Jetta GLS VR6 V6-2.8L (AFP) (2001)
Compression Check: Testing and Inspection
Compression pressure, checking
Special tools, equipment, test and inspection devices; required accessories
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3122 B Spark plug removal tool
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T10029 Spark plug connector tool
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VAG 1331 Torque wrench (5-50 Nm)
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VAG 1763 Compression tester
Test condition
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Engine oil temperature must be at least 30°C.
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Battery voltage must be at least 11.5 V.
Test procedure
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Disconnect connector from heating resistor (N79) and remove intake hose between upper half of air filter and throttle control unit (J338) together
with crankcase purge valve.
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Use assembly tool T10029 to remove spark plug connector and ignition lines.
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Remove engine cover.
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Remove spark plugs with spark plug tool 3122 B.