As its name shows, drive belt drives some components in your engine, like water pump, power steering pump, alternator and air conditioner compressor. You may have one or two drive belt in your BMW car. Although it is made of a strong rubber, it still can be worn one day. Generally speaking, if you drive your BMW car more than three or five years, or 45,000 or 75,000 miles, then it is the chance for you to take care of your drive belt. A failing drive belt can cause an odd voice, like squeaking or chirping noises, further leading to a totally broken drive belt. It is so serious when you cannot drive your car with a worn drive belt since the steering will get very stiff and hard to operate. Check your drive belt and fix it before any trouble happens. All you need to do now is to pick one safe OEM drive belt with an affordable price.