R 63 AMG 4MATIC: New combination of dynamism, power and comfort
* 6.3-litre V8 engine with 375 kW/510 hp and 630 Nm of torque
* Acceleration from zero to 100 km/h in 5.0 seconds
* 7G-TRONIC seven-speed automatic with AMG SPEEDSHIFT
* High-performance AMG braking system and AIRMATIC air suspension
* Striking appearance with AMG bodystyling; exclusive range of standard equipment
Stuttgart, Aug 02, 2006
The new R 63 AMG 4MATIC offers sporty driving pleasure, a spacious interior and first-class comfort for up to six people in an unparalleled combination. This particularly dynamic interpretation of the Mercedes-Benz R-Class is powered by the new AMG 6.3-litre V8 engine. In the R 63 AMG 4MATIC, Mercedes-AMG once again demonstrates its expertise in designing unique high-performance cars.
The 4+2-seater is a dynamically sporty trendsetter, featuring cutting-edge technology, an avantgarde look and a sumptuous interior, offering a high level of versatility (load capacity of up to 2385 litres in the long-wheelbase version), exemplary safety, comfort and a high-class appearance. The R 63 AMG 4MATIC thus meets the wishes of today's leisure-orientated individuals looking for a car that is both versatile and agile.
A newly developed, high-displacement AMG eight-cylinder engine with 375 kW/510 hp and 630 Nm ensures drivers will enjoy excellent performance and a dynamic ride. The short-wheelbase R 63 AMG 4MATIC accelerates from 0 to 100 km/h in 5.0 seconds (R 63 AMG 4MATIC long: 5.1 s.); the vehicle's top speed is electronically limited to 250 km/h.
Thanks to its large displacement of 6208 cc, the AMG V8 provides around 20 percent more torque than other naturally aspirated engines in this performance class. The unique combination of a high-revving design and a large engine displacement brings together the best of two worlds: excitingly high engine speeds and at the same time powerful torque at low engine speeds. A high level of agility and dynamic responsiveness at all engine speeds brings home to the driver of the R 63 AMG 4MATIC the emphatically sporty character of the new AMG V8 engine.
Aluminium V8 naturally aspirated engine packed with racing technology
Manufactured completely out of high-strength aluminium, the AMG V8 naturally aspirated engine features a number of technologies borrowed from motor sports, thus impressively documenting the motor racing tradition of AMG. The vertical arrangement of the intake and exhaust ducts as well as the use of a new variable intake manifold with two integrated throttle valves ensures that the cylinders are optimally charged. Bucket tappets in the cylinder heads permit a stiff valve train and therefore high engine speeds.
Variably adjustable camshafts, a particularly rigid closed-deck crankcase and cylinder bores with the revolutionary new TWAS coating are just some of the other prominent features of the cutting-edge V8 engine made by Mercedes-AMG. The electronically controlled fuel supply system with newly developed components operates at a pressure of 3.8 to 5.0 bar depending on requirements. The fuel pressure adapts immediately to the desired performance level and external temperature. Following a command from the accelerator pedal, it takes just milliseconds for the vehicle electronics to adjust the pressure accordingly. This control system guarantees a spontaneous response and sporty thrust at any engine speed and load range.
Patented oil and water cooling system with its own heat exchanger
The cooling system of the R 63 AMG 4MATIC was completely redesigned as well. A high-performance water cooler ensures effective cooling in all driving situations. Large-sized engine and transmission oil coolers help effectively cool the relevant lubricants. In addition, a technology that Mercedes-AMG has registered for a patent ensures the system is as efficient as possible. Through the intelligent interconnection of the water and oil cycles, the performance of the two systems can be coordinated in a variable manner. At the heart of the system is a direct current heat exchanger that connects the two circuits to each other. When the engine oil temperature rises dramatically under extreme operating conditions (such as during dynamic driving on a mountain pass), the engine's electronic control system activates an auxiliary water pump to increase the throughput rate of the coolant in the heat exchanger. The difference in the temperature of the engine oil and the coolant water forcibly reduces the temperature of the motor oil in the overall system. At high external temperatures, the water cooler is assisted by a large 850-watt suction-type fan regulated by back-pressure valves.
AMG sports exhaust system with enlarged pipe diameters
When accelerating, the driver of the R 63 AMG 4MATIC hears the thrilling sound produced by the vehicle's high-revving design and the enormous power of the eight-cylinder naturally aspirated engine. At the same time, the sports powertrain with its smooth running characteristics ensures motorists can enjoy the kind of relaxed cruising typical of a Mercedes. To meet these demands, AMG has developed a completely new sports exhaust system which, along with sophisticated engine technology, guarantees that the exhaust gas is purified effectively. As a result, the new AMG high-performance car complies with both the EU4 standard and the even more stringent US limits that are either already in effect or will be implemented in the future.
A major contribution to efficient exhaust gas treatment is provided by the fully adjustable camshafts. The AMG engineers used a trick known as valve overlap to achieve two goals; the decreased losses from the gas cycle processes help reduce both the engine-out emissions in the exhaust gas and the fuel consumption. The secondary air injection puts the exhaust gases through an afterburning process which, in turn, generates higher exhaust gas temperatures that help support the heating process. This intricate system helps reduce the amount of carbon monoxide and hydrocarbons in the exhaust. The composition of the mixture is continuously monitored by oxygen sensors, which transmit the data to a computer that readjusts the mixture.
Sophisticated exhaust gas technology with four ceramic catalytic converters
The AMG V8 engine in the R 63 AMG 4MATIC is also equipped with an appropriate oxygen sensor control system. The system can precisely regulate the composition of the intake mixture under all operating conditions, so that the catalytic converters will not be damaged. This approach also boosts fuel efficiency under full load, because the mixture is not as rich as in engines lacking this intelligent control system. Four oxygen sensors are used to monitor and regulate the exhaust gas system. The two front sensors ensure the engine remains in an optimal control range, while the two sensors downstream of the catalytic converters are responsible for the process known as On-Board Diagnosis II.
The exhaust gas treatment process commences in the air-gap-insulated manifolds with walls only 1.0 millimetre thick. As a result, the exhaust gas temperature can reach 280
