The BMW 3 Series Touring (E91) with the LCI (Life Cycle Impulse) facelift introduced in 2008, represented BMW’s continued commitment to the premium compact executive estate car segment. The 325i xDrive Steptronic variant, produced from 2008 to 2012, occupied a middle ground within the E91 lineup, offering a balance between performance, practicality, and all-weather capability. This model combined a naturally aspirated inline-six engine with BMW’s xDrive all-wheel-drive system and a six-speed automatic transmission, appealing to buyers seeking a refined and capable touring car.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Touring (E91 LCI, facelift 2008) |
| Type (Engine) | 325i (218 Hp) xDrive Steptronic |
| Start of production | 2008 |
| End of production | 2012 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 11.2 l/100 km (21 US mpg, 25.2 UK mpg, 8.9 km/l) |
| Fuel consumption (extra urban) | 6.6 l/100 km (35.6 US mpg, 42.8 UK mpg, 15.2 km/l) |
| Fuel consumption (combined) | 8.3 l/100 km (28.3 US mpg, 34 UK mpg, 12 km/l) |
| CO2 emissions | 194 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.1 sec |
| Acceleration 0 – 62 mph | 8.1 sec |
| Acceleration 0 – 60 mph | 7.7 sec |
| Maximum speed | 240 km/h (149.13 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 7.6 kg/Hp, 131.3 Hp/tonne |
| Weight-to-torque ratio | 6.1 kg/Nm, 162.7 Nm/tonne |
| Power | 218 Hp @ 6100 rpm |
| Power per litre | 72.8 Hp/l |
| Torque | 270 Nm @ 2400-4200 rpm (199.14 lb.-ft. @ 2400-4200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N53B30A |
| 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 |
| 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 | 1660 kg (3659.67 lbs.) |
| Max. weight | 2200 kg (4850.17 lbs.) |
| Max load | 540 kg (1190.5 lbs.) |
| Trunk (boot) space – minimum | 460 l (16.24 cu. ft.) |
| Trunk (boot) space – maximum | 1385 l (48.91 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 with brakes (12%) | 1700 kg (3747.86 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4527 mm (178.23 in.) |
| Width | 1817 mm (71.54 in.) |
| Width with mirrors folded | 1989 mm (78.31 in.) |
| Height | 1418 mm (55.83 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) | 0.31 |
| 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 |
INTRODUCTION
The E91 325i xDrive Steptronic was part of the E90/E91/E92/E93 3 Series range, produced from 2005-2013. The E91 specifically refers to the Touring (estate/wagon) body style. The LCI facelift, introduced in 2008, brought revised styling, updated engines, and improved efficiency. The 325i designation, while historically associated with 2.5-liter engines, was applied to the 3.0-liter N53 inline-six in this generation. The xDrive system provided all-wheel drive, enhancing traction and stability, particularly in adverse weather conditions. The Steptronic transmission was BMW’s name for its six-speed automatic gearbox, offering both fully automatic operation and manual shift control.
Powertrain & Engine Architecture
The heart of the 325i xDrive was the N53B30A engine, a 2,996 cc (182.8 cu in) naturally aspirated inline-six. This engine featured direct fuel injection, a magnesium alloy block, and double-VANOS variable valve timing for both intake and exhaust camshafts. The N53 was known for its smooth power delivery and relatively high specific output. The engine produced 218 horsepower at 6,100 rpm and 270 Nm (199 lb-ft) of torque between 2,400 and 4,200 rpm. The six-speed Steptronic automatic transmission (6F24) was designed to provide smooth and efficient gear changes. It featured adaptive shift programs that adjusted to the driver’s style and driving conditions. The xDrive all-wheel-drive system utilized a multi-plate clutch to distribute torque between the front and rear axles, prioritizing rear-wheel drive under normal conditions but seamlessly engaging the front wheels when traction was lost.
Driving Characteristics
The 325i xDrive Steptronic offered a comfortable and refined driving experience. While not as overtly sporty as the manual transmission or higher-output 335i models, it provided ample power for everyday driving and highway cruising. The automatic transmission, while smooth, could feel slightly less responsive than the six-speed manual. The xDrive system provided excellent grip and stability, particularly on slippery surfaces. The steering was precise and well-weighted, typical of BMW’s steering feel. The gear ratios were tuned for a balance of acceleration and fuel economy, with a focus on providing smooth transitions between gears. Acceleration from 0 to 60 mph took approximately 7.7 seconds, and the car had a top speed of 149 mph.
Equipment & Trim Levels
The 325i xDrive Steptronic typically came standard with features such as automatic climate control, power windows and locks, a multi-function steering wheel, and a BMW Professional radio system. Upholstery was typically cloth or leatherette, with leather being an optional upgrade. Common optional extras included a sunroof, navigation system, premium sound system, sport seats, and parking sensors. The E91 Touring also offered a spacious interior and a versatile cargo area, with a minimum of 460 liters (16.24 cu ft) of storage space and a maximum of 1,385 liters (48.91 cu ft) with the rear seats folded down.
Chassis & Braking
The E91 325i xDrive utilized a MacPherson strut front suspension and a multi-link rear suspension, providing a good balance of ride comfort and handling. The suspension was tuned to be slightly softer than the sport suspension options available on other 3 Series models. Braking was handled by ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and dynamic stability control (DSC) were standard features, enhancing safety and stability. The car’s weight distribution was relatively balanced, contributing to its neutral handling characteristics.
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 critics noted that the automatic transmission could feel slightly less engaging than the manual. Compared to the 335i models, the 325i offered a more affordable entry point into the 3 Series range, while still providing a premium driving experience. Compared to the 320d or 325d diesel variants, the 325i offered a more responsive engine but lower fuel economy. The 325i xDrive was positioned as a practical and versatile option for buyers who needed all-wheel drive and a comfortable interior.
Legacy
The N53 engine, while generally reliable, is known to be susceptible to carbon buildup on the intake valves, which can lead to rough running and reduced performance. Regular maintenance, including walnut blasting to clean the intake valves, is recommended. The six-speed Steptronic transmission is generally reliable, but fluid changes should be performed at the recommended intervals. Today, the E91 325i xDrive Steptronic represents a well-rounded and capable touring car. It offers a good balance of performance, practicality, and comfort, making it a popular choice in the used car market. Its all-wheel-drive system and relatively affordable price point continue to appeal to buyers seeking a premium estate car.
