Hpw do I install an ac/heat blower unit

Try www.car-part.com

If you are talking about the belt for the ac compressor, yes the heater should still work.
If the blower is not working, you will need to have the blower motor checked for voltage and ground.

none of the answers given are even about this problem. I too need an answer to this. I have a ton of sediment in my tank and I need to clean it out. how do I do that?

I would replace the oil pressure sending unit first and see if that corrects this.

ignition module,check,if good could be timing belt.










TIM..........

From inside the trunk area, at the top of the wheel well, there is a back cover to remove, under the cover you'll find a 17mm nut, remove the nut and cupped washer, there should be 1 more 17mm nut to remove. Then from under the car, remove the thru bolt and nut. The strut should come out. take the old strut out and put the new one in.

Check the fuel pump, it may not be functioning.

If the fuel pump has power it may be a bad ground clean the plugs contact with electric contact cleaner it comes in a spray can. spray the inside of the plug and plug it on several times to rub off any corrosion on the plug and its contacts. By the way if the pump has power to it the relay is working when you turn the key one you can hear the fuel pump relay click.

Here you go: http://www.vw-resource.com/bleed2.html
It's a generic (VW) guide, but it applies to almost all modern cars, including your cabriolet.

Need a fuel distribution box for a 1988 vw cabriolet "Karman" Gas motor.