🏷️ Basic Information Identification Make: BMW Model: 335i Model Code: E90/E91/E92/E93 Generation Generation Designation: E90 Generation Codes Chassis Codes: E90 (Sedan), E91 (Wagon/Touring), E92 (Coupe), E93 (Convertible) 👋 Introduction Market Position Positioning: Premium sport sedan/coupe/convertible, competitor to Mercedes-Benz C-Class, Audi A4/S4, Lexus IS, Infiniti G35/G37 Competitive Analysis Strengths: Powerful twin-turbocharged engine, engaging driving dynamics, luxurious interior, advanced technology Weaknesses: Potential for costly maintenance and repairs, specific N54 engine issues (e.g., HPFP, injectors, turbos) Key Features Engine: 3.0L N54 twin-turbocharged inline-6 Drivetrain: Rear-wheel drive (RWD) standard, optional xDrive all-wheel drive (AWD) on some models Body Styles: Sedan (E90), Wagon (E91), Coupe (E92), Convertible (E93) 📋 Manual Details Coverage Areas Years Covered: 2006, 2007, 2008, 2009, 2010 Page Count Estimated Pages: Hundreds (specific count varies by edition, typically 2000+ for full factory coverage) Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine: N54 Twin-Turbocharged Inline-6 Engine (including twin turbochargers, intercooler, fuel injection, ignition, exhaust systems) Transmission: 6-speed manual (GS6-37BZ) and 6-speed automatic (GA6HP19Z) transmissions, including clutch, differential, driveshafts Brakes: Hydraulic brake system, ABS, DSC (Dynamic Stability Control), brake pad replacement, rotor replacement, bleeding procedure Suspension: Front and rear suspension components (struts, shocks, control arms, sway bars, bushings), alignment specifications Steering: Power steering system, steering rack, steering column, wheel alignment Electrical: Battery, charging system, starter, lighting systems, power windows, mirrors, central locking, fuse box diagrams, relay locations, wiring diagrams Climate Control: HVAC system, A/C refrigerant handling, blower motor, climate control unit diagnostics Bodywork: Body panel removal and installation, door mechanisms, bumper repair, interior trim, convertible top mechanisms (E93) Safety Systems: Airbag system diagnostics and replacement, seat belt pre-tensioners Procedures Included Maintenance: Oil and filter changes, air filter replacement, spark plug replacement, coolant flush, brake fluid flush, drive belt inspection and replacement Troubleshooting: Diagnostic procedures for common faults, error code interpretation, symptom-based troubleshooting guides Repair: Engine component removal and installation (e.g., turbos, injectors, water pump), transmission overhaul, suspension component replacement, electrical component repair Installation: Installation procedures for factory accessories, diagnostic tools Diagnostics: Detailed diagnostic trees, circuit testing, component testing, use of BMW diagnostic equipment (ISTA/P, INPA) Technical Depth Depth: Comprehensive (covers routine maintenance to complete engine and transmission rebuilds, advanced electrical diagnostics) 📊 Manual Specifications File Format File Type: PDF Print Quality Quality: High-resolution, suitable for professional printing Binding Type Binding: Not applicable (PDF download) Paper Type Paper Type: Not applicable (PDF download) Searchability Text Search: Searchable text content for quick information retrieval ⚙️ Engine Specifications Primary Engine Engine Code: N54B30 Engine Type: Twin-turbocharged inline-6 Displacement: 2979 cc (3.0 Liters) Bore X Stroke: 84.0 mm x 89.6 mm Compression Ratio: 10.2:1 Valvetrain: DOHC, 24 valves, Double VANOS Performance Horsepower Early: 300 hp @ 5800 rpm (approx.) Torque Early: 300 lb-ft @ 1300-5000 rpm (approx.) Horsepower Late Facelift: 300 hp @ 5800 rpm (E90 LCI), 320 hp @ 5800 rpm (E92/E93 LCI, potentially) Torque Late Facelift: 300 lb-ft @ 1300-5000 rpm (E90 LCI), 317 lb-ft @ 1400-5000 rpm (E92/E93 LCI, potentially) Fuel System Fuel Delivery: Direct Injection (DI) with High-Pressure Fuel Pump (HPFP) Fuel Type: Premium Unleaded Gasoline (91+ octane recommended) Turbocharger System: Sequential twin-turbo system (smaller turbo for low RPM boost, larger turbo for high RPM boost) 🔧 Transmission Standard Manual Transmission: 6-speed manual (Getrag GS6-37BZ) Optional Automatic Transmission: 6-speed Steptronic automatic with paddle shifters (ZF GA6HP19Z) Features Clutch Type: Dual-mass flywheel with single-plate clutch (manual) Transmission Fluid Manual: BMW MTF LT-2 or equivalent (e.g., Pentosin MTF2) Transmission Fluid Automatic: BMW ATF LT-5 (or equivalent like Pentosin ATF1) 📐 Dimensions Exterior Wheelbase E90 E91: 108.7 inches (2760 mm) Wheelbase E92 E93: 107.5 inches (2730 mm) Length E90: 181.8 inches (4618 mm) Length E92: 180.8 inches (4591 mm) Width: 70.1 inches (1781 mm) Height E90: 56.7 inches (1441 mm) Height E92: 54.4 inches (1382 mm) Wheel Bolt Pattern: 5x120 Wheel Offset: ET 34-46 (typical) Weights Curb Weight Manual: approx. 3600 lbs (1630 kg) Curb Weight Automatic: approx. 3650 lbs (1655 kg) 🛡️ Safety Features Ratings NHTSA Front Crash: 5-Star (2006 sedan) IIHS Top Safety Pick: Yes (various years, depending on body style) Active Features Stability Control: Dynamic Stability Control (DSC), Dynamic Traction Control (DTC) Braking Assist: Anti-lock Braking System (ABS), Electronic Brake force Distribution (EBD), Brake Assist Passive Features Airbags: Front airbags, front side airbags, head protection system (curtain airbags for sedan/coupe) Seatbelts: Pre-tensioning front seat belts, active head restraints 💡 Technology Features Infotainment I Drive: iDrive infotainment system with central controller, available navigation, and satellite radio. Audio Options: Standard Hi-Fi audio, optional Logic 7 premium sound system. Driver Assistance Parking Assist: Optional Park Distance Control (PDC) front and rear. Cruise Control: Standard cruise control, optional Active Cruise Control (ACC) on some models. Connectivity Bluetooth: Optional Bluetooth hands-free interface for phone calls. Usb Aux Input: Optional USB/AUX input for audio devices. 🔧 Maintenance Service...