BMW X6 XDRIVE40I M SPORT AUTO (2021)
Running costs, reliability data, and common problems from 99 real MOT tests.
Annual Cost
£2,192
£183/month
MOT Pass Rate
89%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 30-42
2998cc Petrol
Solid Option
89% pass rate, £2192/year to run. 7 points above average.
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Annual Running Costs
~30 mpg
Flat rate (post-2017)
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.
At 5 years old, 89% of BMW X6 XDRIVE40I M SPORT AUTOs from 2021 passed their MOT first time in 2026. That's based on 99 tests across the UK. The average mileage at this age is 29,237 miles.
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How Does It Compare?
Mileage Analysis
29,237
Average miles
37,000
Expected for age
The average 2021 BMW X6 XDRIVE40I M SPORT AUTO has 29,237 miles on the clock, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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Best Year to Buy?
The most reliable year is the 2020 model with a 95% MOT pass rate, while the 2019 model has the lowest at 84%. The 2021 sits between the two at 89%.
BMW X6 XDRIVE40I M SPORT AUTO by Year
Similar Cars to Consider
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About the 2021 BMW X6 XDRIVE40I M SPORT AUTO
The 2021 BMW X6 XDRIVE40I M SPORT AUTO is a premium performance with a 2998cc petrol engine. 99 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It sits in the bottom 82% of 2021 cars for MOT pass rates.
With an average of 29,237 miles at 5 years old, BMW X6 XDRIVE40I M SPORT AUTO owners tend to use this car less than the typical driver.
2021 BMW X6 XDRIVE40I M SPORT AUTO Fuel Costs
The 2998cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2021 BMW X6 XDRIVE40I M SPORT AUTO?
Total estimated annual running cost is £2,192 (£183/month), broken down as £1592 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.
BMW X6 XDRIVE40I M SPORT AUTO Reliability Trend
Newer BMW X6 XDRIVE40I M SPORT AUTOs show better MOT pass rates than older ones, with an average improvement of 8 percentage points.
Buying a Used 2021 BMW X6 XDRIVE40I M SPORT AUTO
At 5 years old, the BMW X6 XDRIVE40I M SPORT 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 2020 model has the highest pass rate at 95%. Note: with only 99 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2021 BMW X6 XDRIVE40I M SPORT AUTO's fuel type, age, and engine size, these are the most likely problem areas to check.
Oil Consumption
Low riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
Service History
Low riskAlways 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 2021 BMW X6 XDRIVE40I M SPORT AUTO stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| BMW X6 XDRIVE40I M SPORT AUTO(2021) | 89% | £1592 | £195 | Grp 30-42 | £2192 |
| BMW 5 SERIES(2019) | 92% | £1592 | £190 | Grp 30-42 | £2037-£155 |
| BMW X3(2019) | 92% | £1592 | £190 | Grp 30-42 | £2037-£155 |
| MERCEDES GLC(2019) | 93% | £1592 | £190 | Grp 30-42 | £2037-£155 |
| BMW X5(2019) | 92% | £1592 | £190 | Grp 30-42 | £2037-£155 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Bmw Models
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BMW 5 SERIES
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MERCEDES GLC
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