2002 A4, 245x10 or 255x10 for rear rotors?

[Ming1.8t]

I'm getting some new pads, cross drilled and slotted rotors, stainless steel lines, and some high quality brake fluid in preparation for my first track day at the end of the month. Was looking on ECS Tuning and they have two different stock sizes for rear rotors. (245x10 and 255x10). Does any one know which size I should be looking at for a 2002 A4 1.8t quattro? Car was manufactured in May of 2002. Any help you all might have would be greatly appreciated.

[AudiA4_20T]

I wonder that too mine is an 02 also

[Ming1.8t]

A member on another board answered this for me (thanks DocS4), 2002 came with a 245x10 (9.6inch) rear rotor. It looks like starting with the 2003 model year they went to the
255x10 (10 inch) rear rotor when they went to 17in wheels. Hope this helps.

[dougyfresh]

I guess you could also measure what you've got.

[A4ringedONE8T]

The 3.0 A4 has had the 25mm rotor since its exsistance. The 1.8T has the 245mm 02-mid 04, late model year 04's and 05's have the 255

If your an 02' 1.8T you have the 245's

[A4ringedONE8T]

A member on another board answered this for me (thanks DocS4), 2002 came with a 245x10 (9.6inch) rear rotor. It looks like starting with the 2003 model year they went to the
255x10 (10 inch) rear rotor when they went to 17in wheels. Hope this helps.

WRONG! See above post

[ratty]

Erm, I have a MY03 (7/02 build) 1.8Tq w/ 255mm rears. At least in Oz the 120Kw/163hp upgrade introduced the larger brakes.

[quattrotman]

Just bust out the tape measure to be sure.

[jeremy@matrix]

The 3.0 A4 has had the 25mm rotor since its exsistance. The 1.8T has the 245mm 02-mid 04, late model year 04's and 05's have the 255

If your an 02' 1.8T you have the 245's

That doesn't always seem to be true. Per my notes, an '03 A4 1.8TQ might have 245s or 255s.

Even vehicle option codes can be incorrect.

Best thing to do is to measure the stockers or better yet look for a part number if you can find one.