Air-Vent Phone-Mount Adapter

Two alternative bases for attaching an aftermarket ball-joint phone holder between the circular dashboard vents. The creator explicitly designed the geometry for the 213/238-series E-Class vent arrangement and shows the adhesive version installed. The second version is intended to engage the vent slots without adhesive, but the creator states that this version was not tested and warns against PLA because it may break during installation. Use a cabin-heat-resistant material, verify adhesive or clip retention before driving, and keep the device clear of controls, airbags and the driver's view.