73.1%
MG GS
MG GS MOT pass rate and common problems
The MG GS passed 73.1% of its initial MOT tests in 2025, 0.8 percentage points above the 72.3% UK average. The item testers recorded most often was headlamp aim too low.
Checking a specific car? Its own results, advisories and recorded mileages are in a free MOT history check.
How the GS 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 GS runs 7.8 points behind the MG average. It is 7th of the 12 MG models in the data. The average GS arrived at its test 7.6 years old with 54,877 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.
GS MOT pass rate by age
The same 2025 tests split by the car's age at test.
MG GS cars aged 3 to 5 years passed 73.9% of MOT tests. For cars aged 6 to 10 years that fell to 73.1%, a drop of 0.9 percentage points.
| Age at test | Tests | Pass rate | vs UK average |
|---|---|---|---|
| 3 to 5 years | 165 | 73.9% | 1.6 pts above |
| 6 to 10 years | 2,684 | 73.1% | 0.8 pts above |
That is a smaller decline than most cars show. The UK average of 72.3% covers cars of every age, so compare like with like.
Where GS failures cluster
Every failure item recorded on MG GS cars in 2025, grouped into the DVSA's test areas.
Lamps, reflectors and electrical equipment and brakes together account for 53.3% of recorded failure items. These are recorded failures across the model, not faults every car has.
The 10 most common GS MOT failures
Specific items recorded on MG GS cars that failed their 2025 MOT, as a share of all recorded failure items.
Together these 10 items make up 55.5% of everything testers recorded against failed MG GS cars. The rest is spread across many smaller items, and one failed test often records several at once.
What to look at on a GS
The recorded failures above, grouped by area, biggest first.
1
Brakes
Recorded most often: brake pads less than 1.5 mm thick, anti-lock braking system warning lamp indicates an abs fault and electronic stability control warning lamp indicates a fault. 15.5% of failure items.
2
Lamps, reflectors and electrical equipment
Recorded most often: headlamp aim too low and headlamp aim too high. 15.2% of failure items.
3
Tyres
Recorded most often: tread depth below requirements of 1.6mm and tyre pressure monitoring system malfunctioning or obviously inoperative. 11.8% of failure items.
4
Seat belts and supplementary restraint systems
Recorded most often: srs malfunction indicator lamp warning lamp indicates a fault. 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 GS has failed on these items before, or had them noted as advisories. Buying one? See the used MG GS buying guide.
Already found one?
Check its finance, write-off, theft, mileage and keeper history with a £15 vehicle history report.
MG GS MOT FAQs
What is the MG GS MOT pass rate?
73.1% of MG GS cars passed their initial MOT first time in 2025, from 2,849 tests. That is 0.8 percentage points above the 72.3% average for all cars, and ranks 291st of 575 models.
What does a MG GS most commonly fail its MOT on?
The item testers recorded most often on MG GS cars failing their 2025 MOT was headlamp aim too low, on 10.4% of failure items. Next were tread depth below requirements of 1.6mm (7.1%) and brake pads less than 1.5 mm thick (6.3%).
Which area causes the most MG GS MOT failures?
Across every recorded failure item, the largest area was lamps, reflectors and electrical equipment at 31.2%, followed by brakes at 22.1%.
Do older MG GS cars fail their MOT more often?
MG GS cars aged 3 to 5 years passed 73.9% of MOT tests in 2025, against 73.1% for cars aged 6 to 10 years.
Does this mean every MG GS has these problems?
No. These are the items testers recorded across every MG GS 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 GS'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.