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Because while the engine and drive train are good it is a POS plain and simple. Whatever engineers designed these cars should be taken out and shot. Moreover the failures were never or in case of some re-engineered. VW should pay out at least $10,000 US dollars to every owner secondary owner 3rd on until the last owner scraped the huge POS. And believe me this is just the start of your problems FOR REAL!!!
lol, we take the blame but 99% of the time people don't want to pay for good engineering. It's somewhat ironic considering the Passat is already "overengineered" for the price point it sold at and now you're suggesting people should get reimbursed despite already getting more than they paid for.
Don't get me wrong, I totally understand where you're coming from and I feel your frustration but you have to understand this probably isn't "an engineering thing".
Take for instance the water leak. There's no doubt in my mind that engineers on the job of guttering the sunroof didn't question the use of a slip on attachment to the drain port. It should be attached by a clamp but that adds cost and complexity to assembly. Request denied.
The cabin filter carrier is only held down by 3 bolts, it's not rocket science to know 6 is better. A cork gasket and an aluminum tray is more durable than a plastic foam one but it's adds cost. Request denied.
Mechanics get it worse because "ease of repair" is the first thing to go when you get asked to cut costs. Nobody is going to approved making a change to the design because 50,000 miles down the road a mechanic might need to take an extra hour to drop the subframe to get at a bolt. The assembly process dictates cost, not the disassembly process. Request denied.
You can get what you want but like everything it comes as a cost. js