2021 BMW X3
3.0 M40d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
£30,995
Good value: £3,036 under the typical £34,031 for this model, age and mileage, drawing on 3,009 adverts of this make and model.
Overview
- Make
- BMW
- Model
- X3
- Trim
- M SPORT
- Version
- 3.0 M40d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
- Mileage
- 31,209 miles
- Year
- 2021
- Fuel type
- Diesel Hybrid
- Body type
- SUV
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 335 bhp
- Seats
- 5
- CO2
- 184 g/km
- Colour
- Black
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Engine badge
- M40d; MHT
- Hybrid type
- Mild hybrid
- Emissions standard
- Euro 6
About this car
This 2021 BMW X3 M Sport is advertised with 31,209 miles, approximately 18,300 below the typical mileage for its age. Our estimated market asking price is £34,031. This car is advertised at £30,995, which is £3,036 below that figure. Our estimate draws on 3,009 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 147 days ago, and its asking price has since fallen by £2,000. Our records show an MOT expiry date of 27 July 2026, which has passed. Ask the dealer for an update. Our comparison with the latest MOT reading has not flagged a mileage discrepancy. It is advertised by Ballyrobert Mallusk in Newtownabbey.
Stock data from 21 October 2026.
Price history
First seen on 28 May 2026, 147 days ago. Advert duration calculated on 22 October 2026. Net asking-price reduction: £2,000 from the first recorded £32,995. 5 price reductions recorded, the latest observed on 6 October 2026.
| Date observed | Asking price |
|---|---|
| 28 May 2026 | £32,995 |
| 6 June 2026 | £32,750 |
| 2 July 2026 | £32,495 |
| 7 July 2026 | £32,495 |
| 5 August 2026 | £31,995 |
| 5 September 2026 | £31,495 |
| 6 October 2026 | £30,995 |
| 21 October 2026 | £30,995 |
Price and mileage comparison
Estimated market asking price: £34,031. The asking price is £3,036 below this estimate.
The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.
The pricing calculation includes 3,009 adverts of this make and model across different ages and specifications.
Advertised mileage is approximately 18,300 miles lower than typical for a 2021 BMW X3.
The advertised mileage is consistent with the last MOT reading.
The recorded MOT has expired; ask the dealer for an up-to-date MOT.
MOT
MOT valid until 27 July 2026. 28,235 miles at the last test.
109 other cars with the same year, trim, gearbox and fuel are for sale from £16,295 to £36,500.
| Asking price | Mileage |
|---|---|
| £16,295 | 114,230 miles |
| £17,697 | 100,743 miles |
| £18,750 | 85,302 miles |
| £19,350 | 85,245 miles |
| £20,400 | 87,665 miles |
These cars have covered 12,230–114,230 miles, compared with 31,209 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.
Browse all BMW X3 cars for sale · 2021 BMW X3 price guide
Similar cars for less
- 2022 BMW X3, 29,204 miles, £26,495, £6,867 under typical, Farnham
- 2023 BMW X3, 27,133 miles, £25,990, £4,364 under typical, Doncaster
- 2023 BMW X3, 18,126 miles, £30,580, £4,954 under typical, Leeds
Dealer
Ballyrobert Mallusk, Newtownabbey. Across the dealer network: 2 branches, 284 cars for sale.
Dealer postcode: BT36 4XS.
Dealer opening hours
- Monday
- 09:00-18:00
- Tuesday
- 09:00-18:00
- Wednesday
- 09:00-18:00
- Thursday
- 09:00-18:00
- Friday
- 09:00-18:00
- Saturday
- 09:00-13:00
- Sunday
- Closed
