TexasLeaf wrote:There is a very large gap at the bottom of the panel with the vents in the trunk. The gap does all the way around the edge at the bottom of the trunk.
I removed the sub-wolfer and taped up this gap and the grilles and ran the AC in Fresh Air mode again. I couldn't really tell any difference in air flow from without the tape. My tissue test seemed to indicate that air was going under the rear seat.
I thought there might be an air opening through the floor under the rear seat so I pulled the rear seat. It's easy enough to remove the rear seat, all you have to do is pull up on the front. There are not any air openings through the floor under the rear seat.
Even though the unit was in Fresh Air mode, I thought that air might be getting back to the fan through the return air opening in the AC unit. I found the return air opening above the drivers feet. With the AC in Recirculate mode my tissue pulled up into the return opening but with the AC in Fresh Air mode my tissue was limp.
So even with the grilles in the trunk taped up air still gets out of the car somehow. I tried the tissue test on the Service Plug port with the trunk grilles taped up. With the AC in Recirculate mode the tissue would just hang limp in the open port but when I turned the AC to Fresh Air mode the tissue really flapped away in the port.
I think tapping the grilles up in the trunk does some good in forcing more air into the Service Plug port and it's pretty easy to do. Tapping up that gap around the trunk was a chore and I really didn't see any significant gains. I don't think I'll be tapping up the gap again.
I'm not going to worry anymore about how the air is getting out of the car in Fresh Air mode with the grilles tapped up. I'm pretty sure most of the air is being forced down the Service Plug port. I am just going to assume that air gets out the door seal, window seals and the like but most of the air will seek the path of least resistance down the open port.
The next order of business will be to take a long trip with multiple fast charges and see how well I can keep the battery cool with the trunk grilles tapped up and the Service Plug port opened up.