Operation CHARM: Car repair manuals for everyone.

Compression Check: Testing and Inspection


Checking Compression Of All Cylinders

Special Tools Required:
^ 11 0 224
^ 11 8 490

Note: Read out fault memory of EMS/DME control module, check stored fault memory, rectify faults, clear fault memory. Turn off ignition.

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





Disconnect harness connector from coil pack.

Move lock slide (1).

Disconnect connector (2).





Remove all spark plugs.

Screw special tool 11 8 490 into spark plug thread and connect special tool 11 0 224

Check adaptor tool seal is in perfect condition.





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

Compression pressure.
Refer to Specifications.

Note: Disconnect the coil pack and cranking the engine will induce a fault code.

Connect DIS and clear stored faults.

Note: Read out fault memory of EMS/DME control module, check stored fault memory, rectify faults, clear fault memory.