2021 Audi Q5 S Ln Ed 1 50 E Quat Sa — MOT failures & pass rate

Across 1,130 MOT tests analysed for the 2021 Audi Q5 S Ln Ed 1 50 E Quat Sa, the most common recorded failure areas were tyres, body, structure & corrosion and lighting & signalling. Its pass rate of 93.8% was above the average for cars of a similar age (91.2%).

Pass rate

1,130

MOT tests analysed

6.2%

Fail rate

better than

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 Q5 S Ln Ed 1 50 E Quat Sa
#	Category	% of tests affected	Tests
1	Tyres	3.5%	40
2	Body, structure & corrosion	1.1%	12
3	Lighting & signalling	0.9%	10
4	Visibility	0.6%	7
5	Other defects	0.4%	4
6	Seat belts & restraints	0.4%	4

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 Q5 S Ln Ed 1 50 E Quat Sa
#	Failure item	Times recorded
1	Joints	14
2	Tread depth	10
3	Headlamp aim	8
4	Registration plates	7
5	Washers	6
6	Pipe	2

Top advisory categories

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

Most common MOT advisories — 2021 Audi Q5 S Ln Ed 1 50 E Quat Sa
#	Category	% of tests with advisory	Tests
1	Tyres	16.4%	185
2	Other defects	7.7%	87
3	Visibility	3.5%	39
4	Brakes	3.1%	35
5	Suspension	1.5%	17
6	Body, structure & corrosion	0.5%	6

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 Q5 S Ln Ed 1 50 E Quat Sa
Mileage band	Tests	Fail rate
0-30k	461	5.9%
30-60k	543	5.9%
60-90k	110	9.1%

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 — 2021 Q5 S Ln Ed 1 50 E Quat Sa
Dataset year	Tests	Fail rate
2024	553	5.8%
2025	570	6.7%

What to check before buying a 2021 Q5 S Ln Ed 1 50 E Quat Sa

Before buying a 2021 Audi Q5 S Ln Ed 1 50 E Quat Sa, focus on the areas it most often fails on. Tyres accounted for 3.5% of tests for this year.

Tyres (3.5% 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.
Body, structure & corrosion (1.1% of tests): The one to take seriously on older cars — corrosion to structural areas can be costly and is an MOT failure. Typical repair: £200–£1,500+.
Lighting & signalling (0.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£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 2021 Audi Q5 S Ln Ed 1 50 E Quat Sas pass their MOT?

93.8% of the 1,130 2021 Audi Q5 S Ln Ed 1 50 E Quat Sa MOT tests in this dataset passed — a 6.2% fail rate.

What is the most common MOT failure on a 2021 Audi Q5 S Ln Ed 1 50 E Quat Sa?

Tyres, recorded in 3.5% of tests, followed by body, structure & corrosion (1.1%).

Does the 2021 Q5 S Ln Ed 1 50 E Quat Sa get worse with mileage?

Its MOT fail rate rises from 5.9% in the 0-30k band to 9.1% in the 60-90k band.

Methodology & source. Based on 1,130 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.