Scan Tool Testing and Procedures

Control Line to Turbocharger, Checking

When routing the vacuum lines, make sure they are not kinked, twisted or pinched. They could disable the vehicle.

Special tools, testers and auxiliary items required

• Hand Vacuum Pump (VAS 6213)

- Remove the hose on the center connection for the wastegate bypass regulator valve - arrow in I - as well as from the turbocharger vacuum diaphragm - arrow in II -.






- Seal off the opening in the hose with a suitable blind plug.

• Do not use threaded bolts or pins.

- Connect the hand vacuum pump (VAS 6213) to the other end of the hose and generator a vacuum of 0.6 bar.

- Watch the pressure gauge on the hand vacuum pump for approximately 30 seconds (sec.).

• The vacuum must not drop.

If the vacuum drops:

- Replace the vacuum hose.

If the vacuum does not decrease:

- Reconnect the vacuum hoses.