🏷️ Basic Information Identification Make: BMW Model: 3 Series Model Generation: E90/E91/E92/E93 Applicable Years: 2006, 2007, 2008, 2009, 2010 Codes Chassis Codes: E90 (Sedan), E91 (Wagon/Touring), E92 (Coupe), E93 (Convertible) 👋 Introduction Market Position Segment: Premium Compact Executive Sedan/Coupe/Wagon Competitive Analysis Key Competitors: Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35/G37 Key Features Performance Orientation: Known for its engaging driving dynamics, rear-wheel-drive bias (with xDrive AWD option), and balanced chassis. Engine Variants: Offered with a range of inline-four and inline-six gasoline engines, and efficient diesel engines in certain markets. 📋 Manual Details Coverage Areas Primary Coverage: Repair, Maintenance, Diagnostics, Troubleshooting, Wiring Diagrams, Specifications Page Count Total Pages: 2520 Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, Engine electrical, Fuel system, Exhaust system, Cooling system, Lubrication system, Ignition system Drivetrain: Manual transmission, Automatic transmission (Steptronic), Transfer case (if applicable), Drive shafts, Axles, Differentials Chassis: Suspension (front and rear), Steering system, Brakes (hydraulic, ABS, DSC), Wheels and Tires Electrical: Body electrical systems, Lighting, Instrumentation, Audio system, HVAC controls, Power windows/locks/seats, Cruise control, SRS (Airbag) system, ECU and modules, Wiring diagrams Body: Body panels, Doors, Hood, Trunk, Bumpers, Glass, Seals, Interior trim, Seats Procedures Included Maintenance: Oil change, Filter replacement, Fluid checks and top-offs, Spark plug replacement, Brake pad/rotor replacement, Belt inspection and replacement Repair: Engine assembly/disassembly, Transmission repair, Suspension component replacement, Brake system bleeding and component replacement, Electrical component diagnosis and replacement, Body panel repair and replacement Diagnostics: Troubleshooting guides, Diagnostic trouble codes (DTCs) and their meanings, Symptom-based troubleshooting, Electrical circuit testing Technical Depth Depth: Comprehensive from basic fluid changes and checks to complete engine and transmission rebuilds, including detailed diagnostic procedures and wiring schematics. 📊 Manual Specifications File Format File Type: PDF Print Quality Quality: High-resolution, searchable text and clear, legible diagrams. Binding Type Binding: N/A (Digital Download) Paper Type Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code Example: N52B30 (3.0L inline-six) Performance Horsepower Range: 170 hp to 300 hp (depending on engine variant) Torque Range: 200 lb-ft to 300 lb-ft (depending on engine variant) Fuel System Injection Type: Fuel Injection (Direct Injection on later models/variants) Engine Variants Covered Gasoline Engines: N46B20 (2.0L I4), N52B25 (2.5L I6), N52B30 (3.0L I6), N54B30 (3.0L Twin-Turbo I6 - 335i/xi) Diesel Engines: M47D20 (2.0L Turbo Diesel I4), N47D20 (2.0L Turbo Diesel I4), M57D30 (3.0L Turbo Diesel I6) 🔧 Transmission Standard Transmission Type: 6-speed Manual Transmission Optional Transmission Type: 6-speed Steptronic Automatic Transmission Features Drive Options: Rear-Wheel Drive (RWD), xDrive All-Wheel Drive (AWD) 📐 Dimensions Exterior Wheelbase E90: 108.7 inches (2760 mm) Wheelbase E91: 108.7 inches (2760 mm) Wheelbase E92: 107.4 inches (2728 mm) Wheelbase E93: 108.7 inches (2760 mm) Weights Curb Weight Range: 3400 lbs - 4000 lbs (depending on body style and drivetrain) 🛡️ Safety Features Ratings IIHS Top Safety Pick: Many models received IIHS Top Safety Pick awards during these years. Active Features Stability Control: Dynamic Stability Control (DSC) standard Traction Control: Automatic Stability Control and Traction (ASC+T) Passive Features Airbags: Frontal airbags, Side airbags, Head protection system (curtain airbags) 💡 Technology Features Infotainment System: iDrive infotainment system (CCC or updated CIC depending on year and options). Features: Navigation, Radio, CD/DVD player, Bluetooth connectivity (optional), Aux input. Driver Assistance Adaptive Headlights: Optional Xenon headlights with adaptive cornering function. Parking Sensors: Optional Park Distance Control (PDC). Connectivity Bluetooth: Optional Bluetooth hands-free interface. 🔧 Maintenance Service Intervals Oil Change Interval: Variable Service Interval (VSI) based on driving conditions, typically between 10,000-15,000 miles or 1-2 years. Brakes Inspection: Regular checks for pad wear and rotor condition, often indicated by the Condition Based Service (CBS) system. Air Filter Replacement: Recommended every 30,000-50,000 miles, or as indicated by the CBS system. Cabin Filter Replacement: Recommended annually or every 15,000-20,000 miles. Fluid Specifications Engine Oil Spec: BMW Longlife-01 (LL-01) or BMW Longlife-04 (LL-04) synthetic oil, typically 0W-30 or 5W-30. Coolant Spec: BMW Blue Antifreeze/Coolant (G48), mixed 50/50 with distilled water. Brake Fluid Spec: DOT 4 BMW Brake Fluid. Transmission Fluid Atf Spec: Dexron VI for automatic transmissions, specific manual transmission fluid for manual gearboxes. Known Issues Cooling System: Water pump failure (especially electric pumps), coolant leaks from hoses and expansion tank. Engine N54: High-pressure fuel pump (HPFP) failures, clogged fuel injectors, vacuum leaks, turbocharger issues. Suspension: Worn control arm bushings, strut mounts, and tie rod ends leading to steering looseness and uneven tire wear. Electrical: CCC/iDrive system glitches, power seat module failures, battery drain issues (often related to faulty modules). Oil Pan Gasket Leaks: Common on higher mileage vehicles, requiring significant labor to replace. 📚 Vehicle History Brand Heritage Bmw Philosophy: BMW is renowned for its 'Ultimate Driving Machine' slogan, emphasizing performance, handling, and engineering excellence. Model Evolution E90 Introduction: The E90 generation marked a significant redesign from the E46, introducing...