Audi, A6, C5, 2.5 TDI (1997-)

The Audi A6 C5 was a mid-size executive car produced by German manufacturer Audi from 1994 to 2004. The 2.5 TDI model was a diesel variant that utilized a turbocharged inline-5 cylinder engine producing 150 horsepower and 265 Nm of torque.

Engine Specifications:

• Type: 25D, inline-5 cylinder
• Capacity: 2497cc
• Power output: 110 kW (150 hp) at 4200 rpm
• Torque output: 265 Nm (195 lb-ft) at 1900-2800 rpm

Transmission and Drive:

• Transmission: 4-speed automatic or 6-speed manual
• Drive type: Front-wheel drive, with optional Quattro all-wheel drive system on higher trim levels.

Interior and Dimensions:

• Seating capacity: 5 passengers
• Length: 4739 mm (186.6 in)
• Width: 1737 mm (68.4 in)
• Height: 1400 mm (55.1 in)
• Wheelbase: 2668 mm (104.9 in)
• Cargo space: 420 liters (14.8 cu ft) with rear seats up, 1150 liters (40.5 cu ft) with rear seats folded.

Features and Options:

• Optional features included climate control, cruise control, leather upholstery, sunroof, and a premium audio system.
• Standard safety features included dual front airbags, anti-lock braking system (ABS), and electronic stability program (ESP).
• Optional features for the 2.5 TDI model included a driver's side airbag, rear fog lights, and a CD changer.

Fuel Economy and Performance:

• The 2.5 TDI was capable of returning up to 10.6 liters per 100 kilometers (27.2 mpg) in combined driving cycles.
• Top speed: electronically limited to 155 km/h (96.3 mph), with an estimated 0-60 mph time of around 11 seconds.

Reliability and Maintenance:

• The A6 C5 had a generally good reputation for reliability, although some early models were plagued by issues with the timing belt and VCT system.
• Regular maintenance included oil changes every 15,000 kilometers (9,320 miles), tire rotations, and brake pad replacements as needed.