2021 BMW 3 Series

3.0 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)

£30,644

Fair price: within 8% of the typical £31,074 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 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
Mileage
50,609 miles
Year
2021
Fuel type
Petrol Hybrid
Body type
Saloon
Engine
3.0 L
Gearbox
Automatic
Power
369 bhp
Seats
5
CO2
176 g/km
Colour
Blue
Doors
4
Driven wheels
Four Wheel Drive
Engine badge
M340i; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

With 50,609 miles on the clock, this 2021 BMW 3 Series has done roughly 4,100 fewer miles than a typical 2021 BMW 3 Series. Its asking price of £30,644 is £430 below our estimate of £31,074. The estimate uses 6,886 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 24 days ago. Its asking price has since fallen by £505. The latest MOT record shows an expiry date of 1 August 2027, with the advertised mileage consistent with the recorded reading. You can find this car at Prestige Cars Kent in Orpington.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 29 September 2026, 24 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £505 from the first recorded £31,149. 3 price reductions recorded, the latest observed on 20 October 2026.

Recorded asking prices
Date observedAsking price
29 September 2026£31,149
8 October 2026£31,021
15 October 2026£30,830
20 October 2026£30,644
22 October 2026£30,644

Price and mileage comparison

Estimated market asking price: £31,074. The asking price is £430 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 6,886 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 4,100 miles lower than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 1 August 2027. 49,015 miles at the last test.

58 other cars with the same year, trim, gearbox and fuel are for sale from £25,475 to £45,000.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£25,47589,162 miles
£25,99037,000 miles
£25,99584,000 miles
£26,44963,729 miles
£26,49573,000 miles

These cars have covered 6,593–89,162 miles, compared with 50,609 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