2018 · 6 years old at test · Petrol mostly

2018 MG GS MOT pass rate and common faults

858 MOT tests in 2024. 74.7% passed first time, compared with 82.5% for all cars the same age.

91Well below average
Passed first time74.7%
Failed or needed repairs25.3%
Typical mileage at test41,000

Most common reasons for failing

Share of all 858 tests where this item caused a failure.

  1. Headlamp aim: too low5.1%
  2. Anti-lock braking system: warning lamp indicates an ABS fault4.0%
  3. Brake pads: less than 1.5 mm thick3.4%
    34 marked dangerous
  4. Tread depth below requirements of 1.6mm2.8%
    35 marked dangerous
  5. Tyre pressure monitoring system: malfunctioning or obviously inoperative2.7%
  6. Electronic stability control: warning lamp indicates a fault2.4%
  7. SRS malfunction indicator lamp: warning lamp indicates a fault2.1%
  8. Wipers: does not clear the windscreen effectively1.2%
  9. Brake discs: significantly and obviously worn0.9%

Problem areas

Failure items found per 100 tests, by part of the car.

  1. Brakes13.2%
  2. Lights & electrics11.0%
  3. Tyres8.2%
  4. Seat belts & airbags2.7%
  5. Visibility (wipers, screen, mirrors)2.4%
  6. Emissions & leaks2.0%
  7. Body & chassis1.3%
  8. Number plates & VIN0.7%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tyres - condition: has a tear, caused by separation or partial failure of its structure20.5%
  2. Brake discs: in such a condition that it is seriously weakened16.8%
  3. Tread depth below requirements of 1.6mm12.4%
  4. Brake pads: less than 1.5 mm thick9.1%
  5. Non-component advisories: Child Seat fitted not allowing full inspection of adult belt4.5%

What this means if you are buying one

This model year fails more often than most cars its age, so budget for repairs and check the history carefully. Before buying, check the area that fails most: headlamp aim: too low. Then look up the car's own MOT history on GOV.UK with its number plate, and look for repeat advisories.

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Questions

What is the MOT pass rate for a 2018 MG GS?

In 2024, 74.7% of 2018 MG GS cars passed their MOT first time, across 858 tests. The average for all 6-year-old cars was 82.5%.

What are the most common MOT failures on a 2018 MG GS?

The most common failure reasons were headlamp aim: too low; anti-lock braking system: warning lamp indicates an abs fault; brake pads: less than 1.5 mm thick. The biggest problem area was brakes.

Is the 2018 MG GS reliable at MOT time?

Its MOT Rank score is 91, which is well below average for a car of its age (100 means exactly average).