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Home >> Volkswagen >> 2000 >> Passat Sedan (3B2) L4-1.8L Turbo (ATW) >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Compression Check >> Testing and Inspection
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Compression Check: Testing and Inspection


Compression, checking





Special tools and equipment
^ 3122B Spark plug wrench
^ VAG 1331 Torque wrench (5 to 50 Nm)
^ VAG 1763 Compression tester

Conditions
^ Engine oil temperature must be at least 30° C.

Work sequence
- Disconnect ignition coil connector(s).
- Remove ignition coils.
- Remove spark plugs with spark plug 3122B.
- Have a second technician fully depress accelerator pedal.
- Check compression using compression tester VAG 1381NAG 1763.

Note: - compression tester operating instructions.

- Operate starter until tester shows no further pressure increase.





Compression pressure

Permissible difference between all cylinders: 3 bar
- Install ignition coils and tighten to 10 Nm.
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