Ebay, Dealer, Salvage Yard, & many online sites. Here is one. http://www.samarins.com/maintenance/manual.html or pretty much any auto part store for example Autozone www.autozone.com
A repair manual for the 1998 Buick Park Avenue would have a brakes repair diagram. A popular book is the Haynes Repair Manual.
What the heck are you trying to do ???
under the back seat passenger side
under the back seat. not 2 hard
under the front end fender
The 1998 Buick Riviera air conditioner compressor is located in the engine compartment. The air conditioner compressor will be on the left-hand side of the engine.
first you need to state what liter the engine is.
check fuse or see if its plugged in under the seat
You can get the repair manual for Mercedes Benz a160 Avantgarde 1998 at the local mechanic shops.
You sill havn't answered my question. where can you find a 1998 serria repair book manual?
Try "Google"
Automatic belt tensioners do not require adjustment as they are spring loaded. They get replaced.