Test Sequence
- Engine oil temperature at least 30 °C (86 °F).
- Battery voltage at least 12.7 V.
-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .
-- Disconnect the connector -1- for the FSI fuel injectors.
-- Disconnect the connector -2- for the MPI fuel injectors/fuel injection valves.
-- Remove the ignition coils with power output stages. Refer to IGNITION COILS WITH POWER OUTPUT STAGES, REMOVING AND INSTALLING .
-- Remove the spark plugs using the :3122B .
-- Install the :VAG1381/13 as shown in the respective spark plug hole and connect the :VAG1763 .
-- Check the compression using the :VAG1763 . Refer to the Operating Manual.
-- Press the accelerator pedal down all the way and operate starter long enough until the tester no longer indicates an increase in pressure.
-- Repeat the procedure on each cylinder.
| Compression Pressure | Pressure |
|---|---|
| New | 16.0 to 19.0 bar (232.06 to 275.57 psi) |
| Wear limit | 12.0 bar (174.04 psi) |
| Maximum difference between cylinders | 3.0 bar (43.5 psi) |