2020 Ds Ds7 C-Back Pfrmnc Ln Bhdi Ss A — MOT failures & pass rate

Across 305 MOT tests analysed for the 2020 Ds Ds7 C-Back Pfrmnc Ln Bhdi Ss A, the most common recorded failure areas were tyres, lighting & signalling and brakes. Its pass rate of 85.6% was below the average for cars of a similar age (90.5%). Higher-mileage examples failed more often — 16.7% in the 60-90k group versus 8.3% in the 0-30k group.

Pass rate

305

MOT tests analysed

14.4%

Fail rate

worse 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 Ds Ds7 C-Back Pfrmnc Ln Bhdi Ss A
#	Category	% of tests affected	Tests
1	Tyres	5.6%	17
2	Lighting & signalling	4.6%	14
3	Brakes	3.6%	11
4	Suspension	2.6%	8
5	Visibility	2.0%	6
6	Body, structure & corrosion	1.3%	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 — 2020 Ds Ds7 C-Back Pfrmnc Ln Bhdi Ss A
#	Failure item	Times recorded
1	Tread depth	8
2	Brake pads	8
3	Pins and bushes	7
4	Headlamp aim	6
5	Daytime running lamps	6
6	Position lamp	6

Top advisory categories

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

Most common MOT advisories — 2020 Ds Ds7 C-Back Pfrmnc Ln Bhdi Ss A
#	Category	% of tests with advisory	Tests
1	Tyres	28.5%	87
2	Brakes	18.7%	57
3	Other defects	7.2%	22
4	Visibility	5.6%	17
5	Body, structure & corrosion	5.3%	16
6	Suspension	2.6%	8

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 Ds7 C-Back Pfrmnc Ln Bhdi Ss A
Mileage band	Tests	Fail rate
0-30k	97	8.3%
30-60k	160	18.1%
60-90k	42	16.7%

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 Ds7 C-Back Pfrmnc Ln Bhdi Ss A
Dataset year	Tests	Fail rate
2023	96	12.5%
2024	104	16.4%
2025	103	14.6%

What to check before buying a 2020 Ds7 C-Back Pfrmnc Ln Bhdi Ss A

Before buying a 2020 Ds Ds7 C-Back Pfrmnc Ln Bhdi Ss A, focus on the areas it most often fails on. Tyres accounted for 5.6% of tests for this year.

Tyres (5.6% 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.
Lighting & signalling (4.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
Brakes (3.6% 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 Ds Ds7 C-Back Pfrmnc Ln Bhdi Ss As pass their MOT?

85.6% of the 305 2020 Ds Ds7 C-Back Pfrmnc Ln Bhdi Ss A MOT tests in this dataset passed — a 14.4% fail rate.

What is the most common MOT failure on a 2020 Ds Ds7 C-Back Pfrmnc Ln Bhdi Ss A?

Tyres, recorded in 5.6% of tests, followed by lighting & signalling (4.6%).

Does the 2020 Ds7 C-Back Pfrmnc Ln Bhdi Ss A get worse with mileage?

Its MOT fail rate rises from 8.3% in the 0-30k band to 16.7% in the 60-90k band.

Methodology & source. Based on 305 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.