2015 Porsche macan — MOT failures & pass rate
19,652 MOT tests on the 2015 Porsche macan are in this dataset, and 90.5% of them passed. Against mid-size SUVs of a similar age (15.8% fail rate), the 2015 macan comes out 6.3pp better. Failures cluster in tyres, body, structure & corrosion and lighting & signalling.
What the MOT record shows
No single area dominates — tyres (3.5%) and body, structure & corrosion (2.7%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are joints, tread depth and headlamp aim — joints alone was recorded 593 times.
A 150k+ example is materially riskier than a 0-30k one: 14.1% versus 4.9%.
The petrol cars hold up better: 8.3% fail against 10.1% for diesel, a 1.7-point gap across 19,652 tests.
Tyres is the most common advisory, noted on 17.4% of tests — work that passed today but is likely due soon.
The trend is worsening — 7.1% of tests failed in 2021 against 11.6% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 3.5% | 678 |
| 2 | Body, structure & corrosion | 2.7% | 532 |
| 3 | Lighting & signalling | 2.6% | 515 |
| 4 | Suspension | 1.5% | 298 |
| 5 | Brakes | 1.3% | 247 |
| 6 | Visibility | 1.0% | 200 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Joints | 593 |
| 2 | Tread depth | 342 |
| 3 | Headlamp aim | 293 |
| 4 | Pins and bushes | 186 |
| 5 | Headlamp | 173 |
| 6 | Brake pads | 161 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 17.4% | 3,430 |
| 2 | Brakes | 8.8% | 1,728 |
| 3 | Suspension | 8.0% | 1,573 |
| 4 | Other defects | 5.0% | 982 |
| 5 | Visibility | 2.3% | 460 |
| 6 | Body, structure & corrosion | 1.7% | 335 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 1,704 | 4.9% |
| 30-60k | 8,328 | 7.8% |
| 60-90k | 6,948 | 11.1% |
| 90-120k | 2,188 | 14.3% |
| 120-150k | 406 | 13.1% |
| 150k+ | 78 | 14.1% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 13,844 | 10.1% |
| Petrol | 5,808 | 8.3% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 3,859 | 7.1% |
| 2022 | 3,851 | 8.0% |
| 2023 | 3,917 | 9.4% |
| 2024 | 3,990 | 11.6% |
| 2025 | 4,035 | 11.6% |
What to check before buying a 2015 macan
The failure pattern for this year is specific enough to inspect against: tyres accounted for 3.5% of tests. Start there.
- 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 (2.7% 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 (2.6% 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 2015 Porsche macans pass their MOT?
90.5% of the 19,652 2015 Porsche macan MOT tests in this dataset passed — a 9.6% fail rate.
What is the most common MOT failure on a 2015 Porsche macan?
Tyres, recorded in 3.5% of tests, followed by body, structure & corrosion (2.7%).
Does the 2015 macan get worse with mileage?
Its MOT fail rate rises from 4.9% in the 0-30k band to 14.1% in the 150k+ band.
Methodology & source. Based on 19,652 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.