2023 BMW 3 Series

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

£39,400

Fair price: within 8% of the typical £41,930 for this model, age and mileage, drawing on 6,764 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: 18,421 miles
Year: 2023
Fuel type: Petrol Hybrid
Body type: Saloon
Engine: 3.0 L
Gearbox: Automatic
Power: 369 bhp
Seats: 5
CO2: 182 g/km
Colour: Grey
Doors: 4
Driven wheels: Four Wheel Drive
Engine badge: M340i; MHT
Hybrid type: Mild hybrid
Emissions standard: Euro 6

About this car

With 18,421 miles on the clock, this 2023 BMW 3 Series has done roughly 15,200 fewer miles than a typical 2023 BMW 3 Series. The dealer is asking £39,400, which is £2,530 below our market estimate of £41,930. We use UK dealer asking prices, including 6,764 BMW 3 Series listings, and account for the car’s age, mileage and specification. It first appeared in our advert records 20 days ago. MOT records show an expiry date of 13 March 2027, and the latest recorded mileage is consistent with the advert. The seller is Sytner Stevenage BMW, based in Stevenage.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 30 September 2026, 20 days ago. Advert duration calculated on 20 October 2026.

Recorded asking prices
Date observed	Asking price
30 September 2026	£39,400
19 October 2026	£39,400

Price and mileage comparison

Estimated market asking price: £41,930. The asking price is £2,530 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 6,764 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 15,200 miles lower than typical for a 2023 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 13 March 2027. 16,485 miles at the last test.

26 other cars with the same year, trim, gearbox and fuel are for sale from £34,493 to £47,995.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£34,493	73,076 miles
£36,270	41,096 miles
£37,337	31,984 miles
£37,498	33,849 miles
£37,500	33,170 miles

These cars have covered 14,158–73,076 miles, compared with 18,421 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 · 2023 BMW 3 Series price guide

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Dealer

Sytner Stevenage BMW, Stevenage. Across the dealer network: 140 branches, 10,310 cars for sale.

Dealer postcode: SG1 2BE.