Mercedes X
Reliability, estimated running costs, and MOT data across 4 model years from 10,504 MOT tests in 2024.
Avg Pass Rate
89%
Total Tests
10,504
Highest Pass Rate
2020 (90%)
Years Covered
4
About the Mercedes X
The Mercedes X was MOT tested 10,504 times in 2024 (DVSA data, retests included) across 4 model years (2017 to 2020), with an average pass rate of 89%. That's comfortably above the average of 82% across all models in our data. Our records list diesel versions.
Best and Worst Years
Of the years with at least 100 tests, the 2020 model has the highest pass rate at 90% from 1,679 tests. The 2018 model has the lowest at 88%. With just a 2 point gap, pass rates are similar across these years. Newer cars usually pass more often simply because they are younger.
Reliability Trend
The Mercedes X has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.
Mileage Across Years
The oldest model in our data (2017) averages 73,721 miles, while the newest (2020) averages 46,188 miles.
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 2020 detailsHow reliable is the Mercedes X?
Mercedes X by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
Questions about the Mercedes X
Is the Mercedes X reliable?
Across its 4 model years in our data (2017 to 2020), the Mercedes X averages an 89% MOT pass rate, from 10,504 tests (DVSA MOT data for tests in 2024, retests included). That's 7 points above the average of 82% across all models in the same data. The 2020 model has the highest pass rate of the years with at least 100 tests, at 90%.
Which year Mercedes X has the best MOT pass rate?
Of the years with at least 100 tests, the 2020 Mercedes X has the highest MOT pass rate at 90%, while the 2018 model has the lowest at 88%, a 2 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
Are newer Mercedes Xs more reliable?
The Mercedes X has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.
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