11 12 729 Checking cylinder head for watertightness (B48, B46)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2019 MINI Cooper, 2018 MINI Cooper, 2017 MINI Cooper, 2016 MINI Cooper, and 2015 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

2 361 215

Preliminary work needed:

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

Unscrew nuts (1).

Tightening torque 11 62 1AZ .

Remove trim strip (2).

Fig 1: Nuts And Trim Strip

G00554458

Courtesy of BMW OF NORTH AMERICA, INC.

Position and fasten cylinder head (1) on special tool 2 361 215 .

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

Fig 2: Cylinder Head And Special Tool

G00554459

Courtesy of BMW OF NORTH AMERICA, INC.

Disassemble connecting bracket (1).

Fig 3: Connecting Bracket

G00554460

Courtesy of BMW OF NORTH AMERICA, INC.

Attach special tool 2 361 215 to cylinder head and secure.

NOTE:

Compressed air at special tool maximum 3 bar.

Heat cylinder head to 60 °.

Visual inspection in a water bath.

Fig 4: Attaching Special Tool

G00554461

Courtesy of BMW OF NORTH AMERICA, INC.