Compression Check: Testing and Inspection

Compression, checking

Requirements

^ Engine oil temperature not less than 30 degrees C

- Remove engine cover.





- Pull connector from Camshaft Position (CMP) sensor -G40- (arrow).
- With ignition switched off, disconnect connectors from ignition coils.
- Unbolt ignition coils.
- Remove spark plugs with spark plug spanner 3122B.
- Fully open throttle valve.
- Check compressions with compression tester V.A.G. 1381 or V.A.G. 1763.

Note:
Using the compression tester.

- Operate starter until tester shows no further pressure increase.

Compression pressure





- Install spark plugs and ignition coils.
- Check IDTC memory

Note:
DTCs will be stored in the memory because connectors have been disconnected. Therefore, check and erase DTC memory after installing the engine.

Tightening torque