Need the diagram to put on the a/c belt

you need a cerpentine belt tool. check out all the pulleys and you will find that one has a square hole in the bracket holding the roller. that arm is spring loaded to maintain tension on the belt. Its not easy for the first time to do this job. The route the belt goes will be on a sticker diagram somewhere under the hood. sometimes they are on the under side of the hood, while sometimes they are on the car's grill frame. it is usually best to put the belt on all the pulleys except the alternator, then pull the tension pulley arm to facilitate the belt slipping onto the alternator pulley. Do not attempt to put it on the tension pulley last. and be careful the tension pulley tension can give you quite a severe pinch if you get your fingers caught under the belt.

start from bottom crankshaft pulley and ac compressor turn belt tensioner counterclockwise or lift forward then run pulley belt around crankshaft pulley and around AC compressor,run pulley belt around power steering pump then around alternator,once drive belt around alternator you done make sure drive is center of crankshaft pulley and AC compressor pulley.and belt back is center against water pump pulley before releasing the belt tensioner.

im not sure of the year,make or model of this car but if everything else is working like the powersteering and alternator and car doesnt overheat then i would say that the belt may only run the ac compressor. the first thing to check is all pulleys, the belt may have broke due to being worn and old, the belt may have also broke due to a bad pulley or a frozen one. check all pulleys in which the belt runs on. spin each pulley by hand and make sure it spins freely, if all spins free then install a new belt , make sure to check the ac compressor also. good day.

No diagram but it goes over the power steering pulley, going ccw, under the top idler (back of belt on pulley), over the ac compressor, over the alternator, up over the fan (backside of belt on pulley), around the crank pulley, over the water pump (back of belt on pulley) then you're back at the ps pump. It's tightened by loosening the pump pivots and using the long exposed jack screw below the pump to move it.

These instructions will help you . and also the picture below will help you more.
1
Locate the belt-routing diagram, printed on the fan shroud or possibly applied to the underside of the hood. This diagram shows you how to properly route the new belt, as well as identifying the location of the various pulleys, including the serpentine belt tensioner.
2
Move the belt tensioner off the Sable's belt using the serpentine belt tool. The tool connects to the side of the tensioner's arm and essentially acts as a handle for use in moving the tensioner. You can purchase a serpentine belt tool at most auto-part retailers.
3
Slip the belt away from the tensioner with your free hand and release the pressure on the tensioner with the tool. Pull the belt off the rest of the pulleys by hand and then remove it from the engine well.
4
Grab the old belt and new belt with one hand and put your foot through the other end of the belts. Stretch them both to their full length and check to ensure their both the same size. The old belt may have up to one-inch of extra length due to normal stretching that occurs during the belt's service life.
5
Wind the new belt, rib side to the pulley, around the crankshaft pulley. Consult the routing diagram and route the belt to the next pulley on the diagram. Continue to route and then check the diagram until you have the belt wound around every pulley except the belt tensioner pulley.
6
Double check to make sure the belt routes exactly as shown on the diagram and then move the tensioner aside once more so you can route the belt over the tensioner pulley as shown in the diagram. Move the tensioner back into place slowly and remove the tool.

Good luck

The serpentine belt routing diagram for 2000 Audi A6 2.8 liter V6 engine:


CS = Crankshaft
F = Fan pulley
Gen = Alternator
T = Tensioner pulley
AC = Air Conditioning compressor
PAS = Power Assisted Steering

Look for a tensioner pulley. It's spring loaded to maintain tension on the belt. It's a pulley that does not spin a device like alternator, power steering pump or AC compressor. If you put a wrench on it and push it one way or another you can overcome the spring tension and the belt will just pop off. Check the belt routing diagram under the hood when you reinstall a new belt. It should identify the tensioner pulley, sometimes known as an idler pulley.

no such diagram, u need to buy a "AC DELETE PULLEY" it goes where the pump would go. here is a link to a company that sells these pulley's, of course you must remove the ac compressor to install the pulley in its place
http://www.acbypasspulleys.com/cadillac.html

can be done manually, and go to autozone.com you might find some information for the belt