How a Car Moonroof Works
speedkar99 speedkar99
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 Published On Apr 15, 2024

Here's a look inside a car's sunroof mechanism and how it works!

The sunroof provides upward visibility and light to enter the vehicle's cabin. It has many modes- tilt, open and panoramic modes.
In this video we take apart the sunroof assembly from a Subaru Outback to see how its mechanism works.

There are three major components - the track frame, the motor, and the tilting mechanisms. The front tilt uses 4 bar linkages with slider joints to first position the front glass up and angled to the body.
The rear glass panel must then be tilted downward, underneath the vehicle's body to retract unto the roof skin. This also uses a 4 bar linkage that collapses when the glass is retracted back.

The sunroof motor is a brushed DC electric motor that powers a worm gear. The worm gear powers a compliance gear which moves the sunroof cables. The cables run the length and will push and pull on the tilting assemblies to move the glass back or forth.

Here's another look at how another style of sunroof works:

   • How a Sunroof Works  

This is the Camera I use:
https://amzn.to/3oaRcZX (US)
https://amzn.to/3KWQ2uU (Canada)

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