2021 Audi Q3 S Ln Blk Ed 35 Mhev Sa — MOT failures & pass rate

Across 3,044 MOT tests analysed for the 2021 Audi Q3 S Ln Blk Ed 35 Mhev Sa, the most common recorded failure areas were tyres, visibility and brakes. Its pass rate of 92.1% was in line with the average for cars of a similar age (91.2%).

Pass rate

3,044

MOT tests analysed

7.9%

Fail rate

in line with

vs cars of similar age

3.5

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 — 2021 Audi Q3 S Ln Blk Ed 35 Mhev Sa
#	Category	% of tests affected	Tests
1	Tyres	5.1%	154
2	Visibility	1.8%	54
3	Brakes	1.4%	43
4	Lighting & signalling	0.8%	25
5	Other defects	0.5%	14
6	Emissions & environmental	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 — 2021 Audi Q3 S Ln Blk Ed 35 Mhev Sa
#	Failure item	Times recorded
1	Tread depth	66
2	Washers	45
3	Brake pads	37
4	Headlamp aim	26
5	Registration plates	23
6	Wipers	11

Top advisory categories

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

Most common MOT advisories — 2021 Audi Q3 S Ln Blk Ed 35 Mhev Sa
#	Category	% of tests with advisory	Tests
1	Tyres	19.0%	578
2	Other defects	11.2%	342
3	Brakes	10.2%	309
4	Suspension	4.3%	131
5	Visibility	2.8%	84
6	Lighting & signalling	0.2%	7

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 — 2021 Q3 S Ln Blk Ed 35 Mhev Sa
Mileage band	Tests	Fail rate
0-30k	1,737	7.0%
30-60k	1,207	8.9%
60-90k	96	11.5%

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 — 2021 Q3 S Ln Blk Ed 35 Mhev Sa
Fuel	Tests	Fail rate
Petrol	3,001	7.9%
Hybrid	43	7.0%

Trend over time

Fail rate by dataset year — 2021 Q3 S Ln Blk Ed 35 Mhev Sa
Dataset year	Tests	Fail rate
2024	1,518	8.8%
2025	1,506	7.2%

What to check before buying a 2021 Q3 S Ln Blk Ed 35 Mhev Sa

Before buying a 2021 Audi Q3 S Ln Blk Ed 35 Mhev Sa, focus on the areas it most often fails on. Tyres accounted for 5.1% of tests for this year.

Tyres (5.1% 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.
Visibility (1.8% 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.
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.

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 2021 Audi Q3 S Ln Blk Ed 35 Mhev Sas pass their MOT?

92.1% of the 3,044 2021 Audi Q3 S Ln Blk Ed 35 Mhev Sa MOT tests in this dataset passed — a 7.9% fail rate.

What is the most common MOT failure on a 2021 Audi Q3 S Ln Blk Ed 35 Mhev Sa?

Tyres, recorded in 5.1% of tests, followed by visibility (1.8%).

Does the 2021 Q3 S Ln Blk Ed 35 Mhev Sa get worse with mileage?

Its MOT fail rate rises from 7.0% in the 0-30k band to 11.5% in the 60-90k band.

Methodology & source. Based on 3,044 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.