A side window, pretty simply, lets you see out and lets light in. It also provides a seal against the weather – keeps rain, snow, and wind from getting in and keeps the noise from outside out. Some windows roll down for ventilation, obviously, and others are fixed in place. Modern ones often have defrosters built in to clear ice and fog. They also contribute to the structural integrity of the body, although not as much as, say, the pillars. It's a key piece of the body. It fills an opening in the car’s frame, providing visibility for the driver and passengers. It’s a crucial part of the safety system too. If it breaks correctly—modern windows are designed to crumble into small pieces rather than shatter—it helps protect occupants. Plus, it's part of what keeps the interior climate controlled. It’s definitely not just a piece of glass! You’ll notice if a side window is damaged pretty quickly. A cracked or broken window compromises the weather sealing, letting moisture in which can lead to rust or mildew. It reduces visibility, naturally, which is a safety hazard. And a missing window, well, that’s a security issue right away. It also affects how well your heating and air conditioning work because you lose that insulated barrier. If yours is damaged, getting it replaced is a priority. You can find a good selection of replacements at places like Fixparts Online, and it’s a job best left to a professional to ensure a proper seal and avoid any leaks. Built to endure: Side Window (MPN 51334390289) comes with a 12-month warranty!

Why Choose BMW?

• Get parts made specifically for your BMW, so they fit and work perfectly. • BMW parts are known for their high quality and durability, meaning they last longer. • Using genuine BMW parts helps maintain your vehicle’s value. • You can trust BMW parts to keep your car running smoothly and safely. BMW delivers excellence, FixParts Online delivers to your door.