11 00 039 Checking compression in all cylinders (N43/N53/N54): Notes

WARNING: This page is about a different variant/trim than selected.

Special tools required:

IMPORTANT: High tension - mortal danger!
Interrupt power supply to ignition coils.
Read and comply with notes on compression pressure check.

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) Tip

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

Fig 2: Preparing Special Tools

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

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

IMPORTANT: Oil thread on special tool 11 8 731 .

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.

Fig 4: Installing Special Tool (11 0 222) Into Spark Plug Thread And Special Tool (11 0 224)

Assemble engine

Delete fault memory.