BMW M340 Valuation: 368 used car listings analysed

Market overviewFebruary Market Guide: A used BMW M340 in the UK typically costs between £27,499 and £58,999. The most sought-after versions of the BMW M340 are M Sport, Comfort Edition, Shadowline. Regarding durability, we see high-mileage examples reaching up to 73,255 miles. Currently, 109 BMW M340 listings are priced below the UK market average (based on 42 websites)

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A bit pricey

Expensive

1 / 3

Used (2022) BMW M340 M Sport 374 HP | Super price

- 3 Series i xDrive MHT 4dr Step

  • 2022
  • 43,698 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 374 HP (275 kW)
  • mpg7.7
  • CO2176 g CO2/km comb.
  • Details
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Super price

£32,510
£31,276
Verified Marketplace
LE127AT Sorrell, Leicestershire
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-3%
1 / 4

Used (2020) BMW M340 M Sport 374 HP | Good price

- 3 Series i xDrive 4dr Step

  • 2020
  • 65,100 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 374 HP (275 kW)
  • mpg8.0
  • CO2185 g CO2/km comb.
  • Details
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Good price

£26,000
£26,888
Verified Marketplace
HA40JA Ruislip, London
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New (2025) BMW M340 M Sport 374 HP | Good price

- 3 Series Touring i xDrive MHT

  • 2025
  • 0 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 374 HP (275 kW)
  • mpg8.0
  • CO2182 g CO2/km comb.
  • Details
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Good price

£63,630
Verified Marketplace
S419BH Nottingham, Derbyshire
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-1%
1 / 3

Used (2025) BMW M340 M Sport 374 HP | Super price

- 3 Series i xDrive MHT 4dr Step

  • 2025
  • 24,896 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 374 HP (275 kW)
  • mpg7.8
  • CO2177 g CO2/km comb.
  • Details
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Super price

£39,999
£40,499
Verified Marketplace
DE248PU Derby, Derbyshire
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1 / 1

Used (2022) BMW M340 340 HP | Good price

- 3 Series xDrive MHT 4dr Step

  • 2022
  • 61,417 miles
  • 3.0L Diesel
  • Sedan
  • Automatic
  • 340 HP (250 kW)
  • mpg6.1
  • CO2160 g CO2/km comb.
  • Details
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Good price

£27,490
Verified Marketplace
CT27PX, Kent
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1 / 4

Used (2025) BMW M340 M Sport 374 HP | Good price

- 3 Series i xDrive MHT 4dr Step

  • 2025
  • 20,123 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 374 HP (275 kW)
  • mpg7.8
  • CO2177 g CO2/km comb.
  • Details
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Good price

£42,599
£42,999
Verified Marketplace
NN156XY Derby, Northamptonshire
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-2%
1 / 4

Used (2021) BMW M340 Performance 340 HP | Good price

3 SeriesxDrive MHT 4dr Step

  • 2021
  • 54,947 miles
  • Trim levelPerformance
  • 3.0L Diesel
  • Sedan
  • Automatic
  • 340 HP (250 kW)
  • mpg46.3
  • CO2160 g CO2/km comb.
  • Details
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Good price

£28,290
£28,990
Verified Marketplace
DL12LD, Durham
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-4%
1 / 4

Used (2021) BMW M340 M Sport 340 HP | Good price

3 Series 2021 | 3.0MHT Auto xDrive

  • 2021
  • 73,255 miles
  • Trim levelM Sport
  • 3.0L Diesel
  • Sedan
  • Automatic
  • 340 HP (250 kW)
  • mpg6.1
  • CO2160 g CO2/km comb.
  • Details
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Good price

£24,200
£25,300
Verified Marketplace
WS111SL, Staffordshire
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1 / 4

Used (2022) BMW M340 M Sport 340 HP | Super price

- 3 Series xDrive MHT 4dr Step

  • 2022
  • 55,539 miles
  • Trim levelM Sport
  • 3.0L Diesel
  • Sedan
  • Automatic
  • 340 HP (250 kW)
  • mpg6.1
  • CO2160 g CO2/km comb.
  • Details
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Super price

£29,670
£29,590
Verified Marketplace
CF118UT
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New
1 / 4

Used (2023) BMW M340 M Sport 368 HP | Super price

3 Series i xDrive MHT 4dr Step

  • 2023
  • 38,703 miles
  • Trim levelM Sport
  • 3.0L Hybrid
  • Sedan
  • Automatic
  • 368 HP (270 kW)
  • Details
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Super price

