The IMS issue is basically a bearing that can fail in the engine and destroy the engine in the process. While there is no hard data on the actual number of cars affected, it is generally estimated at between 2 and 5 %. Some peeps lay awake at night worrying about it, others never give it a thought. I would be in the latter group.
There was no fix forthcoming from Porsche for the 986. There is a company, LN Engineering, that make an upgraded bearing that can be retrofitted and is said to solve the problem. Most people do that upgrade at the same time they do the clutch and RMS. I expect that's when I'll do it. In there anyway, why not?
Dunno what the life of the clutch is - haven't worn mine out yet. As I'm at 130000 km I expect it will be within the next couple of years.
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'99 black 986
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