2020 Audi Q3 S Line Vor 40 Quat S-A — MOT failures & pass rate

Across 1,129 MOT tests analysed for the 2020 Audi Q3 S Line Vor 40 Quat S-A, the most common recorded failure areas were tyres, brakes and visibility. Its pass rate of 92.5% was above the average for cars of a similar age (90.6%).

Pass rate

1,129

MOT tests analysed

7.5%

Fail rate

better than

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 Audi Q3 S Line Vor 40 Quat S-A
#	Category	% of tests affected	Tests
1	Tyres	4.9%	55
2	Brakes	1.4%	16
3	Visibility	1.1%	13
4	Lighting & signalling	0.8%	9
5	Suspension	0.3%	3
6	Other defects	0.2%	2

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 Audi Q3 S Line Vor 40 Quat S-A
#	Failure item	Times recorded
1	Brake pads	15
2	Washers	12
3	Registration plates	4
4	Headlamp cleaning device	4
5	Headlamp aim	4
6	Shock absorbers	3

Top advisory categories

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

Most common MOT advisories — 2020 Audi Q3 S Line Vor 40 Quat S-A
#	Category	% of tests with advisory	Tests
1	Tyres	18.9%	213
2	Brakes	16.1%	182
3	Other defects	7.4%	84
4	Suspension	3.1%	35
5	Visibility	2.7%	30
6	Emissions & environmental	0.7%	8

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 Q3 S Line Vor 40 Quat S-A
Mileage band	Tests	Fail rate
0-30k	683	5.9%
30-60k	413	10.4%
60-90k	33	6.1%

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 Q3 S Line Vor 40 Quat S-A
Dataset year	Tests	Fail rate
2023	374	7.2%
2024	371	7.5%
2025	368	8.2%

What to check before buying a 2020 Q3 S Line Vor 40 Quat S-A

Before buying a 2020 Audi Q3 S Line Vor 40 Quat S-A, 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 (1.4% 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.
Visibility (1.1% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£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 Audi Q3 S Line Vor 40 Quat S-As pass their MOT?

92.5% of the 1,129 2020 Audi Q3 S Line Vor 40 Quat S-A MOT tests in this dataset passed — a 7.5% fail rate.

What is the most common MOT failure on a 2020 Audi Q3 S Line Vor 40 Quat S-A?

Tyres, recorded in 4.9% of tests, followed by brakes (1.4%).

Does the 2020 Q3 S Line Vor 40 Quat S-A get worse with mileage?

Its MOT fail rate rises from 5.9% in the 0-30k band to 6.1% in the 60-90k band.

Methodology & source. Based on 1,129 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.