So, if you're not an OE certified shop, you are a 'back-yard hack'? Not much middle ground with you.
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No matter what you or VW or any one else says, the OEs cannot possibly ensure the quality of work being done to their cars outside of their warranty process. And frankly it's none of their business. That is the domain of the regulators. In the end, as long as there are auto wrecking yards, the parts will be available. So in some ways, the OE's position on structural parts could actually make the situation even worse. But they don't care about that, do they?
I do have one question; What is the hourly repair rate at your 'certified shops'?