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What is the Difference Between Mercedes-Benz 2.5 and 3.0?

2 Answers

JuniperLynn

08/27/25 6:24am

The difference between Mercedes-Benz 2.5 and 3.0 lies in the engine displacement: the Mercedes-Benz 2.5 is equipped with a 2.5L engine, while the Mercedes-Benz 3.0 has a 3.0L engine. Taking the 2021 Mercedes-Benz S400L 3.0 as an example, it belongs to the full-size car category with body dimensions of 5290mm in length, 1921mm in width, and 1503mm in height, with a wheelbase of 3216mm and a fuel tank capacity of 76L. The 2021 Mercedes-Benz S400L 3.0 features a double-wishbone independent front suspension and a multi-link independent rear suspension. It is powered by a 3.0L twin-turbocharged engine, delivering a maximum horsepower of 313PS, a maximum power output of 230kW, and a peak torque of 450Nm, paired with a 9-speed automatic transmission.

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McRobert

09/09/25 5:17am

I previously drove a Mercedes with a 3.0-liter engine and felt the power was more robust, with a noticeable push-back sensation during acceleration, especially when overtaking on the highway, which was particularly effortless. In comparison, the 2.5-liter engine has slightly less horsepower, making it more suitable for city commuting. The main difference between the two lies in the engine displacement: the 3.0-liter is typically a six-cylinder engine, delivering higher torque and horsepower, such as reaching over 300 horsepower, with quicker acceleration but slightly higher fuel consumption. The 2.5-liter is mostly a four-cylinder, offering much better fuel economy and being more cost-effective for daily driving. Mercedes has recently introduced the 2.5-liter engine in some new models to replace certain 3.0-liter versions, aiming to reduce emissions and taxes. However, in terms of driving pleasure, the 3.0-liter still comes out on top. If you frequently drive long distances or enjoy high-speed driving, I recommend opting for the 3.0-liter. If fuel costs or commuting are your main concerns, the 2.5-liter is more practical. Remember, both are equally reliable in terms of maintenance, with no significant differences in upkeep.

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