To Remove

Man: Put the gear lever in neutral. Auto: Put the selector lever in position P. Remove the key from the ignition switch.
Remove relay no. 8 in the ENGINE BAY ELECTRICAL CENTER 342 (UEC) (2006) or ENGINE BAY ELECTRICAL CENTER 342 (UEC) (2007) .

Fig 1: Removing Relay No. 8
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Connect 83 93 886 DIAGNOSTICS CABLE, LH SYSTEM to relay holder sleeves 87 and 30. Make sure that the switch is in the OFF position.

Fig 2: Connecting (83 93 886 Diagnostics Cable, LH System) To Relay Holder Sleeves 87 & 30
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Remove the cover over the ignition coils, undo the ignition coils and move them aside.

Fig 3: Removing Ignition Coil Covers
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Remove the spark plugs.

Fig 4: Removing Spark Plugs
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Fit the Motometer compression tester for petrol engines to cylinder 1 with a new card.

Fig 5: Installing Identifying Motometer Compression Tester For Petrol Engines To Cylinder With New Card
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Run the starter motor using the test lead switch until the needle stops rising.
Repeat the measurement procedure on the other cylinders. For minimum compression pressure, see GENERAL DATA .