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MG GS MOT fail rate by age and year

DVSA MOT tests 2022–2025 · 10,561 MOT tests · Updated

At 6 years, 24.2% of MG GS MOT tests ended in a fail (adjusted to typical mileage), against 17.7% for all class 4 vehicles tested at 6 (2,862 MOT tests) [1].

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  • Lights and electrics: fails 1.8–2.3× as often as cars the same age at 6 years, 273 of 2,862 MOT tests
  • Mileage: median 41,410 miles at 6 years against 44,951 for all class 4 vehicles, 2,862 MOT tests
  • Before the mileage adjustment: 23.0% of MOT tests at 6 years ended in a fail, 2,862 MOT tests

Which engine and year a car has decides which of these apply. Check the reg first.

Figures are for the model, not one car, and compare with all class 4 vehicles tested at 6 in the same test year.

Fail rate at 6 years, typical mileage
24.2%
vs 17.7% for all class 4 vehicles tested at 6
2,862 MOT tests
Fail rate at 6 years, raw
23.0%
vs 17.7% for all class 4 vehicles tested at 6
2,862 MOT tests
Median mileage at 6 years
41,410 mi
vs 44,951 mi for all class 4 vehicles
2,862 MOT tests

MG GS MOT fail rate by age

Each line follows the cars first used in one year across the ages they were tested at from 2022 to 2025, so a line never mixes a 2005 car with a 2015 one. 11k DVSA MOT tests in all (10,561).

At 6 years and typical mileage that is 36% more fails than all class 4 vehicles tested at 6 (2,862 MOT tests).

MG GS: share of MOT tests that failed, by age. Only ages with at least 1,000 MOT tests. 'Typical mileage' is n/a where the model's mileage bands cover less than 80% of the national mix.
AgeMOT testsRawTypical mileageAll class 4Difference
41,34114.2%14.4%13.6%+0.8 pts
52,32220.8%21.9%15.6%+6.2 pts
62,86223.0%24.2%17.7%+6.5 pts
72,50424.8%25.7%19.9%+5.8 pts
81,53227.7%29.0%22.4%+6.6 pts

Higher MOT fail rate than average: 23.0% raw · 24.2% at typical mileage, against 17.7% for all class 4 vehicles tested at 6, 2,862 MOT tests. Which years? See the full verdict

What fails on an MG GS at 6 years

1 of 11 parts fail clearly more or less often than on cars the same age, with the same direction at 3 or more ages up to 18 years and no mixed picture.

What failed at 6 years, per 100 MOT tests (2,862 MOT tests), against all class 4 vehicles tested at 6. A test that fails on two parts counts for both.
PartPer 100All class 4ComparedMost common fail
Lights and electrics9.54.7fails 1.8–2.3× as often as cars the same ageHeadlamp aim too low (MOT fail)
Brakes7.23.5about average for cars the same ageBrake pad(s) less than 1.5 mm thick (MOT fail)
Tyres6.75.6about average for cars the same ageTyre pressure monitoring system malfunctioning or obviously inoperative (MOT fail)
Emissions and leaks2.61.3about average for cars the same agePetrol exhaust Lambda reading after 2nd fast idle outside specified limits (MOT fail)
Seat belts and airbags2.10.4about average for cars the same ageAirbag (SRS) warning lamp indicates a fault (MOT fail)
Visibility1.93.3about average for cars the same ageWindscreen wiper does not clear the windscreen effectively (MOT fail)

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Check one MG GS, not the average

The figures here describe MG GS cars as a group. A registration shows one car's own DVSA record: its MOT tests, the mileage at each test and the recall flag.

More MG GS data

Mileage at MOT

At 6 years, 23.0% of MOT tests ended in a fail as tested. Weighted to the mileage mix of all class 4 vehicles that age, the rate is 24.2%, so mileage explains part of the gap.

MG GS MOT fail rate by mileage bandFail rate in each mileage band at the reference age, this model against all class 4 vehicles.0%20%40%MG GS, <30k miles: 14.3%All class 4 vehicles, <30k miles: 11.9%<30kMG GS, 30-60k miles: 24.2%All class 4 vehicles, 30-60k miles: 17.6%30-60kMG GS, 60-90k miles: 29.3%All class 4 vehicles, 60-90k miles: 22.2%60-90k
MG GS all class 4 vehicles
By mileage at the test, 6 years.
MilesMOT testsMG GSAll class 4
<30k66414.3%11.9%
30-60k1,70824.2%17.6%
60-90k42629.3%22.2%

MG GS against similar cars at 6 years

Same class and fuel, all tested at 6 years, at typical mileage.

ModelFail rate95% rangeMOT tests
MG GS24.2%22.6% to 25.9%2,862
Nissan Qashqai MOT fail rate17.4%17.2% to 17.6%215,769
Kia Sportage MOT fail rate17.2%17.0% to 17.4%141,166
Volkswagen Tiguan MOT fail rate12.5%12.3% to 12.7%109,263
Hyundai Tucson MOT fail rate16.2%16.0% to 16.5%97,247
Peugeot 3008 MOT fail rate19.5%19.2% to 19.8%61,018
Audi Q3 MOT fail rate12.1%11.8% to 12.5%59,588
Mercedes-Benz GLA MOT fail rate15.1%14.7% to 15.5%56,883
Renault Kadjar MOT fail rate21.2%20.8% to 21.6%56,875

Other MG models

More MG GS data

Running costs

By part

Problems, recalls and costs

Questions people ask

How often does an MG GS fail its MOT at 6 years?

24.2% of MOT tests at 6 years ended in a fail at typical mileage (23.0% as tested), from 2,862 MOT tests, against 17.7% for all class 4 vehicles the same age; the Nissan Qashqai was at 17.4%.

What fails most on an MG GS at 6 years?

9.5 in 100 MOT tests at 6 years failed on lights and electrics, most often "headlamp aim too low", then brakes (7.2) and tyres (6.7), from 2,862 MOT tests.

How does the MG GS compare with the Nissan Qashqai?

At 6 years the MG GS failed 24.2% of MOT tests at typical mileage, the Nissan Qashqai 17.4% and the Kia Sportage 17.2%, from 2,862, 215,769 and 141,166 MOT tests.

Does the MG GS fail on lights and electrics more than other cars?

9.5 in 100 MOT tests at 6 years failed on lights and electrics, against 4.7 for all class 4 vehicles: 1.8–2.3× as often, from 2,862 MOT tests, in the same direction at 3 ages.

What mileage does an MG GS have at 6 years?

A median of 41,410 miles at the MOT test at 6 years, against 44,951 for all class 4 vehicles the same age, from 2,862 MOT tests.

Sources

  1. Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 10,561 MOT tests. Accessed 7 Oct 2026.

Cars tested at 6 years are compared only with vehicles tested at 6 years in the same year, adjusted to typical mileage. Breakdowns and non-MOT faults are not in this data.