1989 740 Turbo *I'm having an issue with wet rugs in the front, not sure what it is but it isn't water kind of slippery not sure if someone has had this problem before also the fan doesn't shut off when I have it on 0 and it only blows out of the top vent even if I switch it to any other vent in the car. And as for my antifreeze/coolant the level goes down after a couple of uses, I don't see any leaks what so ever but I do notice that the cap for the reservoir vents but not smoothly it's more like a bubbling or gurgle not sure if that's normal. Would really appreciate any kind of help!

 

It sounds like you are leaking antifreeze out of your heater core or one of the hoses running to the heater core. Most likely the heater core will need to be replaced. Here is a link to the procedure for heater core removal/replacement:

https://www.brickboard.com/FAQ/700-9...eplacement.htm

 

+1. Pretty text book case of failed heater core.