Compression, Checking

Special tools and workshop equipment required 

• Spark Plug Removal Tool: 3122B 
• Compression Tester Kit: VAG1763 
• Adapter: VAG1763/13 

Test Sequence

• Engine oil temperature at least 30 °C (86 °F).
• Battery voltage at least 12.7 V.

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Disconnect the fuel injector connector -arrow-.

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-- Remove the ignition coils. Refer to IGNITION COILS, REMOVING AND INSTALLING .

-- Remove the spark plugs using the : 3122B  .

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-- Install the : VAG1763/13  as shown in the respective spark plug hole and connect the : VAG1763  .

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-- Check the compression using the : VAG1763  . Refer to the Operating Manual.

-- Press the accelerator pedal down all the way and operate the starter long enough until the tester no longer indicates an increase in pressure.

-- Repeat the procedure on each cylinder.

Assembling 

-- Install the spark plugs. Refer to OVERVIEW - IGNITION SYSTEM .

-- Install the ignition coils. Refer to IGNITION COILS, REMOVING AND INSTALLING .

-- Install the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Delete the DTC memory entries in the engine control module that have occurred during the test using the Vehicle Diagnostic Tester.