The M96/M97 Carrera engine has had a checkered past when it comes to reliability. One of the weaknesses identified in recent years by Porsche has been the intermediate shaft bearing (IMS bearing), which supports the intermediate shaft on the flywheel end of the motor.

Porsche designed these motors using a sealed ball bearing that is pressed into the intermediate shaft. These types of bearings are typically used in devices like copy machines and other machinery used in dry conditions. In theory, the area where Porsche designed the bearing to sit is supposed to be dry. However, after years of use within the engine, it would appear that oil and contaminants from the engine seep past the bearing seal, wash out the original lubricant, and become trapped inside. The result is that the bearing now operates in a less-than-ideal environment and begins to wear prematurely and may eventually cause significant damage to the engine.

We have spent numerous hours to provide you with the most detailed step-by-step DIY with clear pictures of each step. If you are considering this project, check out the article and let us know what questions you have along the way.

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Click here-> IMS Bearing Replacement DIY