2018 Audi A6 Avant prices

There are 67 used 2018 Audi A6 Avant cars for sale from UK dealers on AskCar, as of 11 November 2026. Typical asking price £14,700 (the median: half cost less, half cost more). The cheapest is £8,850. The middle half are priced between £13,000 and £17,000. Median mileage: about 87,000 miles.

Dealers lowered the asking price on more than a quarter of 2018 Audi A6 Avant cars: 18 of the 67 in the 14 days to 11 November 2026.

2018 Audi A6 Avant prices by engine and mileage

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
2.0 diesel£14,200Too few for saleToo few for saleToo few for sale£13,800

Only 10 of the 2018 Audi A6 Avant cars for sale have the 3.0 diesel engine, too few to give a typical asking price.

Only 8 of the 2018 Audi A6 Avant cars for sale have the 1.8 petrol engine, too few to give a typical asking price.

2018 Audi A6 Avant prices by trim

TrimTypical asking price, 2018 cars
S Line£16,000
Black Edition£15,400
SE ExecutiveToo few for sale
SportToo few for sale

Only 11 of the 2018 Audi A6 Avant cars for sale are SE Executive, too few to give a typical asking price.

Only 2 of the 2018 Audi A6 Avant cars for sale are Sport, too few to give a typical asking price.

Typical asking prices are of 2018 Audi A6 Avant cars for sale on 11 November 2026, and are given only where at least 20 cars with a price are for sale.

2018 Audi A6 Avant against other years

A 2017 Audi A6 Avant car has a typical asking price of £14,200 and a 2019 one £17,500, as of 11 November 2026.

AskCar lists 796 used Audi A6 Avant across the UK, from 592 dealerships.

As of 11 November 2026, AskCar lists 593,449 cars and vans from 12,847 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2018 Audi A6 Avant cars for sale now, page 2 of 2

This page lists 2018 Audi A6 Avant cars not picked out on page 1, cheapest first.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 779 priced Audi A6 Avant adverts on AskCar as of 11 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 Audi A6 Avant.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 7 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Audi A6 Avant by gearbox, fuel and body

Audi A6 Avant prices by year

Audi A6 Avant by trim

2018 Audi A6 Avant by trim

Audi A6 Avant by price

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