Recorded in
0.6% 22% fail
of every MOT test in our data — 612,323 records across 903 models.
Body & chassis → Integral structure corroded
The Integral structure corroded MOT failure is recorded in 0.6% of all MOT tests in the DVSA data — 612,323 records across 903 models. A typical repair costs £180–£450. This page explains what the item means, how testers write it down, what a repair usually involves and Mazda Bongo records it most often for its size.
Advisory only
78%
were noted without failing the car.
Typical cost
£180–£450
Usually a garage job. Estimate, fitted where needed.
What Integral structure corroded means on an MOT
Integral structure corroded is an MOT inspection item in the body, chassis, structure section of the manual. The tester records it when they see the condition the description names — here, when integral structure corroded. Corrosion is judged on how much strength the affected part has left — surface rust alone does not fail, a weakened or holed part does. The failure is reported against that rule, so the page uses the tester's own wording.
How common is Integral structure corroded on an MOT?
Recorded in 0.6% of every MOT test in our data — 612,323 records across 903 models. That is 1% in every hundred tests, which puts Integral structure corroded in the middle of the items testers record.
Of the 612,323 records for this item, 22.1% of the records are a fail (Major or Dangerous) and 77.8% are advisories that did not fail the car.
Other things testers write about this item
Testers do not all write the same thing. These are the exact DVSA strings from the records for this item, each with how many tests it was written on — the page's keyword vocabulary comes straight from them.
- Coil spring corroded so that its cross sectional area is reduced and seriously weakened — 4,052,861 records
- Component mounting prescribed areas prescribed area excessively corroded significantly reducing structural strength — 1,251,313 records
- Chassis condition corroded to the extent that the rigidity of the assembly is significantly reduced — 510,995 records
- Sub-frame mounting prescribed areas prescribed area excessively corroded significantly reducing structural strength — 366,545 records
- Prescribed areas prescribed area strength or continuity significantly reduced — 276,712 records
- Sub-frame condition corroded to the extent that the rigidity of the assembly is significantly reduced — 165,866 records
- Door condition cannot be opened from outside the vehicle — 116,248 records
- Spring mounting prescribed areas prescribed area excessively corroded significantly reducing structural strength — 103,390 records
- Exhaust system noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition — 82,534 records
- Integral vehicle structure condition is deformed and structural rigidity is significantly reduced — 59,265 records
What does it cost to fix Integral structure corroded?
A typical repair on this item costs £180–£450 at UK prices, and it is usually a garage job. The bracket is our estimate from reported prices and parts, rather than a DVSA figure — see how it is built on the method page.
How the price brackets are built · full repair cost list · add it to your fail-sheet total.
Models that record Integral structure corroded most often
As a rate of each model's own tests, Mazda Bongo and Toyota Hiace lead the list: Mazda Bongo records it on 8.5% of its tests. The rate, not the volume, is what matters here — a model with 20,000 tests can outrank one with a million.
| # | Model | Rate | Tests | Detail |
|---|---|---|---|---|
| 1 | Mazda Bongo | 8.5% | 30,855 | 14.2× · year by year → |
| 2 | Toyota Hiace | 6.8% | 23,078 | — |
| 3 | Toyota Hi-Ace | 5.4% | 24,156 | — |
| 4 | Honda Fr-V | 5.0% | 27,466 | — |
| 5 | Jaguar X-Type | 4.9% | 93,223 | — |
| 6 | Mitsubishi Shogun | 4.8% | 105,518 | 8.0× · year by year → |
| 7 | Toyota Celica | 4.8% | 27,501 | — |
| 8 | Suzuki Jimny | 4.7% | 81,784 | 7.8× · year by year → |
| 9 | Citroen Xsara | 4.7% | 106,340 | 7.8× · year by year → |
| 10 | Fiat Scudo | 4.5% | 32,202 | — |
| 11 | Lexus IS200 | 4.4% | 20,777 | — |
| 12 | Ford Transit | 3.9% | 1,107,503 | 6.5× · year by year → |
| 13 | Rover 75 | 3.7% | 28,888 | — |
| 14 | Suzuki Grand Vitara | 3.6% | 77,753 | 6.0× · year by year → |
| 15 | Citroen C2 | 3.6% | 43,091 | — |
| 16 | Jaguar S-Type | 3.4% | 39,418 | — |
| 17 | Citroen Relay | 3.3% | 53,684 | 5.5× · year by year → |
| 18 | Toyota Land Cruiser | 3.2% | 42,858 | — |
| 19 | Fiat Ducato | 3.0% | 225,102 | 5.0× · year by year → |
| 20 | Daihatsu Sirion | 3.0% | 22,729 | — |
Which years of car record Integral structure corroded
| Year | Recorded in |
|---|---|
| 2010 | 0.8% |
| 2011 | 0.6% |
| 2012 | 0.3% |
| 2013 | 0.2% |
| 2014 | 0.1% |
| 2015 | 0.1% |
| 2016 | 0.0% |
| 2017 | 0.0% |
| 2018 | 0.0% |
| 2019 | 0.0% |
| 2020 | 0.0% |
| 2021 | 0.0% |
| 2022 | 0.0% |
These are rates by year of registration from 2010 to 2022, not year of test, so the curve mostly reflects age — a recent car has barely been to a test station. Compare models at the same age instead.
Frequently asked questions about Integral structure corroded
How common is Integral structure corroded on an MOT?
It is recorded in 0.6% of all MOT tests — 612,323 records across 903 models.
Does Integral structure corroded fail the MOT or just get an advisory?
22.1% of the records for it are a fail, 0.0% were fixed at the test, 0.0% are minor and 77.8% are advisories. In short, it is an advisory or minor most of the time rather than a fail.
Which cars record Integral structure corroded most often?
Mazda Bongo and Toyota Hiace head the list, at a rate of each model's own tests — Mazda Bongo records it on 8.5%. Only models with at least 20,000 recorded tests are shown.
How much does it cost to fix Integral structure corroded?
Typically £180–£450 fitted, and it is usually a garage job. That is an estimate from reported prices, not a DVSA figure.
All 83 common MOT failures → Repair cost list → Failed your MOT? What now →