2018 Audi A4 prices

There are 103 used 2018 Audi A4 cars for sale from UK dealers on AskCar, as of 9 November 2026. Typical asking price £11,500 (the median: half cost less, half cost more). The cheapest is £4,290. The middle half are priced between £10,000 and £13,500. Median mileage: about 75,000 miles.

Dealers lowered the asking price on more than a third of 2018 Audi A4 cars: 35 of the 103 in the 14 days to 9 November 2026.

2018 Audi A4 prices by engine and mileage

A 2018 Audi A4 2.0 diesel car typically costs £12,800, against £11,000 for the 1.4 petrol, as of 9 November 2026.

A 2018 Audi A4 1.4 petrol car with 40,000 to 60,000 miles typically costs £13,100, against £10,000 with 60,000 miles or more.

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
1.4 petrol£11,000Too few for saleToo few for sale£13,100£10,000
2.0 diesel£12,800Too few for saleToo few for saleToo few for sale£11,500

2018 Audi A4 prices by trim

TrimTypical asking price, 2018 cars
S Line£12,000
Black Edition£12,800
SEToo few for sale
SportToo few for sale

Only 10 of the 2018 Audi A4 cars for sale are SE, too few to give a typical asking price.

Only 7 of the 2018 Audi A4 cars for sale are Sport, too few to give a typical asking price.

Typical asking prices are of 2018 Audi A4 cars for sale on 9 November 2026, and are given only where at least 20 cars with a price are for sale.

2018 Audi A4 against other years

A 2017 Audi A4 car has a typical asking price of £10,300 and a 2019 one £14,400, as of 9 November 2026.

AskCar lists 1,451 used Audi A4 across the UK, from 964 dealerships.

As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2018 Audi A4 cars for sale now, page 3 of 3

This page lists 2018 Audi A4 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 1,401 priced Audi A4 adverts on AskCar as of 9 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 Audi A4.

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 4 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Audi A4 by gearbox, fuel and body

Audi A4 prices by year

Audi A4 by trim

2018 Audi A4 by price

2018 Audi A4 by trim

Audi A4 by price

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