£37,496
Marketplace
Delivered to you
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-1%
1 / 4

Used (2021) BMW M340 Comfort Edition 340 HP | Good price

3 Series 3.0 MHT Saloon 4dr Diesel

  • 2021
  • 59,251 miles
  • Trim levelComfort Edition
  • 3.0L Hybrid
  • Sedan
  • Automatic
  • 340 HP (250 kW)
  • mpg46.3
  • Details
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Good price

£27,950
£28,450
Marketplace
BL6 6DT Horwich, Manchester
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1 / 4

Used (2020) BMW M340 M Sport | Good price

3 Series i xDrive 4dr Step

  • 2020
  • 50,150 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • Details
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Good price

£29,750
£29,995
Marketplace
OX7 5TB Chipping Norton, Oxfordshire
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-1%
1 / 4

Used (2023) BMW M340 Shadowline 335 HP | Super price

3 Series xDrive Saloon 3.0 4dr

  • 2023
  • 23,918 miles
  • Trim levelShadowline
  • 3.0L Diesel
  • Sedan
  • Automatic
  • 335 HP (246 kW)
  • mpg46.3
  • CO2160 g CO2/km comb.
  • Details
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Super price

£39,444
£39,950
Marketplace
HU9 1TQ Hull, East Yorkshire
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1 / 4

Used (2022) BMW M340 M Sport 368 HP | Good price

3 Series i xDrive MHT 4dr Step

  • 2022
  • 24,214 miles
  • Trim levelM Sport
  • 3.0L Hybrid
  • Sedan
  • Automatic
  • 368 HP (270 kW)
  • Details
autouncle-certified

Good price

£37,950
£37,998
Marketplace
WC1E 7DP London, London
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-19%
1 / 4

Used (2023) BMW M340 M Sport 374 HP | Good price

3 Series i xDrive MHT 4dr Step

  • 2023
  • 38,703 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 374 HP (275 kW)
  • mpg35.0
  • CO2182 g CO2/km comb.
  • Details
autouncle-certified

Good price

£37,496
£46,695
Marketplace
BA22 8RT Yeovil, Somerset
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-1%
1 / 4

Used (2023) BMW M340 M Sport 369 HP | Super price

3 Series i xDrive Saloon 3.0

  • 2023
  • 25,786 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 369 HP (271 kW)
  • mpg34.9
  • CO2182 g CO2/km comb.
  • Details
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Super price

£39,111
£39,560
Marketplace
BR1 2NE Bromley, London
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1 / 1

Used (2025) BMW M340 M Sport 369 HP | Good price

3 Series i xDrive Saloon 3.0

  • 2025
  • 6,650 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 369 HP (271 kW)
  • mpg34.9
  • CO2182 g CO2/km comb.
  • Details
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Good price

£50,995
Marketplace
BT12 6HU Belfast
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-3%
1 / 4

Used (2021) BMW M340 Impressive 340 HP | Super price

3 Series xDrive MHT 4dr Step

  • 2021
  • 30,058 miles
  • Trim levelImpressive
  • 3.0L Diesel
  • Sedan
  • Automatic
  • 340 HP (250 kW)
  • mpg46.3
  • Details
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Super price

£30,984
£31,984
Marketplace
AL2 3NY St Albans, Hertfordshire
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New
1 / 2

Used (2021) BMW M340 M Performance | Good price

3 Series xDrive MHT 4dr Step

  • 2021
  • 35,445 miles
  • Trim levelM Performance
  • 3.0L Diesel
  • Sedan
  • Automatic
  • Details
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Good price

£31,995
Marketplace
TF1 5JD Telford, Shropshire
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-1%
1 / 4

Used (2024) BMW M340 M Sport 369 HP | Super price

3 Series i xDrive Saloon 3.0

  • 2024
  • 9,240 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 369 HP (271 kW)
  • mpg34.9
  • CO2183 g CO2/km comb.
  • Details
autouncle-certified

Super price

£46,350
£46,950
Marketplace
OX2 8JP Oxford, Oxfordshire
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-8%

Used (2022) BMW M340 Comfort Edition 335 HP | Super price

3 SeriesxDrive Saloon 3.0 4dr

  • 2022
  • 54,439 miles
  • Trim levelComfort Edition
  • 3.0L Diesel
  • Sedan
  • Automatic
  • 335 HP (246 kW)
  • mpg46.3
  • CO2160 g CO2/km comb.
  • Details
autouncle-certified

