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Audi A6 2006 fuel consumption

Audi A6 from 2006 to 2008 real fuel consumption according to user reports is approximately 22% higher compared to advertised fuel consumption. For petrol engines real consumption is in average 24% higher, but for diesel engines is approximately 20% higher. Starting from 2006 Audi A6 average difference between actual owner-reported fuel consumption and stated consumption was significantly higher than average, at 2007 difference between owner-reported and advertised fuel economy became less than industry average. For more details, see the table below.

Year-to-year deviations of actual owner-reported average fuel consumption from advertised values

YearGasoline carsDiesel cars
All carmakersAudi A6All carmakersAudi A6
2006+9%+15% +11%+3%
Show all years
2007+11%+15% +12%+3%
2008+12%+15% +13%+3%

See below for the actual consumption of generations and versions of Audi A6.

2006 - 2008

Audi A6 2006 Allroad wagon fuel economy

Average advertised fuel consumption for petrol engines21.4 MPG
11.0 l/100km
Average real-world fuel consumption for petrol engines19.5 MPG
12.1 l/100km
Average real gasoline consumption difference *+10%
Average advertised fuel consumption for diesel engines27.2 MPG
8.6 l/100km
Average real-world fuel consumption for diesel engines26.5 MPG
8.9 l/100km
Average real diesel consumption difference *+3%

According to advertised fuel consumption, a Audi A6 2006 with automatic transmission consumes on average 0.2 liters per 100 km or 3% more fuel than similar versions with manual gearbox. Based on user-reported real-world fuel consumption, this generation Audi A6 with automatic transmission consumes around 0.7 litres per 100 km or 7% more fuel than a version with the same engine but a manual gearbox.

Compared to similar cars from other manufacturers, the Audi A6 fuel economy is noticeably below average - at least two thirds of similar cars have lower fuel consumption. The best real fuel economy in its class according to user reviews of all the modifications has modification with 3.1 petrol engine and manual transmission (Audi A6 2006 3.1 allroad quattro 3.2 FSI 255 HP 4x4). However, of all modifications the best advertised fuel economy in its class has Audi A6 with 4.2 petrol engine and automatic transmission (Audi A6 2006 allroad quattro 4.2 FSI 350 HP 4x4).

ModificationClaimed consumptionReal consumption
2.7 liter diesel engine
Audi A6 2006 allroad quattro 2.7 TDI 180 HP AWD automatic 27.0 MPG
8.7 l/100km
27.4 MPG
8.6 l/100km-1%
3.0 liter diesel engine
Audi A6 2006 allroad quattro 3.0 TDI 233 HP AWD manual 28.0 MPG
8.4 l/100km
27.0 MPG
8.7 l/100km+4%
Audi A6 2006 allroad quattro 3.0 TDI 233 HP AWD automatic 26.7 MPG
8.8 l/100km
25.3 MPG
9.3 l/100km+6%
3.1 liter petrol engine
Audi A6 2006 3.1 allroad quattro 3.2 FSI 255 HP AWD manual 21.4 MPG
11.0 l/100km
21.4 MPG
11.0 l/100km0%
Audi A6 2006 3.1 allroad quattro 3.2 FSI 255 HP AWD automatic 21.4 MPG
11.0 l/100km
20.1 MPG
11.7 l/100km+6%
4.2 liter petrol engine
Audi A6 2006 allroad quattro 4.2 FSI 350 HP AWD automatic 21.4 MPG
11.0 l/100km
17.4 MPG
13.5 l/100km+23%

* - Difference between advertised and user reported fuel economy has been calculated taking into account only those car versions for which information is available both on the fuel consumption specified by the manufacturer and reported by users.

User-reported fuel consumption may not accurately represent all users' experiences due to variables such as driving conditions, driving style, technical condition of the vehicle, and other circumstances. Thus, it should not be relied upon as a representative indicator.