13 62 560 Removing and installing/replacing airmass flow sensor (N51)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Read out fault memory of DME control unit
Switch off ignition

Unlock plug (1) and remove.

Release screws.

Pull air-mass flow sensor (2) out of upper section of intake filter housing.

Installation:

Check sealing ring for damage, replace if necessary.

Fig 1: Identifying Plug And Air-Mass Flow Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Check stored fault messages.
Now clear the fault memory.