Question 1

What is Plastic Coolant Pipe Failure (955 V8) on the Porsche Porsche Cayenne (955/957)?

Accepted Answer

The original plastic pipes under the intake manifold fail and leak coolant onto the starter motor.

Question 2

What is Bore Scoring (4.5 V8) on the Porsche Porsche Cayenne (955/957)?

Accepted Answer

Catastrophic wear to the cylinder liners, most common on early 4.5L V8 engines.

Question 3

What is Driveshaft Carrier Bearing Failure on the Porsche Porsche Cayenne (955/957)?

Accepted Answer

The 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.

Question 4

What should I check when buying a used Porsche Porsche Cayenne (955/957)?

Accepted Answer

On 955 V8s, verify if the plastic coolant pipes have been upgraded to aluminium.

Question 5

What should I check when buying a used Porsche Porsche Cayenne (955/957)?

Accepted Answer

Listen for a "thumping" under the centre console, indicating a failed propshaft bearing.

Question 6

What should I check when buying a used Porsche Porsche Cayenne (955/957)?

Accepted Answer

Check the carpets for dampness; clogged drains can flood the ECU/wiring.

Question 7

What years was the Porsche Porsche Cayenne (955/957) made?

Accepted Answer

The Porsche Porsche Cayenne (955/957) was produced from 2003 to 2010.

Porsche Porsche Cayenne (955/957)

Porsche Cayenne (955/957) Reliability & Common Faults

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