1999 · 25 years old at test · Petrol mostly

1999 MG Mgf MOT pass rate and common faults

825 MOT tests in 2024. 68.5% passed first time, compared with 63.3% for all cars the same age.

108Well above average
Passed first time68.5%
Failed or needed repairs31.5%
Typical mileage at test64,000

Most common reasons for failing

Share of all 825 tests where this item caused a failure.

  1. Rbt (sp): efficiency below requirements5.5%
  2. Catalyst emissions: carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits5.3%
  3. Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits3.4%
  4. Catalyst emissions: carbon monoxide content after 2nd fast idle exceeds default limits3.2%
  5. Service brake performance: efficiency below requirements2.4%
  6. Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength2.3%
  7. Track rod end: ball joint has excessive play2.2%
  8. Headlamp aim: projected beam image is obviously incorrect1.9%
  9. Rear fog lamp: not working1.9%
  10. Washers: provides insufficient washer liquid1.8%

Problem areas

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

  1. Emissions & leaks18.8%
  2. Brakes18.4%
  3. Lights & electrics13.8%
  4. Suspension12.1%
  5. Steering6.2%
  6. Visibility (wipers, screen, mirrors)6.1%
  7. Body & chassis4.0%
  8. Tyres3.3%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Brake discs: in such a condition that it is seriously weakened14.2%
  2. Tread depth below requirements of 1.6mm9.5%
  3. Sub-frame: corroded and seriously weakened8.7%
  4. Rigid brake pipes: excessively corroded8.6%
  5. Engine oil leaks: leaking excessively from engine7.0%

What this means if you are buying one

This model year does better than most cars its age, so it is a reasonable used buy on MOT record alone. Before buying, check the area that fails most: rbt (sp): efficiency below requirements. 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 1999 MG Mgf?

In 2024, 68.5% of 1999 MG Mgf cars passed their MOT first time, across 825 tests. The average for all 25-year-old cars was 63.3%.

What are the most common MOT failures on a 1999 MG Mgf?

The most common failure reasons were rbt (sp): efficiency below requirements; catalyst emissions: carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits; catalyst emissions: lambda reading after 2nd fast idle outside specified limits. The biggest problem area was emissions & leaks.

Is the 1999 MG Mgf reliable at MOT time?

Its MOT Rank score is 108, which is well above average for a car of its age (100 means exactly average).