2021 BMW 3 Series

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

£28,980

Fair price: within 8% of the typical £27,833 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) 4dr (335 bhp)
Mileage: 54,500 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: Black
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 54,500 miles on the clock. Its asking price of £28,980 is £1,147 above our estimate of £27,833. The estimate uses 6,886 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 78 days. The latest MOT record shows an expiry date of 27 January 2027, with the advertised mileage consistent with the recorded reading. You can find this car at Tier One Automotive in Kings Langley.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 6 August 2026, 78 days ago. Advert duration calculated on 23 October 2026.

Recorded asking prices
Date observed	Asking price
6 August 2026	£28,980
7 August 2026	£28,980
22 October 2026	£28,980

Price and mileage comparison

Estimated market asking price: £27,833. The asking price is £1,147 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 200 miles lower than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 27 January 2027. 45,876 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 price	Mileage
£19,995	66,457 miles
£22,490	94,000 miles
£22,950	79,227 miles
£22,995	99,000 miles
£23,995	82,819 miles

These cars have covered 8,500–99,000 miles, compared with 54,500 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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