AI-generated reference image · MOTCost editorial
Ford
1,407 MOT tests analysed. sits above the UK fleet average — here's where Transit 350 Leader Ecoblue As pass, fail, and end up on the retest sheet.
That's 6.4 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
83.9%
Pass-after-fix
4.2%
Fail
11.2%
Avg miles
74,864
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 · 1,407 tests
Pass rate drops 5.0 points across the cohorts — recent Transit 350 Leader Ecoblue A examples are doing worse than the early cars at the same tested age.
Pass
87.8%
Fail
8.5%
PRS
3.0%
Avg mileage at test
85,556 mi
Pass
82.8%
Fail
12.0%
PRS
4.5%
Avg mileage at test
72,026 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 1,407 MOT tests, the Transit 350 Leader Ecoblue A returns 83.9% first-time pass — above the UK fleet average. The single most-logged Major fail is windscreen damage. A lamp out and a cosmetically defective lens round out the top three. Average tested mileage sits at 74,864, 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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Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
38 occurrences · 2.7% of tests
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
27 occurrences · 1.9% of tests
A lens defective which has no effect on emitted light
26 occurrences · 1.8% of tests
Lamp emitted colour, position or intensity not in accordance with the requirements
24 occurrences · 1.7% of tests
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
24 occurrences · 1.7% of tests
a brake lining or pad worn below 1.5mm
22 occurrences · 1.6% of tests
Wiper blade missing or obviously not clearing the windscreen
15 occurrences · 1.1% of tests
The aim of a headlamp is not within limits laid down in the requirements
13 occurrences · 0.9% of tests
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
12 occurrences · 0.9% of tests
Obligatory mirror or device slightly damaged or loose
12 occurrences · 0.9% 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.
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Year-band analysis
First-time MOT pass rate split by registration band. A 5.0-point gap between bands means the year you buy Ford Transit 350 Leader Ecoblue A has a real effect on what turns up at the garage.
Best band to buy
87.8%
2018–2020 registration
the 2018–2020 band climbs to 87.8% — a 5.0-point improvement. Failures here are mostly wear items: damaged but not adversely affecting driver's view, lens defective which has no effect on… — the structural issues that drag down older examples don't appear in the top-10 for this band.
Band to be cautious about
82.8%
2021+ registration
On the 2021-on band, the data shows a 82.8% pass rate against a fleet average of 87.8% on the newer band. The main culprits logged at test: not working, incorrect colour, and lens defective which has no effect on…. Average mileage on test for this band is 72,026 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2018-2020 (87.8% first-time pass). Worst band to avoid: 2021+ (82.8% pass). That's a 5.0-point spread across 1,112 older tests and 295 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.
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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 350 Leader Ecoblue 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.