What year MG Montego MG Turbo is most reliable?

Based on MOT first-test pass rates, the 1986 MG Montego MG Turbo has the highest pass rate at 75.4%, out of 1,818 vehicles tested.

What are the most common MG Montego MG Turbo MOT failures?

The most common MG Montego MG Turbo MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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MG Montego MG Turbo — Reliability by Year

5,586 vehicles · MOT data 1985–1989 · first-test pass rates

This page shows MOT first-test pass rates for each year the MG Montego MG Turbo was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →

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Best pass rate year

1986

75.4% pass rate · 1,818 vehicles

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Lowest pass rate year

1988

63.1% pass rate · 822 vehicles

Year	Pass rate	Avg mileage	Vehicles
1989	72.8%	112,719 mi	532
1988	63.1%	77,024 mi	822
1987	73.9%	73,598 mi	1,067
1986	75.4%	117,455 mi	1,818
1985	74.6%	63,593 mi	1,347

Which year MG Montego MG Turbo is most reliable?

MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests.

Tests range from an average of 63,593 miles (newest year) to 117,455 miles (oldest year). Older years naturally accumulate more tests at higher mileages — see the mileage-normalised breakdown →

Trying to decide which year to buy?

We've done the full analysis — which years to look for, which to avoid, and where to find the best value for reliability on a MG Montego MG Turbo.

See the buying guide →

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Check any UK registration — free MOT history and risk insights.