[MacanLyfe]

Hello I was trying to change my rear brake pads, and it seems the piston came out I'm trying to get it back in but nothing is working. I have attached photos if anyone can assist me with this I'd appreciate it.

Sorry if this is in the wrong sub.

 

[[email protected]>@W]

How did the caliper piston manage to "come out"?

Did someone activate the EPB after the pads were removed - or after the caliper was unbolted from the hub assembly?

This is quite odd and most puzzling.

What is preventing the piston from being reintroduced to the caliper body? In the photo, it looks as though there's some sort of rod extended...

 

[MacanLyfe]

That rod is what sits in the piston I can screw it down completely but the piston doesn't go down anymore

 

[torresfe]

Try to screw down the treads on the rod. Align the piston with the correspondent notches on the rod.
Lubricate with brake fluid the outside of piston and push back in place.

Other possible way; will be to remove the 2 bolts that hold the electric motor in place.
align the piston with the correspondent notches on the rod. Turn the outside motor connection point
with a large male Torx, while simultaneously pushing on piston.

 

[[email protected]>@W]

...and recall - brake fluid is both poisonous and removes paint - so try not to get it on lots of surfaces...

Of all the brake pads and calipers I've replaced over several decades, I hadn't seen a piston pop out of its caliper, unless someone
was doing a caliper rebuild and intentionally disassembled it.

Curious...

 

[torresfe]

...and recall - brake fluid is both poisonous and removes paint - so try not to get it on lots of surfaces...

Of all the brake pads and calipers I've replaced over several decades, I hadn't seen a piston pop out of its caliper, unless someone
was doing a caliper rebuild and intentionally disassembled it.

Curious...

The only way I can see this happening is by removing both rear calipers simultaneously. Replacing the pads on one side and reassemble.
Pressing on the pedal to make them sit back in place but forgetting the other side still removed or un-assemble. Just Speculating.

 

[VAGfan]

Sometimes it is good to have VW parts in your Porsche...

Rear brake caliper concern | VW Vortex - Volkswagen Forum

Volkswagen Tiguan Service and Repair Manual - Rear Brake Caliper, Servicing - Hydraulic Components (vwtiguan.org)