65%
MG ZT
MG ZT MOT pass rate and common problems
The MG ZT passed 65% of its initial MOT tests in 2025, 7.3 percentage points below the 72.3% UK average. The item testers recorded most often was component mounting prescribed areas prescribed area excessively corroded significantly reducing structural strength.
Checking a specific car? Its own results, advisories and recorded mileages are in a free MOT history check.
How the ZT compares
Initial MOT tests in 2025, retests excluded. A car that failed and was repaired at the test station counts as a fail.
80.9%
MG average
72.3%
UK average, all cars
The ZT runs 15.9 points behind the MG average. It is 11th of the 12 MG models in the data. The average ZT arrived at its test 21.2 years old with 111,287 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.
ZT MOT pass rate by age
The same 2025 tests split by the car's age at test.
| Age at test | Tests | Pass rate | vs UK average |
|---|---|---|---|
| 3 to 5 years (small sample) | 1 | 100% | 27.7 pts above |
| 11 years and over | 1,961 | 65% | 7.3 pts below |
Too few tests fall into some age groups to compare them reliably. The UK average of 72.3% covers cars of every age, so compare like with like.
Where ZT failures cluster
Every failure item recorded on MG ZT cars in 2025, grouped into the DVSA's test areas.
Suspension and brakes together account for 47% of recorded failure items. These are recorded failures across the model, not faults every car has.
The 10 most common ZT MOT failures
Specific items recorded on MG ZT cars that failed their 2025 MOT, as a share of all recorded failure items.
Together these 10 items make up 33.3% of everything testers recorded against failed MG ZT cars. The rest is spread across many smaller items, and one failed test often records several at once.
What to look at on a ZT
The recorded failures above, grouped by area, biggest first.
1
Suspension
Recorded most often: component mounting prescribed areas prescribed area excessively corroded significantly reducing structural strength, 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. 12.7% of failure items.
2
Brakes
Recorded most often: rbt (sp) efficiency below requirements and rigid brake pipes excessively corroded. 9% of failure items.
3
Seat belts and supplementary restraint systems
Recorded most often: srs malfunction indicator lamp warning lamp indicates a fault. 4.3% of failure items.
4
Lamps, reflectors and electrical equipment
Recorded most often: headlamp aim projected beam image is obviously incorrect. 3.1% of failure items.
The car's own MOT history matters more than any model average. A free MOT history check shows whether a specific ZT has failed on these items before, or had them noted as advisories. Buying one? See the used MG ZT buying guide.
Already found one?
Check its finance, write-off, theft, mileage and keeper history with a £15 vehicle history report.
MG ZT MOT FAQs
What is the MG ZT MOT pass rate?
65% of MG ZT cars passed their initial MOT first time in 2025, from 1,962 tests. That is 7.3 percentage points below the 72.3% average for all cars, and ranks 433rd of 575 models.
What does a MG ZT most commonly fail its MOT on?
The item testers recorded most often on MG ZT cars failing their 2025 MOT was component mounting prescribed areas prescribed area excessively corroded significantly reducing structural strength, on 4.9% of failure items. Next were rbt (sp) efficiency below requirements (4.7%) and rigid brake pipes excessively corroded (4.3%).
Which area causes the most MG ZT MOT failures?
Across every recorded failure item, the largest area was suspension at 25.1%, followed by brakes at 22%.
Does this mean every MG ZT has these problems?
No. These are the items testers recorded across every MG ZT 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 MG ZT'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.