2021 Audi Q4 e-tron S line

Overview

• Make: Audi
• Model: Q4 e-tron
• Trim: S Line
• Version: 35 S Line Auto RWD 5dr (167 bhp)
• Year: 2021
• Mileage: 39,998 miles
• Fuel: Electric
• Body: SUV, 5 doors, 5 seats
• Engine: 167 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 0 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 39,998 miles on the clock, this 2021 Audi Q4 e-tron S Line has done roughly 6,700 more miles than a typical 2021 Audi Q4 e-tron. Priced at £17,990, it is advertised £823 below the AskCar estimate of £18,813. To work out the AskCar estimate, we analyse UK dealer adverts for 1,137 Audi Q4 e-tron cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 64 days, and its asking price has been cut by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Bella Cars, based in Huddersfield. 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: £823 (4%) under the AskCar estimate of £18,813.

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 1,137 priced Audi Q4 e-tron adverts across different ages and specifications, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2021 Audi Q4 e-tron has been on sale for at least 64 days, and its asking price has been cut by £500. About 6 in 10 of 2021 Audi Q4 e-tron cars are gone from sale within a month of being advertised: 61 of the 109 first advertised between 11 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 30 August 2026 at £18,490. Its asking price is now £17,990, £500 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 30 August 2026: £18,490
• 24 October 2026: £17,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 8 June 2027.

It has had 3 MOTs. The latest, on 9 June 2026, passed.

Advisories at the latest test: front brake disc worn, pitted or scored, but not seriously weakened both sides; nearside rear child seat fitted not allowing full inspection of adult belt.

Mileage at that test: 38,696 miles, which matches the advertised 39,998 miles.

Advertised mileage is about 6,700 miles higher than the median mileage of a 2021 Audi Q4 e-tron on AskCar.

Similar cars

21 other 2021 Audi Q4 e-tron S Line automatic SUVs are for sale at UK dealers, from £2,000 to £23,388, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi Q4 e-tron S Line, SUV, black. Mileage: 40,488 miles. Price: £18,599, £609 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-8e8ff0074bb3
• 2021 Audi Q4 e-tron S Line, SUV, black. Mileage: 37,500 miles. Price: £21,545, £3,555 more than this car. Dealer: Drift Bridge Audi Approved - Epsom in Epsom. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-3d1a1e42410e
• 2021 Audi Q4 e-tron S Line, SUV, white. Mileage: 35,000 miles. Price: £19,990, £2,000 more than this car. Dealer: Audi Saab in Liverpool. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-45faf544cbb9

• The nearest: 2021 Audi Q4 e-tron S Line, SUV, silver, 55 miles from this car. Mileage: 22,000 miles. Price: £20,950, £2,960 more than this car. Dealer: Autotech Cars in Nottingham. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-ba873c033f8b