Morgan Plus Four
From 274 MOT tests. Above average for its class.
Common MOT failure categories
What goes wrong?
The most common MOT failure reasons are parking brake efficiency below minimum requirement, parking brake inoperative on one side and lambda coefficient outside the default limits or the range specified by the manufacturer. The top issue, parking brake efficiency below minimum requirement, caused 8 failures in 2024. Checking tread depth (1.6mm legal minimum, 3mm recommended) before your test can save an unnecessary fail. You can check prices at Black Circles if you need replacements. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| parking brake efficiency below minimum requirement | 8 |
| parking brake inoperative on one side | 5 |
| lambda coefficient outside the default limits or the range specified by the manufacturer | 5 |
| parking brake efficiency less than 50% of the required value | 4 |
| a tyre seriously damaged | 3 |
| 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 | 3 |
| audible warning inoperative | 2 |
| a headlamp or light source missing, inoperative or more than ½ not functioning in the case of led | 1 |
| windscreen washers not working or not providing sufficient fluid to clear the windscreen | 1 |
| brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle. | 1 |
Typical mileage
Half of all Plus Fours tested had between 5,673 and 22,369 miles on the clock. Relatively low mileage overall. Many are still fairly young.
At 13,098 median miles, the Plus Four has 0.076 failures per 10,000 miles driven.
Other Morgan models
| Morgan 4/4 | 87.6% |
| Morgan Plus 4 | 90.5% |
| Morgan Plus 8 | 89.3% |
Common questions
What is the Morgan Plus Four MOT pass rate?
The Morgan Plus Four has a 90.1% MOT pass rate based on 274 real MOT tests. This is above the national average.
What are common MOT failures on a Morgan Plus Four?
The most common MOT failure on the Morgan Plus Four is parking brake efficiency below minimum requirement, which caused 8 failures. Other common issues include parking brake inoperative on one side.
What is the typical mileage of a Morgan Plus Four at MOT?
The median mileage at MOT for a Morgan Plus Four is 13,098 miles. The middle 50% of vehicles tested have between 5,673 and 22,369 miles.
Buying a used Plus Four?
Start with the free tools. Look up the specific vehicle's MOT history on GOV.UK The mileage at each test will show if it's been wound back, and the advisory history tells you what's wearing. Cross-reference that against the typical failures above to see if anything looks unusual for this model.
The free data won't tell you about outstanding finance, theft markers, or write-off history. For that, you need a vehicle history check This is especially important on a private sale where you have fewer legal protections.
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MOT data from DVSA anonymised test results, 2024 test year. Fleet data from DfT vehicle licensing statistics. Crown copyright, OGL v3.0. MOT pass rates are statistical summaries of test outcomes, not assessments of individual vehicle safety or condition. Always inspect a vehicle and check its full MOT history before purchasing. See terms of use.