volkswagen Workshop Repair Guides

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Compression Check: Testing and Inspection

Compression Pressure, Checking

NOTE:

Engine oil temperature minimum 3O° C (86° F)
Throttle valve open fully (accelerator pedal in full throttle position)

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remove all spark plugs

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disconnect coil wire at ignition distributor and connect to ground with clamp

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check compression with tool US 1120

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operate starter until tester no longer indicates a rise in pressure

Compression Pressure Values

Powertrain Management > Tune-up and Engine Performance Checks > Compression Check > System Information > Specifications > Page 2067

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