Kia
3,965 MOT tests analysed. sits above the UK fleet average — here's where Ceed GT Line Isgs pass, fail, and end up on the retest sheet.
That's 9.5 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
87.0%
Pass-after-fix
2.7%
Fail
9.9%
Avg miles
30,833
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 · 3,965 tests
Pass rate is broadly flat across the cohorts — new and old Ceed GT Line Isg examples track each other at the test bay.
Pass
86.6%
Fail
10.6%
PRS
2.4%
Avg mileage at test
35,115 mi
Pass
87.6%
Fail
8.8%
PRS
3.0%
Avg mileage at test
24,518 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 1,485 MOT tests, the Ceed Gt-Line Isg returns 87.4% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is tyre tread under the limit. Wipers that don't clear the screen and a defective wiper blade round out the top three. Average tested mileage sits at 27,955, 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.
ABI Insurance Group
Below the fleet average — generally reasonable to insure. Lower groups cost less to insure; UK fleet average is around Group 22.
Source: ABI Group Rating Panel · administered by Thatcham Research · groups cover standard variants; performance trims may sit higher. Browse all insurance groups →
9–22
out of 50
Filter failures:
Hide categories
Tick a category to hide it from rankings sitewide. Saved in this browser only.
Tyre tread depth not in accordance with the requirements
94 occurrences · 2.4% of tests
Wiper blade missing or obviously not clearing the windscreen
86 occurrences · 2.2% of tests
Wiper blade defective
66 occurrences · 1.7% of tests
A tyre seriously damaged
43 occurrences · 1.1% of tests
a brake lining or pad worn below 1.5mm
39 occurrences · 1.0% of tests
A tyre cords visible or damaged
30 occurrences · 0.8% of tests
A tyre seriously damaged
20 occurrences · 0.5% of tests
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
18 occurrences · 0.5% of tests
A suspension pin, bush or joint excessively worn
16 occurrences · 0.4% of tests
Brake disc or drum significantly and obviously worn
11 occurrences · 0.3% 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 4 failures
£180–£345
If every one of this Ceed GT Line Isg'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 →
Try the calculator
Build your own retest budget.
Year-band analysis
First-time MOT pass rate split by registration band. Pass rates barely move across bands here, so the year you buy Kia Ceed GT Line Isg makes little measurable difference to MOT outcomes.
Best band to buy
87.6%
2021+ registration
the 2021-on band climbs to 87.6% — a 1.0-point improvement. Tests in this band average 24,518 miles — roughly 11K miles fewer on the clock than the older band. Failures here are mostly wear items: does not clear the windscreen effectively, blade defective — 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
86.6%
2018–2020 registration
On the 2018–2020 band, the data shows a 86.6% pass rate against a fleet average of 87.6% on the newer band. The main culprits logged at test: tread depth below requirements of 1.6mm, does not clear the windscreen effectively, and blade defective. Average mileage on test for this band is 35,115 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2021+ (87.6% first-time pass). Worst band to avoid: 2018-2020 (86.6% pass). That's a 1.0-point spread across 2,361 older tests and 1,604 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
Item 03 · Amazon UK
Brake pad measurement gauge
Testers fail pads under 1.5mm. A wear gauge tells you if you've got two months left or two weeks.
Search Amazon UK
My Motor World · affiliate
Affiliate links — small commission, no extra cost to you.
Hycote
Hycote Touch Up Colour Paint Brush Kia Titanium Silver Metallic 12.5ml
£6.59
View at My Motor World →
Hycote
Hycote Touch Up Colour Paint Brush Kia White 12.5ml
£6.59
View at My Motor World →
Hycote
Hycote Kia Clear White Double Acrylic Spray Paint 150ml
£6.59
View at My Motor World →
Hycote
Hycote Kia Titanium Silver Metallic Double Acrylic Spray Paint 150ml
£6.59
View at My Motor World →
Click Mechanic · affiliate
Affiliate links — small commission, no extra cost to you.
Mobile mechanic · UK-wide
Book a mechanic at your door.
Fixed-price quotes upfront. No garage needed. Click Mechanic sends a vetted local mechanic to you — home, work, or roadside.
Owner reports · Honest John
Verbatim faults logged by owners on honestjohn.co.uk over recent years. We didn't summarise — these are the words people typed in.
Where it falls short
Owner reports include: Report of 2018 Kia Ceed 1.4 T First Edition starting to stutter under hard acceleration (eg joining a motorway from a se.
Report of 2018 Kia Ceed 1.4 T First Edition starting to stutter under hard acceleration (eg joining a motorway from a service area). Felt like a fuel blockage (car run solely on BP Ultimate). Kia Preston took it in and performed a forced regeneration while owner waited. Car now working fine. * Terms and Conditions * Privacy * Cookies * Advertise on this site * Contact * Mobile) Website of the Year 2016, 2017 & 2018
Source: honestjohn.co.uk · 1 reports indexed
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 Ceed GT Line Isg 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.
