Which BMW 1 Series model has a four-cylinder engine?

2 Answers
NolanFitz
07/29/25 10:16am
Both the BMW 1 Series 120i and 125i models feature four-cylinder engines, equipped with 1.5T three-cylinder and 2.0T four-cylinder engines respectively. Specifically, the 120i is powered by a 2.0T four-cylinder turbocharged engine. The BMW 1 Series is a compact sedan under the BMW brand, with body dimensions of 4462mm in length, 1803mm in width, and 1446mm in height, and a wheelbase of 2670mm. In terms of exterior design, the BMW 1 Series adopts the brand's signature styling, featuring the iconic double-kidney grille at the front that offers high recognition, along with exquisitely designed headlights. For configurations, the BMW 1 Series comes equipped with the iDrive system, active cruise control, engine start-stop technology, and BMW remote services, among other features.
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FaithAnn
08/13/25 1:43pm
I remember that after the BMW 1 Series was redesigned a couple of years ago, it basically switched to all four-cylinder engines across the lineup. The currently available 2023 domestic sedan 120i M Sport edition exclusively uses a 2.0T four-cylinder engine with a low power output of 178 horsepower. The previously discontinued high-end 125i also featured a 2.0T four-cylinder, delivering 231 horsepower. The situation is slightly different for the imported hatchback 1 Series: pre-2020 118i models sometimes used three-cylinder engines, but the current 128ti and M135i have both switched to four-cylinders—especially the M135i, whose high-performance 306-horsepower 2.0T engine is really exhilarating to drive. In fact, all new 1 Series models available at dealerships now should be four-cylinders. Last time I accompanied a friend for a test drive, the 120i four-cylinder only consumed around 8 liters per 100 km in city driving, offering both adequate power and fuel efficiency. For used cars, though, you should be cautious about the 2018-era 118i three-cylinder versions.
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