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      03-01-2013, 07:02 PM   #42
Artmasterx
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Quote:
Originally Posted by Saintor View Post
Exclusing everybody < 60000 miles, 77% didn't have any issue.

23% failure is HIGH and obvious recommendation would be a preventive change if you intend to keep the car.

Except vbefore doing so, we would definitely need separate the following.
2006
2007+ N52
N54

Again, I don't think that the 2nd category would necessarily need this, but 1st and 3rd - yes.
I agree that it would be good to separate it out by engine, but it is challenging enough to get enough responses to make a conclusion.

Let's see if we can accumulate a few hundred more votes.

The picture is clearly very sketchy at the high mileages, but having 40-50% failed by 100k miles seems possible based on the limited data so far.

The N52 survey mentioned in the OP showed about 25% failed (~40 of 160), though failure mileage was not tracked directly.
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