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Consolidated Macan Brembo upgrade thread (READ FIRST POST)

zucchinies

Go Kart Newbie
Location
San Diego
Car(s)
2020 A3
Welp, the last thing I was waiting for finally came in (Red Rubber Grease) and I re-assembled my calipers and sanded down the powder coat overspray and my calipers are finally ready to be installed. Plan on doing it this weekend or the next.

Tip for people re-assembling the calipers: The pistons are actually different. The one with a solid bottom with a raised circle in the middle goes to the side toward the bleeder screw. The piston with the hollow ring on the bottom goes toward the side with line that connects the 2 halves of the caliper. The dark pistons go on the inside of the caliper and the light ones go on the outside. Found this out the hard way and 80% of the time re-assembling my calipers was spent taking the pistons out and figuring out why it wont go down all the way. You also need to leave a bleeder screw open when putting in the final piston.

This frustrating experience taught me that I didn't even need to use an air gun to take the pistons out originally as I had to improvise and use 2 flat heads to get leverage and just pushed out with my thumb. My thumbs got a good workout after tonight cause it was a total bitch. If your calipers are new and you don't care about destroying your boots, this is an alternative if you don't have access to an air gun.
 

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Acadia18

Autocross Champion
Location
Rhode Island
Car(s)
2016 GTI SE
Welp, the last thing I was waiting for finally came in (Red Rubber Grease) and I re-assembled my calipers and sanded down the powder coat overspray and my calipers are finally ready to be installed. Plan on doing it this weekend or the next.

Tip for people re-assembling the calipers: The pistons are actually different. The one with a solid bottom with a raised circle in the middle goes to the side toward the bleeder screw. The piston with the hollow ring on the bottom goes toward the side with line that connects the 2 halves of the caliper. Found this out the hard way and 80% of the time re-assembling my calipers was spent taking the pistons out and figuring out why it wont go down all the way. You also need to leave a bleeder screw open when putting in the final piston.

This frustrating experience taught me that I didn't even need to use an air gun to take the pistons out originally as I had to improvise and use 2 flat heads to get leverage and just pushed out with my thumb. My thumbs got a good workout after tonight cause it was a total bitch. If your calipers are new and you don't care about destroying your boots, this is an alternative if you don't have access to an air gun.

It's hard to tell from your pictures due to the lighting, but it doesn't look like you have all the pistons in the right spots. There are two light colored pistons, and two dark colored pistons. They don't mix and match on the side. Your picture looks like a light and a dark one on the same side. The dark ones go on the inside and the light ones go on the outside. Can read more about it in this post, including some math and scientific shit about the difference between them...
 

zucchinies

Go Kart Newbie
Location
San Diego
Car(s)
2020 A3
It's hard to tell from your pictures due to the lighting, but it doesn't look like you have all the pistons in the right spots. There are two light colored pistons, and two dark colored pistons. They don't mix and match on the side. Your picture looks like a light and a dark one on the same side. The dark ones go on the inside and the light ones go on the outside. Can read more about it in this post, including some math and scientific shit about the difference between th
BRB as I go scream
 

zucchinies

Go Kart Newbie
Location
San Diego
Car(s)
2020 A3
Good thing you didn't install them yet!

And pls no more flat head action on the pistons.
true, and atm I have to use a flathead. I cover it in electrical tape and use two and not overleverage so I haven't damaged them. Fixed my mistake and it only took 20 minutes. Got to do it during a boring work meeting. Thanks for everyone's reply and helping me catch this early.
 

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zucchinies

Go Kart Newbie
Location
San Diego
Car(s)
2020 A3
Hey at least you didnt get them back from the powdercoaters and installed them under the assumption that they put everything back correctly.

And then go do 3 track days...
Reading this, I realized why so many powder coaters around my area refused to disassemble and re-assemble the calipers and requested they came in disassembled already. Too many nuances for someone that doesn't specialize in calipers to remember and the risk isn't worth it if they mess up. I felt like I read more than enough before I went through with powder coating my calipers and I still missed some stuff.
 

Acadia18

Autocross Champion
Location
Rhode Island
Car(s)
2016 GTI SE
true, and atm I have to use a flathead. I cover it in electrical tape and use two and not overleverage so I haven't damaged them. Fixed my mistake and it only took 20 minutes. Got to do it during a boring work meeting. Thanks for everyone's reply and helping me catch this early.

At least they look happy...

Screenshot_20210611-134212_Chrome.jpg
 

nono0044

Drag Racing Champion
Location
Toronto
Reading this, I realized why so many powder coaters around my area refused to disassemble and re-assemble the calipers and requested they came in disassembled already. Too many nuances for someone that doesn't specialize in calipers to remember and the risk isn't worth it if they mess up. I felt like I read more than enough before I went through with powder coating my calipers and I still missed some stuff.
There's definitely a different coating on the dark pistons than the lighter ones.

My guy put the lighter ones on the inside instead of the dark ones and they def got damaged a bit from the heat. Can't find my pics atm, but I'll post them up if I find them
 

GTIfan99

Autocross Champion
Location
FL
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