2018 Audi A4 2.0 TDI S Line

Overview

• Make: Audi
• Model: A4
• Trim: S Line
• Version: 2.0 TDI S Line S tronic FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2018
• Mileage: 86,504 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Silver
• CO2: 109 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A4 S Line is advertised with 86,504 miles, approximately 12,600 above the typical mileage for its age. Its asking price of £12,950 is £1,415 above the AskCar estimate of £11,535. To work out the AskCar estimate, we analyse UK dealer adverts for 1,427 Audi A4 cars across different ages and specifications. Since we first spotted the advert 40 days ago, the asking price has dropped by £1,000. We checked its advertised mileage against the government's MOT record, and they match. The seller is Campbell Trade Sales, based in Armagh. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £1,415 (12%) over the AskCar estimate of £11,535.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 1,427 priced Audi A4 adverts across different ages and specifications, as of 4 November 2026.

A 2018 Audi A4 with the 2.0 diesel engine is typically advertised at £12,600: the median of the 46 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 Audi A4 has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 25 September 2026 at £13,950. Its asking price is now £12,950, £1,000 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 25 September 2026: £13,950
• 28 October 2026: £12,950

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 22 July 2027.

It failed its MOT on 22 July 2026 (offside rear coil spring fractured or broken) and passed 1 day later, on 23 July 2026.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge 2.4mm and inner edge.

Mileage at that test: 86,168 miles, which matches the advertised 86,504 miles.

Advertised mileage is about 12,600 miles higher than the median mileage of a 2018 Audi A4 on AskCar.

Similar cars

5 other 2018 Audi A4 S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £11,500 to £16,990, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 83,000 miles. Price: £12,995, the same price as this car. Dealer: Cars of Conwy in Colwyn Bay. AskCar page: https://askcar.co.uk/car/audi-a4-2018-af10c433b511
• 2018 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 91,400 miles. Price: £11,500, £1,450 less than this car. Dealer: Freeman Motors in Oldham. AskCar page: https://askcar.co.uk/car/audi-a4-2018-9dff009210b5
• 2018 Audi A4 S Line, 2.0 diesel saloon, white. Mileage: 74,552 miles. Price: £12,800, £150 less than this car. Dealer: Marshall BMW Scunthorpe in Scunthorpe. AskCar page: https://askcar.co.uk/car/audi-a4-2018-e204df0cd915