51 71 378 Removing and installing/replacing underride protection

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.

Necessary Preliminary Tasks:

Remove front bumper trim. Refer to 51 11 156 REMOVING AND INSTALLING FRONT BUMPER TRIM (FROM 10/03) or 51 11 156 REMOVING AND INSTALLING FRONT BUMPER TRIM (UP TO 10/03) .
Remove front underbody protection. Refer to 51 47 490 REMOVING AND INSTALLING/REPLACING FRONT ASSEMBLY UNDERSIDE PROTECTION .

NOTE: The operation is described on the left side; proceed in the same way for the right side.

Version Up To 10/03:

Lever out catches (1) and detach brake air duct (2).

Fig 1: Levering Out Catches And Detaching Brake Air Duct

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Installation:

Fixtures (1) on brake air duct (2) must not be damaged.

Fig 2: Identifying Fixtures On Brake Air Duct

Courtesy of BMW OF NORTH AMERICA, INC.

Build Date From 10/03:

Release expansion rivet (1).

Lever out catches (2) and detach brake air duct (3).

Fig 3: Levering Out Catches And Detaching Brake Air Duct

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Fixtures (4) on brake air duct (5) must not be damaged.

Left only:

Lever temperature sensor (1) out of fixture (2).

Pull temperature sensor (1) with cable grommet (3) out of brake air duct (5).

Fig 4: Identifying Temperature Sensor

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All Build Versions:

Installation:

Catches (1) on brake air duct (2) must not be damaged.

Fig 5: Installing Brake Air Duct

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Release nuts (1) and remove underride protection (2) in direction of arrow.

Fig 6: Removing Underride Protection

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Nuts (1) on underride protection (2) must not be damaged.

Fig 7: Installing Underride Protection

Courtesy of BMW OF NORTH AMERICA, INC.