The BMW 3 Series Sedan (F30 LCI), specifically the 335d xDrive Steptronic variant, represents a significant iteration of BMW’s iconic sports sedan, produced from 2015 to 2018. This facelift, known internally as LCI (Life Cycle Impulse), brought updated styling, improved efficiency, and refined technology to the already successful F30 platform. The 335d, positioned as a premium offering within the 3 Series range, combined a potent diesel engine with BMW’s xDrive all-wheel-drive system and the Steptronic automatic transmission, targeting drivers seeking a blend of performance, luxury, and fuel economy. It served as a flagship diesel model in key European markets where diesel engines held a substantial market share.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (F30 LCI, Facelift 2015) |
| Type (Engine) | 335d (313 Hp) xDrive Steptronic |
| Start of production | 2015 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6.5-6.4 l/100 km (36.2 – 36.8 US mpg) |
| Fuel consumption (extra urban) | 4.9 l/100 km (48 US mpg) |
| Fuel consumption (combined) | 5.5-5.4 l/100 km (42.8 – 43.6 US mpg) |
| CO2 emissions | 145-143 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 4.8 sec |
| Acceleration 0 – 62 mph | 4.8 sec |
| Acceleration 0 – 60 mph | 4.6 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 5.2 kg/Hp |
| Weight-to-torque ratio | 2.6 kg/Nm |
| Power | 313 Hp @ 4400 rpm |
| Torque | 630 Nm @ 1500-2500 rpm (464.66 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N57D30B |
| Engine displacement | 2993 cm3 (182.64 cu. in.) |
| Number of cylinders | 6 |
| 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 | Twin-power turbo, Intercooler |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 7.2 l (7.61 US qt | 6.34 UK qt) |
| Kerb Weight | 1630 kg (3593.53 lbs.) |
| Max. weight | 2180 kg (4806.08 lbs.) |
| Max load | 550 kg (1212.54 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Fuel tank capacity | 48 l (12.68 US gal | 10.56 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4633 mm (182.4 in.) |
| Width | 1811 mm (71.3 in.) |
| Height | 1434 mm (56.46 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1531 mm (60.28 in.) |
| Rear (Back) track | 1570 mm (61.81 in.) |
| Ride height (ground clearance) | 145 mm (5.71 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.7 m (38.39 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| 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 | 225/50 R17 94W |
| Wheel rims size | 7.5J x 17 |
Powertrain & Engine Architecture
The heart of the 335d xDrive Steptronic is the N57D30B inline-six diesel engine. This engine, a cornerstone of BMW’s diesel offerings, is characterized by its robust construction and advanced technology. The N57 family of engines utilizes a common-rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A sophisticated twin-turbocharger setup – one low-pressure and one high-pressure turbo – provides both excellent low-end torque and high-end power. The intercooler further enhances performance by cooling the compressed intake air. The engine’s 16.5:1 compression ratio contributes to its efficiency. Paired with the engine is the ZF 8HP80 eight-speed automatic transmission, marketed by BMW as “Steptronic.” This transmission is renowned for its smooth shifts, efficiency, and adaptability. The xDrive all-wheel-drive system distributes power between the front and rear axles as needed, enhancing traction and stability, particularly in adverse weather conditions.
Driving Characteristics
The 335d xDrive Steptronic delivers a distinctly different driving experience compared to its gasoline-powered siblings or even the manual diesel variants. The abundant 630 Nm (464.66 lb.-ft.) of torque available from just 1500 rpm provides effortless acceleration and strong in-gear performance. While not as overtly sporty as the 335i, the 335d offers a refined and confident driving experience. The Steptronic transmission, while generally smooth, can sometimes feel slightly hesitant in Sport mode, prioritizing fuel efficiency over immediate responsiveness. The xDrive system provides excellent grip, inspiring confidence in all conditions. The 0-60 mph time of around 4.6 seconds is impressive for a diesel sedan, placing it firmly in performance territory. However, the engine’s character is more about usable power and relaxed cruising than outright thrills.
Equipment & Trim Levels
The 335d xDrive Steptronic typically came well-equipped as a premium trim level. Standard features included leather upholstery, power-adjustable front seats with memory function, a premium sound system, automatic climate control, and BMW’s iDrive infotainment system with a central display screen. Optional extras were plentiful, including a head-up display, navigation system, adaptive cruise control, lane departure warning, and a panoramic sunroof. Interior trim options ranged from wood veneers to aluminum accents, allowing for a degree of personalization. Exterior styling cues included unique badging and often, larger alloy wheels.
Chassis & Braking
The F30 3 Series features a sophisticated chassis design. The 335d xDrive Steptronic utilizes an independent coil spring suspension at the front and an independent multi-link suspension at the rear, providing a comfortable yet controlled ride. The xDrive system adds weight, necessitating slightly stiffer spring rates and dampers compared to rear-wheel-drive models. Braking duties are handled by ventilated discs on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System) and electronic stability control are standard safety features.
Market Reception & Comparison
The 335d xDrive Steptronic was generally well-received by automotive critics, particularly in Europe. It was praised for its strong performance, excellent fuel economy, and refined driving experience. Compared to the 335i, the 335d offered comparable acceleration but with significantly better fuel efficiency. The 320d and 325d models, while more affordable, lacked the outright performance of the 335d. Reliability was generally good, although the complex turbocharging system and common-rail injection system required diligent maintenance. The higher initial cost and potential for more expensive repairs were drawbacks compared to the gasoline-powered models.
Legacy
The N57 engine family, including the N57D30B found in the 335d, has proven to be remarkably durable when properly maintained. Today, used examples of the 335d xDrive Steptronic represent a compelling value proposition for buyers seeking a blend of performance, luxury, and fuel efficiency. However, potential buyers should be aware of the importance of regular maintenance, particularly regarding the turbochargers and fuel injection system. The 335d remains a popular choice among enthusiasts who appreciate its unique combination of attributes and its status as a refined and capable sports sedan.
