Whereas a carburetor regulates the flow of fuel and air into a car's engine, a fuel injection system separates these responsibilities. The fuel injection throttle body only regulates the flow of air and the fuel injectors and fuel regulator control the flow of fuel into the engine. It is unusual for this to be replaced, however there are several sensors attached (including the Throttle Position Sensor and the Idle Air Control Assembly) that may need to be replaced. The Throttle Position Sensor measures how far you are pressing on the accelerator to then tell the computer to add more or less fuel. The Air Control Assembly helps the car to idle.

The original parts used by BMW to build your car are available as replacement parts under the "Genuine BMW" brand. Manufactured under the direction of BMW, expect excellent quality and a premium price since these parts are exclusively available through the BMW Dealership network. You may not realize this, but the parts that make up your BMW are not necessarily manufactured by BMW. No cause for concern, as BMW designs the part, hires a manufacturer and ensures its quality to you, including a lifetime warranty. In fact, many of these manufacturers have been making parts for BMW for decades and are experts in their own right. In our industry these manufacturers are called OEM (Original Equipment Manufacturers) or OES (Original Equipment Suppliers), and are often brands you recognize including Hella, Bosch, Bilstein and Lemforder. Don't be surprised to open that Genuine BMW parts box and find a Bosch branded part inside. If you are looking to buy Genuine BMW Parts online then you've come to the right place. FCP Euro offers both types of product - Genuine BMW and OEM/OES - from brands we trust to use on our own cars. If you have any questions on what options are available to you, just give us a call, we are happy to help.

FCP Euro is an online retailer of Genuine & OEM replacement BMW parts. Our online catalog offers an extensive range of BMW parts for all makes and models, as well as replacement parts for all European vehicles.

Since 1986 we have been committed to providing our customers only the highest quality Genuine & OEM replacement parts backed with a price match guarantee, free shipping, lifetime warranty and fitment guarantees on every part we sell. With our hassle free 365 day return policy and free tech support you can trust FCP for all of your replacement part needs.