2020 Audi Q3 S Line 1 35 — MOT failures & pass rate

Across 889 MOT tests analysed for the 2020 Audi Q3 S Line 1 35, the most common recorded failure areas were tyres, visibility and brakes. Its pass rate of 93.4% was above the average for cars of a similar age (90.6%).

Pass rate

889

MOT tests analysed

6.6%

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 1 35
#	Category	% of tests affected	Tests
1	Tyres	3.3%	29
2	Visibility	1.7%	15
3	Brakes	1.5%	13
4	Lighting & signalling	0.9%	8
5	Other defects	0.3%	3
6	Seat belts & restraints	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 Q3 S Line 1 35
#	Failure item	Times recorded
1	Brake pads	12
2	Washers	12
3	Tread depth	6
4	Headlamp aim	6
5	Registration plates	5
6	Wipers	4

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 1 35
#	Category	% of tests with advisory	Tests
1	Tyres	23.4%	208
2	Brakes	14.2%	126
3	Other defects	9.4%	84
4	Suspension	4.5%	40
5	Visibility	2.5%	22
6	Lighting & signalling	0.3%	3

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 1 35
Mileage band	Tests	Fail rate
0-30k	475	6.1%
30-60k	384	7.0%

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 1 35
Dataset year	Tests	Fail rate
2023	296	6.1%
2024	284	6.0%
2025	300	8.0%

What to check before buying a 2020 Q3 S Line 1 35

Before buying a 2020 Audi Q3 S Line 1 35, focus on the areas it most often fails on. Tyres accounted for 3.3% of tests for this year.

Tyres (3.3% 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.
Visibility (1.7% 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.
Brakes (1.5% 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.

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 1 35s pass their MOT?

93.4% of the 889 2020 Audi Q3 S Line 1 35 MOT tests in this dataset passed — a 6.6% fail rate.

What is the most common MOT failure on a 2020 Audi Q3 S Line 1 35?

Tyres, recorded in 3.3% of tests, followed by visibility (1.7%).

Does the 2020 Q3 S Line 1 35 get worse with mileage?

Its MOT fail rate rises from 6.1% in the 0-30k band to 7.0% in the 30-60k band.

Methodology & source. Based on 889 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.