2021 Vauxhall Grandland X Griffin T — MOT failures & pass rate

Across 4,035 MOT tests analysed for the 2021 Vauxhall Grandland X Griffin T, the most common recorded failure areas were tyres, brakes and lighting & signalling. Its pass rate of 91.2% was in line with the average for cars of a similar age (91.2%). Higher-mileage examples failed more often — 13.8% in the 60-90k group versus 7.5% in the 0-30k group.

Pass rate

4,035

MOT tests analysed

8.8%

Fail rate

in line with

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 Vauxhall Grandland X Griffin T
#	Category	% of tests affected	Tests
1	Tyres	5.1%	208
2	Brakes	2.8%	111
3	Lighting & signalling	1.3%	54
4	Visibility	1.3%	52
5	Suspension	0.4%	18
6	Seat belts & restraints	0.4%	17

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 Vauxhall Grandland X Griffin T
#	Failure item	Times recorded
1	Tread depth	224
2	Brake pads	55
3	Brake discs	44
4	Headlamp aim	36
5	Service brake performance	32
6	Washers	31

Top advisory categories

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

Most common MOT advisories — 2021 Vauxhall Grandland X Griffin T
#	Category	% of tests with advisory	Tests
1	Tyres	24.1%	971
2	Brakes	19.3%	780
3	Other defects	7.5%	302
4	Visibility	1.7%	70
5	Body, structure & corrosion	1.6%	64
6	Emissions & environmental	0.8%	33

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 Grandland X Griffin T
Mileage band	Tests	Fail rate
0-30k	2,484	7.5%
30-60k	1,489	10.7%
60-90k	58	13.8%

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 Grandland X Griffin T
Dataset year	Tests	Fail rate
2023	43	2.3%
2024	1,991	9.0%
2025	2,001	8.6%

What to check before buying a 2021 Grandland X Griffin T

Before buying a 2021 Vauxhall Grandland X Griffin T, focus on the areas it most often fails on. Tyres accounted for 5.1% of tests for this year.

Tyres (5.1% 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 (2.8% 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 (1.3% 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 Vauxhall Grandland X Griffin Ts pass their MOT?

91.2% of the 4,035 2021 Vauxhall Grandland X Griffin T MOT tests in this dataset passed — a 8.8% fail rate.

What is the most common MOT failure on a 2021 Vauxhall Grandland X Griffin T?

Tyres, recorded in 5.1% of tests, followed by brakes (2.8%).

Does the 2021 Grandland X Griffin T get worse with mileage?

Its MOT fail rate rises from 7.5% in the 0-30k band to 13.8% in the 60-90k band.

Methodology & source. Based on 4,035 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.