BMW M340D Xdrive MHEV Auto (2020)

Estimated running costs and MOT pass rates from 770 MOT tests in 2024.

Annual Cost

£2,133

£178/month

MOT Pass Rate

93%

Excellent

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 30-42

2993cc Diesel hybrid

Great Choice

93% pass rate, £2,133/year to run. 11 points above average.

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Diesel hybrid2993cc6 years old770 tests39k miles avg

Annual Running Costs

Fuel (Diesel hybrid, 2993cc)

~40 mpg (diesel-engine estimate; hybrids usually use less)

£1,678

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£2,133

Per month£178/mo

Per week£41/wk

Estimates based on 7,400 miles/year (UK average), diesel at 199.52p a litre (GOV.UK weekly average, week of 5 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).

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Reliability Verdict

93% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 11 points above the average of 82% across all models in our data. It also outperforms the BMW brand average of 88%.

93% of MOT tests on BMW M340D Xdrive MHEV Autos from 2020 ended in a pass in 2024, when they were about 4 years old. That's based on 770 tests across the UK, retests included. The average mileage recorded at those tests was 39,495 miles.

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How Does It Compare?

Rank among 2020 models1007th of 2,554(top half)

Rank among BMW models368th of 1,548(top 24%)

vs average of all models+11%(82% avg)

vs 2020 models average+1%(92% avg)

vs BMW average+5%(88% avg)

Mileage Analysis

39,495

Average miles

29,600

Expected for age

The average 2020 BMW M340D Xdrive MHEV Auto had 39,495 miles on the clock at its 2024 MOT, which is above the expected 29,600 miles for a 4-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.

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BMW M340D Xdrive MHEV Auto by Year

Year	Pass Rate	Tests	Avg Mileage
2022	90%	167	28,513 mi
2021	92%	3,975	35,270 mi
2020	93%	770	39,495 mi

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Land Rover Range Rover Velar

2020 · 3000cc Diesel hybrid

£2,133/year

92%

-1%

BMW X5 XDRIVE30D M Sport MHEV Auto

2021 · 2993cc Diesel hybrid

£2,133/year

92%

-1%

BMW 530D Xdrive M Sport MHEV Auto

2021 · 2993cc Diesel hybrid

£2,283/year

89%

-4%

Land Rover Defender Xdynamic Hse D MHEV A

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About the 2020 BMW M340D Xdrive MHEV Auto

The 2020 BMW M340D Xdrive MHEV Auto is a premium performance car. Our records list a 2993cc diesel hybrid engine, though engines vary between versions. 770 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. Among all models from 2020, the average MOT pass rate is 92%, and this model beats that benchmark.

With an average of 39,495 miles recorded at its 2024 MOT tests, BMW M340D Xdrive MHEV Auto owners cover more miles than the average driver.

2020 BMW M340D Xdrive MHEV Auto Fuel Costs

The 2993cc diesel hybrid engine is on the larger side, so fuel won't be this car's strong point. Our estimate uses around 40 mpg, the figure for a diesel engine of this size, which works out to roughly £1,678 per year with diesel at 199.52p per litre (GOV.UK weekly average, week of 5 October 2026; based on 7,400 miles per year). As a hybrid it should use less than that, and real-world fuel costs depend a lot on how much electric-only driving you do.

What does it cost to own a 2020 BMW M340D Xdrive MHEV Auto?

Total estimated annual running cost is £2,133 (£178/month), broken down as £1,678 fuel, £200 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2020 BMW M340D Xdrive MHEV Auto

At 6 years old, the BMW M340D Xdrive MHEV Auto offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

Hybrid Battery Health

Medium risk

After 6 years, hybrid battery capacity may have reduced. A full replacement costs £2,000-£4,000, though reconditioning is cheaper at £500-£1,500.

Inverter and Power Electronics

Low risk

The inverter converts DC to AC for the electric motor. Failures are expensive (£1,500+) but relatively rare. Listen for unusual buzzing sounds.

Regenerative Braking

Medium risk

Brake discs can corrode from reduced use (the electric motor handles most braking). Surface rust is normal but deep pitting needs attention.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2020 BMW M340D Xdrive MHEV Auto stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
BMW M340D Xdrive MHEV Auto(2020)	93%	£1,678	£200	Grp 30-42	£2,133
Land Rover Range Rover Velar(2020)	92%	£1,678	£200	Grp 30-42	£2,133same
BMW X5 XDRIVE30D M Sport MHEV Auto(2021)	92%	£1,678	£200	Grp 30-42	£2,133same
BMW 530D Xdrive M Sport MHEV Auto(2021)	89%	£1,678	£200	Grp 30-42	£2,283+£150
Land Rover Defender Xdynamic Hse D MHEV A(2021)	96%	£1,678	£200	Grp 30-42	£2,133same

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 5 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2020 BMW M340D Xdrive MHEV Auto

Is the 2020 BMW M340D Xdrive MHEV Auto reliable?

Excellent reliability. Very few MOT failures. 93% of MOT tests on 2020 BMW M340D Xdrive MHEV Autos ended in a pass, from 770 tests (DVSA MOT data for tests in 2024, retests included). That's 11 points above the average of 82% across all models in the same data.

How much does a 2020 BMW M340D Xdrive MHEV Auto cost to run?

Our estimate is £2,133 a year (£178 a month): £1,678 fuel, £200 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2020 BMW M340D Xdrive MHEV Auto?

93% of 770 MOT tests on the 2020 BMW M340D Xdrive MHEV Auto ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 1007th of 2,554 models first registered in 2020 (top half).

Which year BMW M340D Xdrive MHEV Auto has the best MOT pass rate?

Of the years with at least 100 tests, the 2020 BMW M340D Xdrive MHEV Auto has the highest MOT pass rate at 93% and the 2021 the lowest at 92%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2020 BMW M340D Xdrive MHEV Auto?

The average mileage recorded at MOT tests on the 2020 BMW M340D Xdrive MHEV Auto is 39,495 miles, which is above the expected 29,600 miles for a 4-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.