2021 BMW 3 Series

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

£26,989

Fair price: within 8% of the typical £27,082 for this model, age and mileage, drawing on 6,811 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
59,444 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
Grey
Doors
4
Driven wheels
Four Wheel Drive
Engine badge
M340d; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

At 59,444 miles, this 2021 BMW 3 Series has covered about 4,900 more miles than other 2021 BMW 3 Series cars. The dealer is asking £26,989, which is £93 below our market estimate of £27,082. To estimate its market asking price, we analyse UK dealer adverts for 6,811 BMW 3 Series cars across different ages and specifications. This car was first seen in our listings data 6 days ago. MOT records show an expiry date of 8 October 2027, and the latest recorded mileage is consistent with the advert. It is advertised by The Hertford Car Company in Bayford.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 16 October 2026, 6 days ago. Advert duration calculated on 22 October 2026.

Recorded asking prices
Date observedAsking price
16 October 2026£26,989
20 October 2026£26,989

Price and mileage comparison

Estimated market asking price: £27,082. The asking price is £93 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 6,811 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 4,900 miles higher than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 8 October 2027. 59,429 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 59,444 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

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Dealer

The Hertford Car Company, Bayford. Across the dealer network: 122 cars for sale.

Dealer postcode: SG13 8QA.

Dealer opening hours

Monday
08:00-18:00
Tuesday
08:00-17:00
Wednesday
08:00-18:00
Thursday
08:00-18:00
Friday
08:00-18:00
Saturday
09:00-16:00
Sunday
09:00-15:00

Vehicle photos