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MNBoxster · 12-13-2005, 08:44 PM

Hi,

As John states, it could be the Hydraulic Line, which would be the easiest.

But considering that your fluid leaked at the Rear Wheels, it's most likely your Slave Cylinder Seal. These Slave Cylinders are fairly easy to replace. It can also be relined and rebuilt (although I'm not sure such a rebuild kit exists for the Boxster). Usually, though, it's more cost effective to simply replace the Slave altogether.

Oddly, the Porsche Technical Manual does not even have a procedure for R & R'ing the Slave Cylinder. It does appear to be attached with one M8 Bolt and the Manual does state a Torque Value for this - 23Nm (17 ftlb.). You'll also need a set of Flare Nut Wrenches to loosen/attach the Hydraulic Line to the Slave. Finally, the Manual states that you MUST use a Pressure Bleeder to Bleed the Line with the Clutch Pedal Fully Depressed, and that you must maintain a Bleed Pressure of 1.5 BAR (21.75PSI). Hope this helps... Jim '99

12-13-2005, 08:44 PM	#8
MNBoxster Registered User Join Date: Sep 2005 Location: Minneapolis/St. Paul, Minnesota, USA Posts: 3,308	Hi, As John states, it could be the Hydraulic Line, which would be the easiest. But considering that your fluid leaked at the Rear Wheels, it's most likely your Slave Cylinder Seal. These Slave Cylinders are fairly easy to replace. It can also be relined and rebuilt (although I'm not sure such a rebuild kit exists for the Boxster). Usually, though, it's more cost effective to simply replace the Slave altogether. Oddly, the Porsche Technical Manual does not even have a procedure for R & R'ing the Slave Cylinder. It does appear to be attached with one M8 Bolt and the Manual does state a Torque Value for this - 23Nm (17 ftlb.). You'll also need a set of Flare Nut Wrenches to loosen/attach the Hydraulic Line to the Slave. Finally, the Manual states that you MUST use a Pressure Bleeder to Bleed the Line with the Clutch Pedal Fully Depressed, and that you must maintain a Bleed Pressure of 1.5 BAR (21.75PSI). Hope this helps... Jim '99