my ac unit wount cool down does anyone know how to recharge the ac unit? please help i'm a poor college student

all the time

I have done a coil test and get no reading between the secondary poles ( meant to be .75 to .81 ohms)nor the coil outlet and the secondary pole (meant to be between 10,000 and 11,000 ohms). I find it strange to get no ohm reading at all. It did get a yellow spark once at the shops but I still couldn't start it.
Do they fail in stages like this, there have been times lately when it's done this but letting it sit for half an hour cures it and away we go again. Strange!

I am at the no return stage where I have cut the old boot off (it was had it anyway) and unbolted the rack both ends and the oil lines. Do I undo it from the colum, the are two cap srews by the look behind the vacuum brake servo under and over the alloy housing for the colum. These look like they would release the whole rack which would come out like an odd tee shape, one with a very short leg. Then I could see that the boot would slip over the rack easily.

First my temperature gage started rising, next my oil temperature started rising, once the oil reached its max, my car died and all this smoke started coming out of everywhere in the engine. Now I only have a couple weeks with the car and I know it was just sitting there for quite some time. And since I bought the car my heat doesnt work very good at all.

i have a 1994 audi 100s and i had replaced the starter and it cranked over and ran and then killed. i have fuel, spark at the starter but no spark at the plugs.

what would cause my radiator fans not to be working

how should the fan switch be wired? Previous owner bypassed the original install with several pieces of wire under the hood and the switch laying on the floor.

how to replace thermostat on audi 1994 100s

There is no "juice" going to sparks plugs. I changed the coil and still nothing. What could be the cause of this?

Where is the location of the plug for the code scanner? Where is the crankshaft sensor located?