2018 BMW 3 Series Specs, MPG & Trims
EPA fuel-economy data and specifications for the 2018 BMW 3 Series (23–36 MPG combined) across 17 listed configurations.
Overview
- Body class
- Compact Cars, Large Cars, Small Station Wagons
- Drive
- Rear-Wheel Drive, All-Wheel Drive
- Transmissions
- Automatic (S8), Manual 6-spd
- Engine
- 4-cyl, 2.0 L; 6-cyl, 3.0 L
- Fuel type
- Premium Gasoline, Diesel
- Combined MPG
- 23–36 MPG
- Annual fuel cost
- $2,650–$3,550
- 5-year fuel cost
- −$5,750 to +$1,500 vs. average
- EPA scores
- Fuel economy 5–9/10 · GHG 5–10/10
- Configurations
- 17
MPG & fuel economy
City, highway and combined values below are EPA estimates. Where a powertrain has several configurations, the table shows the lowest–highest reported value. Electric configurations use MPGe.
| Powertrain | City | Highway | Combined | Annual fuel cost | CO2 | Range |
|---|---|---|---|---|---|---|
| 4-cyl 2.0 L · Diesel · All-Wheel Drive | 30 | 40 | 34 | $2,800 | 303 g/mi | — |
| 4-cyl 2.0 L · Diesel · Rear-Wheel Drive | 31 | 43 | 36 | $2,650 | 285 g/mi | — |
| 4-cyl 2.0 L · Premium Gasoline · All-Wheel Drive | 23 | 33–34 | 27 | $3,050 | 332–333 g/mi | — |
| 6-cyl 3.0 L · Premium Gasoline · All-Wheel Drive | 19–21 | 29–31 | 23–25 | $3,300–$3,550 | 357–390 g/mi | — |
| 4-cyl 2.0 L · Premium Gasoline · Rear-Wheel Drive | 21–28 | 32–35 | 25–30 | $2,750–$3,300 | 189–360 g/mi | 350 mi |
| 6-cyl 3.0 L · Premium Gasoline · Rear-Wheel Drive | 19–21 | 29–32 | 23–25 | $3,300–$3,550 | 352–389 g/mi | — |
Configurations & engine comparison
Each row is one configuration/engine combination reported by the EPA for this model year. Missing EPA values are shown as —.
| Configuration / engine | Drive | Transmission | Cyl. | Displ. (L) | Fuel type | City | Hwy | Comb. | Annual cost | 5-YR COST | FE | GHG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 320i | Rear-Wheel Drive | Automatic (S8) | 4 | 2.0 | Premium Gasoline | 24 | 35 | 28 | $2,950 | −$2,750 | 6 | 6 |
| 320i | Rear-Wheel Drive | Manual 6-spd | 4 | 2.0 | Premium Gasoline | 23 | 35 | 27 | $3,050 | −$3,250 | 6 | 6 |
| 320i xDrive | All-Wheel Drive | Automatic (S8) | 4 | 2.0 | Premium Gasoline | 23 | 34 | 27 | $3,050 | −$3,250 | 6 | 6 |
| 328d | Rear-Wheel Drive | Automatic (S8) | 4 | 2.0 | Diesel | 31 | 43 | 36 | $2,650 | −$1,250 | 8 | 7 |
| 328d xDrive | All-Wheel Drive | Automatic (S8) | 4 | 2.0 | Diesel | 30 | 40 | 34 | $2,800 | −$2,000 | 8 | 6 |
| 328d xDrive Sports Wagon | All-Wheel Drive | Automatic (S8) | 4 | 2.0 | Diesel | 30 | 40 | 34 | $2,800 | −$2,000 | 8 | 6 |
| 330e | Rear-Wheel Drive | Automatic (S8) | 4 | 2.0 | Premium Gasoline | 28 | 34 | 30 | $2,750 | +$1,500 | 9 | 10 |
| 330i | Rear-Wheel Drive | Automatic (S8) | 4 | 2.0 | Premium Gasoline | 24 | 34 | 27 | $3,050 | −$3,250 | 6 | 6 |
| 330i | Rear-Wheel Drive | Manual 6-spd | 4 | 2.0 | Premium Gasoline | 21 | 32 | 25 | $3,300 | −$4,500 | 5 | 5 |
| 330i xDrive | All-Wheel Drive | Automatic (S8) | 4 | 2.0 | Premium Gasoline | 23 | 33 | 27 | $3,050 | −$3,250 | 6 | 6 |
| 330i xDrive Gran Turismo | All-Wheel Drive | Automatic (S8) | 4 | 2.0 | Premium Gasoline | 23 | 33 | 27 | $3,050 | −$3,250 | 6 | 6 |
| 330i xDrive Sports Wagon | All-Wheel Drive | Automatic (S8) | 4 | 2.0 | Premium Gasoline | 23 | 33 | 27 | $3,050 | −$3,250 | 6 | 6 |
| 340i | Rear-Wheel Drive | Automatic (S8) | 6 | 3.0 | Premium Gasoline | 21 | 32 | 25 | $3,300 | −$4,500 | 5 | 5 |
| 340i | Rear-Wheel Drive | Manual 6-spd | 6 | 3.0 | Premium Gasoline | 19 | 29 | 23 | $3,550 | −$5,750 | 5 | 5 |
| 340i xDrive | All-Wheel Drive | Automatic (S8) | 6 | 3.0 | Premium Gasoline | 21 | 31 | 25 | $3,300 | −$4,500 | 5 | 5 |
| 340i xDrive | All-Wheel Drive | Manual 6-spd | 6 | 3.0 | Premium Gasoline | 19 | 29 | 23 | $3,550 | −$5,750 | 5 | 5 |
| 340i xDrive Gran Turismo | All-Wheel Drive | Automatic (S8) | 6 | 3.0 | Premium Gasoline | 20 | 29 | 23 | $3,550 | −$5,750 | 5 | 5 |
Frequently asked questions
What is the combined MPG of the 2018 BMW 3 Series?
According to EPA data, the 2018 BMW 3 Series is rated at 23–36 MPG combined for its conventional-fuel configurations.
How many cylinders does the 2018 BMW 3 Series have?
The EPA data lists 4 and 6 cylinders across its configurations.
What fuel type does the 2018 BMW 3 Series use?
It is offered with Premium Gasoline and Diesel.
What is the annual fuel cost of the 2018 BMW 3 Series?
The EPA estimates annual fuel costs ranging from $2,650 to $3,550.
How much will the 2018 BMW 3 Series cost in fuel over 5 years?
According to EPA estimates, the 2018 BMW 3 Series 5-year fuel-cost difference is −$5,750 to +$1,500 relative to the average new vehicle (negative values are extra cost; positive values are savings).