How a Car Moonroof Works
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
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I wish you could get nicer cars without sunroofs. Probably the most pointless feature there is.
Not explaining like in other of your videos
OMG... another circuit board and a DC motor with brushes. I prefer a manual handle to open the sunroof. You get immediate feedback about the state of the mechanism. Turns too heavy: get out a rag and some grease.
It leaked in my e90 BMW because the channel was blocked with dirt when I was abroad. My car was full of water there's two inches of water a month later
Moonroofs are pretty cool but did you know every vintage rust belt car has a built in moonpool? Just look under the carpet!
I didn't know my car has a moonroof and not a sunroof! God help anyone that would be tasked with mending a malfunction. My Mazda 3 moonroof seems to have been engineered to quickly extract fart smells without causing undue turbulence, my wife's favourite car feature.
Not explaining like in other of your videos
I wouldn't have one. They leak.
Personally, I think sunroofs/moon roofs should have less components. Older roof hatchets did not have all those motors. They leak or people forget to close them, I think they should be more or an emergency exit when needed, all that glass. Or even inflatable air buoys with strobes in case the car goes in water or tumbles. Just a thought not sure how the buoys would deploy although I think it could save some time in a emergency. I never open my moon roof on my Scion TC too much turbulence. That glass up there is less reinforcement. Feel free to debit ideas are welcomed...thanks Kar for showing this.
I love my sunroof. It's good to be able to open it to get some air in, but the most important thing to me is that it equalizes the ambient light level inside and outside the car. Saves me a lot of eye strain on long drives.
indoor or outdoor both good thanks man😊
As a Subie fanboy, the BP generation of wagons had a nice style, the moonroof deflector and giant panoramic moonroof was one of the reasons I love it so much, looks so cool from inside.
I like my sunroof because I can watch the birds while I'm driving
I find sunroofs too hot in the summer but driving on a sunny winter day with the tunes and heat cranked up and the top open = 😚👌
Great video! I learned alot,and also reinforces why none of cars have sun/ moon roofs. They are complex and expensive when they break.
Indoor video quality is great!
Hey, I resemble that remark...👴. Ha, what a great & unexpected video & as always, well explained. Amazing engineering and sequencing all moving parts for function & safety. Thank you & much appreciated!
Awesome.
The quality was good, like your videos. How'd you know I am bald?
Indoor quality is just as good as outdoor so I'm happy either way.