Part 2: Mercedes-AMG Engines in Depth

Press Release

Part 2: Mercedes-AMG Engines in Depth

Versatile eight-cylinder powerplant:
the AMG 5.5-litre supercharged V8 engine

• 5.5-litre V8 developing up to 270 kW/367 hp used in eight AMG models
• High-tech engine with three valves per cylinder and twin-spark ignition
• Sophisticated exhaust system curbs emissions

The sophisticated 5439-cc V8 engine, which made its debut in the E 55 AMG Saloon in 1997, is used in eight of the models in the Mercedes-AMG GmbH family. Featuring the hallmark three-valve design and twin-spark ignition of all the Mercedes-Benz V6 and V8 engines, the lightweight eight-cylinder unit develops between 255 kW/347 hp and 270 kW/367 hp, depending on model, and delivers maximum torque of between 510 and 530 Nm. With a hefty 450 Nm already on tap at around 2000 rpm, dynamic acceleration and responsiveness are a matter of course. The racing-type forged aluminium pistons ??????????????????????????????????????? reliably cooled by specially developed oil spray nozzles, even under extreme loads ??????????????????????????????????????? also play their part, while a newly developed twin-pipe intake system, "assembled" camshafts and variable intake manifold ensure optimal volumetric efficiency and provide the foundation for sporty performance. Low pollutant emissions despite high performance A new exhaust system with larger pipe diameter and modified silencers results in low noise levels and low exhaust backpressure. State-of-the-art catalytic converters and an engine management system tried and tested in countless series of tests ensure effective emission control, meaning that Mercedes-AMG cars with the 5.5-litre V8 engine meet all emissions limits currently in force throughout the world. The most important data for the AMG 5.5-litre V8 engine at a glance, based on the example of the CLK 55 AMG: