The most powerful 4-cylinder unit in the world is codenamed M139 and has no connection with the 2.0-liter turbo engine powering the AMG 35 family. I still have the orignial engine, auto transmission, and turbo (noe have been repaired or replaced). Mercedes-AMG M139 engine. Mercedes isn't saying what product will get the new e-turbo first, or when—but it has revealed which engine will get the tech: The M139 four-cylinder, which is currently used in the new compact Mercedes-AMG CLA45 and the upcoming GLA45. The first engine in the family is a 2.0-liter four-cylinder code named the OM 654. Either way, Audi's work on e-turbos soon will be challenged in the luxury-tech cage fight by Mercedes, and never before have we looked so forward to a bunch of blown hot air. Mercedes-AMG Four-Cylinder Gaining Electric Turbocharger . In the first stage, piezo direct injectors supply fuel to the combustion chambers and when needed, solenoid port injectors supplement the DI system. The latest OM 654 2.0-liter turbo-diesel four-cylinder debuts in the Euro-spec 2017 E220d this spring, and sometime later in the U.S. (with a higher numeral, due to our hubris over engine … So, unless AMG is hiding the e-turbo detail from the current M139's spec sheet, and it's responsible for the 416-hp iteration, the tech is likely headed for later versions of the 45-badged compact AMGs. Shock news, Eupopean manufacturer makes a 2.0 4 cylinder engine and turns up the turbo. That makes it the most powerful four-cylinder engine in series production, and its specific output is higher than pretty much every modern supercar. Mated to a seven-speed automatic transmission that directs power to the rear wheels or through 4MATIC® All-Wheel Drive*, this engine offers confident power in any situation. Air gets to the turbo housing via a ducted engine cover, which is designed like an air deflector—a technique borrowed from the AMG GT's twin-turbo 4.0-liter V-8. The new Ford Focus and Fiesta ST use 1.0-liter three-cylinder engines. Your information will be collected and used in accordance with our  Privacy Policy. Some owners in our survey reported various problems with the 3.0-liter turbo V6 engine in the Lincoln MKZ sedan and with the Hyundai Tucson’s 1.6-liter turbocharged four-cylinder engine. And the diversity of brands that have invested in this engine range from Hyundai and Honda to Land Rover and Mercedes-Benz. The U.S. will definitely get this engine in the upcoming next-gen CLA45, as well as the next-gen GLA45 and the new GLB45 crossovers. We likely will have to wait for those compact AMGs' mid-cycle refreshes or redesigns in a couple of years, then, to see e-turbo and 48-volt systems enter production. The low-friction, high-strength crank assembly consists of a forged steel crankshaft and forged aluminum pistons. The engine's electric water pump operates separately from the engine speed and allows the engine block to warm up more rapidly by activating late. The coating was first used on the M156 6.2-liter V-8 and is currently used in Mercedes' Formula 1 cars. This allows for a flatter front section, which helps with aerodynamics, as well as shorter air ducts with fewer diversions both for the exhaust and the intake. The Mercedes AMG CLA45 is the first 4-cylinder AMG model and it also happens to be the most powerful 2.0-liter turbocharged production engine on the planet. Mercedes-AMG just broke our brains with the M139, a 416-hp 4-cylinder engine. © 2021 MotorTrend | MOTOR TREND GROUP, LLC. You can The twin-scroll turbocharger is new and fitted with roller bearings for the first time, reducing mechanical friction so the turbo can spin more easily. Romain Nicolas. Using a slim, 1.6-inch-thick electric motor integrated with the turbocharger's compressor-wheel shaft, AMG's e-turbo design (developed in conjunction with Garrett) enables the turbo to be spun up before exhaust gases are flowing, massively improving low-speed engine response and power. E-turbos, as they're sometimes called, do the same work as normal turbochargers—so, acting as a compressor and forcing a greater density of air into the combustion chamber—but instead of being driven solely by an engine's exhaust gases, they're aided in spinning up by an electric motor. It also operates on-demand, and is able to be switched on or off at lower engine speeds as needed. Mercedes-AMG's New 416-HP Engine Is the World's Most Powerful Four-Cylinder The turbocharged 2.0-liter inline-four will be stuck in … By clicking Sign Up, you agree to the  Terms of Use. Dual overhead camshafts control the 16 valves, and the engine has Camtronic variable exhaust-valve timing. Editors chose this “unassuming but capable” Mercedes I-4 turbo as the one that “does it all: smooth and quiet at start-up and idle, rev-happy and ready to … Look for this engine in the A45, CLA 45, and GLB 45 in the near future. This Mercedes-Benz GLS boasts a Twin Turbo Premium Unleaded V-6 3.0 L/183 engine powering this Automatic transmission. Another first for an AMG four-cylinder is the use of both port and direct fuel injection, which AMG says was necessary to achieve the high specific-output figure. Christian Enderle, Head of Engine and Powertrain Development at Mercedes-AMG: “With the new AMG 4.0-litre V8 biturbo engine, we present a fascinating and powerful sports car engine, which also achieves the next step in efficiency due to numerous measures“. (The S generates a bit more boost.) The first car to receive the M139 engine will be the A45 hatchback, which should debut within the next couple of months. It’s not like Mercedes had a slouch of an engine before the new M 139. AMG says the closed-deck construction is taken from race cars and gives the crankcase an exemplarily rigidity-to-weight ratio and allows for higher peak combustion pressures. The latest turbocharged engines are smaller – in many cases very small. The larger sump has baffle plates to reduce the chance of oil starvation in long corners. . Only 32,896 Miles! We may earn money from the links on this page. . Unlike the previous engine (and the engine in the new AMG 35 models), which was mounted transversely, this new one breaths opposite so the exhaust manifold and turbocharger are at the rear (next to the firewall) and the intake system is at the front (next to the bumper). The vented oily air easily goes through the turbo blades and this oil and sludge begin to accumulate on walls of the intake channels, swirl valves and etc. Someone Bought the Oldest New Car for Sale in U.S. This system, by the way, is powered by a 48-volt electrical system like that in a rash of new luxury products and mild-hybrid vehicles. That increased flow helps the turbocharger respond more quickly at low engine speeds, as evidenced by the lack of turbo lag during our test drives. The 4 cylinder turbo engine gets slightly less highway mpg; both get about the same city mpg. Mercedes-AMG builds the world’s most powerful turbo 4-cylinder engine for the new A45 – 416 hp, 500 Nm. The engine block is from chill-cast aluminum, meaning molten aluminum is poured into a water-cooled metallic mold that allows quick cooling and solidification. Utterly new cylinder block, made of aluminum alloy with cast iron sleeves ST use 1.0-liter engines! 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