The BMW 3 Series Sedan (E46) 328i Automatic, produced from 1998 through 2000, represents a significant iteration of BMW’s iconic sports sedan. Positioned as a mid-range offering within the E46 generation (which spanned 1998-2006), the 328i Automatic bridged the gap between the entry-level 323i and the high-performance 330i. This variant aimed to deliver a balance of performance, refinement, and ease of use, appealing to buyers who desired a sporty driving experience without the involvement of a manual transmission. The E46 platform itself was a pivotal design for BMW, introducing a more modern aesthetic and improved handling characteristics compared to its predecessor, the E36.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (E46) |
| Type (Engine) | 328i (193 Hp) Automatic |
| Start of production | 1998 |
| End of production | 2000 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 14.9 l/100 km (15.8 US mpg / 19 UK mpg / 6.7 km/l) |
| Fuel consumption (economy) – extra urban | 7.2 l/100 km (32.7 US mpg / 39.2 UK mpg / 13.9 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7 sec |
| Acceleration 0 – 62 mph | 7 sec |
| Acceleration 0 – 60 mph | 6.7 sec |
| Maximum speed | 228 km/h (141.67 mph) |
| Weight-to-power ratio | 7.2 kg/Hp, 138.4 Hp/tonne |
| Weight-to-torque ratio | 5 kg/Nm, 200.7 Nm/tonne |
| Power | 193 Hp @ 5300 rpm |
| Power per litre | 69.1 Hp/l |
| Torque | 280 Nm @ 3950 rpm (206.52 lb.-ft. @ 3950 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M52B28TU |
| Engine displacement | 2793 cm3 (170.44 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 84 mm (3.31 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 8.4 l (8.88 US qt | 7.39 UK qt) |
| Kerb Weight | 1395 kg (3075.45 lbs.) |
| Max. weight | 1895 kg (4177.76 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 | 1415 mm (55.71 in.) |
| Wheelbase | 2725 mm (107.28 in.) |
| Front track | 1471 mm (57.91 in.) |
| Rear (Back) track | 1478 mm (58.19 in.) |
| 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 | 5 gears, automatic 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 | 205/55 R16 |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
The heart of the 328i Automatic is the M52B28TU inline-six engine. This 2.8-liter engine is a descendant of BMW’s long-respected M52 series, known for its smooth power delivery and robust construction. The “TU” designation signifies a technical upgrade (Technische Upgrade) applied during the E46’s production run, including improvements to the engine management system and VANOS variable valve timing. The M52B28TU utilizes multi-port fuel injection, delivering fuel directly into each intake port for optimized combustion. The double overhead camshaft (DOHC) valvetrain, coupled with four valves per cylinder, contributes to the engine’s high volumetric efficiency. Paired with this engine is a 5-speed automatic transmission, offering smooth shifts and convenience. This transmission, while not as sporty as the available manual, was geared for a balance of acceleration and fuel economy.
Driving Characteristics
The 328i Automatic offered a refined driving experience. While the 0-60 mph time of around 6.7 seconds was respectable for the era, it was slightly slower than the manual transmission equipped 328i. The automatic transmission’s shift points were programmed to prioritize comfort and fuel efficiency, resulting in a less aggressive feel compared to the manual. However, the engine’s ample torque – 280 Nm (206.52 lb-ft) – provided sufficient power for everyday driving and overtaking maneuvers. The rear-wheel-drive configuration and well-tuned suspension contributed to the E46’s renowned handling balance, making it a capable and enjoyable car to drive on winding roads.
Equipment & Trim Levels
The 328i Automatic typically came standard with features such as power windows, power locks, a sunroof, and air conditioning. Interior upholstery was usually cloth, although leather was available as an option. Dashboard trim could be specified in wood or metallic finishes. Common optional extras included a premium sound system, heated front seats, and automatic climate control. The 328i sat above the 323i in terms of standard equipment and engine output, but below the 330i, which offered a larger engine and more premium features.
Chassis & Braking
The E46 328i Automatic utilized a MacPherson strut front suspension and a multi-link rear suspension, providing a comfortable ride and precise handling. Brakes consisted of ventilated discs at the front and solid discs at the rear. Anti-lock Braking System (ABS) was standard, enhancing safety and control during emergency braking. The chassis was designed to be rigid, contributing to the car’s overall stability and responsiveness. Stabilizer bars were fitted front and rear to reduce body roll during cornering.
Market Reception & Comparison
The 328i Automatic was generally well-received by automotive critics. It was praised for its smooth engine, comfortable ride, and refined interior. However, some reviewers noted that the automatic transmission dulled the driving experience compared to the manual. Compared to the 323i, the 328i offered a noticeable performance upgrade. Against the 330i, the 328i represented a more affordable option, albeit with slightly less power and fewer standard features. Fuel economy was reasonable for a car of its class, averaging around 22 mpg in combined driving.
Legacy
The E46 328i Automatic has proven to be a relatively reliable vehicle, with the M52B28TU engine being known for its durability. Common maintenance items include oil changes, coolant flushes, and occasional repairs to the cooling system. The automatic transmission, if properly maintained, is generally dependable. Today, the E46 328i Automatic remains a popular choice among enthusiasts and used car buyers, offering a blend of BMW performance, comfort, and affordability. Well-maintained examples are increasingly sought after as classic BMWs, representing a high point in the brand’s engineering and design.
