VW Sharan Seat Alhambra heater valve shaft for 7N0819810E.

This is common problem, when rear air vents are blowing cold air to rear passengers. This is step by step tutorial how to repair VW Sharan 7N/Seat Alhambra rear heater valve N317 (7N0819810E) with new spare 3D printed gear shaft. In this video you can see how to open rear heater valve body, remove broken gear shaft, install new 3D printed gearshaft and reasemble valve body. Also bear in mind to use strongest plastic filament for 3D printing, in order to avoid braking again.

https://youtu.be/vEdjOItK2wo?feature=shared