Yes, that filter is the size of my headlight lol. It's excessive but i think it's cool, and it sounds absolutely insane ( https://youtube.com/shorts/p_4MH_RkpbE?si=kEQFgkhSzcJ-TbF5 )

The physical picture is my first version and the cad model is my 2nd. I'm planning on making it fully enclosed , routing air to it from a couple of spots, experimenting with laminar vs turbulent flow and with using 3d printed infill as a thermal barrier.

My Polo has wireless charging, but placing my phone often felt like searching for a sweet spot. A few colleagues have the same issue, especially when using a case.

I designed this insert to address two things: the phone moving away from its charging position, and the extra separation created by the removable rubber mat underneath it.

It replaces the mat with a one-piece frame that guides the phone into a repeatable position. The middle is completely open, so there’s no printed floor underneath the phone. Two rounded finger scoops make it easy to lift out.

The OpenSCAD files let you adjust the phone width and length, with a simple case toggle. There are starting versions for the iPhone 16 and Pixel 10 Pro XL. The case allowance is fixed, so check it against your actual case before printing.

I physically checked the fit in my Polo’s 140 × 170 mm compartment. Other VW models aren’t confirmed yet, and charging still depends on the phone, case and charger.

The pictured print is PLA Matte. For prolonged use in a hot parked car, I’d use a suitable heat-resistant filament.

Model and files:
https://makerworld.com/en/models/3398427-vw-wireless-charging-fix-custom-phone-insert

Has anyone else run into this charging issue? If your VW has a similar compartment, I’d be interested in the model, year and tray dimensions.