🏷️ Basic Information Identification Make: BMW Model: 325, 325e, 325es Year: 1990 Codes Chassis Code: E30 👋 Introduction Market Position Target Audience: BMW E30 owners seeking to perform their own maintenance, repairs, or restoration; independent repair shops specializing in BMW vehicles. Competitive Analysis Value Proposition: Provides comprehensive, in-depth technical information typically found in official BMW workshop manuals, enabling significant cost savings on repairs and maintenance. Key Features Completeness: Covers all essential aspects of vehicle repair and maintenance, from basic tune-ups to complex overhauls. Diagrams And Illustrations: Contains detailed exploded diagrams, wiring schematics, and procedural illustrations to aid understanding. Troubleshooting Guidance: Offers structured troubleshooting trees to efficiently diagnose issues. 📋 Manual Details Coverage Areas Manual Type: Full Service & Repair Manual Language: English Format: Digital (assumed PDF based on typical offerings) Page Count Estimated Page Count: Likely over 1000 pages (typical for comprehensive service manuals covering multiple models/engines). 📖 Manual Coverage Systems Covered Engine: Detailed overhaul, tuning, emissions control, cooling system, lubrication system, fuel system (including Bosch L-Jetronic and Motronic). Transmission: Manual (Getrag 260) and Automatic (ZF 4HP22) transmission removal, installation, internal repair, and fluid specifications. Drivetrain: Driveshaft, differential, rear axle, clutch assembly, and related components. Suspension: Front and rear suspension, shock absorbers, springs, control arms, ball joints, bushings, wheel bearings, and alignment procedures. Steering: Power steering system diagnosis and repair, steering rack, tie rods, and steering column. Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System) diagnosis and repair, brake fluid specifications, master cylinder, and brake lines. Electrical: Complete wiring diagrams, starter motor, alternator, battery, ignition system, lighting, gauges, accessories, fuses, relays, and diagnostic troubleshooting. Bodywork: Exterior body panels, doors, hood, trunk, bumpers, glass, interior trim, and seat adjustments. Heating And Air Conditioning: HVAC system components, refrigerant, compressor, blower motor, and climate control panel. Procedures Included Maintenance: Routine maintenance, oil changes, filter replacements, spark plug service, coolant flushes, and belt inspections. Troubleshooting: Diagnostic charts and flowcharts for identifying and resolving common problems across all major systems. Repair: Step-by-step instructions for component removal, repair, and reinstallation, including torque specifications and clearances. Rebuild: Detailed procedures for engine and transmission rebuilds, including component specifications and tolerances. Diagnostics: Advanced diagnostic techniques for electrical systems, fuel injection, and emission control systems. Technical Depth Depth: Comprehensive coverage suitable for both DIY enthusiasts and professional mechanics, including detailed technical data, diagrams, and specifications. 📊 Manual Specifications File Format Digital Format: PDF Searchable Text: Yes (typical for quality digital manuals) Printable: Yes Print Quality Diagram Clarity: High (expected for professional service manuals) Image Resolution: High (expected for professional service manuals) Binding Type Binding: N/A (Digital format) Paper Type Paper: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Code 325 325Es: M20B25 Engine Code 325E: M20B27 Configuration: Inline 6-cylinder Displacement 325 325Es: 2.5 Liters (2494 cc) Displacement 325E: 2.7 Liters (2693 cc) Performance Horsepower 325 325Es: 168 hp @ 5800 rpm Horsepower 325E: 121 hp @ 4250 rpm (often referred to as 'Eta' engine for torque focus) Torque 325 325Es: 164 lb-ft @ 4300 rpm Torque 325E: 170 lb-ft @ 3250 rpm Fuel System Fuel Delivery: Bosch L-Jetronic or Motronic fuel injection Fuel Type: Unleaded Gasoline (Premium Recommended) Cooling System Coolant Type: BMW Blue Antifreeze/Coolant (G48 or equivalent) or a 50/50 mix of Ethylene Glycol and distilled water. Lubrication System Oil Type Recommendation: Synthetic SAE 15W-40 or 20W-50 depending on climate. Consult manual for precise specifications. Oil Capacity: Approximately 5.5 US quarts (5.2 Liters) with filter change (verify in manual). 🔧 Transmission Standard Standard Transmission Type: 5-speed Manual (Getrag 260) Optional Optional Transmission Type: 4-speed Automatic (ZF 4HP22) Features Transmission Fluid Manual: BMW MTF LT-2 or equivalent (e.g., Red Line MTL) Transmission Fluid Automatic: Dexron II or equivalent (verify specific BMW specification in manual). 📐 Dimensions Exterior Body Styles: 2-door Sedan, 4-door Sedan, Convertible Weights Curb Weight Approximate: 2800 - 3100 lbs (1270 - 1406 kg), varies by body style and options. 🛡️ Safety Features Ratings Safety Features Overview: ABS (Anti-lock Braking System) was optional or standard on certain models. Crumple zones, seat belts. Active Features ABS: Available Passive Features Seatbelts: Front and rear seat belts. 💡 Technology Features Infotainment Infotainment System: Basic analog gauges, AM/FM radio with cassette player, optional premium sound systems. Driver Assistance Driver Assistance Features: ABS (optional/standard depending on trim), limited driver aids by modern standards. Connectivity Connectivity Features: None by modern definition; basic power accessories. 🔧 Maintenance Service Intervals Oil Change Interval: Approximately every 5,000 to 7,500 miles (8,000 to 12,000 km) or annually, depending on driving conditions. Refer to manual for specific recommendations. Spark Plug Replacement: Typically every 30,000 miles (48,000 km) for standard plugs; consult manual for specific plug type and interval. Coolant Flush: Every 2 years or 30,000 miles (48,000 km). Timing Belt Replacement: The M20 engine uses a timing belt. Replacement interval is typically around 40,000 to 60,000...