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MOT reliability

Mg Zs

38,862 vehicles · 363,908 completed MOT tests analysed
74%
MOT pass rate

Based on 38,862 Mg Zs vehicles and 363,908 completed MOT tests, the Mg Zs has an overall 74% pass rate, with an average recorded mileage of 71,653 miles.

38,862
Vehicles
363,908
MOT tests
7,211
Avg miles / year
1.8
Faults per test
1%
Dangerous-fault share

Mg Zs problem areas

Where faults occur most across all Mg Zs MOT tests:

  • Other83%
  • Tyres, wheels & suspension14%
  • Brakes12%
  • Emissions & nuisance4%
  • Seatbelts & equipment3%
  • Lamps & electrical3%
  • Body & structure2%
  • Visibility1%

Mg Zs pass rate by age

How the Mg Zs's MOT pass rate changes as it ages (buckets with 20+ tests).

Age (years)TestsPass rate
14288%
291787%
336,18985%
444,72282%
547,66679%
646,07376%
737,90073%
829,25169%
924,59266%
1021,57065%
1118,15164%
1214,49164%
1311,08964%
148,22164%
155,93965%
164,31565%
173,26466%
182,59667%
192,11669%
201,76868%

Fuel types: Petrol (37,090), Diesel (1,685), Electric (27), LPG (23), Other (20), Hybrid Electric (Clean) (15), Gas Bi-Fuel (2)

Most common Mg Zs MOT faults

These are the faults and advisories recorded most often across Mg Zs MOT tests:

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1) (14,490 times)
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1) (14,099 times)
  3. Parking brake: efficiency below requirements (3.7.B.7) (11,721 times)
  4. Nearside Rear Tyre worn close to the legal limit (4.1.E.1) (10,612 times)
  5. Offside Rear Tyre worn close to the legal limit (4.1.E.1) (9,651 times)
  6. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (7,944 times)
  7. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (7,663 times)
  8. Oil leak (6,277 times)
  9. Front Brake pad(s) wearing thin (3.5.1g) (6,131 times)
  10. Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (5,556 times)
  11. Nearside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1) (4,904 times)
  12. Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7) (4,535 times)
  13. Child seat fitted not allowing full inspection of adult belt (4,440 times)
  14. Offside Stop lamp not working (1.2.1b) (4,310 times)
  15. Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i) (4,266 times)

Mg Zs pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2025 1 2 50% 27,653
2024 1 1 100% 5,082
2023 16 21 81% 24,259
2022 32 49 82% 29,793
2021 58 153 84% 35,825
2020 4,231 18,467 83% 38,477
2019 7,901 42,753 83% 44,373
2018 5,031 33,164 83% 51,013
2017 356 2,629 81% 54,087
2012 1 2 100% 65,453
2008 3 38 74% 89,625
2007 6 61 72% 57,841
2006 314 4,275 71% 83,081
2005 1,850 25,607 71% 92,067
2004 4,388 58,472 71% 92,437
2003 5,286 69,591 70% 94,951
2002 6,789 82,378 69% 96,006
2001 2,286 26,109 69% 96,606
2000 1 9 89% 77,881
1999 1 7 86% 64,771
1994 1 6 83% 35,154
1980 1 6 33% 130,971
1977 1 6 67% 67,989
1974 1 3 67% 44,805
1969 2 16 81% 93,753
1958 1 4 50% 67,687
1937 1 1 100% 33

Mg Zs reliability FAQ

Across 38,862 Mg Zs vehicles in our MOT data, 74% pass the MOT (a 26% failure rate), with about 1.8 faults or advisories recorded per test.

The most frequently recorded Mg Zs MOT issues are: Nearside Front Tyre worn close to the legal limit (4.1.E.1); Offside Front Tyre worn close to the legal limit (4.1.E.1); Parking brake: efficiency below requirements (3.7.B.7).

The typical Mg Zs in our data has covered around 71,653 miles.

Compare the Mg Zs

See how the Mg Zs stacks up against other Mg models on MOT reliability:

Zs vs Metro Zs vs B gt Zs vs Mgf Zs vs B

Check a specific Mg Zs

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

See all Mg models · Learn about common MOT failures · what an MOT checks