2018 Audi A4 Avant 2.0 TDI S Line

Overview

• Make: Audi
• Model: A4 Avant
• Trim: S Line
• Version: 2.0 TDI S Line Manual FWD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2018
• Mileage: 49,000 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 116 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 49,000 miles, this 2018 Audi A4 Avant S Line has covered about 28,300 fewer miles than other 2018 Audi A4 Avant cars. Priced at £14,495, it is advertised £41 below the AskCar estimate of £14,536. To work out the AskCar estimate, we analyse UK dealer adverts for 1,244 Audi A4 Avant cars across different ages and specifications. It first appeared in our advert records 52 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Forsyth Street Cars, based in Airdrie. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £41 (under 1%) under the AskCar estimate of £14,536.

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 1,244 priced Audi A4 Avant adverts across different ages and specifications, as of 7 November 2026.

A 2018 Audi A4 Avant with the 2.0 diesel engine is typically advertised at £14,000: the median of the 30 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2018 Audi A4 Avant has been on sale for at least 52 days.

Price history

AskCar first saw this advert on 16 September 2026 at £14,495. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 8 July 2027.

It failed its MOT on 8 July 2026 (offside rear coil spring fractured or broken; nearside rear lower coil spring mounting corroded and seriously weakened; offside rear lower coil spring mounting damaged and seriously weakened) and passed 1 day later, on 9 July 2026.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge 1.6-2mm 245/40R18Y; offside front tyre worn close to legal limit/worn on edge 1.6-2mm 245/40R18Y.

Mileage at that test: 49,054 miles, which matches the advertised 49,000 miles.

Advertised mileage is about 28,300 miles lower than the median mileage of a 2018 Audi A4 Avant on AskCar.