What size are my rear disc's? A3 Sportback 170 non quattro


Registered User
Hi Guys,

Need to replace my rear disc and pads but having problem's trying to figure out what size they are.

Car is basically a 170 Sline sportback Jan 2008 (Non Quattro)

when i do the EBC disc check its giving me 288mm but there is another one which is 256mm?

Anyone know?

Would prefer the bigger one but just need to know the correct size :)


Registered User
Thanks very much for the information!

would you happen to know if you can fit 288 if you have 255mm?