BMW 318D M SPORT MHEV AUTO (2021)
Running costs, reliability data, and common problems from 811 real MOT tests.
Annual Cost
£1,927
£161/month
MOT Pass Rate
88%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 18-32
1995cc Petrol
Solid Option
88% pass rate, £1927/year to run. 6 points above average.
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Annual Running Costs
~36 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 6 points above the national average of 82%.
At 5 years old, 88% of BMW 318D M SPORT MHEV AUTOs from 2021 passed their MOT first time in 2026. That's based on 811 tests across the UK. The average mileage at this age is 37,259 miles.
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How Does It Compare?
Mileage Analysis
37,259
Average miles
37,000
Expected for age
The average 2021 BMW 318D M SPORT MHEV AUTO has 37,259 miles on the clock, which is in line with the expected 37,000 miles for a 5-year-old car, suggesting normal everyday use.
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Best Year to Buy?
The most reliable year is the 2020 model with a 90% MOT pass rate, while the 2021 model has the lowest at 88%. Consider a different year if reliability is a priority.
BMW 318D M SPORT MHEV AUTO by Year
Similar Cars to Consider
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About the 2021 BMW 318D M SPORT MHEV AUTO
The 2021 BMW 318D M SPORT MHEV AUTO is a premium with a 1995cc petrol engine. 811 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. It sits in the bottom 84% of 2021 cars for MOT pass rates.
With an average of 37,259 miles at 5 years old, BMW 318D M SPORT MHEV AUTO owners drive about as much as the UK average.
2021 BMW 318D M SPORT MHEV AUTO Fuel Costs
The 1995cc petrol 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 petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2021 BMW 318D M SPORT MHEV AUTO?
Total estimated annual running cost is £1,927 (£161/month), broken down as £1327 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2021 BMW 318D M SPORT MHEV AUTO
At 5 years old, the BMW 318D 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.
Common Issues to Watch For
Based on the 2021 BMW 318D M SPORT MHEV AUTO's fuel type, age, and engine size, these are the most likely problem areas to check.
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 318D M SPORT MHEV AUTO stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| BMW 318D M SPORT MHEV AUTO(2021) | 88% | £1327 | £195 | Grp 18-32 | £1927 |
| LAND ROVER DISCOVERY SPORT R-DYN SE D A(2020) | 90% | £1327 | £190 | Grp 18-32 | £1772-£155 |
| BMW 520D M SPORT MHEV AUTO(2021) | 89% | £1327 | £190 | Grp 18-32 | £1922-£5 |
| BMW 320D M SPORT MHEV AUTO(2021) | 91% | £1327 | £190 | Grp 18-32 | £1772-£155 |
| VOLVO XC90 R-DESIGN B5 MHEV AWD AUTO(2021) | 90% | £1327 | £190 | Grp 18-32 | £1772-£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
Explore other Bmw cars or similar models in the same category.
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BMW 520D M SPORT MHEV AUTO
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BMW 320D M SPORT MHEV AUTO
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