Target Audience:
        
        
            BMW 3-Series owners and independent repair shops seeking professional-level repair information.
        
     
    
    
        
            Vs Generic Manuals:
        
        
            Significantly superior to generic repair guides due to vehicle-specific data, factory procedures, and detailed schematics.
        
     
    
    
        
            Factory Authenticity:
        
        
            This manual is the identical resource used by BMW dealership technicians.
        
     
    
        
            Ease Of Use:
        
        
            Single, easy-to-use PDF format, eliminating the need to consult multiple physical books.
        
     
    
        
            Digital Convenience:
        
        
            Printable pages, no wear and tear, safe storage on PC, portable to workshop.
        
     
    
        
            Diagnostic Tools:
        
        
            While not a diagnostic scanner itself, it provides the detailed technical data necessary to interpret codes and guide the use of diagnostic tools.
        
     
 
    
    
    
        
            All Models And Repairs:
        
        
            True (Covers all E90, E91, E92, E93 variants)
        
     
    
    
        
            Estimated Page Count:
        
        
            Extensive (Specific count not provided, described as comprehensive)
        
     
    
    
        
            Type:
        
        
            Service and Repair Manual
        
     
    
    
    
    
 
    
    
    
        
            Engine Management:
        
        
            Complete diagnostics, repair, and specifications for all engine control systems.
        
     
    
        
            Powertrain:
        
        
            Covers manual and automatic transmissions, differentials, drive shafts, and axles.
        
     
    
        
            Chassis And Suspension:
        
        
            Includes detailed procedures for steering, suspension, brakes, and wheels/tires.
        
     
    
        
            Electrical Systems:
        
        
            Comprehensive coverage of all electrical components, including wiring schematics, multiplex/CAN communication.
        
     
    
        
            Comfort And Convenience:
        
        
            Detailed information on HVAC, power accessories (locks, windows), seats, interior/exterior trim, and lighting.
        
     
    
        
            Safety Systems:
        
        
            Includes Supplemental Restraint System (SRS), seat belts, and immobilizer systems.
        
     
    
        
            Emission Control:
        
        
            Details on catalytic converters, oxygen sensors, evaporative emission control systems (EVAP), and emissions testing procedures.
        
     
    
        
            Intake And Exhaust:
        
        
            Covers intake manifold, throttle body, exhaust system components, and turbocharger systems (for applicable models).
        
     
    
    
        
            Routine Maintenance:
        
        
            Step-by-step guides for oil changes, filter replacements, fluid checks, and general upkeep.
        
     
    
        
            Diagnostic Procedures:
        
        
            Detailed troubleshooting steps for identifying and resolving common and complex issues.
        
     
    
        
            Repair And Rebuild:
        
        
            Comprehensive instructions for component removal, disassembly, repair, and reassembly.
        
     
    
        
            Wiring Schematics:
        
        
            Complete and detailed wiring diagrams for all electrical systems.
        
     
    
        
            Diagnosing Driveability:
        
        
            Step-by-step procedures for diagnosing issues such as misfires, rough idle, hesitation, and poor fuel economy.
        
     
    
        
            Wheel And Tire Service:
        
        
            Information on tire pressure monitoring system (TPMS), wheel balancing, and alignment specifications.
        
     
    
        
            Body And Trim Repair:
        
        
            Includes procedures for exterior body panels, interior trim pieces, door mechanisms, and window regulators.
        
     
    
    
        
            Depth:
        
        
            Factory-level detail, designed for dealership technicians. Covers all repairs from basic maintenance to complex diagnostics and rebuilds.
        
     
    
        
            Specifications Accuracy:
        
        
            Contains exact torque specifications, clearances, fluid capacities, and electrical resistance values critical for accurate repairs.
        
     
 
    
    
    
    
        
            Searchability:
        
        
            Likely searchable text within the PDF (standard for quality manuals).
        
     
    
        
            Compatibility:
        
        
            Windows Vista (32/64-bit), XP, ME, 98, NT, 2000, and Mac OS compatible. Requires Adobe PDF Reader and Winzip.
        
     
    
    
        
            Printable:
        
        
            Yes, all pages are printable.
        
     
    
        
            Image Scaling:
        
        
            Images can be enlarged for detailed viewing and printing.
        
     
    
    
        
            Digital Binding:
        
        
            N/A (Digital PDF format, no physical binding)
        
     
    
    
        
            Digital Paper Type:
        
        
            N/A (Digital PDF format, no physical paper type)
        
     
 
    
    
    
        
            Engine Variants Covered:
        
        
            Likely includes N52 (3.0L I6), N54 (3.0L Twin-Turbo I6), N55 (3.0L Twin-Turbo I6), N51 (3.0L I6 - SULEV), and potentially diesel variants depending on market.
        
     
    
    
        
            Horsepower And Torque:
        
        
            Detailed specifications for all covered engine variants will be present, allowing for precise performance data confirmation.
        
     
    
    
        
            Fuel Delivery And Management:
        
        
            Includes information on fuel injectors, fuel pump, high-pressure fuel pump (for turbo models), fuel pressure sensors, and electronic throttle control.
        
     
    
    
        
            Ignition Components:
        
        
            Covers ignition coils, spark plugs, crankshaft position sensors, and camshaft position sensors.
        
