MOT failure data · 2025
MG ZS MOT problems
Across every MG ZS that failed its 2025 MOT, the defect testers recorded most often was condition has a cut in excess of the requirements deep enough to reach the ply or cords, on 10.46% of failure items. The broadest problem area was brakes at 28.77%. These are recorded defects across the model, not a diagnosis of any one car.
Most common MG ZS MOT failures
| # | Recorded defect | Area | Share |
|---|---|---|---|
| 1 | Condition has a cut in excess of the requirements deep enough to reach the ply or cords | Tyres | 10.46% |
| 2 | Brake pads less than 1.5 mm thick | Brakes | 9.39% |
| 3 | Tread depth tread depth below requirements of 1.6mm | Tyres | 6.22% |
| 4 | Brake discs significantly and obviously worn | Brakes | 5.69% |
| 5 | Condition has ply or cords exposed | Tyres | 5.09% |
| 6 | Front fog lamps not working | Lamps, reflectors and electrical equipment | 4.56% |
| 7 | Headlamp not working on dipped beam | Lamps, reflectors and electrical equipment | 4.38% |
| 8 | Coil spring fractured or broken | Suspension | 4.05% |
| 9 | Wipers does not clear the windscreen effectively | Visibility | 3.99% |
| 10 | Headlamp not working on main beam | Lamps, reflectors and electrical equipment | 2.95% |
Shares are of all recorded failure items for this model, so they sum to less than 100% — a single failed test often records several defects, and the long tail below the top 10 is not shown.
What this means if you are buying one
Use it as a viewing checklist. If you are looking at a MG ZS, these are the areas worth inspecting and worth asking about — and worth reading the car's own MOT history for, since a defect that keeps reappearing as an advisory is a better signal than any model-wide average.
The MOT record also has hard limits: it does not check the engine, clutch or gearbox, and it says nothing about outstanding finance, insurance write-off history, stolen markers or whether the mileage is genuine. Our used MG ZS buying guide covers what to check beyond the MOT.
Checking a specific MG ZS?
Enter its registration for finance, write-off, stolen, mileage and keeper history.
Other MG models
- MG HS MOT problems
- MG 5 Exclusive MOT problems
- MG TF MOT problems
- MG MGF MOT problems
- MG 5 Excite MOT problems
- MG GS MOT problems
MG ZS MOT FAQs
What does a MG ZS most commonly fail its MOT on?
The single most recorded defect on MG ZS cars failing their 2025 MOT was "condition has a cut in excess of the requirements deep enough to reach the ply or cords", appearing on 10.46% of failure items.
Does this mean my MG ZS will fail?
No. This is what testers recorded across every MG ZS that failed in 2025. It shows where this model tends to need attention, not the condition of any individual car. The MG ZS passed 85.53% of its initial tests.
How do I see a specific MG ZS's MOT history?
Enter its registration on our free MOT history check to see that car's own test results, advisories and recorded mileages.
See also: MG ZS MOT pass rate · used MG ZS buying guide · free MOT history check
Defect counts from the DVSA MOT Anonymised test-item data for 2025 (class 4 initial tests, failure items only — advisories and minor defects excluded), licensed under the Open Government Licence v3.0.