MOT failures by make
Mitsubishi MOT failures for “Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength”
Mitsubishi cars failed their MOT on “Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength” in 1.15% of 600,306 tests in 2023–2024 (6,917 tests) — 1.6 times as often as comparable cars of the same age, mileage and fuel, which would have failed on it in about 0.73% of tests. It is the number 15 most common failure item on Mitsubishis.
Data to 2024-12-30 · Page updated 2026-09-28 · Publisher: 73 Auto
- Mitsubishi tests failing on it
- 1.15%
- 6,917 of 600,306 tests, 2023–2024
- Comparable cars
- 0.73%
- national rate at the same age, mileage and fuel
- Observed ÷ expected
- 1.59×
- 73 Auto analysis · rank #15 for Mitsubishi
How unusual this is for the make
Across all MOT failures, Mitsubishis fail 0% less often than comparable cars. On this item the gap is 1.60× wider than that overall level, so it is a genuine Mitsubishi pattern rather than a reflection of how often the make fails in general. It is a major defect in the suspension part of the test. Nationally it appears on 0.52% of MOT tests.
Mitsubishi models and “Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength”
The Mitsubishi Shogun is most affected (2.15× comparable cars); the Mitsubishi ASX least (0.58×). Not every model follows the make: the pattern is concentrated in some models. Model rows compare with cars of the same age and fuel.
| Model | Tests | Failed on it | vs similar cars |
|---|---|---|---|
| Mitsubishi Shogun | 66,822 | 4.00% | 2.15× |
| Mitsubishi Colt | 48,177 | 1.87% | 1.54× |
| Mitsubishi L200 | 180,711 | 0.95% | 1.18× |
| Mitsubishi Lancer | 20,993 | 1.18% | 0.90× |
| Mitsubishi Outlander | 155,926 | 0.10% | 0.80× |
| Mitsubishi ASX | 59,150 | 0.05% | 0.58× |
By age at test
The difference is largest at 5-6 years old: 0.01% of Mitsubishi tests against 0.00% for comparable cars.
| Age (years) | Mitsubishi tests | Mitsubishi | Comparable cars |
|---|---|---|---|
| 3-4 | 82,136 | 0.00% | 0.00% |
| 5-6 | 100,009 | 0.01% | 0.00% |
| 7-8 | 99,888 | 0.01% | 0.01% |
| 9-10 | 63,150 | 0.08% | 0.04% |
| 11-12 | 43,767 | 0.44% | 0.26% |
| 13-15 | 69,328 | 1.67% | 0.99% |
| 16+ | 125,314 | 4.39% | 2.81% |
Other Mitsubishi MOT faults that stand out
- Rear fog lamp: not working · 3.06× comparable cars
- Rigid brake pipes: excessively corroded · 2.57× comparable cars
- Exhaust system: has a major leak of exhaust gases · 1.64× comparable cars
Limitations
Official data: DVSA's anonymised MOT results (2023–2024), class 4 initial tests, cars at least 2.5 years old. 73 Auto analysis: the comparison rate applies the national rate of this item for each test's own age, mileage band and fuel to the Mitsubishi tests. An MOT result reflects maintenance, mileage and how a car is used as well as its design, so this is not a measure of which make is most reliable. The wording of the defect is DVSA's.
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Where these figures come from
- Anonymised MOT tests and results (2023 and 2024) — Driver and Vehicle Standards Agency (DVSA). Open Government Licence v3.0.
Figures labelled as 73 Auto estimates are our own analysis of these sources, set out in the methodology and data sources. To report a factual error, see corrections.