The BMW 3 Series Sedan (E90 LCI), specifically the 320d variant producing 177 horsepower, represents a significant iteration of BMW’s iconic sports sedan. Introduced with the Life Cycle Impulse (LCI) facelift in late 2008 for the 2009 model year and continuing through 2010, this version aimed to refine the E90 platform with updated styling, improved efficiency, and enhanced technology. The 320d occupied a crucial position in the 3 Series lineup, serving as the entry-level diesel offering, balancing fuel economy with respectable performance. It was primarily marketed towards European consumers seeking a premium, efficient, and capable sedan for daily commuting and longer journeys.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (E90 LCI, facelift 2008) |
| Type (Engine) | 320d (177 Hp) |
| Start of production | 2009 |
| End of production | 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6 l/100 km (39.2 US mpg, 47.1 UK mpg, 16.7 km/l) |
| Fuel consumption (extra urban) | 4.1 l/100 km (57.4 US mpg, 68.9 UK mpg, 24.4 km/l) |
| Fuel consumption (combined) | 4.8 l/100 km (49 US mpg, 58.9 UK mpg, 20.8 km/l) |
| CO2 emissions | 128 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.9 sec |
| Acceleration 0 – 62 mph | 7.9 sec |
| Acceleration 0 – 60 mph | 7.5 sec |
| Maximum speed | 230 km/h (142.92 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 8.1 kg/Hp, 123.8 Hp/tonne |
| Weight-to-torque ratio | 4.1 kg/Nm, 244.8 Nm/tonne |
| Power | 177 Hp @ 4000 rpm |
| Power per litre | 88.7 Hp/l |
| Torque | 350 Nm @ 1750-3000 rpm (258.15 lb.-ft. @ 1750-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N47D20C |
| Engine displacement | 1995 cm3 (121.74 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90 mm (3.54 in.) |
| Compression ratio | 16:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 5.2 l (5.49 US qt | 4.58 UK qt) |
| Coolant | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Kerb Weight | 1430 kg (3152.61 lbs.) |
| Max. weight | 1950 kg (4299.01 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%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load without 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 (Back) track | 1535 mm (60.43 in.) |
| Ride height (ground clearance) | 144 mm (5.67 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle (turning diameter) | 11.0 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, manual 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 | 205/55 R16 91V |
| Wheel rims size | 7J x 16 |
Powertrain & Engine Architecture
The heart of the 320d LCI is the N47D20C, a 2.0-liter inline-four diesel engine. This engine represented a significant advancement in BMW’s diesel technology, featuring second-generation common rail direct injection, a variable geometry turbocharger, and an intercooler. The common rail system, operating at extremely high pressures, allowed for precise fuel metering and optimized combustion. The N47 engine family was known for its relatively complex valvetrain, utilizing a chain-driven double overhead camshaft (DOHC) configuration with four valves per cylinder. This design contributed to the engine’s efficiency and power output. The 320d LCI utilized a six-speed manual transmission as standard, delivering power to the rear wheels. The transmission was chosen for its balance of efficiency and driver engagement.
Driving Characteristics
The 177 hp and 350 Nm (258 lb-ft) of torque produced by the N47D20C engine provided the 320d LCI with a respectable level of performance. Acceleration from 0 to 60 mph took approximately 7.5 seconds, and the car could reach a top speed of 143 mph. While not as quick as the higher-powered 335i models, the 320d offered ample power for everyday driving and comfortable highway cruising. The torque curve was relatively flat, providing strong pulling power from low engine speeds. The manual transmission offered precise shifts and allowed drivers to fully utilize the engine’s capabilities. Compared to the automatic transmission option, the manual version provided a more engaging driving experience and slightly improved fuel economy.
Equipment & Trim Levels
The 320d LCI typically came equipped with a generous array of standard features, including automatic climate control, power windows and mirrors, a multi-function steering wheel, and a basic audio system. The LCI facelift brought subtle interior revisions, including updated trim materials and improved switchgear. Optional extras included leather upholstery, a premium sound system, navigation, parking sensors, and a sunroof. The 320d could be further customized with various packages, such as the Sport Package, which added sport seats, a sport suspension, and unique exterior styling cues.
Chassis & Braking
The E90 3 Series featured a sophisticated chassis design, with independent suspension at all four corners. The front suspension utilized MacPherson struts, while the rear suspension employed a multi-link setup. This configuration provided a good balance of ride comfort and handling precision. The 320d LCI was equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) was standard, enhancing safety and stability during emergency braking situations. The suspension tuning was generally geared towards comfort, but the car still offered a reasonably sporty driving experience.
Market Reception & Comparison
The 320d LCI was generally well-received by automotive critics, who praised its fuel efficiency, refined engine, and comfortable ride. It was often compared to its rivals, such as the Audi A4 TDI and the Mercedes-Benz C-Class CDI. The 320d typically offered a more engaging driving experience than its competitors, but the Audi A4 TDI was often considered to have a slightly more refined interior. In terms of reliability, the N47 engine family had some known issues with timing chain wear, which could lead to costly repairs. However, with proper maintenance, the 320d LCI proved to be a relatively reliable vehicle.
Legacy
The BMW 320d LCI (E90) remains a popular choice in the used car market, particularly in Europe. Its combination of fuel efficiency, performance, and practicality makes it an attractive option for buyers seeking a premium sedan. While the N47 engine’s timing chain issue is a concern, many owners have successfully addressed this problem with preventative maintenance or repairs. The E90 3 Series, in general, is considered a well-built and durable car, and the 320d LCI continues to offer a compelling driving experience for those who appreciate a blend of efficiency and BMW’s signature handling characteristics.
