BMW 520D M SPORT MHEV AUTO (2020)
Running costs, common problems, and reliability data based on 6,277 real MOT tests in 2024.
MOT Pass Rate
93%
Total Tests (2024)
6,277
Avg Mileage
42,136 mi
Est. Annual Cost
£1,482
Is the 2020 BMW 520D M SPORT MHEV AUTO reliable?
Excellent reliability. Very few MOT failures. That's 11 points above the national average of 82%. It also outperforms the BMW brand average of 88%.
At 4 years old, 93% of BMW 520D M SPORT MHEV AUTOs from 2020 passed their MOT first time in 2024. That's based on 6,277 tests across the UK. The average mileage at this age is 42,136 miles.
How does the 2020 BMW 520D M SPORT MHEV AUTO compare?
Mileage Analysis
The average 2020 BMW 520D M SPORT MHEV AUTO has 42,136 miles on the clock, 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.
Best year to buy a BMW 520D M SPORT MHEV AUTO?
The most reliable year is the 2022 model with a 94% MOT pass rate, while the 2021 model has the lowest at 89%. The 2020 sits between the two at 93%.
How much does a 2020 BMW 520D M SPORT MHEV AUTO cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
BMW 520D M SPORT MHEV AUTO by Year
Checking a specific BMW 520D M SPORT MHEV AUTO?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2020 BMW 520D M SPORT MHEV AUTO
The 2020 BMW 520D M SPORT MHEV AUTO is a premium with a 1995cc diesel engine. 6,277 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 42,136 miles at 4 years old, BMW 520D M SPORT MHEV AUTO owners cover more miles than the average driver.
2020 BMW 520D M SPORT MHEV AUTO Fuel Costs
The 1995cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 per year at current diesel prices of 148p per litre (based on 7,400 miles per year).
What does it cost to own a 2020 BMW 520D M SPORT MHEV AUTO?
Total estimated annual running cost is £1,482 (£124/month), broken down as £1037 fuel, £190 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.
BMW 520D M SPORT MHEV AUTO Reliability Trend
The BMW 520D M SPORT MHEV AUTO has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2020 BMW 520D M SPORT MHEV AUTO
At 4 years old, the BMW 520D M SPORT 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. If you're flexible on year, the 2022 model has the highest pass rate at 94%. With 6,277 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2020 BMW 520D M SPORT MHEV AUTO
The BMW 520D M SPORT MHEV AUTO is actually the most reliable option among similar diesel premiums from this era. Here are comparable diesel cars with similar engines:
- VOLKSWAGEN GOLF (2018) 92% pass rate (-1%) from 111,972 tests
- FORD FOCUS (2019) 89% pass rate (-4%) from 93,803 tests
- VOLKSWAGEN POLO (2018) 84% pass rate (-9%) from 79,867 tests
- FORD KUGA (2019) 91% pass rate (-2%) from 72,831 tests