How often should a cambelt be chenged on BMW 320ci?

According to BMW, the cambelt on a 320ci should be replaced every 60,000 miles or 10 years, whichever comes first. However, some experts recommend changing the cambelt more frequently, especially if you drive in extreme weather conditions or if you put a lot of stress on your engine. If you are not sure how often to change the cambelt on your BMW 320ci, you should consult with your BMW dealer or a qualified mechanic.