Super price

£32,000
£35,000
Marketplace
SY1 4AQ Shrewsbury, Shropshire
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1 / 4

Used (2025) BMW M340 M Sport 369 HP | Super price

3 Series i xDrive Saloon 3.0

  • 2025
  • 4,022 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 369 HP (271 kW)
  • mpg35.8
  • CO2177 g CO2/km comb.
  • Details
autouncle-certified

Super price

£49,875
£48,975
Marketplace
BN16 3FH Littlehampton, West Sussex
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-13%
1 / 4

Used (2025) BMW M340 M Sport 369 HP | Super price

3 Series i xDrive Saloon 3.0

  • 2025
  • 4,164 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 369 HP (271 kW)
  • mpg34.9
  • CO2182 g CO2/km comb.
  • Details
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Super price

£48,500
£56,000
Marketplace
WV2 1AD Wolverhampton, West Midlands
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1 / 4

Used (2025) BMW M340 M Sport 374 HP | Super price

3 Series i xDrive MHT 4dr Step

  • Mar 2025
  • 4,030 miles
  • Trim levelM Sport
  • 3.0L Petrol
  • Sedan
  • Automatic
  • 374 HP (275 kW)
  • CO2177 g CO2/km comb.
  • Details
autouncle-certified

Super price

£49,875
£48,975
Dealer
BMW
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-1%
1 / 4

Used (2022) BMW M340 Comfort Edition 334 HP | Super price

3 Series xDrive MHT 4dr Step

  • 2022
  • 17,289 miles
  • Trim levelComfort Edition
  • 3.0L Hybrid
  • Sedan
  • Automatic
  • 334 HP (245 kW)
  • Details
autouncle-certified

Super price

£38,295
£38,995
Marketplace
WC1E 7DP London, London
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Showing 1 - 25 of 372 results

How much does the BMW M340 depreciate?

Used BMW M340

A used BMW M340 (2021) model gains about £32 per month in value.


Factors that affect the appreciation of a BMW M340:
- Mileage
- Age of the vehicle
- Number of previous owners
- Accidents or damage history
- Trim level, equipment, and options


Appreciation is an important part of calculating the total value of owning a BMW M340. In addition to the monthly appreciation of £32, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly value.

How much does a used BMW M340 cost? Prices, ratings and depreciation by model year

How much does a used BMW M340 cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

2026 BMW M340

£50,995 - £58,808£55,93312 miles-< 10

2025 BMW M340

£43,145 - £69,430£54,4764,355 miles-£8,02072

2024 BMW M340

£38,990 - £56,000£47,59214,470 miles-£5,24041

2023 BMW M340

£37,496 - £53,995£46,50623,415 miles-£84046

2022 BMW M340

£28,995 - £44,491£37,32727,197 miles-£26067

2020 BMW M340

£24,994 - £39,000£33,20344,859 miles-£20044

2021 BMW M340

£25,999 - £37,995£32,69241,723 miles+£38084

2019 BMW M340

£26,999 - £35,000£31,61851,000 miles-£2,46011

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 3 February 2026

Comparison of BMW M340 variants and prices

Below you can compare prices and depreciation for the 6 most popular BMW M340 variants. The table is updated daily with data from the market in United Kingdom.

Comparison of BMW M340 variants and prices

Variant

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

🏆 The most popular

BMW M340 M Sport

£28,000 - £64,202£43,26720,750.5 miles+£2,360246

BMW M340 Comfort Edition

£25,999 - £54,000£39,13227,955.5 miles-£4,94072

BMW M340 Shadowline

£28,995 - £51,901£38,92032,461 miles-£7,72018

BMW M340 M Performance

£27,991 - £46,995£35,86728,929.5 miles-< 10

BMW M340 Impressive

£27,998 - £51,901£34,77040,893 miles-< 10
💰 The budget choice

BMW M340 Performance

£22,995 - £38,580£30,14360,000 miles-< 10

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 3 February 2026

Which variant should you choose?

💰 The budget choice

The Performance is the cheapest entry point with an average price of £30,143.

Accuracy will improve as more cars from this variant become available

🏆 The most popular

There are the most M Sport for sale right now (246), which gives you the most options to choose from.

📈 The best value

The M Sport has held its price stable with minimal loss in value over the past year (+£2,360).

