Market Segment:
Compact Executive Sedan/Coupe/Convertible
Target Audience:
Automotive enthusiasts, DIY mechanics, professional repair shops.
Key Competitors:
Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35/G37.
Vehicle Attributes:
Sporty handling, refined interior, powerful inline-6 engine, rear-wheel drive bias (optional xDrive all-wheel drive).
Manual Value Proposition:
Provides comprehensive, dealership-level repair and maintenance information, reducing reliance on expensive dealership services.
Engine Mechanical:
Detailed procedures for engine disassembly, inspection, assembly, and repair of the N52 inline-6 engine.
Engine Management:
Diagnosis and repair of engine control unit (ECU), sensors, actuators, ignition system, and fuel injection.
Transmission Manual:
Service and repair for Getrag 6-speed manual transmissions.
Transmission Automatic:
Service and repair for ZF 6-speed automatic transmissions (e.g., 6HP19).
Drivetrain:
Repair and maintenance of differentials, driveshafts, and axles.
Suspension:
Detailed information on front and rear suspension components, alignment procedures, and component replacement.
Steering:
Diagnosis and repair of the hydraulic power steering system.
Brakes:
Service procedures for hydraulic brake systems, ABS, DSC, and parking brake.
Electrical System:
Comprehensive wiring diagrams, component location, diagnosis, and repair for all electrical circuits.
Body And Chassis:
Body panel removal and installation, interior trim, doors, windows, and convertible top mechanisms (E93).
HVAC:
Diagnosis and repair of the automatic climate control system, refrigerant handling, and component replacement.
Comfort Systems:
Service for power seats, mirrors, sunroof, and central locking.
Infotainment And Navigation:
Basic diagnostic information for iDrive system, radio, and navigation components.
Routine Maintenance:
Oil changes, filter replacements, fluid checks, spark plug replacement, and belt inspection.
Diagnostic Procedures:
Step-by-step troubleshooting guides for common and uncommon issues, including DTC (Diagnostic Trouble Code) interpretation.
Component Replacement:
Detailed instructions for removing, installing, and adjusting virtually every component.
Rebuilding Procedures:
Complete engine and transmission rebuild specifications and procedures.
Torque Specifications:
Precise torque values for all critical fasteners.
Special Tools:
Listing and usage instructions for BMW-specific tools required for certain repairs.
Depth Level:
Factory-level detail, suitable for professional technicians and advanced DIYers.
Diagnostic Capability:
Enables advanced electronic diagnostics and mechanical troubleshooting.
Rework Procedures:
Includes procedures for recalibration and adaptation of electronic modules after component replacement.
Engine Type:
Naturally Aspirated Inline 6-Cylinder
Displacement:
2996 cc (3.0 Liters)
Bore X Stroke:
85.0 mm x 88.0 mm
Compression Ratio:
10.7:1
Horsepower:
255 hp @ 6600 rpm
Torque:
220 lb-ft @ 2750 rpm
Fuel Delivery:
Electronic Fuel Injection (EFI), VANOS (Variable Valve Timing), VALVETRONIC
Fuel Type:
Premium Unleaded Gasoline (91 Octane or higher recommended)
Cooling Type:
Liquid-Cooled, Electric Water Pump (from 2008 onwards on some models)
Wheelbase:
108.7 inches (2760 mm)
Length:
181.8 inches (4619 mm) (Sedan)
Width:
70.2 inches (1783 mm)
Height:
56.7 inches (1440 mm) (Sedan)
Curb Weight:
Approx. 3450 - 3700 lbs (1565 - 1680 kg) depending on body style and drivetrain
Gross Vehicle Weight Rating:
Typically around 4500-4600 lbs
Trunk Capacity:
12.0 cu ft (Sedan), 15.0 cu ft (Coupe), 14.5 cu ft (Convertible), 17.7 cu ft (Wagon)
NHTSA Front Crash Test:
5-Star (for applicable models)
IIHS Front Offset Crash Test:
Good (for applicable models)
Traction Control:
Dynamic Traction Control (DTC), Dynamic Stability Control (DSC)
Braking System:
Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist
Airbags:
Front airbags, side-impact airbags, front and rear head protection system (curtain airbags).
Seatbelts:
Three-point inertia-reel seatbelts with pretensioners.
Infotainment System:
BMW iDrive system (various iterations throughout the model years), offering navigation, audio, and vehicle settings control.
Advanced Driver Assistance:
Optional features may include adaptive xenon headlights, front and rear parking sensors (Park Distance Control - PDC).
Connectivity Options:
Bluetooth connectivity for hands-free calling (requiring specific adapter or integrated module), USB audio interface (later models).
Variable Valve Timing:
Double VANOS (Variable Valve Timing) and VALVETRONIC for optimized engine performance and efficiency.
Oil Change Interval:
Typically every 10,000 - 15,000 miles or 12-24 months, based on Condition Based Service (CBS) monitoring.
Brake Fluid Change:
Every 2 years (regardless of mileage).
Spark Plug Replacement:
Typically around 60,000 - 100,000 miles, depending on specific plugs and driving conditions.
Engine Oil Type:
BMW Longlife-01 (LL-01) or Longlife-04 (LL-04) approved synthetic oil, typically 0W-30 or 5W-30.
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 or equivalent).
Brake Fluid Type:
DOT 4 LV (Low Viscosity).
Automatic Transmission Fluid:
ZF Lifeguardfluid 6 (or equivalent specified by ZF/BMW for 6HP19 transmission).
Common Problems Summary:
Oil leaks (valve cover gaskets, oil pan gaskets, oil filter housing gasket), cooling system issues (water pump, thermostat, hoses), VANOS solenoids, ignition coil failures, eccentric shaft sensor failures, CCV (Crankcase Ventilation) system issues, fuel pump failures.
Specific Issue Ccv:
The crankcase ventilation system can become clogged, leading to increased oil consumption and potential sealing failures.
Specific Issue Cooling:
Electric water pumps (on later models) can fail, leading to overheating. Thermostat failures are also common.
Brand Focus:
BMW is renowned for its 'Ultimate Driving Machine' philosophy, emphasizing performance, luxury, and engineering.
E90 Introduction:
The E90 generation 3 Series replaced the E46 and introduced significant advancements in technology, design, and engine performance. The 330i represented a potent, naturally aspirated inline-6 option in the lineup.
Key Updates During Generation:
Introduction of iDrive infotainment, more powerful and efficient engines (N52), optional xDrive AWD, and new body styles (Coupe and Convertible).
Production Period:
2005-2011 (E90/E91/E92/E93 generation overall)
Manufacturing Locations:
Germany (e.g., Munich, Dingolfing), South Africa, China (for local markets).
