The Audi A6 C4 2.5 TDI 140 was produced from 1994 to 2002.
It had a 2497cc inline-5 diesel engine with intercooler and turbocharger.
The engine produced 85 kW (115 hp) at 3800 rpm and 250 Nm of torque at 1800 rpm.
The fuel tank capacity was 70 liters.
The Audi A6 C4 2.5 TDI 140 had a claimed average fuel economy of 7.3 L/100km.
It came with a 4-speed automatic transmission and a 5-speed manual transmission.
The vehicle's top speed was electronically limited to 195 km/h (121 mph).
In 1999, the engine power increased to 92 kW (125 hp) due to revised engine management software.
The Audi A6 C4 2.5 TDI 140 had a boot space capacity of 420 liters.
It was available with a range of trim levels, including the base model, GL, and Quattro versions.
The vehicle's dimensions were 4748 mm in length, 1790 mm in width, and 1431 mm in height.
The Audi A6 C4 2.5 TDI 140 had a kerb weight of around 1540 kg.
It featured a MacPherson strut front suspension and a trapezoidal link rear suspension.
The vehicle's wheels were 16-inch alloy wheels as standard, with 17-inch alloys available as an option.
In the UK market, the Audi A6 C4 2.5 TDI 140 was priced from around £21,000 in 1999.
The engine used a Bosch VP37 or VP44 fuel pump, depending on the production date.
It had a variable intake manifold and an exhaust gas recirculation system to improve efficiency and reduce emissions.
The Audi A6 C4 2.5 TDI 140 had a claimed dry weight of around 1420 kg.
In 2001, the vehicle underwent a facelift with revised front and rear bumpers.
The Audi A6 C4 2.5 TDI 140 was available in a range of colors, including Alpine White, Glacier White, and Metallic Black.
It featured Audi's MMI infotainment system as an option on higher trim levels.
In some markets, the vehicle was also sold with a 3-speed automatic transmission.
The engine used a common rail fuel injection system from 1999 onwards.
It had a maximum trailer weight capacity of around 1100 kg.
The Audi A6 C4 2.5 TDI 140 had a range of standard and optional equipment, including air conditioning, electric windows, and a CD player.
In the US market, the vehicle was sold as an import with a 3-speed automatic transmission.
It featured Audi's SRS (Supplemental Restraint System) airbags as standard on all trim levels.
The engine used a diesel particulate filter from 2000 onwards to reduce emissions.
The Audi A6 C4 2.5 TDI 140 had a claimed average CO2 emission of around 180g/km.
It was available with a range of wheels, including alloy and steel options.
In some markets, the vehicle was also sold with a sport suspension package as an option.
The Audi A6 C4 2.5 TDI 140 had a claimed average fuel consumption of around 7.3 L/100km on the EU combined cycle.
It featured Audi's 'Audi MMI navigation plus' system as an optional feature on higher trim levels.
In some markets, the vehicle was also sold with a sunroof and/or rear spoiler as an option.
The engine used a swirl chamber fuel injection system prior to 1999.
The Audi A6 C4 2.5 TDI 140 had a claimed average exhaust emissions of around 0.1g/km for particulate matter, 0.3g/km for carbon monoxide, and 80g/km for hydrocarbons.