Ford
4,638 MOT tests analysed. lands in the middle of the pack — here's where Transit Custom 340leader Eblues pass, fail, and end up on the retest sheet.
That's in line with the UK fleet average across our 1,984 tracked models.
Pass
77.6%
Pass-after-fix
5.1%
Fail
15.8%
Avg miles
67,588
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 · 4,638 tests
Pass rate climbs 2.0 points across the cohorts — newer Transit Custom 340leader Eblue examples clear the test more reliably than the early cars.
Pass
77.1%
Fail
16.8%
PRS
4.7%
Avg mileage at test
70,529 mi
Pass
79.1%
Fail
13.0%
PRS
6.2%
Avg mileage at test
59,298 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 2,443 MOT tests, the Transit Custom 340leader Eblue returns 79.3% first-time pass — roughly in line with the UK fleet average. The single most-logged Major fail is windscreen damage. Brake pads worn below 1.5 mm and wipers that don't clear the screen round out the top three. Average tested mileage sits at 55,408, 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
Around the UK fleet average for insurance cost. 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 →
18–32
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Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
175 occurrences · 3.8% of tests
Wiper blade missing or obviously not clearing the windscreen
159 occurrences · 3.4% of tests
a brake lining or pad worn below 1.5mm
141 occurrences · 3.0% of tests
A tyre seriously damaged
122 occurrences · 2.6% of tests
Wiper blade defective
88 occurrences · 1.9% of tests
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
78 occurrences · 1.7% of tests
A transmission shaft constant velocity joint boot severely deteriorated
45 occurrences · 1.0% of tests
Brake lining or pad worn down to wear indicator
42 occurrences · 0.9% of tests
A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc
40 occurrences · 0.9% of tests
Tyre tread depth not in accordance with the requirements
35 occurrences · 0.8% 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
£120–£250
If every one of this Transit Custom 340leader Eblue'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 2.0-point gap between bands is modest — the year you buy Ford Transit Custom 340leader Eblue makes a small but real difference to MOT outcomes.
Best band to buy
79.1%
2021+ registration
the 2021-on band climbs to 79.1% — a 2.0-point improvement. Tests in this band average 59,298 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, 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
77.1%
2018–2020 registration
On the 2018–2020 band, the data shows a 77.1% pass rate against a fleet average of 79.1% on the newer band. The main culprits logged at test: damaged but not adversely affecting driver's view, does not clear the windscreen effectively, and less than 1.5 mm thick. Average mileage on test for this band is 70,529 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2021+ (79.1% first-time pass). Worst band to avoid: 2018-2020 (77.1% pass). That's a 2.0-point spread across 3,419 older tests and 1,219 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
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 02 · 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.
Summit
Summit ADRG-18 Ford Replacement Stick-On Tinted Mirror Glass LHS
£8.79
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Summit
Summit ADRG-10 Ford Replacement Stick-On Tinted Mirror Glass RHS
£9.89
View at My Motor World →
Summit
Summit ADRG-47 Ford Replacement Stick-On Tinted Mirror Glass LHS
£9.89
View at My Motor World →
Summit
Summit ADRG-85 Ford Replacement Stick-On Tinted Mirror Glass RHS
£9.89
View at My Motor World →
Click Mechanic · affiliate
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Mobile mechanic · UK-wide
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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.
What's good
More refined and better to drive than most rivals. Punchy and efficient diesel engines. New interior technology from 2024.
Where it falls short
Other vans offer more overall load volume. Some rivals are fresher. Range-topping trim/engine combo expensive.
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 Transit Custom 340leader Eblue 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.
