Can someone help me?!!!!

[ALE53]

I replaced my rear self level airbags in early June. Mine were crippled on one side and thrashed to the cords on the other. Install of new bags was done blind by me and was uneventful for the most part. Car has been fine since. As i'm pulling onto my street this evening BOTH go flat. No pop, no noise, no warnings, no lights.....basically the X5 suddenly feels like a stagecoach. I pull in my garage and sure enough the ass of the vehicle is flat. It's like 101 out so I go inside and tell my wife then change clothes and go back out. I had to start the vehicle to get the compressor to come on, and I hear air (leaking?) from the pass side rear wheel and nothing from the driver side, no lifting occurring as compressor is running. I shut it down and started this post.

WTF happened? All I can do is yank the wheels and investigate but both? Simultaneously? Oh my god it's hot.....