Audi A6 (C6) Allroad Quattro 2.7 TDI tiptronic DPF Fuel Consumption (Economy), Emissions and Range Fuel Consumption - Economy - Combined: 31 MPG 7.5 L/100 km 38 MPG UK Re: Audi A4 2.0 TDI Fuel Economy – 29-04-2012, 08:30 AM. There is a recent thread discussing miles per tank for this engine. However I typically get 47-48 mpg on a good run and can see 50+ if driving at 70 mph ish on the motorway. I once saw 62mpg driving at 60-65 and resetting the trip whilst on the motorway. In combined cycle (city and motorway), the Audi A6 2008 2.7 TDI fuel consumption is 6.2 litres per 100km (16.1 km/l), fuel consumption in city - 8.3 l/100km, highway fuel economy - 5 l/100km. Fuel tank capacity is 70 litres or 18.49 gallons , which gives a mileage up to 1120 kilometers without refueling in urban cycle and even up to 1400 A6 / S6 (C5 Platform) Discussion - no power to the fuel pump fuse - HI guys i have a 2001 audi a6 2.7T. i got the car and drove it right from the auction and it was great. after a few weeks of great driving. i come out, right after i get home from work and the car just would not start. would crank but would never Will fitting Michelin Cross Climate+ tyres affect my fuel consumption? lowest fuel cost. Latest Submissions. GLA (2014 - 2020) Audi A6 (2004 - 2011) 2.7 TDI The Audi A6 Avant 2.0 TDI belongs to the C6 model family from Audi. Its engine is a turbocharged diesel, 2 litre, double overhead camshaft 4 cylinder with 4 valves per cylinder. This powerplant produces 138 bhp (140 PS/103 kW) of power at 4000 rpm, and maximum torque of 320 N·m (236 lb·ft/32.6 kgm) at 1750-2500 rpm. The Audi A6 (C4) 2.5 TDI has a Inline 5, Diesel engine with 2461 cm3 / 150.2 cu-in capacity. How many horsepower (hp) does a 1994 Audi A6 (C4) 2.5 TDI have? The 1994 Audi A6 (C4) 2.5 TDI has 116 PS / 114 bhp / 85 kW. Step 5 – Check fuel filter and pump or crank shaft position sensor. Either one of these can cause your engine to just stop without a sputter or stall, but a complete shutdown which is remedied after a few minutes of cool down. So you are cruising right along and suddenly, and without warning, your engine shuts off. QEsnsF.