Vacuum Pump: Service and Repair

Removing and installing vacuum pump

Information

A vacuum pump is used to create the vacuum for the brake booster.

Vacuum pump up to 2008 model (tandem pump)

Up to 2008 model,, this vacuum pump, together with the oil suction pump on the right cylinder head, is designed as a tandem pump -3-. It is driven by the outlet camshaft on the right cylinder bank.





Tandem pump on right side of cylinder head - up to 2008 model

Vacuum pump as of 2009 model (solo pump)

As of 2009 model, the vacuum pump -1- is designed as a solo pump. It is driven by the outlet camshaft on the right cylinder bank.





Solo pump on right side of cylinder head - as of 2009 model (view from below)

Removing and installing vacuum pump

Removing vacuum pump - as of 2009 model

Information
When you loosen the fastening screws, engine oil will run out of the vacuum pump. Place a suitable container underneath to collect the emerging engine oil. The engine-oil level must be checked and topped up afterwards (following installation).

1. Remove vacuum pump -1- (solo pump on right side of cylinder head).
1.1. Disconnect vacuum pipe -2- at the vacuum pump -1- and on the engine.





Solo pump on right side of cylinder head - as of 2009 model

Pull off vacuum pipe -2- at the vacuum pump -1-.

1.2. Unscrew external Torx screws (M6 x 20) -4- and remove the vacuum pump.





Vacuum pump

Make sure not to loosen the internal Torx screws.

Installing vacuum pump - as of 2009 model

1. Clean contact surfaces.

Clean contact surfaces on the vacuum pump and cylinder head.

2. Install vacuum pump -1-.
2.1. Replace sealing rings -2 and 3-.

Grease sealing rings -2, 3- with "Kluber Syntheso Glep 1" (Porsche Part No. 000.043.204.68) before fitting them.





Vacuum pump

2.2. Align vacuum pump driver.
2.3. Fit vacuum pump -1- and screw in and tighten external Torx screws (M6 x 20) -4-. Tightening torque: 9 Nm (6.5 ftlb.).
3. Install vacuum pipe -2-.





Solo pump on right side of cylinder head - as of 2009 model

3.1. Fit vacuum pipe -2- and screw in and tighten M6 screws (on pump and engine). Tightening torque: 10 Nm (7.5 ftlb.).