2021 Audi A5 2.0 TDI S Line

Overview

• Make: Audi
• Model: A5
• Trim: S Line
• Version: 2.0 TDI S Line S tronic FWD Euro 6 2dr (160 bhp)
• Year: 2021
• Mileage: 41,825 miles
• Fuel: Diesel, mild hybrid
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 160 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 133 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 41,825 miles on the clock, this 2021 Audi A5 S Line has done roughly 9,200 fewer miles than a typical 2021 Audi A5. The AskCar estimate for this car is £20,455. It is priced at £18,995, which is £1,460 below that estimate. The AskCar estimate uses 1,830 UK dealer adverts for the Audi A5, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 108 days ago. Its asking price has since fallen by £1,500. The latest recorded MOT expiry date is 6 July 2026, which has passed. Confirm its status with the dealer. Its advertised mileage matches the government's MOT record. It is for sale at Sinclair Direct in Bridgend. 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: £1,460 (7%) under the AskCar estimate of £20,455.

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

This 2021 Audi A5 has been on sale for at least 108 days.

Price history

AskCar first saw this advert on 17 July 2026 at £20,495. Its asking price is now £18,995, £1,500 less. The latest price cut was seen on 10 October 2026.

Price changes recorded:

• 17 July 2026: £20,495
• 2 September 2026: £19,995
• 10 October 2026: £18,995

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 6 July 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 7 July 2025, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge; rear tyre slightly damaged/cracking or perishing both.

Mileage at that test: 33,990 miles, which matches the advertised 41,825 miles.

Advertised mileage is about 9,200 miles lower than the median mileage of a 2021 Audi A5 on AskCar.

Similar cars

11 other 2021 Audi A5 S Line 2.0 diesel automatic coupes are for sale at UK dealers, from £16,500 to £22,299, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A5 S Line, 2.0 diesel coupe, grey. Mileage: 43,176 miles. Price: £18,999, the same price as this car. Dealer: Bridgend Motor Group in Morley. AskCar page: https://askcar.co.uk/car/audi-a5-2021-38e8e15d10aa
• 2021 Audi A5 S Line, 2.0 diesel coupe, white. Mileage: 40,000 miles. Price: £19,750, £755 more than this car. Dealer: Torque Point in Leighton Buzzard. AskCar page: https://askcar.co.uk/car/audi-a5-2021-e6fb768f4a4e
• 2021 Audi A5 S Line, 2.0 diesel coupe, grey. Mileage: 47,200 miles. Price: £18,490, £505 less than this car. Dealer: Rovia Cars in Waltham Cross. AskCar page: https://askcar.co.uk/car/audi-a5-2021-1e11f52ed388

• The nearest: 2021 Audi A5 S Line, 2.0 diesel coupe, blue, 87 miles from this car. Mileage: 80,668 miles. Price: £16,500, £2,495 less than this car. Dealer: Yeovil Audi in Poole. AskCar page: https://askcar.co.uk/car/audi-a5-2021-953c369a5eea