18 40 050 Removing and Installing/Replacing Front Exhaust Manifold (N52K)

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove rear exhaust manifold.18 40 060 Removing and Installing/Replacing Rear Exhaust Manifold (N52K)

NOTE: The oxygen sensors are in danger of being damaged when the exhaust manifolds are removed and installed.

Remove control sensor, see 78 EMISSION CONTROL, OXYGEN from cylinders 1 to 3

Remove monitor sensor from cylinders 1 to 3

Unscrew nuts.

Remove exhaust manifold (1).

Fig 1: Locating Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Clean sealing faces and replace seals.

Replace nuts.

Tightening torque, 18 40 1AZ, see 18 40 EXHAUST SYSTEM SUSPENSION .

Fig 2: Locating Seal Beads

Courtesy of BMW OF NORTH AMERICA, INC.