Z1OwnersClub GB

Posted: **Thu Jul 05, 2012 8:52 pm**

How can i tell the difference between a 5/8 and a 1/2 master cylinder fitted to an A4.

Posted: **Thu Jul 05, 2012 8:55 pm**

if its not stamped underneath 5/8 then u will have to measure the bore where the piston is

Posted: **Thu Jul 05, 2012 9:26 pm**

Genuine 5/8 are stamped near the outlet,i am fairly sure..

5/8 master cylinder