2021 Audi A5 2.0 TDI S Line

Overview

• Make: Audi
• Model: A5
• Trim: S Line
• Version: 2.0 TDI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (161 bhp)
• Year: 2021
• Mileage: 95,000 miles
• Fuel: Diesel, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 161 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A5 S Line is advertised with 95,000 miles, approximately 44,000 above the typical mileage for its age. Priced at £19,495, it is advertised £4,509 above the AskCar estimate of £14,986. To work out the AskCar estimate, we analyse UK dealer adverts for 1,830 Audi A5 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 154 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at MC Autosales in Magherafelt. 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

Above the going rate: £4,509 (30%) over the AskCar estimate of £14,986.

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 1,830 priced Audi A5 adverts across different ages and specifications, as of 2 November 2026.

A 2021 Audi A5 with the 2.0 diesel engine is typically advertised at £19,700: the median of the 119 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2021 Audi A5 has been on sale for at least 154 days. About half of 2021 Audi A5 cars are gone from sale within a month of being advertised: 84 of the 157 first advertised between 8 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 1 June 2026 at £19,495. 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 2 November 2026: valid until 13 January 2027.

It has had 3 MOTs. The latest, on 14 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 95,234 miles, which matches the advertised 95,000 miles.

Advertised mileage is about 44,000 miles higher than the median mileage of a 2021 Audi A5 on AskCar.

Similar cars

30 other 2021 Audi A5 S Line 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £13,995 to £22,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A5 S Line, 2.0 diesel hatchback, white. Mileage: 95,052 miles. Price: £15,791, £3,704 less than this car. Dealer: Cardiff Trade Sales in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a5-2021-63c94aa37289
• 2021 Audi A5 S Line, 2.0 diesel hatchback, black. Mileage: 95,115 miles. Price: £15,850, £3,645 less than this car. Dealer: LIV Motors in Prestwich. AskCar page: https://askcar.co.uk/car/audi-a5-2021-a30d3b58600e
• 2021 Audi A5 S Line, 2.0 diesel hatchback, blue. Mileage: 82,210 miles. Price: £16,450, £3,045 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a5-2021-9c6f94bffb32

• The nearest: 2021 Audi A5 S Line, 2.0 diesel hatchback, white, under a mile from this car. Mileage: 72,000 miles. Price: £20,495, £1,000 more than this car. Dealer: MC Autosales in Magherafelt. AskCar page: https://askcar.co.uk/car/audi-a5-2021-acefeb031022