You can find this at you local public library...........
There is no such thing as Air Conditioning coolant.
A 2002 Mercury Cougar 2.5 liter plug wire diagram can be purchased from your local Mercury Cougar. It can also be found at most auto parts stores.
Air Conditioning
The engine diagram for a 1999 Mercury Cougar is used in diagnosing and repairing problems. It gives the location of each component and its connection type.
You can find this information from John Sherbit-MOTOR MANUAL/MOTORALLDATA Distributor
You can find a front door latch assembly diagram, for your 1996, Mercury Cougar from the manufacturer website. Many auto-parts websites will have the diagram.
places
You can get a vacuum diagram for a 1994 Mercury Cougar 4.6 liter in the Chilton's manual for that year and model. You can also find the diagram online at All Data DIY and at Engine Guy online.
You can view the 2001 Mercury Cougar Owner Guide ( which includes the fuse box diagram ) online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides
find a chilton manual, they are cheap
There should be a diagram under the hood,looking in,on the leftside near the firewall.
The Haynes Repair Manuals would have a diagram of the serpentine belt on a 94 Mercury Cougar XR7. You can find the manual at your local library, book store, or most auto parts stores.