Which BMW M240i generation is the most reliable?

In our guide, the M240i G42 (2022 to 2027): its reliability score runs 89 to 92 of 100 across its model years. The lowest is the M240i F23, at 86 to 88.

What goes wrong on a BMW M240i?

M240i G42: oil filter housing and valve cover gasket leaks (about $1,500), high pressure fuel pump (about $1,100). M240i F23: oil filter housing and valve cover gasket leaks (about $1,500), high pressure fuel pump (about $1,100). M240i F22: oil filter housing and valve cover gasket leaks (about $1,500), high pressure fuel pump (about $1,100).

Which BMW M240i years should I avoid?

No M240i model year in our guide is held back by a specific problem; the gaps between years come from age.

What is the best BMW M240i year to buy?

By our Guide Score, which weighs desirability, driving and reliability, the 2020 M240i F22, at 81 of 100. Best year of each generation: M240i G42 2027 (68), M240i F23 2021 (71), M240i F22 2020 (81).

Problems by generation

BMW M240i problems by generation

The known problems on all 3 M240i generations in our guide (F22, F23 and G42): what a fix costs, how each one scores on reliability, and which model years to skip.

M Performance3 generations, 2017 to 2027

Most reliableM240i G42Reliability 89 to 92Least reliableM240i F23Reliability 86 to 88Highest Guide Score2020 M240i F22Guide Score 81 Strong Costliest known repairOil filter housing and valve cover gasket leaks$1,500 on the M240i G42

Every M240i generation at a glance

Generation	Reliability	Costliest known repair	Best year
M240i G422022 to 2027	89 to 92Excellent	Oil filter housing and valve cover gasket leaks$1,500	2027Score 68
M240i F232017 to 2021	86 to 88Strong	Oil filter housing and valve cover gasket leaks$1,500	2021Score 71
M240i F222017 to 2021	86 to 88Strong	Oil filter housing and valve cover gasket leaks$1,500	2020Score 81

Reliability is out of 100, for the range of a generation's model years: its engine, its own known problems and their bills, parts and service costs, and age. Repair figures are the guides' estimates for an independent shop, not quotes. How the scores work

Which M240i years to skip

Generation	Best year	Weaker years, and why
M240i G422022 to 2027	2027 (68)	2022 to 2026 (Guide Score 66 to 68) score close to the best, but check for carbon buildup.
M240i F232017 to 2021	2021 (71)	None: no year is held back by a specific problem.
M240i F222017 to 2021	2020 (81)	None: no year is held back by a specific problem.

Most of the gap between years is age. A year is listed when the score charges it for something specific: a different engine, a problem that hit only some years, or a gearbox that came later. The same list for every car is on the best and worst years.

Before you choose

Tip

A well-kept car from a weaker generation can be a better buy than a neglected one from the best. Each guide has the full problem list with how to check for each, and Score a listing rates one car for sale.

Head to head

M240i vs M2

Every M240i generation at a glance

The worst known problems on each M240i

Which M240i years to skip

Before you choose