Morgan 4/4 MOT pass rate and common problems

The Morgan 4/4 passed 86.3% of its initial MOT tests in 2025, 14 percentage points above the 72.3% UK average. The item testers recorded most often was service brake imbalance across an axle.

Checking a specific car? Its own results, advisories and recorded mileages are in a free MOT history check.

How the 4/4 compares

Initial MOT tests in 2025, retests excluded. A car that failed and was repaired at the test station counts as a fail.

86.3%

Morgan 4/4

88%

Morgan average

72.3%

UK average, all cars

The 4/4 runs 1.7 points behind the Morgan average. The average 4/4 arrived at its test 25.7 years old with 32,682 miles recorded.

A pass rate records whether cars met the roadworthiness standard on test day. It is not a reliability score, and part of any gap reflects how old the tested cars were.

4/4 MOT pass rate by age

The same 2025 tests split by the car's age at test.

Morgan 4/4 cars aged 6 to 10 years passed 92.2% of MOT tests. For cars aged 11 years and over that fell to 85.7%, a drop of 6.5 percentage points.

Age at testTestsPass ratevs UK average
6 to 10 years 179 92.2% 19.9 pts above
11 years and over 1,728 85.7% 13.4 pts above

That is a typical decline as cars age. The UK average of 72.3% covers cars of every age, so compare like with like.

Where 4/4 failures cluster

Every failure item recorded on Morgan 4/4 cars in 2025, grouped into the DVSA's test areas.

  • Lamps, reflectors and electrical equipment30.2%
  • Brakes28.9%
  • Visibility10.7%
  • Noise, emissions and leaks10.1%
  • Steering5.4%
  • Suspension5.4%

Lamps, reflectors and electrical equipment and brakes together account for 59.1% of recorded failure items. These are recorded failures across the model, not faults every car has.

The 10 most common 4/4 MOT failures

Specific items recorded on Morgan 4/4 cars that failed their 2025 MOT, as a share of all recorded failure items.

  1. 1Service brake imbalance across an axleBrakes 6.3%
  2. 2Service brake performance excessively bindingBrakes 5.5%
  3. 3Rear fog lamp not workingLamps, reflectors and electrical equipment 5.5%
  4. 4Washers not workingVisibility 4.2%
  5. 5Headlamp aim too highLamps, reflectors and electrical equipment 3.8%
  6. 6Washers provides insufficient washer liquidVisibility 3.6%
  7. 7Position lamp not workingLamps, reflectors and electrical equipment 3.1%
  8. 8Service brake performance efficiency below requirementsBrakes 2.7%
  9. 9Steering rack gaiter missing or no longer prevents the ingress of dirtSteering 2.7%
  10. 10Pedal anti-slip provision missingBrakes 2.5%

Together these 10 items make up 40% of everything testers recorded against failed Morgan 4/4 cars. The rest is spread across many smaller items, and one failed test often records several at once.

What to look at on a 4/4

The recorded failures above, grouped by area, biggest first.

1

Brakes

Recorded most often: service brake imbalance across an axle, service brake performance excessively binding, service brake performance efficiency below requirements and pedal anti-slip provision missing. 17% of failure items.

2

Lamps, reflectors and electrical equipment

Recorded most often: rear fog lamp not working, headlamp aim too high and position lamp not working. 12.4% of failure items.

3

Visibility

Recorded most often: washers not working and washers provides insufficient washer liquid. 7.8% of failure items.

4

Steering

Recorded most often: steering rack gaiter missing or no longer prevents the ingress of dirt. 2.7% of failure items.

The car's own MOT history matters more than any model average. A free MOT history check shows whether a specific 4/4 has failed on these items before, or had them noted as advisories. Buying one? See the used Morgan 4/4 buying guide.

Already found one?

Check its finance, write-off, theft, mileage and keeper history with a £15 vehicle history report.

Morgan 4/4 MOT FAQs

What is the Morgan 4/4 MOT pass rate?

86.3% of Morgan 4/4 cars passed their initial MOT first time in 2025, from 1,907 tests. That is 14 percentage points above the 72.3% average for all cars, and ranks 100th of 575 models.

What does a Morgan 4/4 most commonly fail its MOT on?

The item testers recorded most often on Morgan 4/4 cars failing their 2025 MOT was service brake imbalance across an axle, on 6.3% of failure items. Next were service brake performance excessively binding (5.5%) and rear fog lamp not working (5.5%).

Which area causes the most Morgan 4/4 MOT failures?

Across every recorded failure item, the largest area was lamps, reflectors and electrical equipment at 30.2%, followed by brakes at 28.9%.

Do older Morgan 4/4 cars fail their MOT more often?

Morgan 4/4 cars aged 6 to 10 years passed 92.2% of MOT tests in 2025, against 85.7% for cars aged 11 years and over.

Does this mean every Morgan 4/4 has these problems?

No. These are the items testers recorded across every Morgan 4/4 that failed in 2025. They show where the model most often needs attention, not the condition of any individual car.

How do I see a specific Morgan 4/4's MOT history?

Enter its registration on the free Carpeep MOT history check to see that car's own test results, failures, advisories and recorded mileages.

MOT figures are aggregated from the DVSA MOT Anonymised data set for 2025: class 4 initial tests, retests excluded, with failure items from failed tests (advisories and minor defects excluded), licensed under the Open Government Licence v3.0. MOT results describe roadworthiness at test, not mechanical reliability.