The BMW E91 320d Touring, produced from 2005 to 2007, represents BMW’s entry into the compact executive wagon segment with a diesel powertrain. Positioned as a more practical alternative to the 3 Series sedan (E90), the E91 offered the same driving dynamics and build quality in a versatile, five-door body style. The 320d variant, equipped with the Steptronic automatic transmission, was a popular choice for buyers prioritizing fuel efficiency and ease of use over outright performance. It sat in the lower-mid range of the E91 lineup, below the more powerful 330d and 335i models, and above the base 318d where available. This model was primarily sold in the European market, where wagons hold a significantly larger share of the automotive landscape than in North America.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Touring (E91) |
| Type (Engine) | 320d (163 Hp) Steptronic |
| Start of production | 2005 |
| End of production | 2007 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 9.4 l/100 km (25 US mpg) |
| Fuel consumption (extra urban) | 5.5 l/100 km (42.8 US mpg) |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.8 sec |
| Acceleration 0 – 62 mph | 8.8 sec |
| Acceleration 0 – 60 mph | 8.4 sec |
| Maximum speed | 218 km/h (135.46 mph) |
| Weight-to-power ratio | 9.3 kg/Hp |
| Weight-to-torque ratio | 4.4 kg/Nm |
| Power | 163 Hp @ 4000 rpm |
| Torque | 340 Nm @ 2000 rpm (250.77 lb.-ft. @ 2000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M47D20TU2 |
| 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 | 17:1 |
| 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 capacity | 7.9 l (8.35 US qt | 6.95 UK qt) |
| Kerb Weight | 1510 kg (3328.98 lbs.) |
| Max. weight | 2045 kg (4508.45 lbs.) |
| Max load | 535 kg (1179.47 lbs.) |
| Trunk (boot) space – minimum | 460 l (16.24 cu. ft.) |
| Trunk (boot) space – maximum | 1385 l (48.91 cu. ft.) |
| Fuel tank capacity | 61 l (16.11 US gal | 13.42 UK gal) |
| Length | 4520 mm (177.95 in.) |
| Width | 1817 mm (71.54 in.) |
| Height | 1418 mm (55.83 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1500 mm (59.06 in.) |
| Rear track | 1513 mm (59.57 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 6 |
| Gearbox type | Automatic transmission |
| Front suspension | Spring Strut |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Tires size | 205/55 R16 |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
The heart of the E91 320d Touring is the M47D20TU2, a 2.0-liter inline-four diesel engine. This engine is a direct descendant of BMW’s long-running M47 series, known for its robust construction and relatively simple design. The ‘TU2’ designation indicates an updated version with improvements to fuel injection and turbocharging. The engine utilizes a second-generation common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A variable geometry turbocharger (VGT) with an intercooler further enhances performance and efficiency. The engine produces 163 horsepower at 4000 rpm and a substantial 340 Nm (250 lb-ft) of torque at just 2000 rpm. The Steptronic automatic transmission is a six-speed unit, offering smooth shifts and a torque converter for enhanced drivability. This transmission was known for its reliability and responsiveness, although it lacked the lightning-fast shifts of some dual-clutch transmissions available in higher-end BMW models.
Driving Characteristics
The 320d Touring with the Steptronic transmission delivers a comfortable and refined driving experience. While not a sports car, the engine’s ample torque provides brisk acceleration, especially in the mid-range. The 0-60 mph sprint takes around 8.4 seconds, and the car feels capable on the highway. The automatic transmission is well-matched to the engine’s characteristics, providing smooth gear changes and minimizing turbo lag. Compared to the six-speed manual version, the Steptronic offers greater convenience in urban driving, but some drivers may find it less engaging. The automatic transmission’s programming prioritizes fuel economy, which is a key strength of this variant. The E91’s rear-wheel-drive layout contributes to balanced handling, although it can be less forgiving in slippery conditions than all-wheel-drive alternatives.
Equipment & Trim Levels
The 320d Touring typically came standard with features such as automatic climate control, power windows and mirrors, a multi-function steering wheel, and a basic audio system. Upholstery was typically cloth, although leather options were available. Optional extras included a sunroof, navigation system, upgraded audio, parking sensors, and heated seats. Trim levels varied depending on the market, but generally, the 320d Touring offered a good level of standard equipment for its price point. Sport packages were available, adding features like sport seats, a sport suspension, and unique alloy wheels.
Chassis & Braking
The E91 320d Touring utilizes a MacPherson strut front suspension and a multi-link rear suspension, providing a comfortable ride and good handling. The suspension was tuned to balance comfort and agility, making it suitable for both daily commuting and longer journeys. Brakes are ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) is standard, along with electronic brake-force distribution (EBD). The chassis is relatively lightweight, contributing to the car’s nimble handling. Stabilizer bars are fitted front and rear to reduce body roll during cornering.
Market Reception & Comparison
The E91 320d Touring was generally well-received by automotive critics. It was praised for its practicality, fuel efficiency, and comfortable ride. However, some critics noted that the engine lacked the outright performance of its larger counterparts. Compared to the 330d, the 320d offered significantly lower running costs but less power. The 320d also provided a more economical alternative to the petrol-powered 320i and 330i models. In terms of reliability, the M47D20TU2 engine is generally considered to be robust, but like all diesel engines, it is susceptible to issues with the fuel injection system and turbocharger if not properly maintained.
Legacy
The E91 320d Touring remains a popular choice in the used car market, particularly in Europe. Its combination of practicality, fuel efficiency, and BMW build quality makes it an attractive option for buyers seeking a versatile and reliable wagon. The M47D20TU2 engine, while not the most powerful, is known for its longevity and relatively low maintenance costs. However, potential buyers should be aware of the potential for issues with the diesel particulate filter (DPF) and the fuel injection system, especially on cars with high mileage. Proper maintenance and regular servicing are essential to ensure the long-term reliability of this powertrain.
