2003–2006 Porsche Cayenne (955/957)
Browse our directory of 2003–2006 Porsche Cayenne (955/957) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Common Problems & Reliability
The 2003–2006 Porsche Cayenne (955/957) has 3 known issues. 2 of these are classified as serious faults that could be expensive to repair. 1 are moderate concerns worth inspecting before purchase.
Plastic Coolant Pipe Failure (955 V8)
SeriousThe original plastic pipes under the intake manifold fail and leak coolant onto the starter motor.
Symptoms: Sudden coolant loss, Steam from the engine bay
Est. repair cost: £1,200–£1,600
Bore Scoring (4.5 V8)
SeriousCatastrophic wear to the cylinder liners, most common on early 4.5L V8 engines.
Symptoms: Ticking noise, High oil consumption...
Est. repair cost: £6,000–£10,000+
Driveshaft Carrier Bearing Failure
ModerateThe centre support bearing on the cardan shaft fails, causing a thumping noise under the centre console. A near-certain failure point on all 955/957 models.
Symptoms: Thumping under centre console, Vibration during acceleration...
Est. repair cost: £300–£600
Buying Tips for the 2003–2006 Porsche Cayenne (955/957)
- ✓On 955 V8s, verify if the plastic coolant pipes have been upgraded to aluminium.
- ✓Listen for a "thumping" under the centre console, indicating a failed propshaft bearing.
- ✓Check the carpets for dampness; clogged drains can flood the ECU/wiring.
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