Compression Check: Testing and Inspection

1. Engine warm, oil temperature at least 30°C (86°F).
2. Throttle valve fully open during cranking
3. Disconnect harness connectors from ignition coil power output stage and from all six fuel injectors.
4. Use compression pressure recorder tool No. VAG 1381 together with adapter tool No. 1381/5, or equivalents, to measure compression.

NOTE: Refer to operating instructions for use of the recorder.

5. Operate starter until tester shows no additional increase in pressure.

Compression pressures:
New: 9-14 bar (131-203 psi).
Wear limit: 7.5 bar (109 psi).
Maximum permissible pressure difference between all cylinders: 3 bar (44 psi).

NOTE: If the test values are not within the specifications, recheck compression pressure after a test drive.