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MG Zs — Reliability by Year

38,963 vehicles · MOT data 2001–2020 · first-test pass rates

This page shows MOT first-test pass rates for each year the MG Zs 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
2020
87.1% pass rate · 4,203 vehicles
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Lowest pass rate year
2001
71.4% pass rate · 2,346 vehicles
Year Pass rate Avg mileage Vehicles
2020
87.1%
26,010 mi 4,203
2019
86.2%
28,864 mi 7,853
2018
85.5%
32,666 mi 5,001
2017
83.0%
35,695 mi 353
2006
71.9%
55,415 mi 311
2005
72.0%
57,498 mi 1,860
2004
72.5%
58,631 mi 4,437
2003
72.3%
60,526 mi 5,450
2002
71.7%
63,951 mi 7,149
2001
71.4%
67,840 mi 2,346

Which year MG Zs is most reliable?

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

Tests range from an average of 26,010 miles (newest year) to 67,840 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 Zs.

See the buying guide →

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