Passat Wagon L4-2.0L (ABA) (1995)
Compression Check: Testing and Inspection
Compression pressure, checking
Special tools, testers and auxiliary items
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Compression tester US 112O
Test conditions
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Engine oil temperature min. 30°C (86°F)
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Disconnect harness connector for engine speed (RPM) sensor G28.
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Disconnect ignition coil power output stage N157.
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Open throttle all the way (wide open throttle).
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Install compression tester US 1120.
Note:
Using the compression tester - Operating instructions.
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Operate starter until compression tester gauge shows no further pressure increase.
Compression pressure specifications
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New: 10-13 bar (145-189 psi)
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Wear limit: 7.5 bar (109 psi)
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Permissible difference between all cylinders: 3 bar (44 psi)