Segment:
Compact Executive Sedan
Usp:
Sporty driving dynamics, premium interior, advanced engineering for its era.
Key Competitors:
Mercedes-Benz C-Class (W203), Audi A4 (B6), Lexus IS300, Infiniti G35
Performance Orientation:
Focus on driver engagement and handling characteristics.
Engineering Philosophy:
German engineering precision, balanced chassis, high-revving inline-six engines.
Engine:
M54B30 Engine Overhaul, Diagnostics, Tuning
Transmission:
Manual (Getrag 420G) and Automatic (GM A5S360R/A5S325Z) Transmission Repair and Overhaul
Drivetrain:
Rear Wheel Drive System, Driveshaft, Differential, Axles
Suspension:
Front Struts, Rear Multi-link Suspension, Bushings, Springs, Dampers
Brakes:
Front and Rear Disc Brakes, ABS System (including DSC), Hydraulic System
Steering:
Power Steering System, Steering Rack, Column
Electrical:
Battery, Charging System, Ignition System, Lighting, Fuses, Relays, ECU Diagnostics, Wiring Diagrams
Cooling:
Radiator, Water Pump, Thermostat, Coolant Lines, Fan Assembly
Fuel:
Fuel Tank, Fuel Pump, Fuel Injectors, Fuel Filter, Fuel Lines, DME Control
Exhaust:
Exhaust Manifold, Catalytic Converter, Mufflers, Sensors
HVAC:
Air Conditioning System, Heater Core, Blower Motor, Climate Control Module
Bodywork:
Exterior Panel Removal and Installation, Doors, Hood, Trunk, Bumpers
Interior:
Dashboard Removal, Seat Systems, Trim Panels
Maintenance:
Routine Service, Oil Changes, Filter Replacements, Spark Plug Replacement, Belt Replacement
Diagnostics:
Troubleshooting Guides, Fault Code Interpretation (OBD-II), Component Testing
Repair:
Component Replacement, Overhauling Procedures, Reassembly Steps
Adjustment:
Wheel Alignment Specifications, Headlight Aiming
Rebuilding:
Engine Rebuild, Transmission Rebuild, Differential Rebuild
Lubrication:
Lubrication Points, Greasing Procedures
Safety Systems:
Airbag System Service and Diagnostics
Depth:
Comprehensive: From basic maintenance to full engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.
Engine Type:
3.0L Inline-6, Naturally Aspirated
Displacement:
2979 cc (181.8 cu in)
Bore X Stroke:
84.0 mm x 89.6 mm (3.31 in x 3.53 in)
Compression Ratio:
10.2:1
Horsepower:
225 hp @ 5900 rpm (approx.)
Torque:
214 lb-ft @ 3500 rpm (approx.)
Fuel Delivery:
Electronic Fuel Injection (EFI) with Bosch Motronic DME
Fuel Type:
Premium Unleaded (91+ Octane Recommended)
Valvetrain:
Dual Overhead Camshafts (DOHC), 24 Valves, VANOS (Variable Valve Timing)
Type:
5-Speed Manual (Getrag 420G)
Type:
5-Speed Automatic (GM A5S360R / A5S325Z)
Manual Clutch:
Hydraulically Actuated Single Dry Plate
Automatic Features:
Steptronic (manual shifting mode)
Manual Transmission Fluid:
BMW MTF LT-2 or equivalent (e.g., Pentosin MTF 2)
Automatic Transmission Fluid:
Dexron III or equivalent (check specific A5S360R/A5S325Z specs for exact fluid type)
NHTSA Frontal Impact:
4 Stars (Driver and Passenger)
Traction Control:
Dynamic Stability Control (DSC)
Braking System:
Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD)
Airbags:
Frontal Airbags (Driver and Passenger), Optional Side Airbags
Seatbelts:
3-Point Inertia Reel Seatbelts with Pretensioners
Oil Change Interval:
Variable Service Interval System (Condition-Based Service - CBS) indicated by the car's computer, typically around 7,500-15,000 miles or 12-24 months, depending on driving conditions. Refer to manual for specific triggers.
Spark Plug Replacement:
Approximately 100,000 miles (Long Life Spark Plugs).
Coolant Replacement:
BMW Blue Antifreeze/Coolant (G48), typically replaced every 2-4 years or as indicated by CBS.
Engine Oil Type:
BMW Longlife-01 (LL-01) synthetic oil, typically 5W-30 or 5W-40. Check manual for specific viscosity recommendations based on climate.
Engine Oil Capacity:
6.5 US quarts (6.2 L) with filter change
Brake Fluid:
DOT 4 Low Viscosity (LV) or DOT 4+.
Power Steering Fluid:
Pentosin CHF 11S or a BMW approved substitute.
Crankcase Ventilation System:
Clogged PCV valve and hoses leading to vacuum leaks, rough idle, and oil consumption.
Cooling System:
Plastic coolant expansion tank, water pump, and thermostat housing are prone to cracking and failure.
Oil Pan Gasket:
Common oil leaks from the oil pan gasket and rear main seal.
Vanos:
Solenoid seals or rattle from the VANOS unit, affecting performance and idle.
Suspension Bushings:
Wear in control arm bushings and subframe bushings, leading to sloppy handling and noise.
Manufacturer Origins:
Bayerische Motoren Werke AG, founded in 1916, Germany.
E46 Generation:
Fourth generation of the BMW 3 Series, produced from 1998 to 2006.
330I Positioning:
Replaced the 328i, offering increased displacement and power, representing the sportier, more powerful naturally aspirated offering in the lineup for this year.
Production Locations:
Mainly Germany (Dingolfing, Munich), with some assembly in other countries.