Mg Zr
Reliability, running costs, and MOT data across 6 years from 3,628 real MOT tests.
Avg Pass Rate
76%
Total Tests
3,628
Best Year
2005 (78%)
Years Covered
6
How reliable is the Mg Zr?
Mg Zr by Year
Checking a specific Mg Zr?
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About the Mg Zr
The Mg Zr has been tested 3,628 times in 2024 MOT data across 6 model years (2001 to 2006), with an average pass rate of 76%. That's 6 points below the national average of 82%, so check the year-by-year data carefully before buying. Available as petrol.
Best and Worst Years
The 2005 model is the most reliable with a 78% pass rate from 784 tests. The 2004 model has the lowest at 74%. With just a 4 point spread, the Zr is consistently reliable regardless of year.
Reliability Trend
The MG ZR has maintained consistent MOT pass rates across model years, varying by only 0 percentage points.
Mileage Across Years
The oldest model in our data (2001) averages 88,751 miles, while the newest (2006) averages 86,716 miles.
Compared to the Mg brand average of 86%, the Zr is 10 points lower, placing it among the less reliable Mg models.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.