Cayenne GTS Brake Caliper Rebuild?

[Purist Porsche Parts]

Hello, I have a 2010 GTS with 18Z front brake calipers. I was replacing the pads and when I went to compress one of the pistons, one of the opposite pistons squeezed completely out. Can I rebuild (install new seal where the calipers are) for this caliper? The dealership said no, but I see that people sell rebuild kits.

Thanks

[RFM]

I do not see why a caliper can could not be overhauled, It is even recommended, after many years and miles driven, to check thoroughly and proceed with overhaul.

[JFP in PA]

A common DIY mistake.  Yes, you can rebuild individual pistons as needed.  For future reference, on dual piston calipers, you need to push on both sides at the same time to prevent this from happening; a specific tool is used for this:

 

 

Cost about $30 and saves a lot of headaches.

[clarksongli]

if you havent buggered up the seal on the piston you can just push it back in.  Do it all the time on my track car.

[royxaxa]

I have seen caliper rebuild kit on one of the major parts online stores. with piston and boots available

I did it before on my 09 CTTS when replacing the pads. one of the pistons seized.