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This Is How Mercedes Created The Most Powerful 4-Cylinder Engine In The World

Welcome to yet another video by Engineering Explained where we are treated with Jason Fenske’s elaborate explanations of how Mercedes created the most powerful 4-cylinder engine in the world.

Our regular readers are well aware that we don’t miss an opportunity to feature videos that come from Jason Fenske. That is because of the fact that this guy knows how to explain complicated ideas in simple words. This video is about 4-cylinder engine and how Mercedes has managed to create beauty!

Mercedes AMG created a gem of an engine in the shape of hand-built M139. It is a 2.0L turbocharged inline 4-cylinder that can generate 416 horsepower. This makes the M139 the most powerful turbo 4-cylinder engine that is currently part of any production car. The M139 engine is being used in the Mercedes GLA45, CLA45, and A45 vehicles. It offers 416 horsepower at 6,750 RPM, and 369 pound-foot at 5,000 RPM.

The M139 4-cylinder engine has a displacement of 1991 cc and can generate more than 208 horsepower per liter. It also features the highest peak combustion pressures of any engine. So, how did Mercedes do it? To put it simply; making use of clever engineering. The 4-cylinder engine is filled with wonderful engineering features. Whether it is the layout of the engine, roller-bearing twin-scroll turbos, the block and forged internals, the cylinder head, the spray-on cylinder liners, or any other component; Mercedes definitely has outdone itself.

As to how it all comes together and how it works? We can’t really give you all the details here now, can we? To learn everything about this amazing 4-cylinder, we have Jason Fenske from Engineering Explained in the video below explaining everything the way he always does; spectacularly. Check out the video below and let us know what you think of it. Be sure to share it with your friends and family members as well.