Reliability Guide
Porsche 997 IMS Bearing Guide
6 Issues — From $1,200 – $2,500.
Common Problems
IMS bearing failure (M96/M97 engine, 997.1)
Severity: High · Mileage: Any · Cost risk: High
Rear main seal (RMS) leak
Severity: Med · Mileage: 60,000+ mi · Cost risk: Med
Coolant pipe failure (plastic, early 997.1)
Severity: High · Mileage: Any age · Cost risk: High
Air Oil Separator (AOS) failure
Severity: Med · Mileage: 60,000+ mi · Cost risk: Med