Most Reliable Kia Models: Real MOT Data Analysis
We analysed 886,268 real UK MOT tests to reveal which Kia models pass most often, which years to buy, and which to avoid entirely.
886,268 MOT tests analysed
Real DVSA data covering every Kia model from 1995-2023
Key Findings
Most Reliable Model
Kia STONIC
89.0% pass rate
Best Single Year
SOUL 2015 Petrol
82.3% pass rate
Kia vs National Average
73.9% vs 71.4%
+2.5% above average
Best Early Performer
NIRO
+9.7% (early results)
How reliable are Kias really? We analysed 886,268 real MOT tests from the DVSA database to find out which Kia models pass most often and which years are worth buying.
This isn't survey data or owner opinions. These are actual pass/fail results from UK garages, covering Kia models sold in the UK from 2000 to 2023.
How Kia Compares to Rivals
Kia ranks #114 out of 180 manufacturers with a 73.9% average MOT pass rate. That's above the national average of 71.4%:
| Manufacturer | Pass Rate | Rank | Tests Analysed |
|---|---|---|---|
| Skoda | 76.7% | #102 | 765,656 |
| Kia | 73.9% | #114 | 886,268 |
| Toyota | 73.8% | #115 | 1,637,457 |
| Hyundai | 73.2% | #118 | 859,247 |
| Honda | 72.1% | #126 | 939,496 |
| Mazda | 71.9% | #128 | 534,605 |
| Nissan | 68.6% | #142 | 1,626,183 |
The verdict: Skoda maintains a lead among competitors, while Kia sits at #114.
Best Kia Models by MOT Pass Rate
Looking at overall reliability across all years, here's how Kia's core models rank against the 71.4% national average:
| Model | Pass Rate | vs National (71.4%) | Tests | Years |
|---|---|---|---|---|
| STONIC | 89.0% | +17.5% | 20,487 | 2017-2022 |
| NIRO | 88.4% | +17.0% | 52,221 | 2016-2023 |
| XCEED | 88.2% | +16.7% | 8,408 | 2019-2023 |
| STINGER | 88.1% | +16.6% | 1,978 | 2017-2022 |
| OPTIMA | 79.6% | +8.1% | 11,539 | 1999-2022 |
| SPORTAGE | 77.3% | +5.9% | 254,820 | 1995-2023 |
| PROCEED | 75.1% | +3.6% | 4,810 | 2007-2023 |
| VENGA | 73.5% | +2.1% | 47,798 | 2009-2019 |
| PICANTO | 71.5% | +0.0% | 179,070 | 2004-2023 |
| SOUL | 71.4% | -0.0% | 24,078 | 2009-2022 |
* Compared to overall 71.4% national average across all years. For year-adjusted comparisons that account for newer cars passing more often, see individual model breakdowns below.
Top performer
The STONIC leads Kia's lineup with an 89.0% pass rate.
Proven Durability Champions: Which Kia Models Age Best?
Long-term MOT data shows mixed results for Kia durability. Here's how specific models compare to the national average for cars of the same age:
High-confidence data: Only vehicles with 11+ years of MOT history and 100+ tests are included in this ranking.
| Model | Year | Fuel | vs Same-Age Average | Tested At | Pass Rate |
|---|
How to read this: A score of "+15%" means the model passes MOTs 15 percentage points more often than the average car of the same age. These are proven results from vehicles that have genuinely aged well.
Early Performers: Strong Start, Unproven Durability
These newer Kia models (3-6 years old) show strong early results, but haven't yet proven long-term durability:
Important caveat: Durability NOT yet proven - too early to assess long-term reliability. Older versions of the same model may tell a different story at 11+ years.
| Model | Year | Fuel | vs Same-Age Average | Tested At | Pass Rate |
|---|---|---|---|---|---|
| NIRO | - | All | +9.7% | 8-10 years | 85.1% |
| SOUL | - | All | +5.7% | 8-10 years | 81.1% |
| STONIC | - | All | +4.2% | 3-7 years | 89.0% |
| XCEED | - | All | +3.3% | 3-7 years | 88.1% |
| STINGER | - | All | +3.3% | 3-7 years | 88.1% |
| NIRO | - | All | +3.3% | 3-7 years | 88.0% |
| VENGA | - | All | +3.0% | 8-10 years | 78.4% |
| OPTIMA | - | All | +2.6% | 8-10 years | 78.0% |
What this means: These models are performing well in their early years, but we recommend checking the Durability Champions section above to see how older versions of the same model family have fared over time.
