The Audi A6 C4 was a series of executive cars produced by Audi from 1994 to 2004. The 2.5 TDI 140 variant was part of this lineup.
Engine:
Type: inline-5 cylinder diesel engine
Displacement: 2497cc
Power output: 104hp (77kW) at 4000rpm, but a later update increased it to 140hp (103kW)
Torque: 250Nm (184lb-ft) at 1800-3000rpm
Fuel injection: Bosch VP37 rotary fuel pump with 5 injectors
Transmission:
6-speed manual transmission with double cone synchronizers and a helical gear layout for improved durability
Gear ratios: 3.85, 2.19, 1.44, 1.00, 0.83, and 0.64
Dimensions:
Length: 4.84m (15.5ft)
Width: 1.74m (5.7ft)
Height: 1.46m (4.8ft)
Wheelbase: 2.67m (8.8ft)
Interior:
Available in various trim levels, including base, SE, and Quattro
Features a range of interior amenities such as air conditioning, central locking, and power steering
Performance:
Top speed: electronically limited to 195km/h (121mph)
Acceleration: 0-100km/h (0-62mph) in around 11 seconds
Fuel economy: up to 26.4mpg combined (based on European test cycles)
Reliability and Maintenance:
Generally considered reliable with a robust engine design
Routine maintenance included regular oil changes, timing belt replacements every 60,000km (37,000mi), and a clutch replacement interval of around 80,000km (50,000mi)