Keeping your E30 in good running order doesn’t have to be costly. If you’re a BMW enthusiast, chances are you’re also a DIY enthusiast. Let’s be honest, not many people can afford to run to their indie mechanic every time they need a repair on a car that’s over twenty years old. For example, something as simple as a clutch slave cylinder replacement can cost nearly $400 with parts, labor and tax at a local garage. This is something the weekend mechanic can repair in a few hours with around $60 in parts.