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Ronzi · 01-19-2006, 08:56 AM

I don't think the issue is whether or not the RMS ultimately leaks. It's probably like a water pump. Every car that has one will ultimately suffer a water pump failure. But that doesn't necessarily mean the pump or it's design was defective.
The question is one of premature failure.
What, then, is premature failue?
We could probably all agree that RMS failure at 20k miles would be premature.
How about 50K miles?
How about 50K miles with a (gasp) RACING or DE history?
How about 80K miles?
Etc.
If we ever see the results of this "survey" that is presumably being conducted independantly of Porsche, we may get a few answers, such as are the newer cars statistically less likely to experience RMS failure, or failure at increased mileage. I suspect this is the case but obviously I have no data to back up that opinion.
This issue is probably much like the 911 timing chain tensioner situation from years ago, mentioned earlier on this thread. Porsche made a series of design changes that over time resulted in the elimination of the problem, but it took a while.

01-19-2006, 08:56 AM	#6
Ronzi Registered User Join Date: May 2004 Location: Denver CO Posts: 748	I don't think the issue is whether or not the RMS ultimately leaks. It's probably like a water pump. Every car that has one will ultimately suffer a water pump failure. But that doesn't necessarily mean the pump or it's design was defective. The question is one of premature failure. What, then, is premature failue? We could probably all agree that RMS failure at 20k miles would be premature. How about 50K miles? How about 50K miles with a (gasp) RACING or DE history? How about 80K miles? Etc. If we ever see the results of this "survey" that is presumably being conducted independantly of Porsche, we may get a few answers, such as are the newer cars statistically less likely to experience RMS failure, or failure at increased mileage. I suspect this is the case but obviously I have no data to back up that opinion. This issue is probably much like the 911 timing chain tensioner situation from years ago, mentioned earlier on this thread. Porsche made a series of design changes that over time resulted in the elimination of the problem, but it took a while.