2021 Audi Q4 e-tron S line
Price: £18,798. Fair price: £1,047 (5%) under the AskCar estimate of £19,845, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,193 priced Audi Q4 e-tron adverts on AskCar as of 5 November 2026.
AskCar lists 1,198 used Audi Q4 e-tron from 379 UK dealerships, as of 5 November 2026.
Overview
- Make: Audi
- Model: Q4 e-tron
- Trim: S Line
- Version: 55.52kWh 35 S Line Auto RWD 5dr (C+S) (167 bhp)
- Year: 2021
- Mileage: 31,600 miles
- Fuel: Electric
- Body: Estate, 5 doors, 5 seats
- Engine: 167 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Blue
- CO2: 0 g/km
About this car
This 2021 Audi Q4 e-tron S Line has covered 31,600 miles. Priced at £18,798, it is advertised £1,047 below the AskCar estimate of £19,845. The AskCar estimate draws on 1,193 Audi Q4 e-tron adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 44 days ago. Its asking price has since fallen by £700. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is CarSupermarket.com Barnsley, based in Barnsley. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £1,047 (5%) under the AskCar estimate of £19,845.
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 1,193 priced Audi Q4 e-tron adverts across different ages and specifications, as of 5 November 2026.
Time on sale
This 2021 Audi Q4 e-tron has been on sale for at least 44 days.
Price history
AskCar first saw this advert on 22 September 2026 at £19,498. Its asking price is now £18,798, £700 less. The latest price cut was seen on 31 October 2026.
Price changes recorded:
- 22 September 2026: £19,498
- 25 September 2026: £19,298
- 23 October 2026: £18,998
- 31 October 2026: £18,798
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 18 September 2027.
It has had 4 MOTs. The latest, on 19 September 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 31,699 miles, which matches the advertised 31,600 miles.
Advertised mileage is about 200 miles lower than the median mileage of a 2021 Audi Q4 e-tron on AskCar.
Browse all Audi Q4 e-tron cars for sale · 2021 Audi Q4 e-tron price guide
More like this
- Used Audi Q4 e-tron S Line prices
- Used Audi Q4 e-tron for sale under £20,000
- Used Audi Q4 e-tron for sale near Barnsley
Photos
28 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.