Porsche Intermediate Shaft (IMS) Bearing 101
Typical IMS Failure Mileage: Really Anytime – The lower the mileage the worse off you are from our experience. DO NOT SAY I WISH I WOULD HAVE DONE THIS!
Vehicles Affected: 1997-2008 Porsche Vehicles with M96/M97 Engine – Boxster, 996, Cayman, 997 – GT Cars and 911 Turbos not relevant to this information below.
The first thing to know about your Porsche M96/M97 engine is not IF the intermediate shaft (IMS) bearing will fail but WHEN the IMS bearing will fail. When the IMS bearing fails your engine will be destroyed so it is advised that you take action now.