13 62 560 Removing and installing/replacing air-mass flow sensor (M54)

WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.

Turn off ignition.

Unlock retainers (1) on intake filter housing.

Unlock plug (2) and detach from air-mass flow sensor.

Release hose clip (3).

Detach intake hose (4) from air-mass flow sensor.

Remove air-mass flow sensor.

Fig 1: Removing Air-Mass Flow Sensor (M 54)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check seal (1) between air-mass flow sensor and intake filter housing for damage; replace if damaged.

To facilitate joint between air cleaner and throttle assembly, coat gasket with acid-free grease.

Fig 2: Locating Seal Between Air-Mass Flow Sensor & Intake Filter Housing (M 54)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Only reinstall mass airflow sensor with undamaged lattice frame.

Fig 3: Identifying Mass Airflow Sensor Lattice Frame (M 54)

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Interrogate fault memory of DME control module.
Check stored fault messages.
Rectify faults.
Then clear fault memory.