2021 Kia Proceed Gt-Line Isg — MOT failures & pass rate
Across 1,633 MOT tests analysed for the 2021 Kia Proceed Gt-Line Isg, the most common recorded failure areas were tyres, visibility and brakes. Its pass rate of 89.5% was below the average for cars of a similar age (91.3%). Higher-mileage examples failed more often — 13.7% in the 60-90k group versus 8.4% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 5.0% | 81 |
| 2 | Visibility | 3.7% | 60 |
| 3 | Brakes | 3.2% | 52 |
| 4 | Lighting & signalling | 1.5% | 25 |
| 5 | Suspension | 0.8% | 13 |
| 6 | Emissions & environmental | 0.4% | 6 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 64 |
| 2 | Tread depth | 41 |
| 3 | Brake pads | 40 |
| 4 | Pins and bushes | 18 |
| 5 | Headlamp aim | 14 |
| 6 | Brake discs | 11 |
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 | 21.7% | 355 |
| 2 | Brakes | 17.3% | 283 |
| 3 | Suspension | 8.6% | 141 |
| 4 | Other defects | 5.8% | 95 |
| 5 | Visibility | 3.1% | 51 |
| 6 | Road wheels | 0.5% | 9 |
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 | 735 | 8.4% |
| 30-60k | 788 | 12.1% |
| 60-90k | 102 | 13.7% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 62 | 3.2% |
| 2024 | 773 | 10.3% |
| 2025 | 795 | 11.2% |
What to check before buying a 2021 Proceed Gt-Line Isg
Before buying a 2021 Kia Proceed Gt-Line Isg, focus on the areas it most often fails on. Tyres accounted for 5.0% of tests for this year.
- Tyres (5.0% 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.
- Brakes (3.2% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
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 Proceed Gt-Line Isgs pass their MOT?
89.5% of the 1,633 2021 Kia Proceed Gt-Line Isg MOT tests in this dataset passed — a 10.5% fail rate.
What is the most common MOT failure on a 2021 Kia Proceed Gt-Line Isg?
Tyres, recorded in 5.0% of tests, followed by visibility (3.7%).
Does the 2021 Proceed Gt-Line Isg get worse with mileage?
Its MOT fail rate rises from 8.4% in the 0-30k band to 13.7% in the 60-90k band.
Methodology & source. Based on 1,633 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.