BMW 13627566983 Mass Air Flow Sensor

In order to unscrew and unplug the mass air flow sensor perform the following steps, Starting at the left front of the engine compartment, the first thing to do is to take off the intake air filter housing. Finally, unscrew air duct clamp and pull out MAF sensor away and then remove it. In the case where the air flow sensor is to be re-used clean the screen area and check for any damage, parts missing or blockage of the screen since they influence airflow calibration. Also, make sure that there are no cracks in the intake ducts, as well as vacuum leaks. The steps that are followed to remove precisely, are the steps to be followed while installing.

The installation process is the reverse of removal, ensuring to inspect the O-ring and replace it if necessary.

A malfunctioning air flow sensor can trigger the MIL and may lead to issues such as difficulty restarting the engine when hot, the engine starting and then stalling, or the engine starting and running only when the accelerator pedal is depressed.

The N52 engines utilize a digital mass air flow sensor.