2021 BMW 3 Series

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

£29,750

Above the going rate: £4,000 over the typical £25,750 for this model, age and mileage, drawing on 6,886 adverts of this make and model.

Overview

Make
BMW
Model
3 Series
Version
3.0 M340d MHT Auto 4WD Euro 6 (s/s) (335 bhp)
Mileage
85,671 miles
Year
2021
Fuel type
Diesel Hybrid
Engine
3.0 L
Gearbox
Automatic
Power
335 bhp
Seats
5
CO2
165 g/km
Colour
Blue
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 has covered 85,671 miles, around 31,000 more than typical for its age. Its asking price of £29,750 is £4,000 above our estimate of £25,750. To estimate its market asking price, we analyse UK dealer adverts for 6,886 BMW 3 Series cars across different ages and specifications. We first recorded this advert 70 days ago, and its asking price has since fallen by £750. That history is worth bearing in mind when speaking to the dealer. MOT records show an expiry date of 25 November 2026, and the latest recorded mileage is consistent with the advert. The seller is MINI UK at Listers Boston, based in Boston.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 14 August 2026, 70 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £750 from the first recorded £30,500. 2 price reductions recorded, the latest observed on 4 October 2026.

Recorded asking prices
Date observedAsking price
14 August 2026£30,500
24 September 2026£30,000
4 October 2026£29,750
22 October 2026£29,750

Price and mileage comparison

Estimated market asking price: £25,750. The asking price is £4,000 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 6,886 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 31,000 miles higher than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 25 November 2026. 70,506 miles at the last test.

55 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
£22,49094,000 miles
£22,95079,227 miles
£22,99599,000 miles
£23,99582,819 miles

These cars have covered 8,500–99,000 miles, compared with 85,671 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

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos

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