Phone holder for Citroen C3 Picasso

The Citroen C3 Picasso - 2015 - MPV has no good spots for securely mounting a phone for music and map use. This clamp can be secured between the two central air vents, hooking into a small lip under the vents and with the spreader bar being screwed down on top of the vents. 

This has been tested with iPhone Xr and iPhone 15 in cases but I will include a diagram of the rear spring-loaded arm so that it can be modeled to whatever size you need if you need a smaller or larger solution. 

This was printed on a Bambu P1S in generic black PLA but that may be insufficient if you live in a hot area. It needs:

2x M4x25 CSK screws

8x M3x12 CSK screws

6x M3 heat-set inserts

2x M3 nuts

1x 25x5mm extension spring

The whole thing can be printed without supports. The Rib should be printed laying on its side, the bolt, wingnut and two copies of the bracing pair should be printed vertically coming out of the build plate. The back support, back T, overhook, washer and spread bar should all be printed laying flat on the bed.

Be sure and put a screw and nut through the overhook before mounting it to the back plate with the back T. The Heatset inserts go into the back T and the two bracing pair. The spring is stretched between the screw at the bottom of the backplate and the screw on the bottom of the overhook. 

I have found that a little soft rubber stuck in the bottom of the backplate and the top of the overhook can help the clamp hold on to the phone a little better.

EDIT: April 2026 - I have found the Spreader deforming under strain in a hot car when printing in PLA, as well as the Rib delaminating. I'd recommend printing in PETG and with a higher infill if that's an issue for you.