73.1%
MG GS pass rate
Used MG GS buying guide
In 2025, MG GS cars passed 73.1% of 2,849 initial MOT tests, 0.8 points above the 72.3% UK average. Here is where it fails and what to check before you buy.
Looking at a specific GS? Check its finance, write-off, stolen, mileage and keeper history. £15, no account needed.
MG GS MOT record in brief
Initial MOT tests in 2025, retests excluded.
72.3%
UK average, all cars
+0.8
percentage points above average
Ranked on pass rate the GS sits 291st of 575 models in the data. MG as a brand averaged 80.9%, so this model runs 7.8 points behind its own brand. MG GS cars aged 3 to 5 years passed 73.9% of MOT tests in 2025; for examples aged 6 to 10 years that fell to 73.1%.
A pass rate is not a reliability score. The full MG GS MOT record has the pass rate by age, every common failure and how the GS compares with similar cars.
GS fuel types
Petrol was the most common fuel among MG GS cars tested in 2025. None of the tested examples were diesel.
Where the GS fails its MOT
Where MG GS cars that failed their 2025 MOT were marked down, as a share of all recorded failure items.
The specific items testers recorded most often were headlamp aim too low (10.4%), tread depth below requirements of 1.6mm (7.1%) and brake pads less than 1.5 mm thick (6.3%). See every common GS MOT failure.
These are DVSA failure records across every MG GS that failed, not a claim that every GS has these problems.
What should you check when buying a used GS?
The areas above, most common first, and what an MOT tester looks at in each.
1
Lamps, reflectors and electrical equipment
Walk round with every light on: headlights, brake lights, indicators, fog lights and the number plate lamp. Check no warning lights stay on after starting. 31.2% of GS failure items.
2
Brakes
Make sure the pedal feels firm, the car stops in a straight line, the handbrake holds on a slope and no brake warning light is showing. 22.1% of GS failure items.
3
Tyres
Check tread depth across the full width of every tyre (the legal minimum is 1.6mm), and look for cuts, bulges and uneven wear. 17.5% of GS failure items.
4
Noise, emissions and leaks
Listen for a blowing exhaust, watch for smoke on start-up and look under the car for oil or fluid leaks. 7% of GS failure items.
5
Visibility
Check the windscreen for chips or cracks in the driver's view, and that the wipers and washers clear it properly. 6.5% of GS failure items.
None of this replaces the car's own record. Run a free MOT history check on the registration to see every test, advisory and recorded mileage for that car.
What the MOT record doesn't tell you
Knowing MG GS failures cluster around lamps, reflectors and electrical equipment and brakes tells you what to inspect. It tells you nothing about whether the car is safe to buy. An MOT does not show money still owed on the car, a write-off, a theft record or a clocked odometer.
Check the exact GS you are looking at. One £15 report, instant results, backed by a £30,000 data guarantee. More on the MG history check.
- Outstanding finance
- Write-off records
- Stolen markers
- Mileage history
- Previous keepers
Other used MG models
The most-tested MG models in 2025, with how their MOT pass rate compares with the GS.
Used MG GS FAQs
Is the MG GS reliable?
MOT data does not measure reliability. It records whether a car met the roadworthiness standard on the day of its test. What it does show is a 73.1% first-time pass rate for the MG GS across 2,849 tests in 2025, above the 72.3% average for all cars.
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; for examples aged 6 to 10 years that fell to 73.1%. On an older example, the car's own MOT history tells you more than the model average.
What should I check before buying a used MG GS?
On the car itself, start with the areas it most often fails on: lamps, reflectors and electrical equipment, brakes and tyres. Then check the individual car's history: outstanding finance, insurance write-off records, stolen markers, mileage and previous keepers. None of these appear in the MOT record or on the V5C.
How do I check a MG GS's history?
Enter the registration of the specific car. A Carpeep car history check reports outstanding finance, write-off category, stolen markers, mileage history, previous keepers, MOT and tax status, import and export markers and scrapped status in one £15 report.
MOT figures are aggregated from the DVSA MOT Anonymised data set for 2025 (class 4 initial tests, retests excluded), licensed under the Open Government Licence v3.0. MOT results describe roadworthiness at test, not mechanical reliability.