Porsche Cayenne V6 Diesel Tiptronic S (2015)
2015 Porsche Cayenne V6 Diesel Tiptronic S
CarHunch analysed 160 real MOT records for the 2015 Porsche Cayenne V6 Diesel Tiptronic S. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2015 Porsche Cayenne V6 diesel has a first-time MOT pass rate of just 39.9%, less than half the UK average of 80%, which is a serious red flag for reliability. The good news is that no vehicles in this cohort have ever recorded a dangerous defect, so safety isn't the issue—it's persistent minor failures that keep sending owners back for remedial work.
With a median mileage of 76,434 miles at nine years old, these Cayennes are running fairly typical miles for their age, yet they're still racking up defects at a troubling rate. If you're considering buying one, budget for repeat visits to a specialist diesel technician and factor in the cost of addressing whatever's failing on the first attempt—don't expect to pass on your second try.
What to check before buying a 2015 Porsche Cayenne V6 Diesel Tiptronic S
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Porsche Cayenne V6 Diesel Tiptronic S
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (99%) | 158 | 39.3% | 0.2 |
| Diesel (1%) | 1 | 100% | 0 |
| Gas Bi-Fuel (1%) | 1 | 75% | 1 |
Mileage Distribution
Most 2015 Porsche Cayenne V6 Diesel Tiptronic S vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2015 Porsche Cayenne V6 Diesel Tiptronic S vehicles fall between 62,957 and 94,033 miles.
2015 Porsche Cayenne V6 Diesel Tiptronic S — Still on the Road
Strong survival — 53 vehicles still getting MOTs in 2025, 100% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2019–2025.
MOT History Averages
Found a specific Porsche Cayenne V6 Diesel Tiptronic S?
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Other model years — Porsche Cayenne V6 Diesel Tiptronic S: