MG ZS MOT pass rate: 79.0% (18,837 tests, 2025)

The MG ZS passed 79.0% of its 18,837 MOT tests in 2025 — 1.5 points above the UK average of 77.5%. The median tested example was 6 years old with 40,441 miles on the clock.

79.0%Pass rate (2025)

18,837MOT tests analysed

40,441 miMedian mileage at test

6 yrsMedian age at test

How the ZS compares

MG ZS

79.0%

UK average (all Class 4 vehicles)

77.5% across 33.1 million tests

MG average (all models)

84.9%

What fails most on the MG ZS

Across failed and rectified tests in 2025, these vehicle systems produced the most defects on the ZS:

#	System	Defects recorded	Share
1	Brakes	2,658	31.1%
2	Lamps, reflectors and electrical equipment	1,696	19.8%
3	Tyres	1,538	18.0%
4	Suspension	942	11.0%
5	Noise, emissions and leaks	820	9.6%
6	Visibility	558	6.5%

Pre-MOT checklist for ZS owners

Based on the failure profile above, ten minutes with a torch before your test removes the most likely fail items:

Feel for a spongy pedal or pulling to one side; check pad wear through the wheel spokes if visible
Walk round with all lights on: one blown bulb is the most avoidable fail there is
Check tread with the 20p test and inspect sidewalls for cracking — tyres close to the limit are the country’s most common advisory
Bounce each corner and listen for clonks over speed bumps — suspension is this model’s (and the UK’s) top failure system
A blowing exhaust or visible smoke will fail; warm the engine fully before the test

Check the engine before the tester does

A stored fault code with the engine light on is an automatic Major defect. Scan and clear resolved faults before booking.

Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
Autel UK testersAutel professional-grade diagnostic testers

ZS pass rate by registration year

Registration year	Tests	Pass rate	Vs same-age	Median mileage
2018	14,946	81.1%	-5.2 pts	38,774
2019	23,583	83.1%	-5.3 pts	31,565
2020	12,965	84.9%	-5.0 pts	25,283

Check a specific ZS before you buy

Pass rates describe the model; they can’t tell you about the one car you’re looking at. Run its plate through our free MOT history check to see its personal record of failures, advisories and mileage readings.

Other MG models

378.5% pass rate · 19,553 tests Hs Exclusive S-A92.5% pass rate · 10,003 tests 5 Exclusive90.2% pass rate · 9,518 tests ZS Exclusive EV87.7% pass rate · 9,445 tests ZS Exclusive Vti-Tech88.4% pass rate · 9,373 tests Tf73.7% pass rate · 8,549 tests Hs Exclusive90.9% pass rate · 8,098 tests ZS Exclusive T-Gdi Auto91.2% pass rate · 6,003 tests

FAQs

What is the MOT pass rate for a MG ZS?

In 2025, 79.0% of 18,837 first MOT tests on the MG ZS were passes (UK average: 77.5%). Data: DVSA anonymised MOT results.

What does the ZS fail its MOT on most?

The biggest defect group is brakes (31.1% of its recorded defects), followed by lamps, reflectors and electrical equipment.

Is the MG ZS reliable?

MOT pass rate is one lens on durability: at 79.0% it performs above the national average at a median age of 6 years and 40,441 miles. Always check the individual car's history too.

Source: DVSA Anonymised MOT tests and results, 2025 extract (Class 4 initial tests only; retests excluded). Contains public sector information licensed under the Open Government Licence v3.0. Figures rounded to one decimal place.