Performance by cohort

3 year bands · 7,892 tests

Pass rate is broadly flat across the cohorts — new and old Allied examples track each other at the test bay.

Pre-2018 cohort 1,571

Pass

79.1%

Fail

17.9%

PRS

2.5%

Avg mileage at test

73,454 mi

2018–2020 cohort 5,541

Pass

80.2%

Fail

13.8%

PRS

5.1%

Avg mileage at test

44,116 mi

2021+ cohort 780

Pass

78.3%

Fail

16.4%

PRS

4.2%

Avg mileage at test

24,219 mi

Cohort = vehicle's first-registration year band. Same model, different generations of build.

The picture

Allied: above-average pass rates, with caveats

Across 4,319 MOT tests, the Allied returns 82.3% first-time pass — above the UK fleet average. The single most-logged Major fail is wipers that don't clear the screen. Windscreen damage and worn suspension bushes round out the top three. Average tested mileage sits at 43,364, 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

Group 10–28

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 →

10–28

out of 50

Compare quotes →

Top ten reasons for rejection.

Filter failures:

Hide wear items to see the model's real defects.

01

Wiper blade missing or obviously not clearing the windscreen

204 occurrences · 2.6% of tests
02

Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view

182 occurrences · 2.3% of tests
03

Wiper blade defective

120 occurrences · 1.5% of tests
04

A suspension pin, bush or joint excessively worn

109 occurrences · 1.4% of tests
05

A tyre seriously damaged

95 occurrences · 1.2% of tests
06

a brake lining or pad worn below 1.5mm

93 occurrences · 1.2% of tests
07

A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources

86 occurrences · 1.1% of tests
08

A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc

76 occurrences · 1.0% of tests
09

A transmission shaft constant velocity joint boot severely deteriorated

66 occurrences · 0.8% of tests
10

Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning

59 occurrences · 0.7% 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–£330

If every one of this Allied'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

Best year to buy. Worst to avoid.

First-time MOT pass rate split by registration band. A 1.9-point gap between bands is modest — the year you buy Ford Allied makes a small but real difference to MOT outcomes.

Best band to buy

80.2%

2018–2020 registration

the 2018–2020 band climbs to 80.2% — a 1.9-point improvement. Failures here are mostly wear items: does not clear the windscreen effectively, damaged but not adversely affecting driver's view — the structural issues that drag down older examples don't appear in the top-10 for this band.

Band to be cautious about

78.3%

2021+ registration

On the 2021-on band, the data shows a 78.3% pass rate against a fleet average of 80.2% on the newer band. The main culprits logged at test: malfunctioning or obviously inoperative, does not clear the windscreen effectively, and blade defective. Average mileage on test for this band is 24,219 miles — high-mileage wear items are a recurring theme.

Best band to buy: 2018-2020 (80.2% first-time pass). Worst band to avoid: 2021+ (78.3% pass). That's a 1.9-point spread across 780 older tests and 5,541 newer ones — year of build makes a material difference on this model.

Year-spread leaderboard →

Tools that pre-empt a retest.

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

My Motor World · affiliate

Parts & supplies for this fix

Affiliate links — small commission, no extra cost to you.

Summit

Summit ADRG-18 Ford Replacement Stick-On Tinted Mirror Glass LHS

£8.79

View at My Motor World →

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

Book a mobile mechanic

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.

Get a quote →

Buying or keeping an Allied?

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 an Allied 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.