AUDI A4 2.0 TDI e- The new diesel-powered Audi A4 consumes a mere 4.6 l/100 km (51.13 US mpg)
- Emissions of just 119 grams of CO2 per kilometer (191.51 g/mile)
- Market launch in early June at a price of 30,800 euros
- A4 Avant also available as an ‘e’ model
“Efficiency is standard in every Audi. The A4 2.0 TDI e is particularly persuasive proof that efficiency, outstanding performance, comfort and driving enjoyment are not mutually exclusive,” says Michael Dick, Board of Management Member for Technical Development at AUDI AG. This ‘e’ model develops an output of 136 bhp (100 kW); it reaches 100 km/h (62.14 mph) in 9.5 seconds and swiftly tops out at 215 km/h (133.59 mph). The sedan can be ordered now and costs 30,800 euros. This remarkably efficient A4 is also available as an Avant.
The combined impact of several features facilitates the vehicle’s increased efficiency. The standard start-stop system is especially effective during city driving. As soon as the vehicle comes to a stop, the shift lever is in neutral, and the driver removes his or her foot from the clutch pedal, the system turns the engine off. The engine then turns back on as soon as the clutch pedal is depressed.
The start-stop system functions extremely quietly, smoothly, and quickly. While the driver is stepping on the clutch pedal to shift into first gear, the engine instantaneously returns to its idle speed. In the standardized driving cycle, the start-stop system reduces fuel consumption by some 0.2 liters/100 km, which equates to about 5 grams CO2/km (8.05 g/mile).
Furthermore, this ‘e’ model features a 6-speed manual transmission with a final-drive ratio of the rear axle higher by five percent — enabling a reduction in engine speed in each of the six gears. The engine-management system has also been modified for maximum efficiency. The fuel-saving low-resistance tires (205/60 R 16) improve rolling resistance and are exclusive to the A4 model line’s ‘e’ model. Standard equipment also includes the recovery of braking energy. Aided by intelligent alternator regulation, this system converts surplus kinetic energy to electrical energy during a vehicle’s braking phases. This electrical energy is temporarily stored in the electrical system’s battery. When the vehicle resumes acceleration, the battery supplies this stored energy to the vehicle’s network — reducing the load on the alternator and thus saving fuel.
An on-board computer with efficiency program is also part of the standard-equipment package. The driver information system with gearshift indicator and efficiency-data display notifies the driver when it is sensible to shift gears to conserve fuel. The on-board computer displays all fuel-efficiency data on the center screen. These recommendations enable drivers to conserve fuel to the tune of 30 percent — simply by modifying their particular driving habits. Audi’s efficiency program continuously analyzes the vehicle’s energy consumption and gives the driver situation-specific advice on how to optimize fuel efficiency based on the given driving situation or driving style.
The A4 2.0 TDI e also consumes less fuel thanks to enhanced aerodynamics made possible by additional aerodynamic-drag optimizations such as an underbody trim panel, the partially enclosed radiator grille, and the reduction in ride height of 20 millimeters (0.79 inches) facilitated by the sports chassis.
The A4 2.0 TDI e is also available as an Avant. Its combined fuel consumption amounts to just 4.9 liters of diesel per 100 kilometers (48.00 miles per U.S. gallon). This Avant consequently emits 129 grams of CO2 per kilometer (207.61 grams per mile). The basic price for the Avant is 32,800 euros.
[Source : AUDI]
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