my 92 es300 has a moon roof and when it goes through car wash when i first got it found out it leaked and i noticed that when i shut the doors on my car the moon roof pops up for an instant so im guessing it's loose so how do i tighten it

 

The likely cause of your leak is blocked sunroof drains. Open the sunroof and see where they are, you can than try to open them with air preasure, or a coat hanger. air pressure is best. A garage can do that for you at minimal cost? There should be one at each corner.

Also, it's normal for the sunroof to pop up for a second while closing the doors. The pressure increase inside the car will do that.

Phil

 

Hmm, mine does not pop up, check that all shims are still in place.