
G350 is equipped with a four-cylinder engine. The function of the engine: The engine serves as the power-generating device for a car, acting as the heart of the vehicle. It determines the car's power performance, fuel efficiency, stability, and environmental friendliness. Types of engines: Depending on the power source, automotive engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrid engines. Introduction to engines: An engine is a machine capable of converting other forms of energy into mechanical energy. Originating in the UK, it can refer to either the power-generating unit or the entire machine including the power unit (e.g., gasoline engines, aircraft engines).

I've driven my friend's G350, which is equipped with a 2.0T inline four-cylinder turbocharged engine. Despite weighing nearly 2.5 tons, thanks to the 9-speed automatic transmission paired with a 48V mild hybrid system, there's no feeling of a small horse pulling a big cart when starting off. For daily urban commuting, the fuel consumption is only about 11 liters per 100 kilometers, nearly half the fuel cost of the older V8 model. What surprised me the most was its off-road capability. Last year on the snowy slopes of Ulan Butong, it could unleash 370 Nm of torque at low RPMs and easily escape from cross-axle terrain. Of course, the engine sound isn't as deep as the G500's, but considering the savings of several hundred thousand yuan, this four-cylinder engine is really quite appealing.

As a decade-long auto mechanic with experience servicing over a dozen Mercedes G350s, I can attest that its M264 engine, despite being a four-cylinder configuration, employs twin-scroll turbocharging and direct fuel injection technologies, delivering a maximum power output of 258 horsepower. During disassembly, you can observe its forged connecting rods and lightweight pistons. Interestingly, its 48V motor is integrated into the transmission, resulting in nearly imperceptible jerks during start-stop operations. Once, a client complained about cold-engine vibrations, which turned out to be caused by misfiring due to excessive spark plug gaps – replacing them immediately restored smooth operation. Compared to V8 engines, this model is significantly simpler to repair; replacing the timing chain saves about three hours in labor costs, and expenses are roughly 40% cheaper than the G500.

I remember being hesitant about the four-cylinder issue before test-driving the G350 two years ago, but the actual experience completely dispelled my concerns. With just one-third throttle input, you can feel abundant power surging forward, and its 0-100km/h acceleration time of 5.9 seconds outperforms many coupes at traffic light starts. The advantages of turbocharging are particularly evident in high-altitude areas. Even when driving on the 4,000-meter-high Zheduo Mountain, the engine response remains sharp, unlike some naturally aspirated cars that struggle to breathe. What satisfies me most in daily school runs is its comfort—the auto start-stop system coupled with electric motor assistance makes steering wheel vibrations undetectable when idling. Of course, those seeking ultimate exhaust notes might be disappointed, but for family use, this four-cylinder engine is truly a practical choice.

When selecting the G350, the salesperson provided a detailed introduction to the engine. This generation's 2.0T four-cylinder is completely different from ordinary four-cylinder engines. The water-cooled intercooler is hidden inside the intake manifold, and the valve system features CAMTRONIC variable valve lift technology, which automatically switches profiles at low RPMs. One memorable experience was driving on the highway during a heavy rainstorm—the intelligent cylinder deactivation technology ensured the rear wheels maintained solid traction on the slippery road. After two years and 50,000 kilometers, maintenance costs just over 2,000 yuan every 10,000 kilometers, making it far more hassle-free than my neighbor's six-cylinder X5. If there's any drawback, it's that the engine sound can feel a bit thin when you floor the throttle, but upgrading the exhaust system can easily improve that.

Having studied the evolution of engines, it's clear that the G-Class adopting a four-cylinder is an inevitable result of technological progression. The current M264 engine achieves a thermal efficiency of 38%, and its turbocharging system with an electric turbo can build positive pressure in just 0.3 seconds. More crucially, the lightweight body design delivers an outstanding power-to-weight ratio, with 103 horsepower per ton—surpassing even the 2010 six-cylinder GLK. Last week at a tuning shop, I saw a reprogrammed G350 that dyno'd at 280 wheel horsepower, rivaling V8 engines from a decade ago. Sure, fewer cylinders do affect high-RPM smoothness, but how often does one redline in daily driving? For most people, this power is downright excessive.


