Whenever i get the interior of my 87 300E wet, either by coming in from the rain or from sweating a lot in the summer heat, the car develops a rather bad odor (that eventually goes away after a day or two). Any ideas on what could cause this? I've cleaned the leather surfaces a couple of times with lexol, I think that helps but I won't know for sure until the rainy season arrives in a couple months.

thanks,
anthony