What year BMW Z3 is most reliable?

Based on MOT first-test pass rates, the 2003 BMW Z3 has the highest pass rate at 81.8%, out of 130 vehicles tested.

What are the most common BMW Z3 MOT failures?

The most common BMW Z3 MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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BMW Z3 — Reliability by Year

26,469 vehicles · MOT data 1996–2003 · first-test pass rates

This page shows MOT first-test pass rates for each year the BMW Z3 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

2003

81.8% pass rate · 130 vehicles

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Lowest pass rate year

1997

72.1% pass rate · 4,935 vehicles

Year	Pass rate	Avg mileage	Vehicles
2003	81.8%	50,249 mi	130
2002	78.5%	62,463 mi	1,861
2001	77.0%	66,395 mi	3,396
2000	75.1%	71,303 mi	4,010
1999	74.1%	75,867 mi	6,006
1998	73.7%	76,966 mi	6,001
1997	72.1%	83,409 mi	4,935
1996	73.8%	87,732 mi	130

Which year BMW Z3 is most reliable?

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

Tests range from an average of 50,249 miles (newest year) to 87,732 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 BMW Z3.

See the buying guide →

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