*In case of idling during idling or a car that is thin under load / often running under idling or lean / rough idling or stalling, the MAF sensor needs to be replaced. MAF, also call top-quality air flow sensor, is a sensor used to determine the mass flow of air entering a fuel-injected internal combustion engine. Before installing the MAF, sure clean the air box and replace the air filter, otherwise "Code and Check Engine Light" may always be displayed even if the MAF is replaced with a new one. *REPLACE PART # - Replace For 5WK96132Z, 5WK96132. *FIT THE FOLLOWING VEHICLE - Mass Air Flow Sensor fit for 330 530 X5 E39 E46 E53 01-06.
