Attention. Install plugs at the air filter inlet and outlet and at the turbocharger inlet.
Disconnect the air supply pipe from the turbocharger (1) and remove the air intake (2).
Move up the wire harness groove (4).
Disconnect the oil pressure sensor connector (3).
Install accessories as described in chapter «Oil pressure test procedure (gasoline engines EP33, EP6)».
Connect a pressure gauge to the oil pressure tap. Remove the plugs.
Install the air supply pipe from the turbocharger (1). Start the engine.
Measure and record the oil pressure values.
Compare the pressure values with the values given in the table «Data for checking the lubrication system (all engines)».
Note. Work on the engine only if the measured values are below the values given in the table.
Remove all fixtures.
Attention. When reinstalling, all removed seals must be replaced with new ones.
Reinstall previously removed components.
Top up the engine oil level if necessary.