2020 Audi Rs Q3 S-A — MOT failures & pass rate

Across 881 MOT tests analysed for the 2020 Audi Rs Q3 S-A, the most common recorded failure areas were tyres, emissions & environmental and visibility. Its pass rate of 93.3% was above the average for cars of a similar age (90.6%).

Pass rate

881

MOT tests analysed

6.7%

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 Rs Q3 S-A
#	Category	% of tests affected	Tests
1	Tyres	4.9%	43
2	Emissions & environmental	1.5%	13
3	Visibility	0.8%	7
4	Lighting & signalling	0.8%	7
5	Other defects	0.4%	4
6	Brakes	0.1%	1

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 Rs Q3 S-A
#	Failure item	Times recorded
1	Tread depth	31
2	Catalyst emissions	11
3	Headlamp aim	7
4	Registration plates	6
5	Washers	5
6	Headlamp cleaning device	4

Top advisory categories

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

Most common MOT advisories — 2020 Audi Rs Q3 S-A
#	Category	% of tests with advisory	Tests
1	Tyres	15.3%	135
2	Brakes	6.9%	61
3	Other defects	5.1%	45
4	Visibility	2.4%	21
5	Road wheels	0.2%	2
6	Suspension	0.2%	2

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 Rs Q3 S-A
Mileage band	Tests	Fail rate
0-30k	480	6.3%
30-60k	377	7.2%

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 Rs Q3 S-A
Dataset year	Tests	Fail rate
2023	289	6.2%
2024	299	9.0%
2025	280	4.3%

What to check before buying a 2020 Rs Q3 S-A

Before buying a 2020 Audi Rs Q3 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.
Emissions & environmental (1.5% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
Visibility (0.8% 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 Rs Q3 S-As pass their MOT?

93.3% of the 881 2020 Audi Rs Q3 S-A MOT tests in this dataset passed — a 6.7% fail rate.

What is the most common MOT failure on a 2020 Audi Rs Q3 S-A?

Tyres, recorded in 4.9% of tests, followed by emissions & environmental (1.5%).

Does the 2020 Rs Q3 S-A get worse with mileage?

Its MOT fail rate rises from 6.3% in the 0-30k band to 7.2% in the 30-60k band.

Methodology & source. Based on 881 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.