2021 Citroen C3 Aircross Shine + Ptch S/S A — MOT failures & pass rate

Across 2,258 MOT tests analysed for the 2021 Citroen C3 Aircross Shine + Ptch S/S A, the most common recorded failure areas were tyres, brakes and lighting & signalling. Its pass rate of 93.8% was above the average for cars of a similar age (91.2%).

Pass rate

2,258

MOT tests analysed

6.2%

Fail rate

better than

vs cars of similar age

3.4

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 Citroen C3 Aircross Shine + Ptch S/S A
#	Category	% of tests affected	Tests
1	Tyres	3.8%	86
2	Brakes	1.4%	32
3	Lighting & signalling	1.4%	32
4	Visibility	1.0%	23
5	Suspension	0.4%	9
6	Emissions & environmental	0.3%	6

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 Citroen C3 Aircross Shine + Ptch S/S A
#	Failure item	Times recorded
1	Brake discs	23
2	Headlamp aim	22
3	Tread depth	20
4	Washers	18
5	Brake pads	17
6	Wipers	8

Top advisory categories

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

Most common MOT advisories — 2021 Citroen C3 Aircross Shine + Ptch S/S A
#	Category	% of tests with advisory	Tests
1	Tyres	18.7%	422
2	Brakes	16.5%	373
3	Other defects	4.6%	103
4	Suspension	1.4%	32
5	Visibility	1.2%	28
6	Body, structure & corrosion	1.0%	23

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 C3 Aircross Shine + Ptch S/S A
Mileage band	Tests	Fail rate
0-30k	1,852	5.7%
30-60k	383	8.9%

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 C3 Aircross Shine + Ptch S/S A
Dataset year	Tests	Fail rate
2023	51	2.0%
2024	1,145	7.5%
2025	1,061	5.1%

What to check before buying a 2021 C3 Aircross Shine + Ptch S/S A

Before buying a 2021 Citroen C3 Aircross Shine + Ptch S/S A, focus on the areas it most often fails on. Tyres accounted for 3.8% of tests for this year.

Tyres (3.8% 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 (1.4% 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.
Lighting & signalling (1.4% 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 Citroen C3 Aircross Shine + Ptch S/S As pass their MOT?

93.8% of the 2,258 2021 Citroen C3 Aircross Shine + Ptch S/S A MOT tests in this dataset passed — a 6.2% fail rate.

What is the most common MOT failure on a 2021 Citroen C3 Aircross Shine + Ptch S/S A?

Tyres, recorded in 3.8% of tests, followed by brakes (1.4%).

Does the 2021 C3 Aircross Shine + Ptch S/S A get worse with mileage?

Its MOT fail rate rises from 5.7% in the 0-30k band to 8.9% in the 30-60k band.

Methodology & source. Based on 2,258 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.