2021 BMW 3 Series

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

£31,750

Fair price: within 8% of the typical £31,317 for this model, age and mileage, drawing on 6,801 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
33,764 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
Grey
Doors
4
Driven wheels
Four Wheel Drive
Engine badge
M340d; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

With 33,764 miles on the clock, this 2021 BMW 3 Series has done roughly 20,900 fewer miles than a typical 2021 BMW 3 Series. Its asking price of £31,750 is £433 above our estimate of £31,317. The estimate uses 6,801 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 43 days ago, and its asking price has since fallen by £1,200. Its recorded MOT is valid until 20 November 2026, and its advertised mileage is consistent with the latest MOT reading. The seller is MINI UK at Sandal Huddersfield, based in Huddersfield.

Stock data from 27 October 2026.

How we estimate prices and check cars

Price history

First seen on 15 September 2026, 43 days ago. Advert duration calculated on 28 October 2026. Net asking-price reduction: £1,200 from the first recorded £32,950. 3 price reductions recorded, the latest observed on 22 October 2026.

Recorded asking prices
Date observedAsking price
15 September 2026£32,950
1 October 2026£32,500
15 October 2026£31,950
22 October 2026£31,750
27 October 2026£31,750

Price and mileage comparison

Estimated market asking price: £31,317. The asking price is £433 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 6,801 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 20,900 miles lower than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 20 November 2026. 29,006 miles at the last test.

53 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 33,764 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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Vehicle photos

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