There are philips head screws at the end of the rails, but those wont get the seat out. The 10mm bolts are inside the post at the back of the rails. Right down next to the floor. They're hard to see - you almost have to feel for them.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References