2021 BMW 3 Series

3.0 M340d MHT Auto 4WD Euro 6 (s/s) 4dr (335 bhp)

£25,000

Fair price: within 8% of the typical £24,377 for this model, age and mileage, drawing on 6,759 adverts of this make and model.

Overview

Make
BMW
Model
3 Series
Version
3.0 M340d MHT Auto 4WD Euro 6 (s/s) 4dr (335 bhp)
Mileage
72,420 miles
Year
2021
Fuel type
Diesel Hybrid
Body type
Saloon
Engine
3.0 L
Gearbox
Automatic
Power
335 bhp
Seats
5
CO2
160 g/km
Colour
Blue
Doors
4
Driven wheels
Four Wheel Drive
Engine badge
M340d; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

This 2021 BMW 3 Series is advertised with 72,420 miles, approximately 17,600 above the typical mileage for its age. Our estimated market asking price is £24,377. This car is advertised at £25,000, which is £623 above that figure. To estimate its market asking price, we analyse UK dealer adverts for 6,759 BMW 3 Series cars across different ages and specifications. Since we first spotted the advert 138 days ago, the asking price has dropped by £3,000. The recorded MOT expired on 1 August 2026, so ask the dealer whether it has been renewed. Our comparison with the latest MOT reading has not flagged a mileage discrepancy. The seller is Sytner Sheffield BMW, based in Sheffield.

Stock data from 26 October 2026.

How we estimate prices and check cars

Price history

First seen on 11 June 2026, 138 days ago. Advert duration calculated on 27 October 2026. Net asking-price reduction: £3,000 from the first recorded £28,000. 7 price reductions recorded, the latest observed on 10 October 2026.

Recorded asking prices
Date observedAsking price
7 July 2026£28,000
25 July 2026£27,820
26 July 2026£27,820
20 August 2026£27,250
2 September 2026£26,750
11 September 2026£26,500
22 September 2026£26,000
2 October 2026£25,250
10 October 2026£25,000
26 October 2026£25,000

Price and mileage comparison

Estimated market asking price: £24,377. The asking price is £623 above 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 6,759 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 17,600 miles higher than typical for a 2021 BMW 3 Series.

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 1 August 2026. 64,976 miles at the last test.

52 other cars with the same year, trim, gearbox and fuel are for sale from £19,995 to £36,500.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£19,99566,457 miles
£21,95095,000 miles
£22,65079,227 miles
£22,99599,000 miles
£22,99582,819 miles

These cars have covered 8,500–99,000 miles, compared with 72,420 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 3 Series cars for sale · 2021 BMW 3 Series price guide

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