The BMW 3 Series Sedan (E90 LCI), specifically the 325i xDrive Steptronic variant, represents a significant iteration of BMW’s iconic sports sedan. Produced from 2008 to 2009, this model benefited from the Life Cycle Impulse (LCI) facelift, bringing revised styling, updated technology, and refined engine options to the E90 platform. The 325i xDrive Steptronic occupied a middle ground within the 3 Series lineup, offering a balance between performance, luxury, and all-weather capability. It aimed to appeal to buyers seeking a premium sedan with a comfortable driving experience and the added security of BMW’s xDrive all-wheel-drive system.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (E90 LCI, facelift 2008) |
| Type | 325i (218 Hp) xDrive Steptronic |
| Start of production | 2008 |
| End of production | 2009 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 10.8 l/100 km (21.8 US mpg, 26.2 UK mpg, 9.3 km/l) |
| Fuel consumption (extra urban) | 6.2 l/100 km (37.9 US mpg, 45.6 UK mpg, 16.1 km/l) |
| Fuel consumption (combined) | 7.9 l/100 km (29.8 US mpg, 35.8 UK mpg, 12.7 km/l) |
| CO2 emissions | 189 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.7 sec |
| Acceleration 0 – 62 mph | 7.7 sec |
| Acceleration 0 – 60 mph | 7.3 sec |
| Maximum speed | 242 km/h (150.37 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 7.2 kg/Hp, 139.7 Hp/tonne |
| Weight-to-torque ratio | 5.8 kg/Nm, 173.1 Nm/tonne |
| Power | 218 Hp @ 6100 rpm |
| Torque | 270 Nm @ 2400-4200 rpm (199.14 lb.-ft. @ 2400-4200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N53B30U0 |
| 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 | 12:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC, Double-VANOS |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 1560 kg (3439.21 lbs.) |
| Max. weight | 2080 kg (4585.62 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space (minimum) | 460 l (16.24 cu. ft.) |
| Fuel tank capacity | 63 l (16.64 US gal | 13.86 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load (brakes 8%) | 1700 kg (3747.86 lbs.) |
| Permitted trailer load (brakes 12%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load (no brakes) | 745 kg (1642.44 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 | 1506 mm (59.29 in.) |
| Rear track | 1535 mm (60.43 in.) |
| Front overhang | 757 mm (29.8 in.) |
| Rear overhang | 1014 mm (39.92 in.) |
| Drag coefficient (Cd) | 0.30 |
| Drivetrain Architecture | ICE driving all four wheels permanently |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 6 |
| Gearbox type | Automatic transmission Steptronic |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer |
| 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 (Front/Rear) | 205/55 R16 / 225/45 R17; 205/55 R16 / 225/45 R17; 255/40 R17 |
| Wheel rims size (Front/Rear) | 7J x 16 / 8J x 17; 7J x 16 / 8J x 17; 8.5J x 17 |
Powertrain & Engine Architecture
The heart of the 325i xDrive Steptronic is the N53B30U0 3.0-liter inline-six engine. This naturally aspirated engine, a hallmark of BMW’s engineering prowess, produced 218 horsepower at 6,100 rpm and 270 Nm (199 lb-ft) of torque between 2,400 and 4,200 rpm. The N53 featured direct fuel injection, a technology that improved fuel efficiency and power output compared to earlier port-injected engines. The engine also utilized BMW’s Double-VANOS variable valve timing system, optimizing valve lift and timing for enhanced performance across the rev range. Paired with the engine was a six-speed Steptronic automatic transmission, offering smooth and responsive gear changes. This transmission was designed to provide both comfort and performance, with manual shift capabilities for more engaging driving. The xDrive all-wheel-drive system distributed power between the front and rear axles as needed, enhancing traction and stability in various driving conditions.
Driving Characteristics
The 325i xDrive Steptronic offered a refined and comfortable driving experience. While not as overtly sporty as the manual transmission or higher-output 335i models, the 325i provided ample power for everyday driving and confident highway cruising. The automatic transmission, while smooth, did result in a slight reduction in acceleration compared to the six-speed manual. The xDrive system provided excellent grip, particularly in inclement weather, inspiring confidence on slippery roads. The steering was precise and well-weighted, typical of BMW’s engineering philosophy. The gear ratios were tuned for a balance of fuel efficiency and responsiveness, with the transmission readily downshifting when needed for quicker acceleration.
Equipment & Trim Levels
The 325i xDrive Steptronic came standard with a comprehensive list of features, including automatic climate control, power-adjustable front seats, a premium sound system, and BMW’s iDrive infotainment system. Interior upholstery typically consisted of cloth or leatherette, with optional full leather available. Common options included a sunroof, navigation system, heated seats, and upgraded audio systems. The LCI facelift brought subtle interior revisions, including updated trim materials and improved ergonomics. Exterior features included alloy wheels, fog lights, and chrome accents.
Chassis & Braking
The E90 3 Series utilized a MacPherson strut front suspension and a multi-link rear suspension, providing a comfortable ride and precise handling. The 325i xDrive Steptronic featured ventilated disc brakes on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System) was standard, enhancing safety and control during emergency braking. The xDrive system added to the vehicle’s stability by distributing torque to the wheels with the most grip.
Market Reception & Comparison
The 325i xDrive Steptronic was generally well-received by automotive critics. It was praised for its comfortable ride, refined engine, and all-weather capability. However, some reviewers noted that the automatic transmission dulled the driving experience compared to the manual version. Compared to the 335i models, the 325i offered a more affordable entry point into the 3 Series range, albeit with less power. Fuel economy was respectable for a premium sedan, averaging around 29.8 US mpg in combined driving. Reliability was generally good, although some owners reported issues with the fuel pump and cooling system, common concerns for N53-powered BMWs.
Legacy
The E90 325i xDrive Steptronic remains a popular choice in the used car market. Its combination of luxury, performance, and all-wheel-drive capability makes it a versatile and appealing option for buyers seeking a premium sedan. While the N53 engine requires diligent maintenance, particularly regarding the fuel pump and cooling system, it is generally a reliable powertrain when properly cared for. The E90 3 Series, as a whole, is considered a benchmark in the sports sedan segment, and the 325i xDrive Steptronic represents a well-rounded and enjoyable iteration of this iconic model.
