The air Conditioner has a hose that goes to the exterior of the vehicle to remove the condensation from the system which may have dislodge and allowing the condensation to enter the interior of the vehicle, try looking under the vehicle and you may find a hose sticking out try another vehicle with air conditioner on and you will see the water coming from the system and it will tell you where to look. I you.
The air conditioner needs regassing
What?
The fuse box for a 1988 Mercedes 560 SL is located on the passenger side right about the right ankle of the passenger when seated.
in the trunk , or in the right passenger seat
http://www.tmcpubl.com/mercedes.html
The battery of a Mercedes Benz CL600 as of 2002 is located in the rear trunk on the passenger side.
On an 2011 mercedes Ml 350 the battery is located under front passenger seat
You should have an authorized Mercedes dealership near your area. Depending on your price budget you can purchase a brand new Mercedes automobile, or you can purchase a previously owned Mercedes for slightly less.
Passenger side, at the engine/transmission seam
Behind the passenger side kick panel.
Under the passenger side dash
Should be in the back under the passenger seat