11 61 050 Removing and installing intake air manifold (S62)

Remove intake filter housing upper section with air-mass flow sensor.

The following work steps are shown on the E39. The same procedure applies to the E52 (Z8).

NOTE: A bracket for cable duct is screwed down with nut (1).

Fig 1: Releasing Nuts

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Installation:

NOTE: The funnels (1) for cylinders 2/3/4/6/7/8 are identical parts.
The funnels (2 and 3) for cylinders 1 and 5 are different.

Release nuts and remove funnels (1 to 3).

Fig 2: Removing Funnels

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Installation:

Replace nuts.

Slacken screws (2) and then screws (1) from outside to inside approx. one turn.

Remove screws (2) and then screws (1).

Fig 3: Removing Screws

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Installation:

Install all bolts.

Tighten screws (1) and then screws (2) from inside to outside to preliminary torque of approx. 5 Nm.

Tighten down screws (1 and 2) from inside to outside to 10 Nm.

Installation:

Replace sealing rings (1) and gasket (2).

Fig 4: Installing Sealing Rings And Gasket

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Unclip plug connection (1) from holder.

Fig 5: Unclipping Plug Connection From Holder

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Release screws (2) on oil separator.

NOTE: Hoses on oil separator remain connected.

Carefully pull oil separator forward out of intake air manifold.

Release hose clamps (1) and remove hoses.

Fig 6: Releasing Hose Clamps

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Remove intake air manifold.