This master cylinder only has a 4 pin combination sensor and the s3 uses a pair of 3 pin ones, I need to figure out if I can use the combination sensor or I may have to get creative to fit the second sensor.
There is some work to do with brake lines and sensors that attach to the master cylinder, I bought a right and left hand drive version of the 26mm master cylinder so I could try both, I need to use the left hand drive version because the 2.5 tfsi turbo intake pipe gets in the way.
I have searched online for a larger master cylinder for the 8l s3/mk4 golf but there’s not much info about it, just a lot of dead end threads, there is some talk of a transporter one but nothing solid.
Here is my experiment, it’s a 26mm master cylinder and it involves turning the servo 90...
No I was not successful in getting a set at the time. I’m no longer interested, I have fallen out of love with my S3 due to other issues and will probably sell it or break it, it’s nothing against Trup’s product, I’m sure they are great and everyone who gets a set will be thrilled with them.