2021 BMW 3 Series 3.0 330d MHT M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 3.0 330d MHT M Sport Auto 4WD Euro 6 5dr Step (Tec/Pro Pk) (281 bhp)
• Year: 2021
• Mileage: 78,367 miles
• Fuel: Diesel, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 281 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 78,367 miles, around 24,200 more miles than is typical for its age. The dealer is asking £23,500, which is £1,076 above the AskCar estimate of £22,424. To work out the AskCar estimate, we analyse UK dealer adverts for 6,886 BMW 3 Series cars across different ages and specifications. We first recorded this car for sale 1 day ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Sheffield BMW, based in Sheffield. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 14 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,076 (4%) over the AskCar estimate of £22,424.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 6,886 priced BMW 3 Series adverts across different ages and specifications, as of 14 November 2026.

A 2021 BMW 3 Series with the 3.0 diesel engine is typically advertised at £28,300: the median of the 148 for sale on AskCar, as of 14 November 2026.

Time on sale

AskCar first saw this 2021 BMW 3 Series advertised 1 day ago. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 457 of the 981 first advertised between 14 July 2026 and 11 October 2026.

Price history

AskCar first saw this advert on 13 November 2026 at £23,500. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 14 November 2026: valid until 31 August 2027.

It failed its MOT on 14 August 2026 (offside rear tyre has a bulge, caused by separation or partial failure of its structure) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 72,116 miles, which matches the advertised 78,367 miles.

Advertised mileage is about 24,200 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

6 other 2021 BMW 3 Series M Sport 3.0 diesel automatic estates are for sale at UK dealers, from £17,900 to £28,890, as of 14 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 3.0 diesel estate, blue. Mileage: 77,251 miles. Price: £17,900, £5,600 less than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3188b47585c6
• 2021 BMW 3 Series M Sport, 3.0 diesel estate, blue. Mileage: 70,960 miles. Price: £20,190, £3,310 less than this car. Dealer: The Donalds Group Donalds Kia Ipswich in Ipswich. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-cc4e2f5c69d6
• 2021 BMW 3 Series M Sport, 3.0 diesel estate, black. Mileage: 69,074 miles. Price: £24,942, £1,442 more than this car. Dealer: Ocean Plymouth in Plymouth. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-22df3f34c741

• The nearest: 2021 BMW 3 Series M Sport, 3.0 diesel estate, white, 32 miles from this car. Mileage: 27,127 miles. Price: £28,890, £5,390 more than this car. Dealer: Stratstone Derby BMW in Derby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-de5f2dfe675d