Replacing hydraulic pump

Fig 1: Hydraulic pump V6 (conversion)

Courtesy of PORSCHE OF NORTH AMERICA, INC.

A - Suction connection as of model year 2006

B - Suction connection until model year 2005

The hydraulic pump that was installed in vehicles up to model year 2005 will no longer be available as a spare part. Only the new hydraulic pump will be offered as of model year 2006.

With the introduction of the new hydraulic pump from model year 2006, a modified suction connection will be used for the suction pipe to the hydraulic reservoir, together with modified hose routing.

Spare parts for vehicles as of model year 2006:

New hydraulic pump, including the new suction connection for the suction pipe to the hydraulic reservoir.

Vehicles up to model year 2005 must have the new hydraulic pump installed. To do this, the suction connection on the hydraulic pump for the suction pipe to the hydraulic reservoir must be refitted.

Spare parts for vehicles up to model year 2005:

New hydraulic pump
Old suction connection (will be offered as a spare part)
O-ring
Hexagon-head bolt

Reason for the modified suction pipe to the hydraulic reservoir is the introduction of a new alternator as of model year 2006. Should this require a conversion, you can find further information in the repair instructions. Refer to 27 22 55 Replacing the generator - as of MY 2006 (Cayenne TIP, Cayenne MAN) .

1. Refit hydraulic pump suction connection (if necessary up to model year 2005). Use new O-ring and hexagon-headed bolt.

2. Refit pulley of old hydraulic pump on the new hydraulic pump.

Observe correct tightening torques → 48 TW Tightening torques for steering - as of MY 2003 (All Models Except Cayenne S TIO Titan) .