Performance by cohort

3 year bands · 3,010 tests

Pass rate climbs 18.0 points across the cohorts — newer Hymer examples clear the test more reliably than the early cars.

Pre-2018 cohort 2,385

Pass

72.8%

Fail

22.4%

PRS

4.2%

Avg mileage at test

78,063 mi

2018–2020 cohort 516

Pass

87.8%

Fail

7.8%

PRS

4.3%

Avg mileage at test

17,609 mi

2021+ cohort 109

Pass

90.8%

Fail

5.5%

PRS

2.8%

Avg mileage at test

11,578 mi

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

The picture

Hymer: middle-of-the-pack on first-time pass

Across 1,658 MOT tests, the Hymer returns 78.4% first-time pass — roughly in line with the UK fleet average. The single most-logged Major fail is headlamp aim out of spec. A split CV-joint boot and wipers that don't clear the screen round out the top three. Average tested mileage sits at 57,399, 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 4–22

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 →

4–22

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

101 occurrences · 3.4% of tests
02

A transmission shaft constant velocity joint boot severely deteriorated

78 occurrences · 2.6% of tests
03

The aim of a headlamp is not within limits laid down in the requirements

77 occurrences · 2.6% of tests
04

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

65 occurrences · 2.2% of tests
05

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

59 occurrences · 2.0% of tests
06

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

49 occurrences · 1.6% of tests
07

Parking brake efficiency below minimum requirement

44 occurrences · 1.5% of tests
08

A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED

41 occurrences · 1.4% of tests
09

Significant brake effort recorded with no brake applied indicating a binding brake

41 occurrences · 1.4% of tests
10

An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning

38 occurrences · 1.3% 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 3 failures

£38–£160

If every one of this Hymer'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 18.0-point gap between bands means the year you buy Fiat Hymer has a real effect on what turns up at the garage.

Best band to buy

90.8%

2021+ registration

the 2021-on band climbs to 90.8% — a 18.0-point improvement. Tests in this band average 11,578 miles — roughly 66K miles fewer on the clock than the older band. Failures here are mostly wear items: does not conform to the specified requirements, 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

72.8%

Pre-2018 registration

On the older band (pre-2018), the data shows a 72.8% pass rate against a fleet average of 90.8% on the newer band. The main culprits logged at test: does not clear the windscreen effectively, constant velocity boot severely deteriorated, and projected beam image is obviously incorrect. Average mileage on test for this band is 78,063 miles — high-mileage wear items are a recurring theme.

Best band to buy: 2021+ (90.8% first-time pass). Worst band to avoid: pre-2018 (72.8% pass). That's a 18.0-point spread across 2,385 older tests and 109 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

Item 02 · Amazon UK

Headlight restoration kit

Yellowed lenses fail the light-output test. A restoration kit lifts the haze in an afternoon for £20.

Search Amazon UK

Item 03 · 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

My Motor World · affiliate

Parts & supplies for this fix

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

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Hycote Fiat Red Orange Double Acrylic Spray Paint 150ml

£6.59

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.

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Buying or keeping a Hymer?

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 Hymer 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.