Porsche Taycan S MOT pass rate & common failures

1,905 MOT tests on the Porsche Taycan S (2020–2023) give it a 92.1% pass rate. All cars of a similar age fail 9.1% of the time, so this is 1.1pp better than the group it competes with. Its most common failure areas are tyres, other defects and lighting & signalling.

Pass rate

1,905

MOT tests analysed

7.9%

Fail rate

better than

vs all cars of similar age

2020–2023

Model years covered

What the MOT record shows

One area stands out: tyres, recorded in 6.5% of tests against 0.8% for the next-worst category.

At component level the recurring items are registration plates, tread depth and headlamp aim — registration plates alone was recorded 29 times.

Tyres is the most common advisory, noted on 15.6% of tests — work that passed today but is likely due soon.

How it compares

Fail rate for the Porsche Taycan S against all cars of a similar age.

By model year

Every Taycan S model year with a usable sample. Years with their own detailed report are linked.

Porsche Taycan S MOT results by model year
Year	Tests	Pass rate	Fail rate	Most common failure
2020	1,173	92.2%	7.8%	Tyres
2021	547	92.1%	7.9%	Tyres
2022	184	91.3%	8.7%	Tyres

Most common failures (all years)

Most common MOT failure areas — Porsche Taycan S
#	Category	% of tests affected	Tests
1	Tyres	6.5%	123
2	Other defects	0.8%	16
3	Lighting & signalling	0.7%	14
4	Brakes	0.7%	13
5	Visibility	0.5%	9
6	Suspension	0.4%	7
7	Road wheels	0.2%	3
8	Seat belts & restraints	0.1%	2

Percentage of tests with at least one failure recorded in each category, across all model years.

Most common specific failures

The exact components most often recorded as failures — more specific than the categories above.

Most frequently recorded failure items — Porsche Taycan S
#	Failure item	Times recorded
1	Registration plates	29
2	Tread depth	21
3	Headlamp aim	12
4	Electronic parking brake	7
5	Washers	6
6	Ball joint	5
7	Tyre pressure monitoring system	5
8	Wipers	4

Top advisory categories

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

Most common MOT advisories — Porsche Taycan S
#	Category	% of tests with advisory	Tests
1	Tyres	15.6%	297
2	Other defects	3.4%	65
3	Visibility	2.0%	38
4	Brakes	0.6%	12
5	Road wheels	0.3%	6
6	Suspension	0.2%	4

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 — Porsche Taycan S
Mileage band	Tests	Fail rate
0-30k	1,365	6.7%
30-60k	509	10.4%

Failure rate by age

How the Taycan S's MOT fail rate climbs as the cars get older.

Trend over time

Fail rate by dataset year — Porsche Taycan S
Dataset year	Tests	Fail rate
2023	378	6.9%
2024	662	8.3%
2025	864	8.1%

What to check before buying a Porsche Taycan S

Tyres (6.5% 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.
Other defects (0.8% of tests): Miscellaneous items not in the main categories. Typical repair: varies.
Lighting & signalling (0.7% 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

What is the MOT pass rate for the Porsche Taycan S?

92.1% of the 1,905 Porsche Taycan S MOT tests in this dataset passed, a 7.9% fail rate, across model years 2020–2023.

What does the Porsche Taycan S most often fail its MOT on?

Tyres, recorded in 6.5% of tests, then other defects (0.8%).

Methodology & source. Based on 1,905 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.