Checking cylinder head for watertightness

Preliminary work 

• Refer to INSTALLING THE CYLINDER HEAD ON THE SPECIAL TOOL .
• Refer to REMOVING THE EXHAUST TURBOCHARGER (CYLINDER HEAD REMOVED) .
• Refer to REMOVING EXHAUST TURBOCHARGER TRIM STRIP .
• Refer to INSTALLING THE CYLINDER HEAD ON THE SPECIAL TOOL (EXHAUST TURBOCHARGER REMOVED) .
• Refer to DISASSEMBLING CYLINDER HEAD .

• Position the cylinder head (1) on the special tool 2 361 215 and tighten with the enclosed (short)  screws.
• Remove the venting connector.
• Install the special tool 2 410 136  (valve).

Courtesy of BMW OF NORTH AMERICA, INC.

• Make sure that the pressure does not exceed 3 bar.
• Heat up the cylinder head to 60°C in a water bath.
• Visually inspect for a loss of pressure in the water bath.
• Remove all special tools.
• Install the venting connector.

Follow-up work 

• Refer to ASSEMBLING THE CYLINDER HEAD .
• Refer to DISASSEMBLING CYLINDER HEAD FROM THE SPECIAL TOOL (EXHAUST TURBOCHARGER REMOVED) .
• Refer to INSTALLING THE TRIM STRIP FOR THE EXHAUST TURBOCHARGER .
• Refer to INSTALLING THE EXHAUST TURBOCHARGER (CYLINDER HEAD REMOVED) .
• Refer to DISASSEMBLING THE CYLINDER HEAD FROM THE SPECIAL TOOL .