MG C
From 255 MOT tests. Above average for its class.
Common MOT failure categories
What goes wrong?
The most common MOT failure reasons are brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle., parking brake efficiency below minimum requirement and steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc. The top issue, brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle., caused 13 failures in 2024. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle. | 13 |
| parking brake efficiency below minimum requirement | 11 |
| steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc | 11 |
| emissions levels exceed default limits | 9 |
| windscreen washers not working or not providing sufficient fluid to clear the windscreen | 7 |
| steering rack gaiter or ball joint dust cover damaged or deteriorated | 7 |
| parking brake inoperative on one side | 5 |
| fuel system leaking excessively or a risk of fire | 5 |
| wiper blade defective | 5 |
| a suspension component insecurely attached to chassis or axle | 4 |
How serious are these failures?
Not all MOT failures are equal. 37.7% of failures are serious: 31.2% are safety issues (brakes, steering, tyre damage) and 6.5% could actually leave you stranded. That's close to the 44.4% average across all models. When it does fail, the average repair bill is around £121.
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 1968 | 84.2% | brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle., steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc |
Typical mileage
Half of all Cs tested had between 9,375 and 73,219 miles on the clock. Relatively low mileage overall. Many are still fairly young.
At 32,323 median miles, the C has 0.041 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 C MOT pass rate?
The MG C has a 86.7% MOT pass rate based on 255 real MOT tests. This is above the national average.
What are common MOT failures on a MG C?
The most common MOT failure on the MG C is brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle., which caused 13 failures. Other common issues include parking brake efficiency below minimum requirement.
What is the typical mileage of a MG C at MOT?
The median mileage at MOT for a MG C is 32,323 miles. The middle 50% of vehicles tested have between 9,375 and 73,219 miles.
Buying a used C?
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.
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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.