Petrol Kia Rio: MOT pass rate

76.8% of petrol Kia Rios pass the MOT first time, measured across 77,352 DVSA tests on that fuel type alone. Average mileage at test was 59,898.

Petrol against the other Kia Rio versions

Fuel Pass rate Tests
Petrol 76.8% 77,352
Diesel 66.1% 19,769
All Kia Rio74.7%97,123

Why the fuel type changes the number

Petrol cars avoid the DPF and emissions failures that catch diesels, and usually fail on the same consumables as any other car.

On the Kia Rio specifically, petrol is the strongest at 76.8%, and this petrol version sits 2.1 points above the 74.7% model average.

What it means if you are buying one

The petrol Kia Rio is the stronger side of this model on MOT data. Still judge the individual car, but the fuel type is a mild point in its favour. Buying a damaged one? run it through the analyzer, check the exact car, decode the VIN and check the mileage before you bid.

Mileage is part of the answer

The average petrol Kia Rio had covered 59,898 miles at test, against 89,386 for the diesel. That is around average, so condition and service history will tell you more than the odometer does.

Fuel type and mileage are tangled together: diesels are usually bought by higher-mileage drivers, so some of any gap between fuels is the miles rather than the engine. The per-year figures on the Kia Rio page separate age from fuel if you want to isolate one.

Most common MOT failures on a petrol Kia Rio

  1. A steering ball joint with excessive wear or free play, 3% of tests (2.26x the national rate for this defect)
  2. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 3.6% of tests (1.98x the national rate for this defect)
  3. Brake disc or drum significantly and obviously worn, 1.3% of tests (1.59x the national rate for this defect)
  4. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 2.5% of tests (1.5x the national rate for this defect)
  5. Wiper blade missing or obviously not clearing the windscreen, 2.8% of tests (1.45x the national rate for this defect)
  6. Significant brake effort recorded with no brake applied indicating a binding brake, 1.2% of tests (1.19x the national rate for this defect)
  7. Brake pipe damaged or excessively corroded, 1.3% of tests (1.17x the national rate for this defect)
  8. A suspension pin, bush or joint excessively worn, 4.2% of tests
  9. Tyre tread depth not in accordance with the requirements, 3.7% of tests
  10. A tyre seriously damaged, 2.9% of tests

From 77,680 DVSA-tracked petrol Kia Rio tests, 2024, split out from the Kia Rio's other fuel types. DVSA testers marked 5.46% of these flagged defects as "dangerous", against 5.11% nationally. See which fuel type fails on the most dangerous defects nationally for how that compares across the whole fleet.

Most common MOT advisories on a petrol Kia Rio

Flagged but doesn't fail the car, a different list from the failures above.

  1. A steering ball joint with excessive wear or free play, 2.7% of tests (2.05x the national rate for this defect), also fails
  2. Significant brake effort recorded with no brake applied indicating a binding brake, 3.2% of tests (1.58x the national rate for this defect), also fails
  3. A suspension component excessively damaged or corroded, 7.4% of tests (1.42x the national rate for this defect)
  4. Brake disc or drum significantly and obviously worn, 4.3% of tests (1.37x the national rate for this defect), also fails
  5. A tyre seriously damaged, 18.7% of tests (1.21x the national rate for this defect), also fails
  6. Exhaust system leaking or insecure, 3.3% of tests (1.17x the national rate for this defect)
  7. Tyre tread depth not in accordance with the requirements, 25.8% of tests, also fails
  8. Brake disc or drum excessively weakened, insecure or fractured, 13.7% of tests
  9. A suspension pin, bush or joint excessively worn, 10.1% of tests, also fails
  10. a brake lining or pad worn below 1.5mm, 9.9% of tests

From 77,680 DVSA-tracked petrol Kia Rio tests, 2024.

Other Kia Rio fuel types

All Kia Rio MOT data · Every model