Porsche 911 Turbo S S-A: MOT pass rate and reliability data

The Porsche 911 Turbo S S-A passes its MOT first time more often than the average UK car, by 17.3 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 554 individual Porsche 911 Turbo S S-A tests. Nothing here is an estimate or a survey.

The numbers

What this means if you are buying one

A 94% first-time pass rate means roughly 6 in every 100 Porsche 911 Turbo S S-As presented for MOT fail on the first attempt. That is better than average, so a well-kept example is a reasonably safe used buy. The average Porsche 911 Turbo S S-A tested had covered 13,358 miles and was built around 2020.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. The Porsche 911 Turbo S S-A sits 17.3 points above the national average, ranked 139 of 2,005 models. On one bought as repairable salvage, the mechanical side is less likely to spring surprises, so your repair estimate should hold up reasonably well.

Before you bid: run the lot through the analyzer, check the car's own record, check the mileage, decode the VIN, and if it carries a marker use the write-off value calculator. Or compare it against another model.

Looking at a specific Porsche 911 Turbo S S-A rather than the model in general? The free check covers its MOT and mileage history, and the full HPI report confirms the insurance write-off category, outstanding finance and whether it is recorded stolen, from licensed data for 5 credits. Already own one that has been damaged? Work out whether fixing it beats selling it with the repair or scrap calculator, and see recorded closing bids for damaged Porsche 911 Turbo S S-As at UK salvage auction.

Common failure reasons

We hold no separate DVSA failure-reason breakdown for the Porsche 911 Turbo S S-A itself, which fails on much the same things as most cars. National car failure mix, DVSA latest quarter:

1. Lights and electrics, 10.36% of tests
2. Suspension, 8.65% of tests
3. Tyres, 6.23% of tests
4. Brakes, 6.1% of tests
5. Visibility (wipers, washers, glass), 4.65% of tests

Most common MOT advisories on a Porsche 911 Turbo S S-A

An advisory doesn't fail the car - the tester flags it as worth watching, but it still passes. A different list from the failures above: what testers are noting on a Porsche 911 Turbo S S-A before it actually fails on it.

1. Tyre tread depth not in accordance with the requirements, 8.3% of tests
2. A tyre seriously damaged, 4.7% of tests
3. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 0.4% of tests
4. Exhaust noise levels in excess of those permitted, 0.2% of tests (2.96x the national rate for this advisory)

From 553 DVSA-tracked Porsche 911 Turbo S S-A tests, 2024.

Porsche 911 Turbo S S-A pass rate by model year

Pass rates fall steadily as cars age, so the model year matters as much as the model. First-time pass rate for each Porsche 911 Turbo S S-A year:

• 2020 Porsche 911 Turbo S S-A - 94% first-time pass, 217 tests
• 2021 Porsche 911 Turbo S S-A - 95.1% first-time pass, 287 tests

Other Porsche models

• Porsche 911 - 89%
• Porsche Boxster - 84.2%
• Porsche Macan - 92.1%
• Porsche Cayenne - 86.4%
• Porsche Cayman - 89.9%
• Porsche Panamera - 87.8%
• Porsche Taycan 4s 93kwh - 90.8%
• Porsche 944 - 77.4%

Models with a similar pass rate

• Ferrari Portofino S-A - 94%
• Ford Puma Titanium Mhev Auto - 94%
• Ford Fiesta Vignale Edition Turbo A - 94%
• Aston Martin Vantage - 93.9%
• Mazda 2 GT Sport Nav Mhev - 93.9%
• Mazda Cx-30 - 93.9%

If this car is a salvage or write-off

• What does Cat N mean? Category N explained
• What does Cat S mean? Category S explained
• Cat S vs Cat N: the real differences
• Do you need an HPI check on a car you know is a write-off?

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All 2,005 models ranked by MOT pass rate