Daughter's 2006 VW Jetta had a broken A/C vent louver control slider, the ‘fork’ had separated from the main body.  

Just slip this part over the horizontal louver and capture the vertical louver control rod with the fork. No need to remove the vent from the panel. 

Likely works on other model years of VW/Audi cars.

Printing

• Filament:  PETG
• Layer Height: 0.10
• Nozzle: 0.4mm
• Printer: MK3S
• Perimeters: 3
• Support: Yes, on fork
• Brim: Yes
• Infill: 100%