81.3%
pass rate across 182,472 tests
77.4% first-time pass rate
59,917 mi median at test
The same model, 3 years apart, compared on 334,367 real MOT tests. The raw pass rate mostly measures age; the like-for-like row and the mileage bands show what survives that adjustment.
81.3%
pass rate across 182,472 tests
77.4% first-time pass rate
59,917 mi median at test
83.3%
pass rate across 151,895 tests
80.2% first-time pass rate
39,291 mi median at test
The short answer
Across 334,367 tests, the 2018 Polo passes 83.3% of MOTs and the 2015 81.3%. The 2018 cars are 3 years newer and were tested at a median 39,291 miles against 59,917, so part of that gap is simply age and use. Against what their age and mileage predict, the 2018 is −4.6 points and the 2015 −0.8 — a like-for-like gap of −3.8 points. Most of the raw advantage disappears once the two are matched. Typical repair bills are £36–£102 on the 2015 and £23–£56 on the 2018. The older year is the more expensive of the two when it fails. Repairs under £30 account for 31% of the 2015's recorded faults and 10% of the 2018's. The most common failing part is suspension component on the 2015 and ball joint on the 2018.
| Measure | 2015 | 2018 |
|---|---|---|
| MOT tests on record | 182,472 | 151,895 |
| Pass rate, all MOTs | 81.3% | 83.3% stronger figure |
| First-time pass rate | 77.4% | 80.2% stronger figure |
| Against the UK average | −0.8 pts stronger figure | −4.6 pts |
| Like-for-like, age and mileage adjusted | −0.8 pts stronger figure | −4.6 pts |
| Average mileage at test | 61,908 mi | 41,532 mi |
| Median mileage at test | 59,917 mi | 39,291 mi |
| Typical repair bill | £36–£102 | £23–£56 stronger figure |
| Repairs under £30 | 31% stronger figure | 10% |
| Most common failing part | Suspension Component | Ball Joint |
| Variants recorded | 1 | 1 |
| Main fuel | Petrol 92% | Petrol 99% |
A ✓ marks the stronger figure in each row. It compares the two model years, not either one against the national average.
The most common priced failures on each year, as a share of that year's tests. Repair costs are estimates from UK parts data, not quotes.
Pass rate by the mileage recorded at test. If the lead shrinks in the high-mileage bands, part of the headline difference was a younger, lower-mileage sample.
| Mileage | 2015 | 2018 |
|---|---|---|
| 0–30,000 mi | 90.2% · 18,559 tests | 87.2% · 45,008 tests |
| 30,000–60,000 mi | 83.6% · 72,933 tests | 82.4% · 83,190 tests |
| 60,000–90,000 mi | 78.6% · 66,056 tests | 79.2% · 20,918 tests |
| 90,000–120,000 mi | 75.6% · 20,525 tests | 76.9% · 2,412 tests |
| 120,000+ mi | 74.0% · 4,376 tests | 79.8% · 351 tests |
Compare another pair of years for the Volkswagen Polo? Pick two years →
Compare a different pair of years? Pick two years of the Volkswagen Polo →
Or put the Polo against another model: Compare the Volkswagen Polo side by side →