BMW 520I M SPORT MHEV AUTO (2021)
Running costs, common problems, and reliability data based on 945 real MOT tests in 2024.
MOT Pass Rate
94%
Total Tests (2024)
945
Avg Mileage
26,968 mi
Est. Annual Cost
£1,772
Is the 2021 BMW 520I M SPORT MHEV AUTO reliable?
Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%. It also outperforms the BMW brand average of 88%.
At 3 years old, 94% of BMW 520I M SPORT MHEV AUTOs from 2021 passed their MOT first time in 2024. That's based on 945 tests across the UK. The average mileage at this age is 26,968 miles.
How does the 2021 BMW 520I M SPORT MHEV AUTO compare?
Mileage Analysis
The average 2021 BMW 520I M SPORT MHEV AUTO has 26,968 miles on the clock, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
How much does a 2021 BMW 520I 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 520I M SPORT MHEV AUTO by Year
Checking a specific BMW 520I M SPORT MHEV AUTO?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 BMW 520I M SPORT MHEV AUTO
The 2021 BMW 520I M SPORT MHEV AUTO is a premium with a 1998cc hybrid engine. 945 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 26,968 miles at 3 years old, BMW 520I M SPORT MHEV AUTO owners cover more miles than the average driver.
2021 BMW 520I M SPORT MHEV AUTO Fuel Costs
The 1998cc hybrid engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 per year at current hybrid prices of 142p per litre (based on 7,400 miles per year). As a hybrid, real-world fuel costs will vary significantly depending on how much electric-only driving you do.
What does it cost to own a 2021 BMW 520I M SPORT MHEV AUTO?
Total estimated annual running cost is £1,772 (£148/month), broken down as £1327 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
BMW 520I M SPORT MHEV AUTO Reliability Trend
The BMW 520I M SPORT MHEV AUTO has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2021 BMW 520I M SPORT MHEV AUTO
At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet.
Alternatives to the 2021 BMW 520I M SPORT MHEV AUTO
The BMW 520I M SPORT MHEV AUTO is actually the most reliable option among similar hybrid premiums from this era. Here are comparable hybrid cars with similar engines:
- MINI COOPER S (2019) 92% pass rate (-2%) from 33,682 tests
- LAND ROVER RANGE ROVER SPORT (2019) 94% pass rate (same) from 33,069 tests
- TOYOTA C-HR (2019) 92% pass rate (-2%) from 29,893 tests
- MINI COUNTRYMAN (2019) 93% pass rate (-1%) from 25,254 tests