Porsche

Porsche Cayenne (2008)

890 real MOT outcomes analysed • 84% first-time pass rate

2008 Porsche Cayenne

CarHunch analysed 890 real MOT records for the 2008 Porsche Cayenne. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2008 Porsche Cayenne passes its MOT first time at 83.5%, which is above the UK average of 80%, but the headline concern is that 27.2% of these vehicles have recorded a dangerous defect at some point—well above the acceptable threshold. This suggests structural or safety issues are common enough in this age and model that buyers should factor in higher-than-normal repair costs and thorough pre-purchase inspection.

At 70,434 miles on average, these Cayennes have moderate mileage for their age, yet they're accumulating 2.3 failures and 11.7 advisories per test—meaning routine maintenance is demanding and small problems pile up quickly. Before buying, commission a specialist Porsche inspection focused on suspension, cooling, and electrical systems, as advisory patterns on high-value SUVs like this one typically signal expensive wear items rather than one-off issues.

The 2008 Porsche Cayenne has a decent first-time pass rate (84%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
84%
UK average ~80%
Around average
Dangerous (ever)
27.2%
At least once in MOT history
Check this vehicle
Avg failures / car
2.3
Over 13 tests on record
High
Typical mileage
68k
Middle half: 48k–87k
For context
🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.
🔧 Expect consumable spend. An average of 11.7 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 890 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Watch for defects — worth knowing

What tends to go wrong

Across 890 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Brake wear 56.6%
Front Brake pad(s) wearing thin · Rear Brake pad(s) wearing thin · Offside Front Brake hose slightly deteriorated · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Other issues 41.6%
Under-trays fitted obscuring some underside components · Engine covers fitted obscuring some components in the engine bay · Oil leak, but not excessive · …
Tyre wear 38.7%
Offside Rear Tyre worn close to the legal limit · Nearside Rear Tyre worn close to the legal limit · Nearside Rear Tyre worn close to legal limit/worn on edge · …
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Data covers a 3-year window centred on 2008.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 890 Porsche Cayenne cars.

UK

Before you buy a 2008 Porsche Cayenne

Based on MOT data from 890 vehicles — here's what to check.

  • 📋 Check the full MOT history. 27.2% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (99%) 879 84% 2.32

Colour Breakdown

Based on 39,605 Porsche Cayenne vehicles registered in the UK — across all years. From DVLA registration records.

Black 47.2%
18,693
Grey 15.3%
6,041
White 12.4%
4,920
Silver 10.4%
4,103
Blue 9.1%
3,596
Red 1.7%
680
Brown 1.6%
626
Green 0.7%
286
Beige 0.6%
240
Purple 0.5%
204
Orange 0.4%
167
Gold 0.1%
49

Mileage Distribution

Most 2008 Porsche Cayenne vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

68,333
typical
47,940
low mileage
87,182
high mileage

Half of all 2008 Porsche Cayenne vehicles fall between 47,940 and 87,182 miles.

Is the mileage you're seeing normal?
Under 47,940 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
47,940–87,182 miles — normal for age. This is where most 2008 Porsche Cayennes sit.
Over 117,695 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2008 Porsche Cayenne — Still on the Road

Most 2008 Porsche Cayennes are still being driven.

Strong survival — 512 vehicles still getting MOTs in 2025, 80% of the peak.

635 512 2014 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

13
Avg MOT tests per vehicle
2.3
Avg failures per vehicle
11.7
Avg advisories per vehicle
Other model years — Porsche Cayenne: All Cayenne years → Which year to buy? →
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Watch for defects — worth knowing