Plastic coolant pipes (4.5 V8)
Signs: Coolant loss from the engine valley
Fix: Replace with aluminium pipes
Petrol · 4,511 / 4,806 cm³ · 250–368 kW
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
Fuel: Petrol. Timing drive: chain.
In our database this engine is fitted to 2 model generations, among them: Porsche Cayenne (958 / 9Y0), Porsche Cayenne (955 / 957).
The most expensive known risk is plastic coolant pipes (4.5 V8): it usually appears at 80,000–160,000 km and costs €1,200–2,500 to fix.
| Fuel | Petrol |
|---|---|
| Displacement | 4,511 / 4,806 cm³ |
| Power | 250–368 kW |
| Years | 2003–2018 |
| Timing drive | Chain |
| Oil | 0W-40 · Porsche A40 · ~9.0–10.0 L · every 15,000 km |
| Engine codes | M48.00, M48.01, M48.50, M48.51 |
Faults that belong to the engine itself. They apply to every model with this engine, and each model has its own extra faults on its model page.
Signs: Coolant loss from the engine valley
Fix: Replace with aluminium pipes
Signs: Vibration, clunk pulling away
Fix: Replace driveshaft or bearing
Signs: Car sits low, compressor runs long
Fix: Replace strut / compressor
Intervals and typical prices, using the Porsche Cayenne (958 / 9Y0) as an example. The app gives the exact plan for your car.
| Item | Interval | Typical price |
|---|---|---|
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
Model generations this engine is fitted to.
Porsche Cayenne (955 / 957) 2002–2010Porsche Cayenne (958 / 9Y0) 2010–
Chain.
0W-40 · Porsche A40 · ~9.0–10.0 L · every 15,000 km.
The faults with the highest risk: plastic coolant pipes (4.5 V8) (80,000–160,000 km, €1,200–2,500); air suspension (100,000–180,000 km, €800–2,500); driveshaft centre bearing (80,000–160,000 km, €600–1,500).
Porsche Cayenne (958 / 9Y0), Porsche Cayenne (955 / 957).
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles.
Updated 08/10/2026