2021 BMW 3 Series

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

£22,490

Above the going rate: £1,728 over the typical £20,762 for this model, age and mileage, drawing on 6,724 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
94,000 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 has covered 94,000 miles, around 39,300 more than typical for its age. The dealer is asking £22,490, which is £1,728 above our market estimate of £20,762. We use UK dealer asking prices, including 6,724 BMW 3 Series listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 120 days ago, the asking price has dropped by £500. It may give you a starting point for a conversation about price. Its MOT is recorded as valid until 2 January 2027. The advertised mileage is consistent with the latest MOT reading. It is for sale at Billington Motor Group in Burnley.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 26 June 2026, 120 days ago. Advert duration calculated on 24 October 2026. Net asking-price reduction: £500 from the first recorded £22,990. 1 price reduction recorded, the latest observed on 16 October 2026.

Recorded asking prices
Date observedAsking price
26 June 2026£22,990
7 July 2026£22,990
16 October 2026£22,490
23 October 2026£22,490

Price and mileage comparison

Estimated market asking price: £20,762. The asking price is £1,728 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 6,724 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 39,300 miles higher than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 2 January 2027. 76,932 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
£22,95079,227 miles
£22,99599,000 miles
£22,99582,819 miles
£23,99570,870 miles

These cars have covered 8,500–99,000 miles, compared with 94,000 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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