Originally Posted by Saintor
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.
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.