Kia Rio Reliability: Common Problems and Years to Avoid
What the Kia Rio fails its MOT on, with rough repair costs, and how each model year's MOT pass rate compares with other cars of the same age. Based on 167,541 MOT tests across 21 model years (DVSA data for tests carried out in 2024, retests included).
Segment: small family car | Fuel: Petrol, Diesel
80%
Kia Rio pass rate
86%
Kia average
82%
All-model average
The Kia Rio has an average MOT pass rate of 80%, which is 6 points below the Kia average and 2 points below the average across all models in our data. Newer Kia Rios pass their MOT more often than older ones, by 17 percentage points on average, which is mostly down to age and wear.
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What the Kia Rio Fails Its MOT On
Of the 29,179 MOT tests on the Kia Rio that failed at the first attempt in 2025, the share that failed on each part of the test, next to the share for all cars and vans of the same ages. A test that failed on two areas counts in both.
Lights and electrics
38%Cars and vans the same age: 39% · Typical repair £15-£200
Suspension
27%Cars and vans the same age: 34% (the Rio fails on this less often) · Typical repair £150-£600
Brakes
26%Cars and vans the same age: 22% · Typical repair £80-£450
Tyres
22%Cars and vans the same age: 22% · Typical repair £50-£300
Windscreen, wipers and mirrors
20%Cars and vans the same age: 15% (the Rio fails on this more often) · Typical repair £10-£350
The 3 single faults it failed on most
- Position lamp: not working (12% of failed tests, lights and electrics)
- Track rod end: ball joint has excessive play (9.2% of failed tests, steering)
- Wipers: does not clear the windscreen effectively (8.9% of failed tests, windscreen, wipers and mirrors)
Source: CarCostCheck analysis of DVSA anonymised MOT test results and failure items for 2025: first attempt at each MOT, fail and pass-after-repair defects, DVSA's defect categories (names shortened). Repair costs are rough UK ranges, not quotes. Method and national figures: MOT failure reasons 2025.
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Kia Rio Years to Avoid
Every car in the 2024 MOT data was tested at the same age as the other cars first registered that year, so each Rio year is compared with all cars from the same year. Years with 1,000+ tests that were at least three years old are included.
Failed more often than cars their age
Passed more often than cars their age
No year passed 3 or more points more often than other cars of the same age.
A lower pass rate means that year failed its MOT more often in 2024; it does not mean every car from that year is bad. Old cars still on the road are often the best-kept ones, which can lift the pass rates of the oldest years. How a car has been looked after matters more, so check the MOT history of the car you are looking at.
Kia Rio Reliability by Year
MOT pass rate for each model year, from DVSA data for tests carried out in 2024 (retests included). Newer cars usually pass more often simply because they are younger. All Cars is the pass rate of every car first registered that year, with the gap in points. Highest and lowest are marked among years with 100+ tests that were at least three years old when tested. Fuel and engine size are a guide only.
| Year | Fuel | Engine | Pass Rate | Fail Rate | All Cars |
|---|---|---|---|---|---|
| 2022 | Petrol | 1.0L | 95% | 3% | - |
| 2021 | Petrol | 1.0L | 95% | 5% | 93% (+2) |
| 2020 | Petrol | 1.4L | 91% | 9% | 92% (-1) |
| 2019 | Petrol | 1.4L | 89% | 10% | 91% (-2) |
| 2018 | Petrol | 1.4L | 90% | 10% | 89% (+1) |
| 2017 | Petrol | 1.4L | 88% | 12% | 87% (+1) |
| 2016 | Petrol | 1.2L | 85% | 15% | 86% (-1) |
| 2015 | Diesel | 1.1L | 84% | 16% | 84% (0) |
| 2014 | Petrol | 1.2L | 78% | 21% | 82% (-4) |
| 2013 | Diesel | 1.1L | 76% | 24% | 80% (-4) |
| 2012 | Diesel | 1.1L | 74% | 25% | 79% (-5) |
| 2011 | Petrol | 1.5L | 72% | 28% | 77% (-5) |
| 2010 | Petrol | 1.5L | 72% | 28% | 75% (-3) |
| 2009 | Petrol | 1.4L | 71% | 28% | 75% (-4) |
| 2008 | Petrol | 1.4L | 68% | 31% | 74% (-6) |
| 2007 | Petrol | 1.5L | 67% | 32% | 73% (-6) |
| 2006 | Diesel | 1.4L | 69% | 31% | 73% (-4) |
| 2005 | Petrol | 1.4L | 69% | 30% | 73% (-4) |
| 2004 | Petrol | 1.4L | 64% | 36% | - |
| 2003 | Petrol | 1.3L | 65% | 34% | - |
| 2002 | Petrol | 1.5L | 68% | 31% | - |
Kia Rio Running Costs
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Kia Rio FAQ
What are the most common Kia Rio problems?
In 2025, MOT tests on the Kia Rio that failed at the first attempt most often failed on lights and electrics (38% of the 29,179 failed tests), suspension (27%) and brakes (26%). The single most common fault was "Position lamp: not working" (12%). Across 167,541 MOT tests (DVSA MOT data for tests in 2024, retests included), 80% ended in a pass.
Is the Kia Rio reliable?
The Kia Rio has an average MOT pass rate of 80%, from 167,541 MOT tests (DVSA MOT data for tests in 2024, retests included). Comparing each model year with all cars first registered the same year, so that age is allowed for, it passed within 2 points of other cars of the same age, so about average for its age.
Which Kia Rio years should I avoid?
Compared with all cars first registered the same year (DVSA MOT data for tests in 2024, retests included), the 2008 (68% of 3,800 tests passed, against 74% for all 2008 cars), the 2007 (67% of 2,363 tests passed, against 73% for all 2007 cars) and the 2012 (74% of 16,466 tests passed, against 79% for all 2012 cars) failed their MOT most often for their age. A year's pass rate does not tell you about one car, so check the MOT history of the car you are buying.
How much does it cost to fix common Kia Rio faults?
As a rough guide, brake work on a Kia Rio typically costs £80-£450 and suspension repairs £150-£600, while exhaust and emissions fixes can cost £80-£800. Lighting and wiper fixes are usually under £200.
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Other Kia Models
Common problems pages for other Kia models