2018 BMW 3 Series
US · Sedan · Compact Cars
The 2018 BMW 3 Series is listed in the US market as a sedan. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 2.0L 4-cylinder turbocharged, 2.0L 4-cylinder turbocharged (SIDI; PHEV), 3.0L 6-cylinder turbocharged (SIDI)
- Power
- 255 hp (190 kW)
- Torque
- 295 lb-ft (400 Nm)
- Transmission
- Varies by configuration: Manual, Automatic
- Drivetrain
- Varies by configuration: RWD, AWD
- Fuel
- Varies by configuration: Gasoline, Diesel, Plug-in hybrid
- Economy
- 23 mpg (10.2 L/100 km) to 36 mpg (6.5 L/100 km) combined
- Seating
- 5 seats
Key Performance & Dimensions
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 2.0L 4-cylinder turbocharged, 2.0L 4-cylinder turbocharged (SIDI; PHEV), 3.0L 6-cylinder turbocharged (SIDI) | |
| Displacement | 2.0 L to 3.0 L | |
| Cylinders | 4 to 6 | |
| Aspiration | Turbocharged | |
| Power | 255 hp (190 kW) | |
| Torque | 295 lb-ft (400 Nm) | |
| Fuel type | Varies by configuration: Gasoline, Diesel, Plug-in hybrid | EPA fueleconomy.gov |
Performance
| Specification | Value | Source |
|---|---|---|
| 0–100 km/h | 5.6 s | |
| Top speed | 155 mph (250 km/h) |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Varies by configuration: Manual, Automatic | |
| Gears | 6 to 8 | |
| Drivetrain | Varies by configuration: RWD, AWD |
Dimensions
| Specification | Value | Source |
|---|---|---|
| Length | 185.6 in (4,713 mm) | |
| Width | 71.9 in (1,827 mm) | |
| Height | 56.7 in (1,440 mm) | |
| Wheelbase | 112.2 in (2,851 mm) |
Weight
| Specification | Value | Source |
|---|---|---|
| Curb weight | 3,583 lb (1,625 kg) |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 23 mpg (10.2 L/100 km) to 36 mpg (6.5 L/100 km) | EPA fueleconomy.gov |
| City | 19 mpg (12.4 L/100 km) to 31 mpg (7.6 L/100 km) | |
| Highway | 29 mpg (8.1 L/100 km) to 43 mpg (5.5 L/100 km) |
Capacity
| Specification | Value | Source |
|---|---|---|
| Seats | 5 | |
| Doors | 4 |
Our sources do not publish these for this vehicle: Towing capacity, Payload, Ground clearance, Gross vehicle weight rating, Electric range, Battery capacity, Fuel tank, Cargo volume. We leave them out instead of estimating.
Trims and configurations
17 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
- 320i · 2.0L · RWD · 6-speed manual
- 320i · 2.0L · RWD · 8-speed automatic
- 320i xDrive · 2.0L · AWD · 8-speed automatic
- 328d · 2.0L · RWD · 8-speed automatic · Diesel
- 328d xDrive · 2.0L · AWD · 8-speed automatic · Diesel
- 328d xDrive Sports Wagon · 2.0L · AWD · 8-speed automatic · Diesel
- 330e · 2.0L · RWD · 8-speed automatic · Plug-in Hybrid
- 330i · 2.0L · RWD · 6-speed manual
- 330i · 2.0L · RWD · 8-speed automatic
- 330i xDrive · 2.0L · AWD · 8-speed automatic
- 330i xDrive Gran Turismo · 2.0L · AWD · 8-speed automatic
- 330i xDrive Sports Wagon · 2.0L · AWD · 8-speed automatic
- 340i · 3.0L · RWD · 6-speed manual
- 340i · 3.0L · RWD · 8-speed automatic
- 340i xDrive · 3.0L · AWD · 6-speed manual
- 340i xDrive · 3.0L · AWD · 8-speed automatic
- 340i xDrive Gran Turismo · 3.0L · AWD · 8-speed automatic
Compatible OEM Parts & Fitment
Verified OEM part numbers, standard sizing, and replacement specifications cross-referenced for this vehicle.
Trunk-mounted main 12V system; requires battery registration via OBD2
340mm Vented Front Brake Rotor
M Sport Brake package with blue or red fixed 4-piston calipers
Standard rear axle fitment with integrated electronic parking brake
Explore all component categories and replacement specifications in the Parts Explorer.
Recalls
No recall campaigns were found in NHTSA data at the last check. Last checked November 10, 2026.
Data sources
- EPA fueleconomy.gov · retrieved November 5, 2026 · US Government public data
Source checked: November 5, 2026
Data verified: November 5, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Related vehicles
- 2017 BMW 3 Series
Sedan, Varies by configuration: Gasoline, Plug-in hybrid, Diesel
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.0L 6-cylinder turbocharged (SIDI), 2.0L 4-cylinder turbocharged (SIDI; PHEV), 2.0L 4-cylinder turbocharged · 255 hp (190 kW) · Varies by configuration: RWD, AWD
36 mpg (6.5 L/100 km) to 23 mpg (10.2 L/100 km) - 2019 BMW 3 Series
Sedan, Gasoline
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.0L 6-cylinder turbocharged (SIDI) · 255 hp (190 kW) · Varies by configuration: AWD, RWD
30 mpg (7.8 L/100 km) to 23 mpg (10.2 L/100 km)
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Frequently asked questions
What engine does the 2018 BMW 3 Series have?
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 2.0L 4-cylinder turbocharged, 2.0L 4-cylinder turbocharged (SIDI; PHEV), 3.0L 6-cylinder turbocharged (SIDI). Engines can differ by trim, so check the trim list below.
How much horsepower does the 2018 BMW 3 Series have?
255 hp (190 kW), as listed by our sources.
What is the fuel economy of the 2018 BMW 3 Series?
Combined fuel economy is 23 mpg (10.2 L/100 km) to 36 mpg (6.5 L/100 km), as published by the source shown in the specification table.
Is the 2018 BMW 3 Series front-wheel, rear-wheel or all-wheel drive?
Drivetrain: Varies by configuration: RWD, AWD.
How many seats does the 2018 BMW 3 Series have?
5 seats.
How long is the 2018 BMW 3 Series?
185.6 in (4,713 mm).
Are there recalls for the 2018 BMW 3 Series?
No recall campaigns were found in NHTSA data when we last checked on November 10, 2026. Recall status can change, so confirm with NHTSA or the manufacturer.