If you’re in the market for a new set of shocks and struts for your E39, you’re in the right place. In this post I’ll go over the types of shocks available and how to choose the correct type that will suit your needs. The first thing you need to consider is what model E39 you drive. The 525i, 528i, 530i and 540i were available in either the base model or sport package. Those with the sport package require sport shocks and those without the sport package require base shocks. BMW and parts dealers refer to the sport model parts as M sport suspension.