13 62 560 Removing and installing/replacing airmass flow sensor (M54)

WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, and 2001 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Interrogate fault memory of DME control unit.

Switch off ignition.

Unlock plug (1) and detach.

Open retainers (2).

Release hose clamp (3) and detach intake hose (5) from airmass flow sensor (4).

Pull air-mass flow sensor (4) out of intake filter housing.

Fig 1: Removing Air-Mass Flow Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check sealing ring (1) between air-mass flow sensor and intake hose for damage, replace if necessary.

Coat sealing ring (1) with acid-free grease.

Fig 2: Locating Sealing Ring Between Sensor And Intake Hose

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check sealing ring (1) between air-mass flow sensor and intake filter housing for damage, replace if necessary.

Coat sealing ring (1) with acid-free grease.

Fig 3: Identifying Sealing Ring Between Sensor And Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Arrow on air-mass flow sensor indicates direction of air flow.

Install air-mass flow sensor between intake filter housing and intake hose so that arrow points in direction of intake hose.

Fig 4: Aligning Arrow On Air-Mass Flow Sensor

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.