If you pop the hood on your '75 2002 and poke around, you may find you're able to find most of the components you expect to see without a BMW repair manual. But without a BMW repair manual, how are you going to know for sure what you're doing? Likewise, you may need a BMW repair manual just to pop the hood on your 2002 540i. Either way, before you start working on your BMW, it's a shrewd move to get a BMW auto repair manual to guide you on your way. Even experienced BMW technicians frequently refer to BMW repair manuals during the course of their work. Why? Because they know that the BMW repair manual can teach them how to do familiar jobs faster. If they get stuck, the BMW repair manual can get them out of potentially expensive trouble. And when they need to know a precise setting, the BMW repair manual has the figures they need to know to do the job right the first time. Trial and error is not an efficient way of fixing cars. That's why a BMW repair manual should be right on top of your toolbox. And with our BMW repair manual prices and selection, you can't afford not to have a BMW repair manual in your library.