March 10, 2001

New Eight-Cylinder Version: Audi allroad quattro 4.2
Audi AG Press Release

The Audi allroad quattro has been combining "the best of both worlds" since its successful market launch in May 2000. It demonstrates the scope for a vehicle that has the elegance, road behaviour and comfort of the luxury class - and also fully-fledged off-road capabilities. Audi has now pulled off a master-stroke in adding a V8 engine to its range of power units, which already includes the 2.5 TDI (132 kW/180 bhp) and 2.7T (184 kW/250 bhp). The new top version, called the Audi allroad quattro 4.2, has a power output of 220 kW (300 bhp), the incomparable flair of an eight-cylinder model and much more, too.

Outstandingly dynamic

The 4.2-litre V8 engine elevates travel in the Audi allroad quattro to the status of a very special experience. This engine develops 220 kW (300 bhp). The broad peak-torque range of this quiet-running eight-cylinder unit is even more impressive: it achieves a constant 380 Nm between 2700 and 4600 rpm. The Audi allroad quattro 4.2 with its standard-fit 5-speed tiptronic accelerates from 0 to 100 km/h in just 7.2 seconds. Its top speed is 240 km/h.

Pioneering engine technology

A V8 engine with a displacement of 4.2 litres is already available in the Audi A6 4.2 quattro and S6, with a forward structure that is 37 millimetres longer. The shorter overall length of the allroad quattro is beneficial for the distribution of axle loads, and it enhances the car's overtly all-terrain abilities.

An utterly new design means that it can be installed in the short front end. The toothed belt previously to be found on the engine's front end has been replaced by a chain drive to its rear. Two controllable electric cooler fans take the place of the large viscous fan at the front of the vehicle.

The new Motronic ME 7.1.1 integrates the Audi allroad quattro 4.2's power take-offs into the engine management concept on a torque basis. Its lambda control feature constantly determines the operating conditions and optimises the relationship between torque and fuel consumption, and thus also the exhaust emission values. The control unit maintains an ideal air/fuel mixture in the cylinder. Accelerator movements are translated directly into propulsion by means of electrical pulses without any delay ("drive-by-wire"). Four knock sensors assure ultra-precise knock control. Cylinder-specific ignition timing moreover assures exemplary engine smoothness control and excellent idle running.

A two-stage variable intake manifold made from magnesium guarantees maximum engine output higher up the speed range and ample low-end torque. Continuous camshaft control also contributes towards impressive dynamism across an extremely wide range of engine speeds.

The Audi allroad quattro 4.2 has one variable camshaft system per bank of cylinders, to vary the valve timing of the inlet camshafts according to the engine speed range. An ample torque curve and quiet running in combination with low exhaust emissions are the result. The 4.2-litre engine undercuts the limits laid down in the EU4 standard.

New: tiptronic with Sport program and remote one-touch function

The Audi allroad quattro 4.2 has a 5-speed tiptronic as standard. This convenient automatic transmission with Dynamic Shift Program DSP adapts to the driver's style. It permits manual selection of gears even with the selector lever in the tiptronic gate. In addition to DSP, there is a Sport program that places the emphasis squarely on dynamic performance. In the "S" selector lever position the transmission changes up later and down earlier. The driver thus benefits from maximum pulling power and can make even better use of the available torque.

The steering wheel with gearshift control means that the driver can now change directly between the automatic mode and manual gear selection at the push of a button ("remote one-touch function"). The driver's hands can remain firmly on the steering wheel if, for instance, he simply wants to shift down a gear before overtaking. The tiptronic reverts to the fully automatic mode eight seconds after the driver has intervened manually.

Running gear and drivetrain

Exact feedback on the current operating status, high steering precision and dependable self-steering behaviour are the advantages of the Audi allroad quattro's four-link front suspension. The ingenious axle geometry with very short disturbance-force leverage largely eliminates any effects of driveline forces on the steering.

The wheel control elements at the front are bolted to the body by means of a subframe of weightsaving steel design and four rubber/metal mounts. These mounts eliminate suspension vibration and isolate the body from undesirable noise and vibration. The use of aluminium for a large number of wheel control elements saves weight and thus reduces the unsprung mass, with a positive effect on the vehicle's handling and ride comfort.

The allroad quattro's double-wishbone rear axle has been configured for optimum ride comfort and high tracking stability. There are upper and lower triangular wishbones for wheel control. Toe-in control for stabilisation during cornering is handled by two rod-type control arms. The wheel control components are, in turn, connected to the body by means of a torsionally and flexurally rigid subframe and rubber-metal mounts. This design assures a very high standard of dynamic handling and ride comfort.

To support the driver, in common with other models the Audi allroad quattro 4.2 has the Electronic Stability Program ESP with ABS and Electronic Brake-force Distribution EBD, Anti-Slip Regulation ASR and an Electronic Differential Lock EDL as standard.

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