     
    
    
        
            Cooling Components:
        
        
            Details on radiator, water pump, thermostat, coolant hoses, and cooling fan.
        
     
    
    
        
            Oil System:
        
        
            Information on oil pump, oil filter housing, oil pan, and oil specifications.
        
     
 
    
    
    
        
            Manual Transmission Types:
        
        
            Likely covers Getrag GS6-37BG / GS6-37DZ (6-speed manual).
        
     
    
    
        
            Automatic Transmission Types:
        
        
            Likely covers ZF 6HP19TU / 6HP21 (6-speed automatic) and potentially 8-speed automatic in later 2008 models or specific trims.
        
     
    
    
        
            Transmission Control:
        
        
            Details on mechatronics units, shift solenoids, and transmission control modules (TCM).
        
     
    
    
        
            Transmission Fluid Type:
        
        
            Specific BMW-approved ATF types (e.g., ATF6 for ZF transmissions) and manual gearbox oil specifications will be detailed.
        
     
 
    
    
    
        
            Wheelbase:
        
        
            E90/E92/E93: Approx. 108.7 inches (2760 mm); E91 (Touring): Approx. 108.7 inches (2760 mm).
        
     
    
        
            Track Width:
        
        
            Front and rear track specifications vary slightly by model (sedan, coupe, etc.) and are detailed within the manual.
        
     
    
    
        
            Curb Weight:
        
        
            Varies significantly by model and engine, typically ranging from ~3,400 lbs to ~4,000 lbs. Specifics are in the manual.
        
     
    
        
            Gross Vehicle Weight Rating:
        
        
            Detailed GVWR for each body style and configuration will be provided.
        
     
    
    
        
            Trunk Volume:
        
        
            E90/E92/E93: Approx. 12-15 cu ft (varies by body style). E91 (Touring): Approx. 17.7 - 50.3 cu ft with seats folded.
        
     
 
    
    
    
        
            NHTSA Safety Ratings:
        
        
            Generally received high safety ratings from NHTSA and IIHS, typically 4 or 5 stars in various categories. Specific 2008 ratings should be referenced.
        
     
    
    
        
            Electronic Stability Control:
        
        
            Dynamic Stability Control (DSC) is standard and fully covered.
        
     
    
        
            Traction Control:
        
        
            Automatic Stability Control + Traction (ASC+T) or Dynamic Traction Control (DTC) depending on model/options.
        
     
    
    
        
            Airbags:
        
        
            Front, side, and head airbags (curtain airbags) are detailed, including their control systems.
        
     
    
        
            Seat Belts:
        
        
            Information on pre-tensioners and force limiters for seat belts.
        
     
 
    
    
    
        
            I Drive System:
        
        
            Likely includes the iDrive controller with a central display (CIC or CCC generation depending on specific build date/options). Manual covers system operation and basic troubleshooting.
        
     
    
    
        
            Cruise Control:
        
        
            Standard cruise control and potentially optional Active Cruise Control (ACC) are covered.
        
     
    
    
        
            Bluetooth And Usb:
        
        
            Details on connecting mobile devices via Bluetooth and USB ports (if equipped) for audio streaming and phone integration.
        
     
    
    
        
            Xenon Headlights:
        
        
            Information on Bi-Xenon headlights, adaptive cornering lights, and ballast/bulb replacement procedures if equipped.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Typically indicated by the vehicle's Condition Based Service (CBS) system, often around 10,000-15,000 miles or annually, whichever comes first. Manual confirms CBS.
        
     
    
        
            Brake Fluid Flush:
        
        
            Recommended every 2 years, regardless of mileage.
        
     
    
        
            Spark Plug Replacement:
        
        
            Typically around 60,000-100,000 miles depending on engine variant and spark plug type (e.g., long-life iridium).
        
     
    
    
        
            Engine Oil Type:
        
        
            BMW Longlife-01 (LL-01) or Longlife-04 (LL-04) certified synthetic oil, typically 0W-30 or 5W-30. Manual will specify exact grade and API/ACEA standards.
        
     
    
        
            Coolant Type:
        
        
            BMW Blue coolant (G48 ethylene glycol-based) is typically required. Manual will specify dilution ratio and BMW part number.
        
     
    
    
        
            Common E90 Issues:
        
        
            Water pump failure (electric pumps in later models), PCV valve issues, VANOS solenoids, fuel injector issues (especially on N54/N55), oil filter housing gasket leaks.
        
     
    
        
            Common E90 Issues Brakes:
        
        
            Rotor warping, pad wear indicators, ABS/DSC sensor failures.
        
     
 
    
    
    
        
            Bmw Philosophy:
        
        
            The 3-Series embodies BMW's long-standing reputation for 'The Ultimate Driving Machine,' focusing on performance, handling, and driver engagement.
        
     
    
    
        
            E90 Generation Launch:
        
        
            The E90 generation was introduced for the 2006 model year, representing a significant evolution in design, technology, and performance over the E46.
        
     
    
        
            2008 Model Year Updates:
        
        
            While 2008 was not a major facelift year, minor updates to features, options, and potentially powertrain management software may have occurred.
        
     
    
    
        
            Manufacturing Locations:
        
        
            Primarily manufactured in Germany (e.g., Munich, Dingolfing), with potential assembly in other global locations.