2021 BMW 3 Series

3.0 M340d MHT Touring Auto 4WD Euro 6 (s/s) 5dr (335 bhp)

£33,600

Good value: £3,004 under the typical £36,604 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 Touring Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
Mileage
27,619 miles
Year
2021
Fuel type
Diesel Hybrid
Body type
Estate
Engine
3.0 L
Gearbox
Automatic
Power
335 bhp
Seats
5
CO2
165 g/km
Colour
White
Doors
5
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 27,619 miles, approximately 27,100 below the typical mileage for its age. Our estimated market asking price is £36,604. This car is advertised at £33,600, which is £3,004 below that figure. 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 53 days ago, the asking price has dropped by £4,100. MOT records show an expiry date of 28 January 2027, and the latest recorded mileage is consistent with the advert. The seller is Marshall BYD Swindon, based in Swindon.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 1 September 2026, 53 days ago. Advert duration calculated on 24 October 2026. Net asking-price reduction: £4,100 from the first recorded £37,700. 7 price reductions recorded, the latest observed on 23 October 2026.

Recorded asking prices
Date observedAsking price
1 September 2026£37,700
11 September 2026£37,300
17 September 2026£36,600
25 September 2026£35,800
2 October 2026£35,200
9 October 2026£34,500
16 October 2026£33,800
23 October 2026£33,600

Price and mileage comparison

Estimated market asking price: £36,604. The asking price is £3,004 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 6,724 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 27,100 miles lower than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 28 January 2027. 19,779 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
£22,49094,000 miles
£22,95079,227 miles
£22,99599,000 miles
£22,99582,819 miles

These cars have covered 8,500–99,000 miles, compared with 27,619 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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