BMW M3 CS S-A
Reliability, estimated running costs, and MOT data across 2 model years from 227 MOT tests in 2024.
Avg Pass Rate
100%
Total Tests
227
Highest Pass Rate
2018 (100%)
Years Covered
2
About the BMW M3 CS S-A
The BMW M3 CS S-A was MOT tested 227 times in 2024 (DVSA data, retests included) across 2 model years (2018 to 2019), with an average pass rate of 100%. That's comfortably above the average of 82% across all models in our data. Our records list petrol versions.
Best and Worst Years
Of the years with at least 100 tests, the 2018 model has the highest pass rate at 100% from 111 tests. The 2019 model has the lowest at 99%. With just a 1 point gap, pass rates are similar across these years. Newer cars usually pass more often simply because they are younger.
Mileage Across Years
The oldest model in our data (2018) averages 21,781 miles, while the newest (2019) averages 20,867 miles.
Compared to the BMW brand average of 88%, the M3 CS S-A performs 12 points better, making it one of the more reliable options in the BMW range.
Estimated Running Costs
Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.
Full 2019 detailsHow reliable is the BMW M3 CS S-A?
BMW M3 CS S-A by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
Questions about the BMW M3 CS S-A
Is the BMW M3 CS S-A reliable?
Across its 2 model years in our data (2018 to 2019), the BMW M3 CS S-A averages a 100% MOT pass rate, from 227 tests (DVSA MOT data for tests in 2024, retests included). That's 18 points above the average of 82% across all models in the same data. The 2018 model has the highest pass rate of the years with at least 100 tests, at 100%.
Which year BMW M3 CS S-A has the best MOT pass rate?
Of the years with at least 100 tests, the 2018 BMW M3 CS S-A has the highest MOT pass rate at 100%, while the 2019 model has the lowest at 99%, a 1 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
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