Quote Originally Posted by JeffYoung View Post
Dan, I think we are on the same page. Obviously, if the subframe mounts pull loose an E36, you fix them by welding in a replacement metal plate. That is in my mind legal. Two things are not:

1. Performing the repair prior to a failure.

2. Doing anything other than what is minimally necessary to fix the issue.

But again, I think that is what you said and I believe that both Jeff L. and I would agree that is legal.
why wait until failure? and how is failure defined? is it when the mount rips our in a high speed corner and causes a crash? is it when you think you might be able to see something that might be a crack? and how do you tell after the repair has been done whether or not there was a prior failure?

bottom line, nobody wants to wait until ultimate failure...dangerous and 10x more difficult to fix. if the repair is a standard factory procedure and uses standard factory parts i don't see a problem with doing it prior to catastrophic incident. non standard "creative' preventative repairs...no way. standard factory fixes for known issues..go for it.