The BMW 3 Series Sedan (E90 LCI), specifically the 320d xDrive variant produced from 2010 to 2012, represented a mid-cycle refresh of the E90 generation. This model, powered by a 2.0-liter turbocharged diesel engine producing 184 horsepower, occupied a crucial position in BMW’s lineup as a fuel-efficient and capable all-wheel-drive option. The “LCI” (Life Cycle Impulse) facelift brought revised styling, updated technology, and improved efficiency compared to the pre-facelift E90 models. It aimed to balance practicality, performance, and BMW’s signature driving experience within the compact executive car segment.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (E90 LCI, facelift 2008) |
| Type (Engine) | 320d (184 Hp) xDrive |
| Start of production | 2010 |
| End of production | 2012 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 4 |
| Doors | 4 |
| Fuel consumption (urban) | 6.4 l/100 km (36.8 US mpg, 44.1 UK mpg, 15.6 km/l) |
| Fuel consumption (extra urban) | 4.5 l/100 km (52.3 US mpg, 62.8 UK mpg, 22.2 km/l) |
| Fuel consumption (combined) | 5.2 l/100 km (45.2 US mpg, 54.3 UK mpg, 19.2 km/l) |
| CO2 emissions | 137 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 | 8.3 kg/Hp, 120.7 Hp/tonne |
| Weight-to-torque ratio | 4 kg/Nm, 249.2 Nm/tonne |
| Power | 184 Hp @ 4000 rpm |
| Torque | 380 Nm @ 1900-2750 rpm (280.27 lb.-ft. @ 1900-2750 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 | 16.5:1 |
| 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 | 1525 kg (3362.05 lbs.) |
| Max. weight | 2045 kg (4508.45 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.) |
| 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) | 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, 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 xDrive was the N47D20C, a 2.0-liter inline-four diesel engine. This engine was a key component of BMW’s EfficientDynamics strategy, focusing on maximizing fuel economy and reducing emissions. The N47 featured second-generation common rail direct injection, operating at pressures up to 1,800 bar, for precise fuel delivery and optimized combustion. A variable geometry turbocharger (VGT) with intercooling further enhanced performance and responsiveness. The engine produced 184 horsepower at 4,000 rpm and a substantial 380 Nm (280 lb-ft) of torque between 1,900 and 2,750 rpm. This broad torque curve provided strong pulling power across a wide range of engine speeds. The xDrive system, BMW’s all-wheel-drive technology, utilized a multi-plate clutch to distribute torque between the front and rear axles, enhancing traction and stability in various driving conditions. The standard transmission was a six-speed manual, although a six-speed automatic transmission was also available as an option.
Driving Characteristics
The 320d xDrive offered a balanced driving experience. While not as overtly sporty as the 335i or M3 models, it provided ample power for everyday driving and confident highway cruising. The xDrive system instilled a sense of security, particularly in inclement weather. The six-speed manual transmission offered precise shifts, while the optional automatic provided smooth and responsive gear changes. Compared to the higher-output 335i, the 320d prioritized fuel efficiency and torque over outright horsepower. The 320d’s torque-rich engine meant less frequent gear changes were needed, making it a comfortable long-distance cruiser. The manual transmission versions felt more engaging, while the automatic prioritized ease of use.
Equipment & Trim Levels
The 320d xDrive typically came standard with features such as automatic climate control, power windows and locks, a multi-function steering wheel, and BMW’s iDrive infotainment system. Upholstery was typically cloth, with leather options available. Common optional extras included a sunroof, navigation system, upgraded audio system, and sport seats. The xDrive models often included additional driver assistance systems, such as dynamic traction control and hill descent control. Trim levels varied by market, but generally offered packages that bundled popular options together.
Chassis & Braking
The E90 LCI chassis featured a sophisticated suspension setup designed to balance comfort and handling. The front suspension utilized independent coil springs and struts, while the rear employed an independent multi-link suspension. This configuration minimized body roll and provided a stable platform for cornering. The 320d xDrive was equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESC) were standard features, enhancing safety and control.
Market Reception & Comparison
The 320d xDrive was well-received by automotive critics for its fuel efficiency, comfortable ride, and all-weather capability. It was often praised as a practical and sensible choice for buyers seeking a premium compact sedan. Compared to the more powerful 335i, the 320d offered significantly better fuel economy, making it an attractive option for those prioritizing running costs. The 320d also proved to be more reliable than some of the more complex 335i variants, particularly those with the N54 engine. However, some critics noted that the 320d lacked the outright performance and excitement of its more powerful siblings.
Legacy
The N47 engine, while generally reliable, did experience some issues with timing chain wear, particularly in early production models. Regular oil changes and preventative maintenance are crucial for ensuring the longevity of this engine. Today, the E90 320d xDrive represents a relatively affordable entry point into BMW ownership. Its combination of fuel efficiency, practicality, and all-wheel-drive capability makes it a popular choice in the used car market. Well-maintained examples continue to provide reliable transportation and a taste of the BMW driving experience.
