2018 Audi A6 Avant 3.0 TDI V6 S Line

Overview

• Make: Audi
• Model: A6 Avant
• Trim: S Line
• Version: 3.0 TDI V6 50 S Line Tiptronic 4WD Euro 6 (s/s) 5dr (282 bhp)
• Year: 2018
• Mileage: 159,000 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 282 bhp
• Gearbox: Automatic (Tiptronic)
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A6 Avant S Line has covered 159,000 miles. Priced at £13,625, it is advertised £1,995 above the AskCar estimate of £11,630. The AskCar estimate uses 785 UK dealer adverts for the Audi A6 Avant, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 1 day ago. Ask the dealer why the advert shows fewer miles than the 159,610 recorded at the latest MOT. Its MOT is recorded as valid until 21 October 2027. The seller is German Technik, based in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £1,995 (17%) over the AskCar estimate of £11,630.

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 785 priced Audi A6 Avant adverts across different ages and specifications, as of 5 November 2026.

A 2018 Audi A6 Avant with the 3.0 diesel engine is typically advertised at £18,600: the median of the 11 for sale on AskCar, as of 5 November 2026.

Time on sale

AskCar first saw this 2018 Audi A6 Avant advertised 1 day ago. About half of 2018 Audi A6 Avant cars are gone from sale within a month of being advertised: 33 of the 64 first advertised between 13 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £13,625. 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 5 November 2026: valid until 21 October 2027.

It has had 8 MOTs. The latest, on 16 October 2026, passed.

Advisories at the latest test: front windscreen damaged but not adversely affecting driver's view.

Mileage at that test: 159,610 miles. The advert says 159,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 75,700 miles higher than the median mileage of a 2018 Audi A6 Avant on AskCar.

Similar cars

5 other 2018 Audi A6 Avant S Line 3.0 diesel automatic estates are for sale at UK dealers, from £16,490 to £23,490, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A6 Avant S Line, 3.0 diesel estate, black. Mileage: 105,007 miles. Price: £16,490, £2,865 more than this car. Dealer: Group 1 Assured Ipswich in Ipswich. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-c354b8f60100
• 2018 Audi A6 Avant S Line, 3.0 diesel estate, black. Mileage: 96,000 miles. Price: £18,890, £5,265 more than this car. Dealer: BM Vehicles in Ware. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-2b14c053512d
• 2018 Audi A6 Avant S Line, 3.0 diesel estate, black. Mileage: 87,865 miles. Price: £16,995, £3,370 more than this car. Dealer: Sherwood Car Centre in Nottingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-ed774443d6af

• The nearest: 2018 Audi A6 Avant S Line, 3.0 diesel estate, blue, 3 miles from this car. Mileage: 58,050 miles. Price: £20,700, £7,075 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2018-ee3a3c1edb9e