MG Zs reliability, MOT pass rate and rarity

Time Period & Model

Time period snapshot: Last 5 years

Manufacturer: MG

Model: Zs

Model reliability rank

MOT-based rank from 102,839 selected-period tests.

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Overall MOT pass rate

81.6%

Share of this model's 102,839 selected-period MOT tests that pass.

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Efficiency, emissions & tax

Average MPG

48.4 mpg

CO2 emission

134 g/km

Euro emissions

Euro 6

Tax cost

£200/yr

Vehicle list price over £40,000?NoYes

Average vehicle miles

49,916

Lower average mileage in the analysed fleet.

Life expectancy miles

95,131

Lower mature-fleet mileage expectation.

Average vehicle age

7.9

Shorter age profile in the current analysed pool.

Vehicles represented

17,503

17,485 valid MOT, 18 under 3 years.

Tests analysed

102,839

102,839 MOT tests in the selected period.

Rarity ranking

Based on Make & Model

Scarce

17,503On the road

Insight summary

MG Zs is a scarce model in this snapshot, with 17,503 represented vehicles and 0.04% of the active UK pool tracked by AutoRank. For the last 5 years, it has a pass rate of 81.6% from 102,839 MOT tests, with a reliability score of 45. The current pool shows an average of 49,916 miles and an average age of 7.9 years, while mature-fleet mileage is estimated at 95,131 miles. Petrol leads the fuel split, followed by diesel, and the most frequent defect themes are parking brake, engine warning light and tyre condition. The practical read is that the MG Zs looks like a solid used-car baseline rather than a rare find, with age, mileage and common wear items doing most of the explaining.

Fuel type breakdown (by model)

Fuel	Vehicles
PETROL	17,397
DIESEL	59
ELECTRIC	24
HYBRID ELECTRIC (CLEAN)	15
LPG	4
OTHER	4

Euro NCAP Safety

NCAP rating

3 / 5

Adult

71%

Children

51%

Pedestrian

59%

Safety systems

29%

Top 25 most common defects (by model)

Defect	Count
Parking brake efficiency below requirements (1.4.2 (a) (i))	1,244
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))	905
Tyre pressure monitoring system malfunctioning or obviously inoperative (5.2.3 (h))	885
Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))	843
Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))	800
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))	786
Offside Rear Service brake excessively binding (1.2.1 (f))	769
Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))	667
Front Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))	656
Offside Headlamp not working on dipped beam (4.1.1 (a) (ii))	617
Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))	606
Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))	566
Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b))	506
Nearside Headlamp not working on main beam (4.1.1 (a) (ii))	459
Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits (8.2.1.2 (a))	449
Anti-lock braking system warning lamp indicates an ABS fault (1.6 (b))	383
Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii))	383
Nearside Rear Service brake excessively binding (1.2.1 (f))	368
Offside Headlamp not working on main beam (4.1.1 (a) (ii))	358
Offside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))	353
Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))	351
Windscreen washer provides insufficient washer liquid (3.5 (a))	349
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))	334
Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))	332
Nearside Front Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))	310

All 25 defects ranked by recorded countShowing 14,279 defects across this top 25 set

Parking brake efficiency below requirements (1.4.2 (a) (i))

1,244

Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))

905

Tyre pressure monitoring system malfunctioning or obviously inoperative (5.2.3 (h))

885

Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))

843

Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))

800

Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))

786

Offside Rear Service brake excessively binding (1.2.1 (f))

769

Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

667

Front Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))

656

Offside Headlamp not working on dipped beam (4.1.1 (a) (ii))

617

Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))

606

Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))

566

Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b))

506

Nearside Headlamp not working on main beam (4.1.1 (a) (ii))

459

Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits (8.2.1.2 (a))

449

Anti-lock braking system warning lamp indicates an ABS fault (1.6 (b))

383

Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii))

383

Nearside Rear Service brake excessively binding (1.2.1 (f))

368

Offside Headlamp not working on main beam (4.1.1 (a) (ii))

358

Offside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))

353

Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))

351

Windscreen washer provides insufficient washer liquid (3.5 (a))

349

Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))

334

Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))

332

Nearside Front Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))

310

MG Zs reliability and MOT data