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Compression check

Compression check




1. Engine at running temperature (oil temperature >= 80°C).

2. Remove the engine protection cover.

3. Pull off the cable set connector (2) from the ignition module (3).

4. Remove the ignition module form the camshaft cover and cylinder head respectively and pull it off the spark plugs using KM-6009 ( 83 96 335 Removal tool, ignition discharge module Z18XE ) (1).

Remove the spark plug using 83 95 485 Spark plug socket, with guide sleeves .

5. Open the throttle valve using TECH II - use the "compression test" program (TECH II). Use a compression tester with measuring range up to 1750 kPa (17.5 bar).

6. Run the starter motor for about 4 seconds - min 300 rpm. The pressure difference between cylinders should not exceed 100 kPa (1 bar).

7. Fit the spark plugs with 83 95 485 Spark plug socket, with guide sleeves - tightening torque 25 Nm.

8. Put the ignition module onto the spark plugs and fit it onto the camshaft cover - tightening torque 8 Nm.

9. Fit the ignition module cable set connector.

10. Fit the engine cover.