SL600 Leaking water and no power steering???

[leejxxxxx]

Tonight was not a good evening. I was sitting at the airport and hit the REST button to see how it worked while I was waiting.
Anyway, my wife's plane comes, I start the car and hear a small pop and when I backed up I noticed that the P/S wasn't working so I went to a light and thats when I noticed the water leaking. I decided to try and put water in by going to the AM/PM but the temp gauge was getting near the red zone no matter how much water I put in.

Two questions?
1) What happened to the power steering? The serpantine belt is still turning.

2) Was hitting the residual (REST) heat button a coincidence?

I'll post the dealer's answer tomorrow, any ideas?

At least my ADS light hasn't come on in a while!