The BMW 3 Series Sedan (E90) 330xi, produced from 2005 to 2007, represented a significant evolution in BMW’s long-standing tradition of sporty, executive sedans. Positioned as a premium all-wheel-drive variant within the E90 generation, the 330xi offered a blend of performance and all-weather capability. It served as a step up from the base 325i models, providing increased horsepower and torque, while remaining a more accessible option compared to the high-performance 335i and M3. The E90 3 Series as a whole was a pivotal model for BMW, introducing a new level of technology and refinement to the compact executive segment.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (E90) |
| Type (Engine) | 330xi (258 Hp) |
| Start of production | 2005 |
| End of production | 2007 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 13.9 l/100 km (16.9 US mpg) |
| Fuel consumption (extra urban) | 7.1 l/100 km (33.1 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.4 sec |
| Acceleration 0 – 62 mph | 6.4 sec |
| Acceleration 0 – 60 mph | 6.1 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Weight-to-power ratio | 6.1 kg/Hp |
| Weight-to-torque ratio | 5.3 kg/Nm |
| Power | 258 Hp @ 6600 rpm |
| Power per litre | 86.1 Hp/l |
| Torque | 300 Nm @ 2500 rpm (221.27 lb.-ft. @ 2500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N52B30A |
| Engine displacement | 2996 cm3 (182.83 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 85 mm (3.35 in.) |
| Piston Stroke | 88 mm (3.46 in.) |
| Compression ratio | 10.7:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 8.2 l (8.66 US qt | 7.21 UK qt) |
| Kerb Weight | 1585 kg (3494.33 lbs.) |
| Max. weight | 2100 kg (4629.71 lbs.) |
| Max load | 515 kg (1135.38 lbs.) |
| Trunk (boot) space – minimum | 460 l (16.24 cu. ft.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 4520 mm (177.95 in.) |
| Width | 1817 mm (71.54 in.) |
| Height | 1421 mm (55.94 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1500 mm (59.06 in.) |
| Rear (Back) track | 1513 mm (59.57 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Spring Strut |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 225/45 R17 W |
| Wheel rims size | 8J x 17 |
Powertrain & Engine Architecture
The heart of the 330xi was the N52B30A, a 3.0-liter inline-six cylinder engine. This engine was a significant departure from the previous M54 generation, featuring a fully variable valve timing system (Double-VANOS) and a lighter-weight construction. The N52 utilized a magnesium alloy engine block and plastic valve cover, contributing to reduced weight and improved efficiency. Fuel delivery was handled by a multi-port fuel injection system, optimized for smooth power delivery and reduced emissions. The engine produced 258 horsepower at 6600 rpm and 221 lb-ft of torque at 2500 rpm. The 330xi was exclusively offered with a six-speed manual transmission in the US market, providing drivers with precise control over the engine’s power. The all-wheel-drive system, BMW’s xDrive, was a viscous coupling system that distributed power between the front and rear axles as needed, enhancing traction in various conditions.
Driving Characteristics
The 330xi offered a balanced driving experience. The inline-six engine provided a smooth and linear power delivery, making it well-suited for both daily commuting and spirited driving. While not as aggressively tuned as the 335i with its turbocharged engine, the 330xi still delivered respectable acceleration, achieving 0-60 mph in approximately 6.1 seconds. The six-speed manual transmission allowed for precise gear changes, and the xDrive all-wheel-drive system provided enhanced stability and grip, particularly in inclement weather. Compared to the base 325i, the 330xi offered a noticeable increase in performance, while remaining more approachable and less demanding than the higher-performance models.
Equipment & Trim Levels
The 330xi came standard with a comprehensive list of features, including power windows, power locks, a premium sound system, and automatic climate control. Leatherette upholstery was standard, with optional leather upgrades available. Common options included a sunroof, navigation system, sport package (which added sport seats, sport suspension, and unique styling cues), and premium sound systems. The interior design was typical of BMW at the time, with a driver-focused layout and high-quality materials. The sport package was a popular choice, enhancing the car’s handling and aesthetics.
Chassis & Braking
The E90 3 Series featured a MacPherson strut front suspension and a multi-link rear suspension, providing a comfortable yet controlled ride. The 330xi benefited from a slightly stiffer suspension tuning compared to the base models, enhancing handling performance. Brakes consisted of ventilated discs at all four corners, providing ample stopping power. The ABS (Anti-lock Braking System) was standard, along with electronic stability control, further enhancing safety. The xDrive all-wheel-drive system added to the car’s stability, particularly during braking on slippery surfaces.
Market Reception & Comparison
The 330xi was generally well-received by automotive critics. It was praised for its balanced handling, smooth engine, and all-weather capability. Compared to the 325i, the 330xi offered a significant performance upgrade, making it a more appealing option for enthusiasts. However, it was often seen as a compromise compared to the 335i, which offered even more power and performance thanks to its turbocharged engine. Fuel economy was respectable for a performance sedan, averaging around 20 mpg in city driving and 30 mpg on the highway. Reliability was generally good, although some owners reported issues with the cooling system and oil leaks.
Legacy
The E90 330xi has become a popular choice among used car buyers seeking a well-rounded and reliable sports sedan. The N52 engine is known for its durability and relatively low maintenance costs, although regular maintenance is crucial to prevent issues. The xDrive all-wheel-drive system remains a valuable asset in regions with harsh winters. Today, well-maintained examples of the 330xi can be found for reasonable prices, making them an attractive option for those seeking a classic BMW driving experience without breaking the bank. The E90 generation, and the 330xi in particular, represents a high point in BMW’s engineering and design, offering a compelling blend of performance, luxury, and practicality.
