13 54 250 Replacing intake hose (between air-mass flow sensor and connecting piece) (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.

Switch off ignition.

Unlock plug (1) and detach from air-mass flow sensor.

Detach vacuum line (2) from intake hose.

Release hose clamp (3).

E39:

withdraw intake hose from resonator.

Remove intake hose together with air-mass flow sensor.

Fig 1: Detaching Vacuum Line From 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 2: Locating Sealing Ring

Courtesy of BMW OF NORTH AMERICA, INC.

If intake hose is replaced:

Insert air-mass flow sensor in new intake hose.