated single dry plate 📐 Dimensions Exterior Length: Approx. 170.5 in (4331 mm) Width: Approx. 66.7 in (1694 mm) Height: Approx. 54.7 in (1390 mm) Wheelbase: Approx. 101.2 in (2570 mm) Weights Curb Weight Est: Approx. 2900 - 3100 lbs (1315 - 1406 kg) 🛡️ Safety Features Ratings Crash Test Ratings: Not available or comparable to modern standards Features Seatbelts: 3-point front seatbelts, rear lap belts ABS: Available on some models (Anti-lock Braking System) Airbags: Not equipped with airbags as standard 🔧 Maintenance Service Intervals Oil Change Interval: Consult manual for specific interval, typically 3,000-5,000 miles or 6 months Spark Plug Replacement: Consult manual for specific interval Timing Belt Replacement: Consult manual for specific interval (critical maintenance item) Fluid Specifications Engine Oil Type: Refer to manual for specific viscosity (e.g., 10W-40, 15W-50 common for the era) Coolant Type: Ethylene Glycol based antifreeze Brake Fluid Type: DOT 3 or DOT 4 Transmission Fluid Manual: GL-4 Gear Oil (e.g., 75W-90) Transmission Fluid Automatic: Dexron III (or equivalent) Power Steering Fluid: ATF (Automatic Transmission Fluid)