CarCostCheck

MG ZT

Reliability, estimated running costs, and MOT data across 7 model years from 2,635 MOT tests in 2024.

Avg Pass Rate

76%

Total Tests

2,635

Highest Pass Rate

2004 (81%)

Years Covered

7

About the MG ZT

The MG ZT was MOT tested 2,635 times in 2024 (DVSA data, retests included) across 7 model years (2001 to 2007), with an average pass rate of 76%. That's 6 points below the average of 82% across all models in our data, so check the year-by-year data carefully before buying. Our records list diesel and petrol versions.

Best and Worst Years

Of the years with at least 100 tests, the 2004 model has the highest pass rate at 81% from 974 tests. The 2006 model has the lowest at 71%. The 10 point gap means pass rates vary somewhat between years, but no year is dramatically different. Newer cars usually pass more often simply because they are younger.

Reliability Trend

The MG ZT has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.

Mileage Across Years

The oldest model in our data (2001) averages 100,291 miles, while the newest (2007) averages 74,913 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.

Compared to the MG brand average of 86%, the ZT is 10 points lower, placing it among the less reliable MG models.

Estimated Running Costs

Fuel (Petrol, 4601cc)
£1,958
Road Tax
£790
MOT Test
£55
Predicted Repairs
£500
Total per year£3,303
Per month£275/mo

Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.

Full 2007 details

How reliable is the MG ZT?

vs average of all models-6% (82% avg)
vs MG brand average-10% (86% avg)
Best to worst year spread10 percentage points
Reliability trendStable over years

MG ZT by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

YearPass RateTestsAvg Mileage
200778%3774,913 mi
200671%15795,387 mi
200578%556101,102 mi
200481%97481,859 mi
200374%557103,354 mi
200277%26297,723 mi
200175%92100,291 mi

Questions about the MG ZT

Is the MG ZT reliable?

Across its 7 model years in our data (2001 to 2007), the MG ZT averages a 76% MOT pass rate, from 2,635 tests (DVSA MOT data for tests in 2024, retests included). That's 6 points below the average of 82% across all models in the same data. The 2004 model has the highest pass rate of the years with at least 100 tests, at 81%.

Which year MG ZT has the best MOT pass rate?

Of the years with at least 100 tests, the 2004 MG ZT has the highest MOT pass rate at 81%, while the 2006 model has the lowest at 71%, a 10 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Are newer MG ZTs more reliable?

The MG ZT has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.

MG ZT Guides & Articles

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