Checking compression of all cylinders (N63 N74 S63) (X6 M)

Special tools required: 

• 11 0 222
• 11 8 732
• 11 8 731
• 2 410 242

• Read out DME fault memory.
• Check stored faults
• Rectify faults
• Delete fault memory

Preliminary work needed: 

• Remove SPARK PLUGS .

Disconnect the plug connection (1) to the injectors on the DME control unit (bank 1).

Graphic:  N74O0

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Disconnect the plug connection (1) to the injectors on the DME control unit (bank 2, if installed).

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

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

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

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Connect special tool 2 410 242 to special tool 11 0 222 with the bayonet closure.

Screw in the 100-bar sensor (1) on the special tool 2 410 242 hand-tight.

Connect 100-Bar sensor (1) with the Integrated Measurement Interface Box.

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Manually screw special tool 11 0 222 into spark plug thread.

1. Connect vehicle with diagnostic tester.
2. Select service function "Check compression of all cylinders".
3. Observe diagnosis instructions.

Illustration:  N74.

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Vehicle with diagnosis

Connect 100-Bar sensor (1) with the Integrated Measurement Interface Box.

Observe diagnosis instructions.

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Assemble engine.

Delete the fault memory.