2020 Vauxhall Astra Vx Line Turbo D — MOT failures & pass rate

Across 898 MOT tests analysed for the 2020 Vauxhall Astra Vx Line Turbo D, the most common recorded failure areas were tyres, brakes and lighting & signalling. Its pass rate of 89.6% was in line with the average for cars of a similar age (90.5%). Higher-mileage examples failed more often — 16.5% in the 60-90k group versus 5.7% in the 0-30k group.

Pass rate

898

MOT tests analysed

10.4%

Fail rate

in line with

vs cars of similar age

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 — 2020 Vauxhall Astra Vx Line Turbo D
#	Category	% of tests affected	Tests
1	Tyres	4.9%	44
2	Brakes	4.1%	37
3	Lighting & signalling	2.2%	20
4	Emissions & environmental	1.8%	16
5	Visibility	1.7%	15
6	Steering	0.4%	4

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 — 2020 Vauxhall Astra Vx Line Turbo D
#	Failure item	Times recorded
1	Brake pads	35
2	Malfunction indicator lamp	15
3	Tread depth	13
4	Headlamp aim	12
5	Washers	12
6	Brake discs	9

Top advisory categories

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

Most common MOT advisories — 2020 Vauxhall Astra Vx Line Turbo D
#	Category	% of tests with advisory	Tests
1	Tyres	23.3%	209
2	Brakes	19.8%	178
3	Other defects	5.6%	50
4	Visibility	2.0%	18
5	Lighting & signalling	1.0%	9
6	Road wheels	1.0%	9

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 — 2020 Astra Vx Line Turbo D
Mileage band	Tests	Fail rate
0-30k	406	5.7%
30-60k	405	13.8%
60-90k	79	16.5%

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 — 2020 Astra Vx Line Turbo D
Dataset year	Tests	Fail rate
2023	291	7.6%
2024	303	10.9%
2025	297	12.1%

What to check before buying a 2020 Astra Vx Line Turbo D

Before buying a 2020 Vauxhall Astra Vx Line Turbo D, focus on the areas it most often fails on. Tyres accounted for 4.9% of tests for this year.

Tyres (4.9% 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 (4.1% 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 (2.2% 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 2020 Vauxhall Astra Vx Line Turbo Ds pass their MOT?

89.6% of the 898 2020 Vauxhall Astra Vx Line Turbo D MOT tests in this dataset passed — a 10.4% fail rate.

What is the most common MOT failure on a 2020 Vauxhall Astra Vx Line Turbo D?

Tyres, recorded in 4.9% of tests, followed by brakes (4.1%).

Does the 2020 Astra Vx Line Turbo D get worse with mileage?

Its MOT fail rate rises from 5.7% in the 0-30k band to 16.5% in the 60-90k band.

Methodology & source. Based on 898 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.