The BMW 3 Series Sedan (E46) 330xd, produced from 1999 to 2001, represented BMW’s entry into the diesel-powered all-wheel-drive market within the highly successful E46 generation. Positioned as a premium offering, the 330xd aimed to combine the driving dynamics expected of a BMW with the fuel efficiency and torque characteristics of a modern diesel engine, coupled with the added security of xDrive all-wheel drive. It was a key model in expanding the 3 Series’ appeal to customers seeking a versatile and refined vehicle for all-weather conditions and long-distance driving. The E46 platform, known internally as the ‘Compact’ platform, was a significant leap forward in terms of chassis rigidity and overall refinement compared to its predecessor, the E36.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (E46) |
| Type (Engine) | 330xd (184 Hp) |
| Start of production | 1999 |
| End of production | 2001 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 10.1 l/100 km (23.3 US mpg) |
| Fuel consumption (extra urban) | 6.2 l/100 km (37.9 US mpg) |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.5 sec |
| Acceleration 0 – 62 mph | 8.5 sec |
| Acceleration 0 – 60 mph | 8.1 sec |
| Maximum speed | 224 km/h (139.19 mph) |
| Weight-to-power ratio | 8.8 kg/Hp |
| Weight-to-torque ratio | 4.2 kg/Nm |
| Power | 184 Hp @ 4000 rpm |
| Torque | 390 Nm @ 1750 rpm (287.65 lb.-ft. @ 1750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M57D30 |
| Engine displacement | 2926 cm3 (178.56 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 88 mm (3.46 in.) |
| Compression ratio | 18:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant capacity | 10.2 l (10.78 US qt | 8.97 UK qt) |
| Kerb Weight | 1620 kg (3571.49 lbs.) |
| Max. weight | 2120 kg (4673.8 lbs.) |
| Max load | 500 kg (1102.31 lbs.) |
| Trunk (boot) space – minimum | 440 l (15.54 cu. ft.) |
| Fuel tank capacity | 63 l (16.64 US gal | 13.86 UK gal) |
| Length | 4471 mm (176.02 in.) |
| Width | 1739 mm (68.46 in.) |
| Height | 1434 mm (56.46 in.) |
| Wheelbase | 2725 mm (107.28 in.) |
| Front track | 1471 mm (57.91 in.) |
| Rear track | 1483 mm (58.39 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 5 |
| Gearbox type | Manual transmission |
| Front suspension | Spring Strut |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 225/45 R17 |
| Wheel rims size | 8J x 17 |
Powertrain & Engine Architecture
The heart of the 330xd is the M57D30, a 2.9-liter inline-six diesel engine. This engine was a significant advancement for BMW, utilizing common rail direct injection technology to deliver improved fuel efficiency, reduced emissions, and increased power output compared to earlier diesel offerings. The M57D30 produced 184 horsepower at 4000 rpm and a substantial 390 Nm (287.65 lb-ft) of torque at just 1750 rpm. This torque curve provided strong acceleration in everyday driving situations. The engine featured a single turbocharger with an intercooler to enhance performance. The five-speed manual transmission was the only gearbox option available for this variant, chosen for its robustness and driver engagement. The engine’s longitudinal mounting and rear-wheel-drive bias, combined with BMW’s xDrive all-wheel-drive system, contributed to balanced handling characteristics.
Driving Characteristics
The 330xd offered a unique driving experience within the E46 range. The diesel engine’s abundant low-end torque meant strong acceleration from a standstill and effortless overtaking. While not as rev-happy as the gasoline-powered 330i, the 330xd provided a relaxed and confident driving experience, particularly on long journeys. The manual transmission, while requiring more driver involvement than an automatic, allowed for precise control and maximized the engine’s potential. The xDrive all-wheel-drive system provided excellent traction in adverse weather conditions, enhancing stability and safety. Compared to the 320d, the 330xd offered a noticeable performance upgrade, while the 330i provided a more sporty and engaging, but less fuel-efficient, experience.
Equipment & Trim Levels
The 330xd typically came well-equipped, reflecting its position as a premium model. Standard features included air conditioning, power windows, central locking, and an upgraded audio system. Interior upholstery was typically cloth, with leather options available as an upgrade. Dashboard trim could be specified in wood or metallic finishes. Optional extras included a sunroof, heated seats, automatic climate control, and BMW’s navigation system. The 330xd was often seen with the ‘Sport’ package, which added features like sport seats, a sport suspension, and unique alloy wheels.
Chassis & Braking
The E46 3 Series boasted a well-engineered chassis, featuring a MacPherson strut front suspension and a multi-link rear suspension. The 330xd’s suspension was tuned to provide a balance between comfort and handling. Braking duties were handled by ventilated discs at the front and solid discs at the rear, equipped with ABS (Anti-lock Braking System) as standard. The all-wheel-drive system added weight compared to rear-wheel-drive models, necessitating slightly stiffer spring rates to maintain handling balance.
Market Reception & Comparison
The 330xd was generally well-received by automotive critics. It was praised for its fuel efficiency, strong performance, and all-weather capability. However, some reviewers noted that the diesel engine lacked the refinement and responsiveness of the gasoline engines. Compared to the 320d, the 330xd offered a significant power boost, justifying its higher price tag. Against the 330i, the 330xd traded some performance for significantly improved fuel economy. Reliability was generally good, although diesel engines can be more susceptible to issues with the fuel injection system and turbocharger over time.
Legacy
The E46 330xd has become a sought-after used car, particularly among enthusiasts who appreciate its blend of performance, fuel efficiency, and all-weather capability. The M57D30 engine is known for its durability, and well-maintained examples can still provide reliable service today. However, potential buyers should be aware of the potential for age-related issues, such as worn suspension components and corrosion. The 330xd represents a significant milestone in BMW’s diesel strategy, paving the way for the widespread adoption of diesel engines in the 3 Series lineup. Its combination of performance and practicality continues to appeal to drivers seeking a versatile and refined sedan.
