Kia
1,268 MOT tests analysed. sits above the UK fleet average — here's where Proceed GT Line S Isg S As pass, fail, and end up on the retest sheet.
That's 9.1 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
86.6%
Pass-after-fix
2.4%
Fail
10.7%
Avg miles
32,611
Pass + Pass-after-fix + Fail = 100%
Petrol cars first registered from January 2006 meet Euro 4 — compliant in London ULEZ, Birmingham CAZ, Bristol CAZ, and Glasgow LEZ.
Performance by cohort
2 year bands · 1,268 tests
Pass rate climbs 1.0 points across the cohorts — newer Proceed GT Line S Isg S A examples clear the test more reliably than the early cars.
Pass
86.2%
Fail
11.4%
PRS
2.1%
Avg mileage at test
37,178 mi
Pass
87.3%
Fail
9.4%
PRS
2.9%
Avg mileage at test
24,184 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 1,268 MOT tests, the Proceed Gt-Line S Isg S-A returns 86.6% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is a tyre with the cords showing. A seriously damaged tyre and a seriously damaged tyre round out the top three. Average tested mileage sits at 32,611, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
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A tyre cords visible or damaged
32 occurrences · 2.5% of tests
A tyre seriously damaged
25 occurrences · 2.0% of tests
A tyre seriously damaged
19 occurrences · 1.5% of tests
Wiper blade defective
17 occurrences · 1.3% of tests
Tyre tread depth not in accordance with the requirements
16 occurrences · 1.3% of tests
Wiper blade missing or obviously not clearing the windscreen
15 occurrences · 1.2% of tests
A tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber
12 occurrences · 0.9% of tests
a brake lining or pad worn below 1.5mm
10 occurrences · 0.8% of tests
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
7 occurrences · 0.6% of tests
Brake lining or pad worn down to wear indicator
6 occurrences · 0.5% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 3 failures
£140–£235
If every one of this Proceed GT Line S Isg S A's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
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Build your own retest budget.
Year-band analysis
First-time MOT pass rate split by registration band. A 1.0-point gap between bands is modest — the year you buy Kia Proceed GT Line S Isg S A makes a small but real difference to MOT outcomes.
Best band to buy
87.3%
2021+ registration
the 2021-on band climbs to 87.3% — a 1.0-point improvement. Tests in this band average 24,184 miles — roughly 13K miles fewer on the clock than the older band. Failures here are mostly wear items: has ply or cords exposed, does not clear the windscreen effectively — the structural issues that drag down older examples don't appear in the top-10 for this band. Post-2020 examples are early in their MOT life and generally show the cleanest records.
Band to be cautious about
86.2%
2018–2020 registration
On the 2018–2020 band, the data shows a 86.2% pass rate against a fleet average of 87.3% on the newer band. The main culprits logged at test: has ply or cords exposed, has a cut in excess of the…, and tread depth below requirements of 1.6mm. Average mileage on test for this band is 37,178 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2021+ (87.3% first-time pass). Worst band to avoid: 2018-2020 (86.2% pass). That's a 1.0-point spread across 821 older tests and 447 newer ones — year of build makes a material difference on this model.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
Item 02 · Amazon UK
Bosch Aerotwin wiper blades
Cheap wipers fail the test on smear streaks. Bosch Aerotwins last a winter and clear a screen properly.
Search Amazon UK
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Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a Proceed GT Line S Isg S A and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.
