Updated 12/03. Photos and Instructions added (see pdf and ignore some of the AI induced psychosis). At a simple level it goes like this:

- Weld the two vent pieces. together
- Weld the 3 parts to the vertical window panel together
- Butt the long panel down over the curved fins and glue it
- Run a weld down the back where the two surfaces meet
- Glue the two small seam panels on the long panel
- Glue the name panel over the main vent weld

Updated 06/03. Mesh improved, curve artifact removed, louvre positioning improved, printing it again now and PDF to follow of assembly

VW Transporter Side Window Vent (Driver & Passenger)

Designed specifically for VW Transporter side windows, this 3D printed vent provides secure airflow while maintaining a clean, factory-style look.

The model is split into clearly named plates to make assembly straightforward. Each part is labelled logically in the files, so it should be obvious how everything fits together during printing and installation.

An install PDF and better photos to follow. 

I printed it in PET-G.

The name plate is editable  

Features

• Recessed Fit – The vent sits recessed into the window frame rather than sitting proud, giving a more OEM appearance and helping keep the setup discreet.
• Integrated Mesh Insert – Includes a mesh section to allow airflow while helping prevent insects and debris from entering.
• Rain Louvres – Angled louvres are built in to help reduce water ingress while maintaining ventilation.
• Modular Multi-Part Design – Designed to fit standard print beds and assemble cleanly.
• Driver & Passenger Versions – Separate models included for correct side fitment.

This design is still being refined and improved, so feedback is very welcome. Expect small updates as fitment and airflow are further optimised.

Ideal for camper builds, stealth camping setups, and improving airflow when parked.

Note: this is sized at 410mm, your windows may be a different size but it should scale.