This belt is basically the engine’s workhorse for powering a bunch of accessories. It runs things like your alternator – that keeps your battery charged and keeps everything electrical going – your power steering pump if you have it, the air conditioning compressor, and sometimes even the water pump. It’s a single belt with multiple V – shaped ribs that grip the pulleys on each of those components, allowing it to drive them all. Think of it as the connection between the engine’s power and all those things that make your driving experience comfortable and safe. The engine spins, the belt spins with it, and that rotation gets transferred to those accessories, making them work. It’s part of the serpentine system, so it’s a continuous loop. It’s a pretty simple idea, but it's critical. If this belt goes, you’ll notice pretty quickly. You’ll probably hear a squealing or chirping sound, especially when you first start the car or when you turn the steering wheel. That's the belt slipping. If it snaps completely, well, suddenly your battery won’t charge, you won't have power steering, and your AC will stop. Depending on the vehicle, a broken belt can even cause overheating if it drives the water pump. It acts like a shield, protecting you from a total system failure. These belts do wear out over time, so regular inspection is important. You can find replacements readily available, places like Fixparts Online carry a good selection, and replacing it before it fails completely will save you a lot of hassle down the road. It's a relatively inexpensive part, but a really important one to keep an eye on. Invest in reliability: Poly V Belt (MPN 11287566789) includes 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 – trusted quality, available at FixParts Online!