Mg Zr+ MOT data by year

The Mg Zr+ appears in 15,253 MOT tests in this dataset across model years 1994–2021. Its most common failure areas are lighting & signalling, body, structure & corrosion and brakes, and its overall pass rate is 74.8%.

15,253
MOT tests analysed
74.8%
Pass rate
25.2%
Fail rate
1994–2021
Years covered

By model year

Mg Zr+ MOT results by model year
Year Tests Pass rate Fail rate Most common failure
2003 3,924 74.7% 25.3% Lighting & signalling
2004 5,146 75.0% 25.1% Lighting & signalling
2006 449 74.2% 25.8% Lighting & signalling

Most common failures (all years)

Most common MOT failure areas — Mg Zr+
# Category % of tests affected Tests
1 Lighting & signalling 15.0% 2,294
2 Body, structure & corrosion 9.8% 1,499
3 Brakes 8.8% 1,336
4 Suspension 6.7% 1,026
5 Emissions & environmental 6.6% 1,009
6 Visibility 4.6% 703
7 Tyres 4.5% 692
8 Steering 2.9% 450
Share of tests failing on each category Lighting & signalling 15.0% Body, structure & corrosion 9.8% Brakes 8.8% Suspension 6.7% Emissions & environmental 6.6% Visibility 4.6%
Percentage of tests with at least one failure recorded in each category, across all model years.

Methodology & source. Based on 15,253 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.

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