The most reliable sources for factory service manuals are manufacturer websites and customer service departments, while secondary sources such as ManualsLib.com, ManualsOnline.com and JustGiveMeTheDamnManual.com offer extensive product manual libraries.
For auto manuals, Edmunds.com keeps a record of available manufacturer manuals for 45 major auto companies. Users can often download manuals for anything manufactured within the last 20 years. Another service, JustGiveMeTheDamnManual.com, offers a simple website for downloadable service manuals for 25 major car manufacturers. In the case of automobiles, you should choose manufacturer or factory service manuals over third-party manuals, because cars are complicated and dangerous machines.
For consumer goods, ManualsLib.com offers more than 1.4 million product manuals and ManualsOnline.com offers 700,000 product manuals. Manuals are available for subjects including baby care, car audio, cell phones, computer equipment and fitness equipment. Other topics include home audio, power tools, video games, lawn and garden, and marine equipment. Both databases offer simple intuitive search functions and free PDF manuals. Users can sort searches by category, manufacturer and year.
For manuals that are harder to find, many independent sellers offer manuals for prices ranging from $50 to $200. For automobiles, Chilton.com is the most popular company providing this service. Before purchasing a manual, contact the manufacturer.