The BMW 3 Series Sedan (E90 LCI), specifically the 328i variant equipped with the Steptronic automatic transmission, represents a significant iteration of BMW’s iconic sports sedan. Produced from 2008 to 2011, this facelifted E90 aimed to refine the already successful E90 platform, addressing some criticisms of the original launch model while enhancing its overall appeal. The 328i, positioned as a mid-range offering within the 3 Series lineup, provided a balance between performance, luxury, and fuel efficiency, making it a popular choice for both enthusiasts and everyday drivers. It sat above the base 325i and below the performance-oriented 335i.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (E90 LCI, facelift 2008) |
| Type (Engine) | 328i (230 Hp) Steptronic |
| Start of production | 2008 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 11 l/100 km (21.4 US mpg, 25.7 UK mpg, 9.1 km/l) |
| Fuel consumption (economy) – extra urban | 6.9 l/100 km (34.1 US mpg, 40.9 UK mpg, 14.5 km/l) |
| Fuel consumption (economy) – combined | 9.1 l/100 km (25.8 US mpg, 31 UK mpg, 11 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.3 sec |
| Acceleration 0 – 62 mph | 7.3 sec |
| Acceleration 0 – 60 mph | 6.9 sec |
| Maximum speed | 210 km/h (130.49 mph), Electronically limited |
| Weight-to-power ratio | 6.8 kg/Hp, 147.9 Hp/tonne |
| Weight-to-torque ratio | 5.8 kg/Nm, 173.6 Nm/tonne |
| Power | 230 Hp @ 6500 rpm |
| Power per litre | 76.8 Hp/l |
| Torque | 270 Nm @ 2750 rpm (199.14 lb.-ft. @ 2750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N52B30 |
| 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 |
| Valvetrain | DOHC, Valvetronic |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 1555 kg (3428.19 lbs.) |
| Max. weight | 2035 kg (4486.41 lbs.) |
| Max load | 480 kg (1058.22 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.) |
| Length | 4541 mm (178.78 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.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11 m (36.09 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission Steptronic |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Transverse stabilizer |
| Front brakes | Ventilated discs, 312 mm |
| Rear brakes | Ventilated discs, 300 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | Front wheel tires: 225/45 R17Rear wheel tires: 225/45 R17; 255/40 R17 |
| Wheel rims size | Front wheel rims: 8J x 17Rear wheel rims: 8J x 17; 8.5J x17 |
INTRODUCTION
The E90 LCI 328i Steptronic was a key model in BMW’s lineup during its production run. The “LCI” (Life Cycle Impulse) designation signifies a comprehensive facelift, bringing revised styling cues, updated technology, and refined engine options. The 328i, powered by the naturally aspirated 3.0-liter N52B30 inline-six engine, offered a compelling blend of performance and efficiency. The Steptronic automatic transmission, a six-speed unit, provided smooth and convenient gear changes, appealing to drivers who prioritized comfort over the more engaging experience of a manual gearbox. This combination aimed to deliver a refined driving experience suitable for both daily commutes and spirited weekend drives.
Powertrain & Engine Architecture
At the heart of the 328i Steptronic lies the N52B30 engine, a 3.0-liter (2996 cc) naturally aspirated inline-six. This engine is renowned for its smooth power delivery and characteristic BMW sound. It utilizes a double overhead camshaft (DOHC) valvetrain with BMW’s Valvetronic technology, which allows for variable valve lift and timing, optimizing both power and fuel efficiency. Fuel is delivered via multi-port fuel injection. The engine produces 230 horsepower at 6500 rpm and 270 Nm (199 lb-ft) of torque at 2750 rpm. The Steptronic transmission is a six-speed automatic, offering both fully automatic operation and a manual shift mode. It features adaptive shift programs that adjust gear changes based on driving style and road conditions.
Driving Characteristics
The 328i Steptronic offered a comfortable and refined driving experience. While not as overtly sporty as the 335i, it provided ample power for everyday driving and confident acceleration. The automatic transmission, while smooth, did slightly diminish the sense of connection to the engine compared to the six-speed manual. The gear ratios were tuned for a balance of fuel economy and responsiveness. Acceleration from 0 to 60 mph took approximately 6.9 seconds, and the car was electronically limited to a top speed of 130.49 mph. The N52 engine’s linear power delivery made it predictable and easy to control, making it a forgiving car for drivers of all skill levels.
Equipment & Trim Levels
The 328i Steptronic came standard with a respectable array of features, including automatic climate control, power windows and locks, a multi-function steering wheel, and a premium audio system. Upholstery typically consisted of cloth or leatherette, with leather being an optional upgrade. Common optional extras included a sunroof, navigation system, heated seats, and upgraded wheels. The LCI facelift brought subtle interior revisions, including updated trim materials and improved ergonomics. The overall interior design was focused on providing a comfortable and driver-focused environment.
Chassis & Braking
The E90 328i utilized a MacPherson strut front suspension and a multi-link rear suspension, providing a good balance of ride comfort and handling precision. Stabilizer bars were fitted to both axles to reduce body roll during cornering. The braking system consisted of ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) was standard. The chassis was designed to be relatively lightweight, contributing to the car’s agile handling characteristics.
Market Reception & Comparison
The E90 LCI 328i Steptronic was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and well-appointed interior. However, some critics noted that the automatic transmission lacked the engagement of the manual gearbox, and that the car wasn’t quite as sporty as its competitors. Compared to the 325i, the 328i offered a noticeable power increase and a more premium feel. Compared to the 335i, it offered a more affordable price point but lacked the turbocharged engine’s extra performance. Fuel economy was respectable for its class, averaging around 25.8 US mpg in combined driving.
Legacy
The N52B30 engine, found in the E90 328i, is known for its reliability and durability, provided it receives regular maintenance. The Steptronic transmission is also generally reliable, although like any automatic transmission, it can be susceptible to issues if not properly serviced. Today, the E90 328i Steptronic represents a relatively affordable entry point into BMW ownership. It remains a popular choice for enthusiasts and everyday drivers alike, offering a blend of performance, luxury, and reliability that continues to appeal to a wide range of buyers. Well-maintained examples are increasingly sought after by collectors and enthusiasts who appreciate the classic BMW driving experience.
