2018 BMW 3 Series
US · Compact Cars
The 2018 BMW 3 Series is listed in the US market. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.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
- Not available
- Torque
- Not available
- Transmission
- Varies by configuration: Manual, Automatic
- Drivetrain
- Varies by configuration: RWD, AWD
- Fuel
- Varies by configuration: Gasoline, Diesel, Plug-in hybrid
- Seating
- Not available
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 | |
| Fuel type | Varies by configuration: Gasoline, Diesel, Plug-in hybrid | EPA fueleconomy.gov |
Not available from our sources: Power, Torque.
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Varies by configuration: Manual, Automatic | |
| Gears | 6 to 8 | |
| Drivetrain | Varies by configuration: RWD, AWD |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 36 mpg (6.5 L/100 km) to 23 mpg (10.2 L/100 km) | EPA fueleconomy.gov |
| City | 31 mpg (7.6 L/100 km) to 19 mpg (12.4 L/100 km) | |
| Highway | 43 mpg (5.5 L/100 km) to 29 mpg (8.1 L/100 km) |
Not available from our sources: Electric range, Battery capacity.
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 October 12, 2026.
Data sources
- EPA fueleconomy.gov · retrieved October 12, 2026 · US Government public data
Source checked: October 12, 2026
Data verified: October 12, 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
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 · Varies by configuration: RWD, AWD
36 mpg (6.5 L/100 km) to 23 mpg (10.2 L/100 km) - 2019 BMW 3 Series
Gasoline
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.0L 6-cylinder turbocharged (SIDI) · Varies by configuration: AWD, RWD
30 mpg (7.8 L/100 km) to 23 mpg (10.2 L/100 km)
Explore similar vehicles
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.
What is the fuel economy of the 2018 BMW 3 Series?
Combined fuel economy is 36 mpg (6.5 L/100 km) to 23 mpg (10.2 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.
Are there recalls for the 2018 BMW 3 Series?
No recall campaigns were found in NHTSA data when we last checked on October 12, 2026. Recall status can change, so confirm with NHTSA or the manufacturer.