Fiat
5,435 MOT tests analysed. sits above the UK fleet average — here's where Fullbacks pass, fail, and end up on the retest sheet.
That's 6.0 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
83.5%
Pass-after-fix
4.8%
Fail
11.2%
Avg miles
73,069
Pass + Pass-after-fix + Fail = 100%
Diesel cars registered from September 2015 generally meet Euro 6 — compliant in London ULEZ, Birmingham CAZ, Bristol CAZ, and Glasgow LEZ.
Performance by cohort
2 year bands · 5,435 tests
Pass rate is broadly flat across the cohorts — new and old Fullback examples track each other at the test bay.
Pass
83.3%
Fail
11.2%
PRS
5.0%
Avg mileage at test
76,899 mi
Pass
83.9%
Fail
11.1%
PRS
4.5%
Avg mileage at test
65,936 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 3,296 MOT tests, the Fullback returns 83.8% first-time pass — above the UK fleet average. The single most-logged Major fail is brake pads worn below 1.5 mm. Windscreen damage and tyre tread under the limit round out the top three. Average tested mileage sits at 62,453, 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
Above average — worth comparing quotes before buying. 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 →
26–34
out of 50
Filter failures:
Hide categories
Tick a category to hide it from rankings sitewide. Saved in this browser only.
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
190 occurrences · 3.5% of tests
a brake lining or pad worn below 1.5mm
130 occurrences · 2.4% of tests
Brake pipe damaged or excessively corroded
128 occurrences · 2.4% of tests
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
92 occurrences · 1.7% of tests
Tyre tread depth not in accordance with the requirements
78 occurrences · 1.4% of tests
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
53 occurrences · 1.0% of tests
A battery insecure but not likely to fall from carrier
38 occurrences · 0.7% of tests
A suspension pin, bush or joint excessively worn
37 occurrences · 0.7% of tests
Wiper blade defective
34 occurrences · 0.6% of tests
A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps
33 occurrences · 0.6% 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
£188–£380
If every one of this Fullback'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 Fiat Fullback makes little measurable difference to MOT outcomes.
Best band to buy
83.9%
2018–2020 registration
the 2018–2020 band climbs to 83.9% — a 0.6-point improvement. Tests in this band average 65,936 miles — roughly 11K miles fewer on the clock than the older band. Failures here are mostly wear items: damaged but not adversely affecting driver's view, less than 1.5 mm thick — the structural issues that drag down older examples don't appear in the top-10 for this band. The stricter post-2018 MOT test rules meant manufacturers had to tighten up emissions and electrical checks, but this band still shows far fewer major failures on suspension and bodywork than the older fleet.
Band to be cautious about
83.3%
Pre-2018 registration
On the older band (pre-2018), the data shows a 83.3% pass rate against a fleet average of 83.9% on the newer band. The main culprits logged at test: damaged but not adversely affecting driver's view, excessively corroded, and less than 1.5 mm thick. Average mileage on test for this band is 76,899 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2018-2020 (83.9% first-time pass). Worst band to avoid: pre-2018 (83.3% pass). That's a 0.6-point spread across 3,538 older tests and 1,897 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
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
Item 02 · Amazon UK
H7 / W21W bulb pack
A spare-bulb kit lives in the boot. Test morning is not the time to find your stop-lamp's gone.
Search Amazon UK
Item 03 · 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
My Motor World · affiliate
Affiliate links — small commission, no extra cost to you.
Hycote
Hycote Touch Up Colour Paint Brush Fiat Broom Yellow 12.5ml
£6.59
View at My Motor World →
Hycote
Hycote Fiat Capri Blue Double Acrylic Spray Paint 150ml
£6.59
View at My Motor World →
Hycote
Hycote Fiat Black Double Acrylic Spray Paint 150ml
£6.59
View at My Motor World →
Hycote
Hycote Fiat Red Orange 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.
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 Fullback 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.
