2021 Kia Sportage Gt-Line S Isg — MOT failures & pass rate
Across 676 MOT tests analysed for the 2021 Kia Sportage Gt-Line S Isg, the most common recorded failure areas were tyres, visibility and lighting & signalling. Its pass rate of 91.3% was in line with the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 4.9% | 33 |
| 2 | Visibility | 3.7% | 25 |
| 3 | Lighting & signalling | 1.8% | 12 |
| 4 | Brakes | 1.5% | 10 |
| 5 | Suspension | 0.9% | 6 |
| 6 | Steering | 0.7% | 5 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 31 |
| 2 | Tread depth | 27 |
| 3 | Headlamp aim | 17 |
| 4 | Brake pads | 9 |
| 5 | Track rod end | 7 |
| 6 | Pins and bushes | 7 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 20.7% | 140 |
| 2 | Brakes | 12.3% | 83 |
| 3 | Other defects | 8.0% | 54 |
| 4 | Suspension | 4.0% | 27 |
| 5 | Steering | 3.4% | 23 |
| 6 | Visibility | 2.5% | 17 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 429 | 7.5% |
| 30-60k | 228 | 10.5% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 323 | 7.4% |
| 2025 | 336 | 9.5% |
What to check before buying a 2021 Sportage Gt-Line S Isg
Before buying a 2021 Kia Sportage Gt-Line S Isg, focus on the areas it most often fails on. Tyres accounted for 4.9% of tests for this year.
- Tyres (4.9% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Visibility (3.7% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
- Lighting & signalling (1.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2021 Kia Sportage Gt-Line S Isgs pass their MOT?
91.3% of the 676 2021 Kia Sportage Gt-Line S Isg MOT tests in this dataset passed — a 8.7% fail rate.
What is the most common MOT failure on a 2021 Kia Sportage Gt-Line S Isg?
Tyres, recorded in 4.9% of tests, followed by visibility (3.7%).
Does the 2021 Sportage Gt-Line S Isg get worse with mileage?
Its MOT fail rate rises from 7.5% in the 0-30k band to 10.5% in the 30-60k band.
Methodology & source. Based on 676 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.