11 00 039 Checking compression in all cylinders (N54)

Special tools required:

IMPORTANT: High tension - mortal danger: Interrupt power supply to ignition coils.

Necessary preliminary tasks:

Unscrew tip (1) from special tool 11 0 222 .

IMPORTANT: Then check the Schrader valve that is now visible for secure seating.

Fig 1: Identifying Special Tool (11 0 222) And (11 8 731)

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Prepare special tool 11 0 222 in conjunction with 11 8 732 and 11 8 731 .

Fig 2: Preparing Special Tools

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Screw special tool 11 0 222 into special tool 11 8 731 to 10 Nm.

IMPORTANT: Oil thread on special tool 11 8 731 .

Fig 3: Screwing Special Tool (11 0 222) Into Special Tool (11 8 731)

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Screw special tool 11 0 222 by hand into spark plug thread and connect special tool 11 0 224 .

Use adapter (1) if the compression pressure is being checked with the BMW diagnosis system.

Depress accelerator pedal and actuate starter until compression pressure stops rising.

Assemble engine

Delete fault memory.

Fig 4: Identifying Special Tools (11 0 222) And (11 0 224)

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