2014 Audi A4 3.0 TDI – Review and Road Test

By Christian Stampfer on 28 October 2014
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We Say Goodbye to the Current Generation Audi A4

MUNICH – The Audi A4 is now in the last stage of its product lifecycle and its successor is already on the horizon. Audi’s competitors in the premium sedan market, BMW and Mercedes-Benz, already introduced their latest sedans some time ago while the A4 received its mid-life refresh in late 2011. European customers can choose among six gasoline and eight diesel-powered engines, although only one, a four-cylinder 2.0-liter turbocharged version, is available in the United States.

While there is no hybrid version of the A4 available, the Ingolstadt-based automaker does offer an ultra-efficient version of its successful 2-liter diesel engine, the A4 2.0 TDI ultra, capable of achieving a fuel economy rating of 58 mpg (4.0 l/100 km).

In September, I had the opportunity to spend a week with an Audi A4 3.0 TDI clean diesel. Our short-term test car arrived with the latest safety and technology features, such as radar-based adaptive cruise control, active lane and side assist, as well as a Bang & Olufsen sound system. The Daytona grey metallic exterior was a nice fit to the Nappa black leather seats.

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ENGINE AND TECHNOLOGY

The A4’s 3.0-liter diesel engine with a power output of 245 horsepower (180 kW) and the Audi clean diesel technology is the most powerful variant of all eight 2.0- and 3.0-liter diesel engines Audi makes available for the vehicle. The turbocharged V6 diesel engine uses common-rail direct injection with Bosch piezo-injectors and develops maximum power between of 4,000 and 4,500 rpm.

The A4’s 427 pound-feet of torque is available between 1,750 and 2,500 rpm. The 3,979-pound A4 accelerates from a standstill to 62 mph (100 km/h) in 5.9 seconds and offers a maximum speed, electronically limited, of 155 mph (250 km/h). Audi claims an A4 combined fuel economy of 41 mpg (5.7 l/100 km).

Our A4 test car offered not only a powerful engine but at the same time is the cleanest diesel version of the A4 line-up. The clean diesel version of the 3.0 TDI engine complies with the strict, but not yet in place, regulations of the upcoming EU6 emission standard. The system uses a diesel particulate filter and an oxidation catalyst with a NOx absorber catalyst to reduce nitrogen oxide emissions. The AdBlue urea solution needs to be refilled at least once between the regular service intervals. Thanks to its complex exhaust filter system, the A4 emits only 149 g of CO2 per kilometer.

Click here to continue to Page 2Driver Assistance Technologies and Driving the Audi A4 3.0 TDI

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