Kia SPORTAGE: Year-by-Year Breakdown
The SPORTAGE has 254,820 tests in our database with an overall 77.3% pass rate:
| Year | Fuel | Pass Rate | vs Same-Year Avg | Tests |
|---|---|---|---|---|
| 2021 | Hybrid Electric | 90.8% | -0.1% | 531 |
| 2021 | Petrol | 87.5% | -3.4% | 1,243 |
| 2020 | Petrol | 84.9% | -2.8% | 13,115 |
| 2020 | Hybrid Electric | 84.4% | -3.2% | 5,728 |
| 2020 | Diesel | 79.2% | -8.5% | 614 |
| 2019 | Hybrid Electric | 85.7% | -0.6% | 1,199 |
| 2019 | Petrol | 85.4% | -0.8% | 22,020 |
| 2019 | Diesel | 84.3% | -1.9% | 10,085 |
| 2018 | Petrol | 84.0% | -0.2% | 19,077 |
| 2018 | Diesel | 83.4% | -0.8% | 14,623 |
| 2017 | Petrol | 83.5% | +1.8% | 13,858 |
| 2017 | Diesel | 81.6% | -0.1% | 22,643 |
| ... | ||||
| 2010 | Petrol | 58.6% | -1.9% | 1,233 |
| 2009 | Diesel | 55.1% | -3.9% | 1,834 |
| 2009 | Petrol | 54.8% | -4.2% | 820 |
SPORTAGE verdict: The 2021 hybrid electric model achieves a 90.8% pass rate (19 points above average). Avoid the 2010 petrol (58.6%).
Avoid 2005-2010 SPORTAGEs
The 2010 petrol SPORTAGE has a 58.6% pass rate, well below the national average.
Kia PICANTO: Year-by-Year Breakdown
The PICANTO has 179,070 tests in our database with an overall 71.5% pass rate:
| Year | Fuel | Pass Rate | vs Same-Year Avg | Tests |
|---|---|---|---|---|
| 2020 | Petrol | 90.3% | +2.6% | 8,942 |
| 2019 | Petrol | 86.5% | +0.3% | 17,514 |
| 2018 | Petrol | 85.2% | +0.9% | 16,399 |
| 2017 | Petrol | 82.5% | +0.8% | 13,338 |
| 2016 | Petrol | 78.0% | -0.7% | 12,613 |
| 2015 | Petrol | 78.2% | +2.8% | 13,626 |
| 2014 | Petrol | 73.6% | +1.9% | 14,631 |
| 2013 | Petrol | 68.0% | -0.3% | 12,882 |
| 2012 | Petrol | 63.0% | -2.7% | 13,425 |
| 2011 | Petrol | 59.8% | -3.1% | 10,842 |
| 2010 | Petrol | 58.1% | -2.4% | 13,467 |
| 2009 | Petrol | 56.1% | -2.9% | 13,417 |
| ... | ||||
| 2011 | Petrol | 59.8% | -3.1% | 10,842 |
| 2010 | Petrol | 58.1% | -2.4% | 13,467 |
| 2009 | Petrol | 56.1% | -2.9% | 13,417 |
PICANTO verdict: The 2020 petrol model achieves a 90.3% pass rate (19 points above average). Avoid the 2011 petrol (59.8%).
Avoid 2004-2011 PICANTOs
The 2011 petrol PICANTO has a 59.8% pass rate, well below the national average.
Kia NIRO: Year-by-Year Breakdown
The NIRO has 52,221 tests in our database with an overall 88.4% pass rate:
| Year | Fuel | Pass Rate | vs Same-Year Avg | Tests |
|---|---|---|---|---|
| 2022 | Electric | 92.9% | +0.0% | 3,715 |
| 2021 | Hybrid Electric | 92.7% | +1.9% | 689 |
| 2021 | Electric | 91.0% | +0.2% | 4,089 |
| 2020 | Hybrid Electric | 89.6% | +2.0% | 12,434 |
| 2020 | Electric | 89.1% | +1.4% | 6,961 |
| 2019 | Hybrid Electric | 87.0% | +0.8% | 9,736 |
| 2019 | Electric | 84.4% | -1.8% | 724 |
| 2018 | Hybrid Electric | 86.4% | +2.1% | 7,357 |
| 2017 | Hybrid Electric | 84.1% | +2.4% | 4,541 |
| 2016 | Hybrid Electric | 85.1% | +6.5% | 1,309 |
NIRO verdict: The 2022 electric model achieves a 92.9% pass rate (21 points above average).