BMW M340 (model year 2021) - Price development for the last 12 months and price projection for the next 6 months (February 2025 - July 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2025 - February
£32,160
£29,780£34,540
Estimate
2025 - March
£32,220
£29,660£34,800
Estimate
2025 - April
£32,040
£29,580£34,500
Estimate
2025 - May
£32,640
£30,220£35,040
Estimate
2025 - June
£32,440
£30,220£34,680
Estimate
2025 - July
£32,000
£29,900£34,100
Estimate
2025 - August
£31,940
£29,820£34,060
Estimate
2025 - September
£32,340
£29,780£34,880
Estimate
2025 - October
£32,580
£30,040£35,120
Estimate
2025 - November
£32,240
£29,340£35,120
Estimate
2025 - December
£32,520
£29,560£35,460
Estimate
2026 - January
£32,540
£29,480£35,580
Estimate
2026 - March
£32,780
--
Forecast
2026 - April
£32,900
--
Forecast
2026 - May
£33,020
--
Forecast
2026 - June
£33,140
--
Forecast
2026 - July
£33,260
--
Forecast

All estimates and forecasts are based on actual market data

Last updated: 3 February 2026

Average Monthly Depreciation

A summary of the past 12 and an estimation of the next 6 months.

Past 12 months

£380

Next 6 months

£720

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Super price

Good price

Fair price

A bit pricey

Expensive

Are you looking for a used BMW M340?

Seeking the best value on a second-hand car? Look no further than the BMW M340 - an excellent choice! On AutoUncle, you can find 405 used BMW M340s for sale in the UK compiled from various dealership websites and online marketplaces.

What is the cost of a pre-owned BMW M340?

The price of a used BMW M340 ranges from £27,702 for the cheapest model to £56,306 for the latest and most well-equipped model.

The used car price of an BMW M340 is determined by a number of factors, the most important of which are the year, engine size and power, fuel economy, how far the car has travelled along with equipment.

For instance, a more recent model with limited mileage, or a premium variant featuring a powerful engine, typically commands a higher price than, for example, an older car without special equipment and with many kilometres behind it.

What versions of the BMW M340 are available based on equipment?

Here is an overview of the most popular equipment variants for BMW M340, sorted by number of cars for sale and their market price:

As you considers the cost of a used BMW M340, it's fundamental to analyze vehicles having the same engines and equipment. If you don't, you might draw an inaccurate conclusion about which car to purchase.

Is the BMW M340 available with multiple fuel options?

For the BMW M340, petrol is the most favored fuel.

Price comparison of popular fuel types for BMW M340:

  • BMW M340 petrol: 223 cars currently available with an average price of £41,884
  • BMW M340 diesel: 96 cars currently available with an average price of £38,308
  • BMW M340 plug-in hybrid: Currently there is 86 cars available on AutoUncle with an average price of £37,025

There are a few questions you should ask yourself when deciding on a fuel type. How many miles do you drive in a normal week? Do you take many short trips, or do you tend to drive long distances?

If your trips are mostly short, electric, plug-in hybrid or petrol may make the most sense. For daily long-distance driving, the electric car is often ideal - especially with a charger at home or at work. If you have a daily commute over longer distances, a modern electric car can be a great choice - especially if you have access to charging at home or at work. For those who drive long distances and don't have access to charging, diesel cars can still be an option. It’s worth noting that diesel engines with high emissions are banned from entering cities in certain countries.

What kind of car is the BMW M340?

The BMW M340 is only available in the sedan body type in the UK. Usually fitted with four doors, the saloon or sedan body type has been popular with families for a long time. With its versatile design, the saloon caters to a range of needs, from daily commutes to longer journeys, and remains a symbol of elegance and practicality in the automotive world.

Curious about what other alternatives are available?

There are various similar cars to the BMW M340.

Popular alternatives to the BMW M340

  • BMW 320
  • Audi A4
  • MG ZS

With a current inventory of 3,001 available models on AutoUncle, the BMW 320 stands out as the top alternative to the BMW M340. The BMW 320 has an average price tag of £19,489.

The Audi A4 is a strong option in this segment, with 2,431 cars currently for sale on AutoUncle and an average price of £15,750. Another good choice for an alternative car is the MG ZS with 2,372 cars for sale for the average price of £13,992.

Reflecting on the move to an electrically powered car?

If you are looking for an electric car within the same car segment as the BMW M340, here are some few suggestions:

Haven't found an electric car that resonates with you? Examine our full lineup of electric cars here.

All regions for BMW M340

All fuel types for BMW M340

All years for BMW M340

All trim level for BMW M340