MG Gs
From 4,436 MOT tests. Above average for its class.
Common MOT failure categories
Pass rate by registration year
Newer Gss fare better: 2019 models pass at 80.4% vs 78.3% for 2016.
What goes wrong?
The most common MOT failure reasons are tyre tread depth not in accordance with the requirements, the aim of a headlamp is not within limits laid down in the requirements and warning device shows system malfunction. The top issue, tyre tread depth not in accordance with the requirements, caused 118 failures in 2024. Checking tread depth (1.6mm legal minimum, 3mm recommended) before your test can save an unnecessary fail. You can check prices at Black Circles if you need replacements. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| tyre tread depth not in accordance with the requirements | 118 |
| the aim of a headlamp is not within limits laid down in the requirements | 116 |
| warning device shows system malfunction | 102 |
| a brake lining or pad worn below 1.5mm | 99 |
| a tyre seriously damaged | 70 |
| esc mil indicates a system malfunction | 68 |
| a tyre pressure monitoring system malfunctioning or obviously inoperative | 67 |
| brake disc or drum significantly and obviously worn | 50 |
| an srs malfunction indicator lamp (mil) indicates a system malfunction | 48 |
| wiper blade missing or obviously not clearing the windscreen | 47 |
How serious are these failures?
Not all MOT failures are equal. Only 34% of Gs failures are serious (safety or roadside), below the 44.4% average. When this car fails its MOT, it's more likely to be lights, wipers, or emissions than something dangerous. When it does fail, the average repair bill is around £85.
MG Gs on UK roads
The fleet is shrinking: 31 scrapped or exported in the past year, a net loss of 31.
Quarterly breakdown
| Quarter | On road | SORN | New | Gone | Net |
|---|---|---|---|---|---|
| 2025 Q3 | 2,643 | 32 | +0 | -0 | +0 |
| 2025 Q2 | 2,641 | 34 | +0 | -19 | -19 |
| 2025 Q1 | 2,664 | 30 | +0 | -12 | -12 |
| 2024 Q4 | 2,671 | 35 | +0 | -0 | +8 |
| 2024 Q3 | 2,670 | 28 | +1 | -0 | +1 |
| 2024 Q2 | 2,674 | 23 | +0 | -0 | +4 |
| 2024 Q1 | 2,673 | 20 | +0 | -8 | -8 |
| 2023 Q4 | 2,683 | 18 | +1 | -1 | +0 |
4 variants on the road
| Variant | Fuel | Licensed | Share |
|---|---|---|---|
| Gs Exclusive | Petrol | 1,056 | 40% |
| Gs Exclusive S-A | Petrol | 967 | 37% |
| Gs Excite | Petrol | 564 | 21% |
| Gs Explore | Petrol | 56 | 2% |
Source: DfT vehicle licensing statistics, 2025 Q3. Crown copyright, OGL v3.0.
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 2019 | 80.4% | tyre tread depth not in accordance with the requirements, a tyre pressure monitoring system malfunctioning or obviously inoperative |
| 2018 | 79% | a brake lining or pad worn below 1.5mm, warning device shows system malfunction |
| 2017 | 77.4% | the aim of a headlamp is not within limits laid down in the requirements, a brake lining or pad worn below 1.5mm |
| 2016 | 78.3% | the aim of a headlamp is not within limits laid down in the requirements, tyre tread depth not in accordance with the requirements |
Typical mileage
Half of all Gss tested had between 30,088 and 61,644 miles on the clock.
At 45,872 median miles, the Gs has 0.047 failures per 10,000 miles driven.
Other MG models
| MG Zs | 81.9% |
| MG 3 | 79.4% |
| MG Zs Exclusive Ev | 89.5% |
| MG Tf | 75% |
| MG Mgf | 72.8% |
Common questions
What is the MG Gs MOT pass rate?
The MG Gs has a 78.5% MOT pass rate based on 4,436 real MOT tests. This is above the national average.
What are common MOT failures on a MG Gs?
The most common MOT failure on the MG Gs is tyre tread depth not in accordance with the requirements, which caused 118 failures. Other common issues include the aim of a headlamp is not within limits laid down in the requirements.
How many MG Gss are on UK roads?
There are 2,643 MG Gss currently licensed on UK roads, with 32 on SORN.
What is the typical mileage of a MG Gs at MOT?
The median mileage at MOT for a MG Gs is 45,872 miles. The middle 50% of vehicles tested have between 30,088 and 61,644 miles.
Buying a used Gs?
Start with the free tools. Look up the specific vehicle's MOT history on GOV.UK The mileage at each test will show if it's been wound back, and the advisory history tells you what's wearing. Cross-reference that against the typical failures above to see if anything looks unusual for this model.
The free data won't tell you about outstanding finance, theft markers, or write-off history. For that, you need a vehicle history check This is especially important on a private sale where you have fewer legal protections.
With a 78.5% pass rate and an average repair bill of £85 when things go wrong, budget accordingly.
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MOT data from DVSA anonymised test results, 2024 test year. Fleet data from DfT vehicle licensing statistics. Crown copyright, OGL v3.0. MOT pass rates are statistical summaries of test outcomes, not assessments of individual vehicle safety or condition. Always inspect a vehicle and check its full MOT history before purchasing. See terms of use.