2020 Audi A4 Avant 2.0 TDI S Line

Overview

• Make: Audi
• Model: A4 Avant
• Trim: S Line
• Version: 2.0 TDI 30 S Line S tronic FWD Euro 6 (s/s) 5dr (134 bhp)
• Year: 2020
• Mileage: 124,000 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 134 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 113 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A4 Avant S Line is advertised with 124,000 miles, approximately 59,000 above the typical mileage for its age. The AskCar estimate for this car is £10,915. It is priced at £11,250, which is £335 above that estimate. The AskCar estimate uses 1,202 UK dealer adverts for the Audi A4 Avant, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 89 days ago. Its asking price has since fallen by £2,745. Our latest MOT record expired on 26 September 2026. Check the current position with the dealer. Its advertised mileage matches the government's MOT record. The seller is Gloucester Motor Group, based in Gloucester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £335 (3%) over the AskCar estimate of £10,915.

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 1,202 priced Audi A4 Avant adverts across different ages and specifications, as of 2 November 2026.

A 2020 Audi A4 Avant with the 2.0 diesel engine is typically advertised at £17,000: the median of the 85 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 Audi A4 Avant has been on sale for at least 89 days.

Price history

AskCar first saw this advert on 5 August 2026 at £13,995. Its asking price is now £11,250, £2,745 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 5 August 2026: £13,995
• 29 August 2026: £12,995
• 4 September 2026: £11,995
• 5 October 2026: £11,695
• 22 October 2026: £11,495
• 29 October 2026: £11,250

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 26 September 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 26 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 112,500 miles, which matches the advertised 124,000 miles.

Advertised mileage is about 59,000 miles higher than the median mileage of a 2020 Audi A4 Avant on AskCar.

Similar cars

9 other 2020 Audi A4 Avant S Line 2.0 diesel automatic estates are for sale at UK dealers, from £13,870 to £19,199, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A4 Avant S Line, 2.0 diesel estate, blue. Mileage: 101,800 miles. Price: £13,870, £2,620 more than this car. Dealer: BM Car Sales in Great Yarmouth. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2020-b16d647e16e9
• 2020 Audi A4 Avant S Line, 2.0 diesel estate, white. Mileage: 87,475 miles. Price: £13,987, £2,737 more than this car. Dealer: Corus Automotives in Retford. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2020-436f0d3d65da
• 2020 Audi A4 Avant S Line, 2.0 diesel estate, grey. Mileage: 71,800 miles. Price: £15,650, £4,400 more than this car. Dealer: David Ascott Motors in Greenford. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2020-a1a5567ce922

• The nearest: 2020 Audi A4 Avant S Line, 2.0 diesel estate, white, 50 miles from this car. Mileage: 71,780 miles. Price: £16,740, £5,490 more than this car. Dealer: Steven Eagell Toyota Wolverhampton in Wolverhampton. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2020-a5841b482df9