2020 Audi Q3 35 — MOT failures & pass rate

Across 3,109 MOT tests analysed for the 2020 Audi Q3 35, the most common recorded failure areas were tyres, brakes and visibility. Its pass rate of 93.0% was above the average for cars of a similar age (90.6%). Higher-mileage examples failed more often — 9.8% in the 60-90k group versus 4.3% in the 0-30k group.

Pass rate

3,109

MOT tests analysed

7.0%

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 35
#	Category	% of tests affected	Tests
1	Tyres	4.1%	128
2	Brakes	1.9%	60
3	Visibility	1.6%	50
4	Lighting & signalling	0.5%	15
5	Seat belts & restraints	0.3%	9
6	Other defects	0.2%	7

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 35
#	Failure item	Times recorded
1	Tread depth	84
2	Brake pads	45
3	Washers	38
4	Wipers	22
5	Brake discs	18
6	Headlamp aim	15

Top advisory categories

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

Most common MOT advisories — 2020 Audi Q3 35
#	Category	% of tests with advisory	Tests
1	Tyres	26.3%	817
2	Brakes	16.2%	505
3	Other defects	9.0%	281
4	Suspension	5.0%	156
5	Visibility	2.6%	80
6	Seat belts & restraints	0.4%	11

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 35
Mileage band	Tests	Fail rate
0-30k	1,558	4.3%
30-60k	1,399	9.7%
60-90k	133	9.8%

Failure rate by age

How this model-year's MOT fail rate climbs as the cars get older.

By fuel type

Fail rate by fuel type — 2020 Q3 35
Fuel	Tests	Fail rate
Petrol	2,893	7.0%
Diesel	216	6.0%

Trend over time

Fail rate by dataset year — 2020 Q3 35
Dataset year	Tests	Fail rate
2022	52	5.8%
2023	1,016	6.0%
2024	1,002	5.6%
2025	1,038	9.3%

What to check before buying a 2020 Q3 35

Before buying a 2020 Audi Q3 35, focus on the areas it most often fails on. Tyres accounted for 4.1% of tests for this year.

Tyres (4.1% 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 (1.9% 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 (1.6% 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 35s pass their MOT?

93.0% of the 3,109 2020 Audi Q3 35 MOT tests in this dataset passed — a 7.0% fail rate.

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

Tyres, recorded in 4.1% of tests, followed by brakes (1.9%).

Does the 2020 Q3 35 get worse with mileage?

Its MOT fail rate rises from 4.3% in the 0-30k band to 9.8% in the 60-90k band.

Methodology & source. Based on 3,109 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.