3315419 - 1064AA Check turbo presure

Proceed with the removal   1016A10  sound-proofing cover - r + r Proceed with the removal   1060G16  pressure relief sensor - r rConnect the tool (1a) with the connecting pipe (1b) to the intake chamber in the housing for the excess pressure sensor.

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-	Connector	1.870.752.000

Fit the excess pressure sensor (2a) on the tool and secure it using the bolt (2b).Connect the electrical connection to the excess pressure sensor.Connect the pressure transducer to the tool.Position the Examiner/SDC diagnostic instrument in the interior compartment and make the connections.On the Examiner/SCD, select the 'pressure gauge' instrument and set it to acquire data in 'intake pressure' mode with full scale 2000 mmHg and time selection 10 seconds.Go out onto the road (observing the legal speed limits) and carry out the following test. On a stretch of motorway, drive the car at 2500 rpm in 4 ^th gear. Start graphic acquisition by pressing 'start' on the diagnostic instrument, and after about 2 seconds press the accelerator pedal fully until 3500 rpm is reached.After reaching this speed, release the accelerator pedal fully.Display the resulting graph and in the pressure constant part (*), the reading should be 1900-2080 mbar (1444-1581 mmHg) corresponding to a turbocharging value of 900-1000 mbar. On a fast non-urban journey, drive the car at 2500 rpm in 3 ^rd gear. Start graphic acquisition by pressing 'start' on the diagnostic instrument, and after about 2 seconds press the accelerator pedal fully until 3500 rpm is reached.After reaching this speed, release the accelerator pedal fully.Display the resulting graph and in the pressure constant part (*), the reading should be 1900-2000 mbar (1425-1500 mmHg) corresponding to a turbocharging value of 900-1000 mbar.

This test works for the Examiner diagnostic instrument. For the SDC diagnostic instrument, the part relating to the setting of the instrument and graphic acquisition should be revised.

Disconnect the Examiner/SDC and the pressure transducer.Disconnect the electrical connection from the excess pressure sensor.Undo the bolt and remove the excess pressure sensor from the tool.Remove the tool for checking the supercharging pressure. Proceed with the refitting   1060G16  pressure relief sensor - r r Proceed with the refitting   1016A10  sound-proofing cover - r + r