74.5%
Mitsubishi Asx
Mitsubishi Asx MOT pass rate and common problems
The Mitsubishi Asx passed 74.5% of its initial MOT tests in 2025, 2.2 percentage points above the 72.3% UK average. The item testers recorded most often was rigid brake pipes excessively corroded.
Checking a specific car? Its own results, advisories and recorded mileages are in a free MOT history check.
How the Asx compares
Initial MOT tests in 2025, retests excluded. A car that failed and was repaired at the test station counts as a fail.
71.3%
Mitsubishi average
72.3%
UK average, all cars
The Asx runs 3.3 points ahead of the Mitsubishi average. It is 4th of the 9 Mitsubishi models in the data. The average Asx arrived at its test 9.8 years old with 76,492 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.
Asx MOT pass rate by age
The same 2025 tests split by the car's age at test.
Mitsubishi Asx cars aged 3 to 5 years passed 90.4% of MOT tests. For cars aged 11 years and over that fell to 64.6%, a drop of 25.8 percentage points.
| Age at test | Tests | Pass rate | vs UK average |
|---|---|---|---|
| 3 to 5 years | 3,075 | 90.4% | 18.1 pts above |
| 6 to 10 years | 16,342 | 77.2% | 4.9 pts above |
| 11 years and over | 9,316 | 64.6% | 7.7 pts below |
That is a steep decline with age, so the headline rate flatters older examples. The UK average of 72.3% covers cars of every age, so compare like with like.
Where Asx failures cluster
Every failure item recorded on Mitsubishi Asx cars in 2025, grouped into the DVSA's test areas.
Brakes and suspension together account for 50.4% of recorded failure items. These are recorded failures across the model, not faults every car has.
The 10 most common Asx MOT failures
Specific items recorded on Mitsubishi Asx cars that failed their 2025 MOT, as a share of all recorded failure items.
Together these 10 items make up 43.4% of everything testers recorded against failed Mitsubishi Asx cars. The rest is spread across many smaller items, and one failed test often records several at once.
What to look at on a Asx
The recorded failures above, grouped by area, biggest first.
1
Brakes
Recorded most often: rigid brake pipes excessively corroded, brake pads less than 1.5 mm thick and rbt (sp) efficiency below requirements. 16.5% of failure items.
2
Suspension
Recorded most often: ball joint excessively worn, linkage ball joint dust cover ball joint dust cover no longer prevents the ingress of dirt and linkage ball joints ball joint excessively worn. 9.3% of failure items.
3
Tyres
Recorded most often: tread depth below requirements of 1.6mm. 5.1% of failure items.
4
Lamps, reflectors and electrical equipment
Recorded most often: position lamp not working. 4.8% of failure items.
The car's own MOT history matters more than any model average. A free MOT history check shows whether a specific Asx has failed on these items before, or had them noted as advisories. Buying one? See the used Mitsubishi Asx buying guide.
Already found one?
Check its finance, write-off, theft, mileage and keeper history with a £15 vehicle history report.
Mitsubishi Asx MOT FAQs
What is the Mitsubishi Asx MOT pass rate?
74.5% of Mitsubishi Asx cars passed their initial MOT first time in 2025, from 28,733 tests. That is 2.2 percentage points above the 72.3% average for all cars, and ranks 273rd of 575 models.
What does a Mitsubishi Asx most commonly fail its MOT on?
The item testers recorded most often on Mitsubishi Asx cars failing their 2025 MOT was rigid brake pipes excessively corroded, on 6.9% of failure items. Next were brake pads less than 1.5 mm thick (6.2%) and tread depth below requirements of 1.6mm (5.1%).
Which area causes the most Mitsubishi Asx MOT failures?
Across every recorded failure item, the largest area was brakes at 29.7%, followed by suspension at 20.7%.
Do older Mitsubishi Asx cars fail their MOT more often?
Mitsubishi Asx cars aged 3 to 5 years passed 90.4% of MOT tests in 2025, against 64.6% for cars aged 11 years and over.
Does this mean every Mitsubishi Asx has these problems?
No. These are the items testers recorded across every Mitsubishi Asx 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 Mitsubishi Asx'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.