11 12 729 Checking cylinder head for water leaks (B48B)

WARNING: This page is about a different car, the 2018 BMW 330i xDrive and 2017 BMW 330i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

2 361 215
2 410 136

Necessary preliminary tasks:

Remove CYLINDER HEAD .
Remove all HYDRAULIC VALVE CLEARANCE COMPENSATING ELEMENTS
Remove ECCENTRIC SHAFT
Remove EXHAUST TURBOCHARGER

Unscrew nuts (1).

Tightening torque 11 62 1AZ .

Remove clamping strip (2).

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Position cylinder head (1) on special tool 2 361 215 and secure to 35 Nm.

NOTE: Assemble the special tool 2 361 215 in such a way that all water ducts on the cylinder head are sealed.

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Disassemble connecting branch (1).

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Attach special tool 2 410 136 to cylinder head and secure.

NOTE: Compressed air at special tool 2 410 136 maximum 3 bar .
Heat cylinder head to 60 °.
Visual inspection in a water bath.

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Required follow-up work:

Install all HYDRAULIC VALVE CLEARANCE COMPENSATING ELEMENTS
Install ECCENTRIC SHAFT
Installing the CYLINDER HEAD
Mount EXHAUST TURBOCHARGER .