Fitment: Yezoauto Maf Compatible with 2002 BMW 325 325i E46 2.5L from Aug 2002; 2003 325Ci Models with M54 Engine ID From Production Date 03/03; 2004-2005 325I Models with M54 Engine ID; 2003-2006 325 325Ci; 2004-2006 X3 2.5L/3.0L Engine; 2003-2005 BMW Z4 Z4 2.5L/3.0L Model.
Function: A mass air flow sensor calculates the oxygen flowing to your engine for the ideal air-to-fuel ratio and helps to increase engine efficiency by doing so. The engine throttle opens when you press on the gas, allowing more air to flow around the hot wire. An electronic chip and PCM work with the airflow signal to calculate how much fuel needs to be injected. This measurement helps keep the air to fuel ratio at the optimal level and gas mileage at as bay.
Features: Precision manufactured and assembled sensing elements are used to accurately measure air flow and restore a vehicle's original drivability; Qualified equipment and state-of-the-art testing, coupled with 100% rigorous quality inspection, ensures an impeccable customer experience; Fast response time and durability; Lightweight and portable, easy to install and clean, and directly replaceable.
Note: We provide you with one year after-sales service, if you encounter any problems in the process of product use, before you give us your own feedback and comments on our products, please leave us a message in a timely manner, we will be within 18 hours to give you a satisfactory solution. Before you buy this mass air flow sensor. Please use the year/make/model drop down bar confirm the compatibility or description to confirm the compatibility.