Which BMW 3 Series model features a three-cylinder engine?
3 Answers
The BMW 3 Series models equipped with three-cylinder engines are the sixth-generation 318i and 318Li variants. These vehicles utilize a three-cylinder engine codenamed B38. The BMW 3 Series is a mid-size sedan from BMW, with the sixth generation now discontinued. The domestically produced sixth-generation models were powered by three different engines: a 1.5-liter turbocharged engine, a low-power version of the 2.0-liter turbocharged engine, and a high-power version of the 2.0-liter turbocharged engine. Below are the specifications for these three engines: 1. The 1.5-liter turbocharged engine delivers a maximum power of 100 kW, with peak power achieved between 4,400 and 6,000 rpm. It produces a maximum torque of 220 Nm, available from 1,250 to 4,300 rpm. This engine features direct fuel injection technology and utilizes an aluminum alloy cylinder head and block. 2. The low-power version of the 2.0-liter turbocharged engine generates a maximum power of 135 kW, with peak power occurring between 5,000 and 6,500 rpm. It offers a maximum torque of 270 Nm, accessible from 1,350 to 4,600 rpm. This engine also incorporates direct fuel injection and an aluminum alloy cylinder head and block. 3. The high-power version of the 2.0-liter turbocharged engine produces a maximum power of 185 kW, achieving peak power between 5,200 and 6,500 rpm. It provides a maximum torque of 350 Nm, available from 1,450 to 4,800 rpm. Like the others, this engine features direct fuel injection and an aluminum alloy cylinder head and block.
I think the BMW 3 Series' three-cylinder engine is mainly found in the 318i model, which appeared during the F30 generation, such as the versions launched around 2015. As an entry-level option, BMW used a 1.5-liter turbocharged three-cylinder engine to reduce fuel consumption and emissions while making the price more affordable. I've researched this and found that although three-cylinder engines inherently have more vibration, BMW's tuning ensures a relatively smooth driving experience, making it economical for daily use. Related to this, most of the newer G20 3 Series models now come with four-cylinder engines, so the 318i is probably only common in the used car market. If you're considering buying one, pay attention to maintenance costs—things like spark plug replacements might be more frequent—but overall, it's suitable for city commuting.
Last time I discussed the BMW 3 Series engine with a friend, specifically the three-cylinder model which is the 318i, commonly seen in the F30 series. As someone who drives it daily, I know this design aims to balance cost-saving and environmental friendliness, with quick engine response and significant fuel savings on city roads. Extending a bit, similar cars like the Mercedes A-Class have also used three-cylinder engines, but BMW does better in vibration control. In practical use, I don’t find the noise issue to be significant, and with proper maintenance, it can last a long time. I recommend test driving to feel the smoothness, as entry-level models may have weaker high-speed performance.