Kia Hybrids vs Petrol vs Diesel
Reliability varies by fuel type for Kia. Here's how each performs:
| Fuel Type | Average Pass Rate | vs National | Tests |
|---|---|---|---|
| Electric | 90.1% | +18.7% | 17,526 |
| Hybrid Electric | 87.3% | +15.9% | 46,957 |
| Plug-in Hybrid | 87.0% | +15.5% | 23 |
| Petrol | 74.7% | +3.2% | 478,343 |
| Diesel | 70.2% | -1.3% | 343,379 |
The hybrid advantage: Kia hybrids pass MOTs 13% more often than petrols and 17% more often than diesels.
Kia Models to Avoid
Not all Kias are reliable. These specific model/year combinations have failure rates well above average:
| Model | Year | Fuel | Pass Rate | Tests |
|---|---|---|---|---|
| RIO | 2011 | Diesel | 49.9% | 1,604 |
| CEED | 2011 | Diesel | 50.2% | 5,513 |
| VENGA | 2011 | Diesel | 50.5% | 1,665 |
| CEED | 2007 | Diesel | 45.5% | 1,199 |
| RIO | 2013 | Diesel | 57.2% | 2,861 |
| VENGA | 2012 | Diesel | 55.0% | 1,370 |
| CEED | 2009 | Diesel | 48.7% | 3,201 |
| SPORTAGE | 2005 | Petrol | 46.1% | 577 |
| CARENS | 2007 | Diesel | 47.0% | 523 |
| VENGA | 2010 | Diesel | 51.0% | 1,287 |
Pattern to avoid
Early 2011-2013 diesel RIOs, 2007-2011 diesel CEEDs, 2010-2012 diesel VENGAs are the models that drag down Kia's average. The CARENS performs 18% worse than the average car of the same age at 18-20 years - this is proven poor durability. These vehicles fail MOTs more often than they pass.
What Goes Wrong on Kias?
When Kias fail MOTs, these are the most common causes:
| Failure Category | Total Failures |
|---|---|
| 1. Lamps, reflectors and electrical equipment | 74,101 |
| 2. Brakes | 70,781 |
| 3. Tyres | 56,196 |
| 4. Suspension | 53,463 |
| 5. Visibility | 46,794 |
| 6. Steering | 24,515 |
| 7. Body, chassis, structure | 15,786 |
Pre-MOT checklist for Kia owners:
- Check all bulbs (number plate lights are commonly missed)
- Check brake pad thickness and disc condition
- Ensure tyres meet 1.6mm tread requirement
- Inspect suspension bushes and anti-roll bar links
- Clean windscreen and check wiper blade condition
Frequently Asked Questions
Our Buying Recommendations
Best If Buying Nearly New
2019-2023 models with highest early pass rates
- SOUL FIRST EDITION EV 2020 Electric: 93% pass rate
- PICANTO ZEST 2020 Petrol: 93% pass rate
- PICANTO X-LINE S AUTO 2019 Petrol: 91% pass rate
- STONIC 2020 Petrol: 92% pass rate
Note: Long-term durability not yet proven for these newer models
Best If Buying Used (Proven)
11+ years of proven durability data
- Limited proven durability data available
Kia Models to Avoid (Proven Poor)
Proven below average at 11+ years - not just old, genuinely problematic
- CARENS (18-20 years): -10% vs same-age (proven poor at 11+ years) (Below average at 18-20 years)
- PROCEED (11-14 years): -10% vs same-age (proven poor at 11+ years) (Below average at 11-14 years)
- CEED (11-14 years): -7% vs same-age (proven poor at 11+ years) (Below average at 11-14 years)
- SPORTAGE (18-20 years): -5% vs same-age (proven poor at 11+ years) (Below average at 18-20 years)
About This Data
This analysis uses real MOT test results from the DVSA database, covering 886,268 tests on Kia vehicles between 2000 and 2023.
Year-Adjusted Scoring (v2.1): In year-by-year breakdowns, each vehicle is compared against the national average for vehicles of the same model year. This removes the natural bias where newer cars pass more often, allowing fair comparisons across eras.
Evidence-Tiered Durability: We separate "proven durability" (vehicles tested at 11+ years old) from "early performers" (3-6 years old). Only vehicles with proven long-term data are used for durability claims. Age-band comparisons use weighted national averages.
Minimum thresholds: 100 tests for proven durability rankings, 100 tests for early performer rankings. Pass rates are calculated as first-time passes, excluding retests.
The overall national average MOT pass rate is 71.44% based on 32,300,000 tests across all manufacturers. Year-specific averages range from ~59% (2009 vehicles) to ~88% (2020 vehicles).
Check Any Vehicle's MOT History
Get the full MOT history, mileage records, and reliability insights for any UK vehicle. Make an informed decision before you buy.
Run a Free Check