🏷️ Basic Information Identification Make: BMW Model: 3 Series Chassis Code: E90 (Sedan), E91 (Touring/Wagon), E92 (Coupe), E93 (Convertible) Years Covered: 2006, 2007, 2008, 2009, 2010 👋 Introduction Market Position Market Position: The BMW E90/E91/E92/E93 3 Series represented a significant evolution in BMW's compact executive segment, blending sporty dynamics with premium comfort and advanced technology. This era's 3 Series was a class leader and a popular choice for discerning drivers. Competitive Analysis Competitive Analysis: Competed directly with the Audi A4, Mercedes-Benz C-Class, Lexus IS, and Infiniti G35/G37. The E90 generation was praised for its driving dynamics, refined interiors, and a wide range of powertrain options. Key Features Key Features: Rear-wheel drive bias (with xDrive all-wheel drive available), sophisticated multi-link suspension, powerful inline-6 engines, and a range of luxury and technology features for its time. 📋 Manual Details Coverage Manual Type: Complete Workshop Service Repair Manual Language: English Format: Digital Download (PDF) Page Count: Extensive (Specific page count not provided, but stated to be comprehensive A-Z) Delivery Method: Instant Email Delivery 📖 Manual Coverage Systems Systems Covered: Engine, Transmission (Automatic & Manual), Drivetrain, Suspension, Steering, Brakes (ABS, DSC), Fuel System, Exhaust System, Cooling System, Electrical System (ECU, Wiring Diagrams, Lighting, Ignition), Climate Control (HVAC), Bodywork & Chassis, Interior Trim, Safety Systems (Airbags), Diagnostic Procedures, Maintenance Procedures Procedures Included: Routine Maintenance, Scheduled Service, Troubleshooting, Fault Diagnosis, Engine Repair & Rebuild, Transmission Overhaul, Brake Service & Repair, Suspension & Steering Alignment, Electrical Component Testing & Replacement, Body Panel Repair, Interior Component Servicing, Diagnostic Trouble Code (DTC) Interpretation & Resolution Depth Technical Depth: Comprehensive: Covers everything from basic oil changes and fluid checks to complete engine and transmission rebuilds, including detailed diagnostic procedures and wiring schematics. Suitable for both DIY enthusiasts and professional technicians. Diagnostics Diagnostic Tools: Covers procedures for using BMW's diagnostic tools (e.g., GT1, DIS, ISTA/D) or equivalent OBD-II scanners. Details specific diagnostic trouble codes (DTCs) and their potential causes and solutions. Electrical Electrical Schematics: Includes detailed wiring diagrams for all major systems, allowing for precise troubleshooting of electrical faults, component testing, and repair of wiring harness issues. Bodywork Bodywork Repair: Procedures for body panel alignment, repair, painting, and replacement of exterior trim components. Information on structural components and safety systems related to the chassis. Interior Interior Service: Instructions for removing and reinstalling interior trim panels, seats, dashboard components, and HVAC system servicing. Details on airbag system components and safe handling procedures. Engine Rebuild Engine Rebuild Procedures: Detailed procedures for engine disassembly, cleaning, inspection, measurement, and reassembly of internal components such as pistons, connecting rods, crankshaft, cylinder head, and valves. Includes torque specifications for all critical fasteners. Transmission Rebuild Transmission Rebuild Procedures: Comprehensive guides for the overhaul of both manual and automatic transmissions, covering clutch replacement, gear synchronization, seal replacement, torque converter service, and transmission control module (TCM) diagnostics. 📊 Manual Specifications File File Format: PDF (Adobe Reader Compatible) Searchability: Likely searchable text within the PDF for ease of navigation and information retrieval. Printability: Fully printable by chapter or entire document. Device Compatibility: Compatible with PC, Mac, Tablets, and Smartphones. Quality Digital Quality: High quality scanned or digitally created document with clear text and legible images/diagrams. Designed for ease of use on various devices. ⚙️ Engine Specifications Primary Engine Primary Engine: N52 (Naturally Aspirated Inline-6), N53 (Direct Injection Inline-6 - Europe), N54 (Twin-Turbocharged Inline-6 - e.g., 335i), N55 (Single-Turbocharged Inline-6 - later models), M54 (Naturally Aspirated Inline-6 - early models), N43 (Direct Injection Inline-4 - Europe), N45/N46 (Naturally Aspirated Inline-4) Performance Performance Examples: 328i (N52) typically produced ~230 hp, 330i (N52) ~255 hp, 335i (N54) ~300 hp, 335i (N55) ~300 hp. Torque figures varied accordingly. Specific outputs for all engine variants are detailed within the manual. Fuel System Fuel System: Multi-point fuel injection (MPI) for N52 engines. Direct injection (DI) for N53, N55, and N43 engines. Turbocharged engines (N54, N55) feature advanced fuel delivery systems. Maintenance Oil Type: Typically BMW Longlife-01 (LL-01) or Longlife-04 (LL-04) synthetic engine oil. Specific viscosity grades (e.g., 0W-30, 5W-30) depend on engine and climate. Manual will specify exact requirements. Timing System Timing System: All 6-cylinder engines (N52, N54, N55) and most 4-cylinder engines feature BMW's VANOS (Variable Valve Timing) and Valvetronic (variable valve lift) systems for improved performance and efficiency. Manual covers servicing and troubleshooting of these complex systems, including timing chain and guide replacement. 🔧 Transmission Standard Standard Transmission: 6-speed Manual Transmission (e.g., Getrag GS6-37DZ for most 6-cyl, ZF GS6-17BG for 4-cyl). Some base models may have featured 5-speed manuals. Optional Optional Transmission: 6-speed ZF 6HP automatic transmission with Steptronic (shift paddles on steering wheel optional). Some earlier models might have had 5-speed automatics. Features Transmission Features: ZF automatic transmissions often featured Sport and Manual modes, Adaptive Transmission Control (ATC). Manuals are robust and known for precise engagement. Fluid Type Automatic Transmission Fluid: ZF Lifeguard fluid...