VW has no fuel tanks for 2021 Passat. I have been waiting for over a year. I have used epoxy to seal the leakage but it only lasts five or more months. When the epoxy wears down, I then must smell the gas until I use it all. Then I crawl under the Passat and take all the shielding off that protects the gas tank’s sides except for the front which is where it is needed. I then pry off as much old epoxy as I can, then I sand it all down to the gas tank and apply it again and wait five months to do it all again.