🏷️ Basic Information Identification Make: BMW Model: 3 Series Year: 2012 Body Styles: Convertible, Sedan, Coupe Codes Chassis Code: E90 (Sedan), E91 (Wagon - not specified but common for this era), E92 (Coupe), E93 (Convertible) E Code: E90/E91/E92/E93 👋 Introduction Market Position Segment: Premium Compact Executive Sports Sedan/Coupe/Convertible. Brand Perception: Known for driving dynamics, performance, and premium appointments. Competitive Analysis Key Competitors: Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G37. Key Features Driving Dynamics: Rear-wheel drive bias (xDrive optional), sophisticated suspension tuning, direct steering. Engine Options: Versatile range from a potent naturally aspirated inline-six to a high-output turbocharged inline-six and the M3's high-revving V8. Interior Quality: High-quality materials, ergonomic design, driver-focused cockpit. Technology Integration: iDrive infotainment system, advanced driver assistance systems (optional). 📋 Manual Details Coverage Areas Models Covered: 328i, 328i xDrive, 335i, 335i xDrive, 335is, M3 Page Count Estimated Page Count: Approximately 300-400 pages (typical for BMW owner's manuals of this era) Manual Type Type: Owner's Manual / Operator's Manual Language Language: English Format Format: Printed Booklet 📖 Manual Coverage Systems Covered Powertrain: Engine operation, lubrication, cooling, fuel system, exhaust system, ignition system Transmission: Automatic and Manual transmission operation, fluid checks Chassis: Steering, suspension, braking system, wheels and tires Electrical: Battery, lighting, fuses, power outlets, basic warning indicators Comfort And Convenience: Climate control, seats, windows, locks, mirrors, sunroof, audio system, navigation (if equipped) Safety Systems: Airbags, seatbelts, child restraint systems (ISOFIX), Dynamic Stability Control (DSC), Traction Control (TCS), Anti-lock Braking System (ABS) Driver Assistance: Parking Assistant, Cruise Control (standard), Adaptive Cruise Control (optional), Headlight Assist Information Display: Instrument cluster, iDrive system interface, warning messages, service indicators Procedures Included Basic Maintenance: Checking fluid levels (oil, coolant, brake fluid, windshield washer fluid), tire pressure checks, bulb replacement, jump starting Emergency Procedures: What to do in case of a breakdown, warning lights, tire changes Troubleshooting: Explanation of warning lights and messages, basic troubleshooting steps Vehicle Operation: Starting and stopping the engine, gear selection, parking, fuel filling Settings And Customization: Adjusting seats, mirrors, steering wheel, climate control settings, infotainment system personalization Technical Depth Depth: Owner-level information, focusing on safe operation, basic maintenance, and feature utilization. Does not include detailed diagnostic procedures or component-level repair instructions (typical for owner's manuals). 📊 Manual Specifications File Format Digital Format Availability: While this is a printed manual, digital versions (PDF) are often available from BMW or third-party sources. Print Quality Quality: High-quality paper and printing, typical of OEM BMW documentation. Binding Type Binding: Stapled or perfect bound booklet. Paper Type Paper Type: Glossy or semi-gloss paper stock. ⚙️ Engine Specifications Primary Engine 328I: 3.0L Naturally Aspirated Inline-6 (N51/N52) 328I Power: Approximately 230-240 horsepower 328I Torque: Approximately 220-230 lb-ft 335I: 3.0L Twin-Turbocharged Inline-6 (N54/N55) 335I Power: Approximately 300-306 horsepower 335I Torque: Approximately 300 lb-ft 335Is: 3.0L Twin-Turbocharged Inline-6 (N54 - enhanced version) 335Is Power: Approximately 320 horsepower 335Is Torque: Approximately 332 lb-ft (with overboost) M3: 4.0L Naturally Aspirated V8 (S65) M3 Power: Approximately 414 horsepower M3 Torque: Approximately 295 lb-ft Performance Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Fuel System Injection Type: Port fuel injection (PFI) for N51/N52, Direct Injection (DI) for N54/N55/S65. 🔧 Transmission Standard 328I: 6-Speed Manual Transmission (Getrag GS6-37BZ) 335I/335I Xdrive: 6-Speed Manual Transmission (Getrag GS6-37BZ / GS6-53DZ for xDrive) Optional 328I: 6-Speed Steptronic Automatic Transmission (GA6HP19Z) 335I/335I Xdrive: 7-Speed M-DCT Dual Clutch Transmission (for RWD models, E90/E92/E93 335i) or 6-Speed Automatic (GA6HP19Z/GA6HP26Z for xDrive). Features M-Dct: Provides lightning-fast shifts, manual control via paddle shifters or gear selector. Steptronic: Allows manual gear selection via the gear selector or steering wheel paddles (on select models). 📐 Dimensions Exterior Sedan Length: Approx. 181.8 inches (E90) Coupe Length: Approx. 180.5 inches (E92) Convertible Length: Approx. 181.8 inches (E93) Width: Approx. 70.2 inches Height: Sedan: ~56.7 inches, Coupe: ~55.4 inches, Convertible: ~55.7 inches Wheelbase: Sedan/Convertible: ~108.7 inches, Coupe: ~108.7 inches Weights Curb Weight Min: Approx. 3,400 lbs (328i Coupe, Manual) Curb Weight Max: Approx. 4,000 lbs (335is Convertible, Automatic) 🛡️ Safety Features Ratings NHTSA Rating: Generally good, with 5-star ratings in frontal and side crash tests for many configurations. Specific ratings vary by body style and testing year. Active Features Traction Control: Dynamic Traction Control (DTC) and Dynamic Stability Control (DSC) standard. Braking System: Four-wheel disc brakes with Anti-lock Braking System (ABS) and Brake Fade Compensation. Limited Slip Differential: Optional on some RWD models, standard on M3. Passive Features Airbags: Frontal airbags, front side-impact airbags, head protection system (curtain airbags for Sedan/Coupe, rollover protection for Convertible). Seatbelts: Three-point inertia-reel seatbelts with pretensioners and force limiters, active front head restraints. Child Seat Anchors: LATCH (Lower Anchors and Tethers for CHildren) / ISOFIX system. 💡 Technology Features Infotainment System Name: iDrive (CCC or CIC predecessor to current iDrive versions). Features: Navigation system, Radio (AM/FM/Satellite), CD/DVD player, auxiliary input, USB/Bluetooth connectivity (often via adapter or specific packages), voice control....