Vacuum Pump: Service and Repair

Vacuum Pump

Do not disassemble the vacuum pump under any circumstances because it can cause the vacuum part to malfunction. The result would be brake booster failure.

Removing

- Remove the air filter housing, Refer to => [ Air Filter Housing ] Air Filter Housing.

- Remove the vacuum line - 2 - from the vacuum pump - 1 -.






- Press the release buttons and remove the crankcase ventilation connecting pipe - 1 - from the cylinder head cover.






- Disconnect the connector and remove it from the crankcase ventilation hose - 1 -.

- Expose the vacuum hoses - arrows -.

- Remove the bolt - 2 - (cannot be lost) and tilt the air guide pipe with the intake tube backward and remove from the turbocharger.

- Remove the bolt - arrow -.






- Unclip the preheating pipe - 1 - and remove it from the bracket.

- Seal the opening on the turbocharger with a plug from the engine bung set (VAS 6122).

- Remove the bolts - arrows -.






- Remove the vacuum pump - 2 - from the cylinder head.

Installing

Install in reverse order of removal. When doing this note the following:

• Make sure the vacuum pump coupling is seated correctly in the camshaft.

• Replace the seal.

- Install the vacuum pump and the loosely attach the bolts.






- Connect the vacuum line from the brake booster to the connection - 1 - for the vacuum pump - 2 -.

Tightening Sequence






- Tighten the vacuum pump - A - bolts in sequence - 1 through 4 -.

Tightening Specifications