2021 Mg Hs Exclusive S-A — MOT failures & pass rate

Across 5,341 MOT tests analysed for the 2021 Mg Hs Exclusive S-A, the most common recorded failure areas were tyres, brakes and lighting & signalling. Its pass rate of 92.8% was above the average for cars of a similar age (91.2%). Higher-mileage examples failed more often — 10.3% in the 60-90k group versus 5.3% in the 0-30k group.

Pass rate

5,341

MOT tests analysed

7.1%

Fail rate

better than

vs cars of similar age

3.5

Avg age at test (yrs)

How it compares

Fail rate for this model-year against the segment and national averages for cars of a similar age.

Top failure categories

Most common MOT failure areas — 2021 Mg Hs Exclusive S-A
#	Category	% of tests affected	Tests
1	Tyres	3.1%	165
2	Brakes	2.6%	139
3	Lighting & signalling	1.8%	97
4	Visibility	1.6%	85
5	Emissions & environmental	0.5%	28
6	Other defects	0.4%	24

Percentage of tests with at least one failure recorded in each category.

Most common specific failures

The exact components most often recorded as failures — more specific than the categories above.

Most frequently recorded failure items — 2021 Mg Hs Exclusive S-A
#	Failure item	Times recorded
1	Brake pads	108
2	Headlamp aim	91
3	Washers	65
4	Brake discs	51
5	Tyre pressure monitoring system	36
6	Tread depth	32

Top advisory categories

Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.

Most common MOT advisories — 2021 Mg Hs Exclusive S-A
#	Category	% of tests with advisory	Tests
1	Brakes	18.8%	1,003
2	Tyres	11.5%	614
3	Other defects	10.6%	565
4	Suspension	2.4%	128
5	Emissions & environmental	1.8%	95
6	Visibility	1.7%	89

Failure rate by mileage

Higher-mileage cars tend to fail more — often the most useful guide to real condition.

MOT fail rate by recorded mileage band.

Fail rate by recorded mileage — 2021 Hs Exclusive S-A
Mileage band	Tests	Fail rate
0-30k	3,289	5.3%
30-60k	1,808	10.2%
60-90k	243	10.3%

Failure rate by age

How this model-year's MOT fail rate climbs as the cars get older.

Trend over time

Fail rate by dataset year — 2021 Hs Exclusive S-A
Dataset year	Tests	Fail rate
2023	86	12.8%
2024	2,674	7.5%
2025	2,580	6.6%

What to check before buying a 2021 Hs Exclusive S-A

Before buying a 2021 Mg Hs Exclusive S-A, focus on the areas it most often fails on. Tyres accounted for 3.1% of tests for this year.

Tyres (3.1% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
Brakes (2.6% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
Lighting & signalling (1.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.

Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.

Frequently asked questions

How many 2021 Mg Hs Exclusive S-As pass their MOT?

92.8% of the 5,341 2021 Mg Hs Exclusive S-A MOT tests in this dataset passed — a 7.1% fail rate.

What is the most common MOT failure on a 2021 Mg Hs Exclusive S-A?

Tyres, recorded in 3.1% of tests, followed by brakes (2.6%).

Does the 2021 Hs Exclusive S-A get worse with mileage?

Its MOT fail rate rises from 5.3% in the 0-30k band to 10.3% in the 60-90k band.

Methodology & source. Based on 5,341 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.