The BMW 3 Series Sedan (E90 LCI), specifically the 330d xDrive Steptronic variant, represents a significant iteration of BMW’s iconic sports sedan. Produced from 2009 to 2012, this model arrived as part of the Life Cycle Impulse (LCI) facelift for the E90 generation. Positioned as a mid-range offering within the 3 Series lineup, the 330d xDrive Steptronic combined a potent diesel engine with BMW’s xDrive all-wheel-drive system and a six-speed automatic transmission, appealing to drivers seeking a balance of performance, efficiency, and all-weather capability. It built upon the established success of the E90 platform (introduced in 2005), addressing some criticisms of the initial launch and refining the overall driving experience.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (E90 LCI, facelift 2008) |
| Type (Engine) | 330d (245 Hp) xDrive Steptronic |
| Start of production | 2009 |
| End of production | 2012 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 8.8 l/100 km (26.7 US mpg, 32.1 UK mpg, 11.4 km/l) |
| Fuel consumption (extra urban) | 5.7 l/100 km (41.3 US mpg, 49.6 UK mpg, 17.5 km/l) |
| Fuel consumption (combined) | 6.8 l/100 km (34.6 US mpg, 41.5 UK mpg, 14.7 km/l) |
| CO2 emissions | 178 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 6 sec |
| Acceleration 0 – 62 mph | 6 sec |
| Acceleration 0 – 60 mph | 5.7 sec |
| Maximum speed | 247 km/h (153.48 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 6.7 kg/Hp, 148.5 Hp/tonne |
| Weight-to-torque ratio | 3.2 kg/Nm, 315.2 Nm/tonne |
| Power | 245 Hp @ 4000 rpm |
| Torque | 520 Nm @ 1750-3000 rpm (383.53 lb.-ft. @ 1750-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N57D30A |
| Engine displacement | 2993 cm3 (182.64 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90 mm (3.54 in.) |
| Compression ratio | 16.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Coolant | 7.9 l (8.35 US qt | 6.95 UK qt) |
| Kerb Weight | 1650 kg (3637.63 lbs.) |
| Max. weight | 2170 kg (4784.03 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space – minimum | 460 l (16.24 cu. ft.) |
| Fuel tank capacity | 61 l (16.11 US gal | 13.42 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4531 mm (178.39 in.) |
| Width | 1817 mm (71.54 in.) |
| Width including mirrors | 1989 mm (78.31 in.) |
| Height | 1421 mm (55.94 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1500 mm (59.06 in.) |
| Rear (Back) track | 1529 mm (60.2 in.) |
| Ride height (ground clearance) | 140 mm (5.51 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle (turning diameter) | 11.8 m (38.71 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front suspension | Independent coil spring |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/45 R17 91W |
| Wheel rims size | 8J x 17 |
Powertrain & Engine Architecture
The heart of the 330d xDrive Steptronic is the N57D30A, a 3.0-liter inline-six diesel engine. This engine is a cornerstone of BMW’s diesel technology, known for its smooth operation and strong torque output. The N57 featured a common-rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A variable geometry turbocharger (VGT) with intercooling further enhanced performance, providing a broad torque curve. The engine produced 245 horsepower at 4000 rpm and a substantial 520 Nm (383 lb-ft) of torque between 1750 and 3000 rpm. The six-speed Steptronic automatic transmission was specifically tuned to complement the engine’s characteristics, offering smooth shifts and responsive performance. Manual shift capability was also included, allowing drivers to take more control when desired.
Driving Characteristics
The 330d xDrive Steptronic offered a compelling driving experience. The xDrive all-wheel-drive system provided excellent traction in all conditions, enhancing stability and confidence, particularly in inclement weather. While not as overtly sporty as the 335i or M3 variants, the 330d delivered brisk acceleration – 0 to 60 mph in around 5.7 seconds – and strong mid-range power. The automatic transmission, while smooth, could sometimes feel slightly hesitant during quick downshifts compared to the more aggressive programming found in sportier models. The emphasis was on effortless cruising and relaxed performance rather than outright track capability. Compared to the 320d, the 330d offered a significant power upgrade, while the 335i provided more horsepower but at the expense of fuel economy.
Equipment & Trim Levels
The 330d xDrive Steptronic typically came well-equipped, reflecting its mid-range positioning. Standard features included leather upholstery, automatic climate control, a multi-function steering wheel, and BMW’s iDrive infotainment system. Optional extras were plentiful, including navigation, premium sound systems, sport seats, and various driver assistance features like parking sensors and adaptive headlights. Interior trim options ranged from wood veneers to aluminum accents, allowing for some personalization. The LCI facelift brought subtle interior revisions, including updated iDrive graphics and improved material quality.
Chassis & Braking
The E90 3 Series utilized a sophisticated chassis design featuring independent suspension all around. The front suspension employed MacPherson struts, while the rear featured a multi-link setup. This configuration provided a good balance of ride comfort and handling precision. The 330d xDrive Steptronic was equipped with ventilated disc brakes on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System) and electronic stability control were standard safety features. The xDrive system intelligently distributed torque between the front and rear axles, optimizing traction and stability.
Market Reception & Comparison
The 330d xDrive Steptronic was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and all-weather capability. Fuel economy was a significant selling point, with combined figures around 34.6 US mpg. Compared to the 320d, the 330d offered a noticeable performance boost, justifying the higher price tag for many buyers. However, some critics noted that the automatic transmission wasn’t as engaging as the manual option, and the car lacked the outright sporting character of the 335i. Reliability was generally good, although diesel particulate filter (DPF) issues could occur with infrequent long-distance driving.
Legacy
The N57 engine family, including the N57D30A found in the 330d, has proven to be remarkably durable. Well-maintained examples continue to provide reliable service today. The 330d xDrive Steptronic remains a popular choice in the used car market, appealing to buyers seeking a comfortable, efficient, and capable sports sedan. While newer BMW models offer more advanced technology, the E90 330d retains a loyal following due to its balanced driving dynamics and proven reliability. The combination of a potent diesel engine, all-wheel drive, and a comfortable interior makes it a compelling option for those seeking a practical yet rewarding driving experience.
