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This car has been superseded by a newer model, click here to go to the latest Audi A6 Allroad (12-18) review.

View all Audi A6 reviews
Parkers overall rating: 3.5 out of 5 3.5

Even though a diesel engine is available in two outputs neither version is particularly frugal so whichever model you go for fuel costs will be considerable. Insurance and road tax aren't cheap either while Audi servicing tends to be expensive, especially at main dealers. It's worth finding an independent specialist which should work out cheaper.

The Allroad is a polluting model. With an average of 286g/km CO2 across the model line-up, its emissions are high for a small 4x4. However, it's worth noting that the line up has a high number of diesel models, bringing the average down and giving buyers more choices of low-emission versions. Diesels typically produce less CO2 than petrol engines with similar power outputs.

The range is disappointingly thirsty, averaging 24mpg.

Reliability in the A6 tends to be exemplary, with only occasional problems reported by owners since it was launched in 1997. Maintaining a full Audi service history will help this.

Estimated fuel cost per year

Fuel type Pence per litre Estimated cost per year *
Unleaded 128p £2,771 - £4,476 *
Diesel 131p £1,861 - £2,054 *

* The estimated fuel cost figure is based on an annual mileage of 10,000 miles and is a guide to how much this model will cost in fuel each year. It's calculated using the model's average MPG (calculated from both town centre and motorway driving) and the average fuel price from around the country. Actual fuel costs will vary based on driving style and road conditions.

Highest and lowest CO2 emissions

Engine CO2 emissions Road tax (12 months)
2.5 TDI (163ps) Diesel,
2.5 TDI Diesel
238 g/km (Min) £265 - £325
4.2 V8 Petrol 331 g/km (Max) £325

Ongoing running costs

Road tax (12 months) £265 - £325
See tax rates for all versions
Insurance group 29 - 37
How much is it to insure?

Vehicle excise duty (VED) varies according to the CO2 emissions and the fuel type of the vehicle. For cars registered before 01 March 2001 it is based on engine size. For cars registered on or after 01 March 2001 the VED or road tax is based on the car's CO2 emissions.