Makes BMWX3

BMW X3 MPG

Its best-rated version reaches 30 MPG combined in 2015–2016, the diesel X3 xDrive28d. Its weakest year peaked at 18 MPG (2004–2006).

lowest to best versionbest versionbest version is a hybridmedian of its classengine list turned over

517.2 gal

a year at 15,000 miles for the best 2026 version, the X3 xDrive30. Put it next to its 2004 predecessor, at your own mileage.

Compare in gallons

The BMW X3 has EPA ratings for 23 model years, 2004–2026, most often among small SUVs. Its best version ranked third of 53 small SUVs in 2015, behind the class leader, the Lexus NX, and it placed in its class top five in two model years.

Between 2016 and 2017 the best rating of the X3 fell 6 MPG, one of the five largest one-year drops among 122 SUVs rated for eight or more years. Of the 249 SUV nameplates on this site, few have had a diesel version (24 of them) or a plug-in hybrid version (32 of them); this one has.

Among 69 small SUVs, 2026

The X3 placed 24th (tied). The class leader was the Kia Niro at 53 MPG. The next higher rating, 30 MPG, is shared by two nameplates.

The X3, five years at a time

Average rating of its best version per span, placed in the class it sat in most often.

2004–0827th of 75SUVs

2009–1335th of 88SUVs

2014–1817th of 50small SUVs

2019–2334th of 70small SUVs

2024–2630th of 64small SUVs

Where the engine list turned over

2025
New: 2.0-liter 4-cylinder hybrid, 3.0-liter 4-cylinder hybrid. Best rating 25 → 29 MPG.
2026
New: 3.0-liter 6-cylinder hybrid. Best rating 29 → 29 MPG.

Powertrains under the name

Gasoline
Rated in 2004–2024.
Diesel
Rated in 2015–2016.
Plug-in hybrid
Rated in 2020–2021.
Hybrid
Rated in 2022–2026.

All 23 model years, best and lowest version

Model years	Best version	Combined	City / hwy	Lowest version	Versions
2026	X3 xDrive30 hybrid	29	27 / 33	27	2
2025	X3 xDrive30i hybrid	29	27 / 33	27	2
2022–2024	X3 sDrive30i	25	23 / 29	17	5
2020–2021	X3 sDrive30i	27	25 / 29	16	6
2019	X3 sDrive30i	26	23 / 30	23	3
2018	X3 xDrive30i	25	22 / 29	23	2
2017	X3 sDrive28i	24	21 / 28	21	3
2015–2016	X3 xDrive28d diesel	30	27 / 33	21	4
2013–2014	X3 xDrive28i	24	21 / 28	21	2
2011–2012	X3 xDrive28i	21	19 / 26	21	2
2009–2010	X3 xDrive30i	20	17 / 24	19	2
2008	X3 3.0si	20	17 / 24	19	2
2007	X3 3.0i	20	17 / 24	19	4
2006	X3	18	15 / 23	17	2
2004–2005	X3	18	15 / 23	17	4

Version names in the EPA list: X3, X3 3.0i, X3 3.0si, X3 M, X3 M Competition, X3 M40i, X3 M50, X3 M50i xDrive, X3 sDrive 28i, X3 sDrive28i, X3 sDrive30i, X3 xDrive28d, X3 xDrive28i, X3 xDrive30, X3 xDrive30e, X3 xDrive30i, X3 xDrive35i.

Same class, 2026

Kia Niro53 MPG Lincoln Nautilus30 MPG Kia Seltos29 MPG Maserati Grecale20 MPG